From patchwork Wed Oct 10 17:22:46 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10635013 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 98FFE15E2 for ; Wed, 10 Oct 2018 17:25:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8B3962A2A8 for ; Wed, 10 Oct 2018 17:25:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7EEC02A314; Wed, 10 Oct 2018 17:25:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3E11A2A2B6 for ; Wed, 10 Oct 2018 17:25:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726910AbeJKAqd (ORCPT ); Wed, 10 Oct 2018 20:46:33 -0400 Received: from shell.v3.sk ([90.176.6.54]:54489 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726568AbeJKAqc (ORCPT ); Wed, 10 Oct 2018 20:46:32 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 5FCC9BCFAF; Wed, 10 Oct 2018 19:23:19 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id IVdP-ZxsiA4f; Wed, 10 Oct 2018 19:23:04 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id C9410BCF86; Wed, 10 Oct 2018 19:23:03 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id hn-JQh2C33tb; Wed, 10 Oct 2018 19:23:02 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 4D018BCFAA; Wed, 10 Oct 2018 19:23:02 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel , stable@vger.kernel.org Subject: [PATCH 01/15] power: supply: olpc_battery: correct the temperature units Date: Wed, 10 Oct 2018 19:22:46 +0200 Message-Id: <20181010172300.317643-2-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP According to [1] and [2], the temperature values are in tenths of degree Celsius. Exposing the Celsius value makes the battery appear on fire: $ upower -i /org/freedesktop/UPower/devices/battery_olpc_battery ... temperature: 236.9 degrees C Tested on OLPC XO-1 and OLPC XO-1.75 laptops. [1] include/linux/power_supply.h [2] Documentation/power/power_supply_class.txt Cc: stable@vger.kernel.org Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- drivers/power/supply/olpc_battery.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c index 6da79ae14860..5a97e42a3547 100644 --- a/drivers/power/supply/olpc_battery.c +++ b/drivers/power/supply/olpc_battery.c @@ -428,14 +428,14 @@ static int olpc_bat_get_property(struct power_supply *psy, if (ret) return ret; - val->intval = (s16)be16_to_cpu(ec_word) * 100 / 256; + val->intval = (s16)be16_to_cpu(ec_word) * 10 / 256; break; case POWER_SUPPLY_PROP_TEMP_AMBIENT: ret = olpc_ec_cmd(EC_AMB_TEMP, NULL, 0, (void *)&ec_word, 2); if (ret) return ret; - val->intval = (int)be16_to_cpu(ec_word) * 100 / 256; + val->intval = (int)be16_to_cpu(ec_word) * 10 / 256; break; case POWER_SUPPLY_PROP_CHARGE_COUNTER: ret = olpc_ec_cmd(EC_BAT_ACR, NULL, 0, (void *)&ec_word, 2); From patchwork Wed Oct 10 17:22:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10635003 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F262F46E4 for ; Wed, 10 Oct 2018 17:25:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB6282A2B6 for ; Wed, 10 Oct 2018 17:25:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BFBDE2A314; Wed, 10 Oct 2018 17:25:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 771DC2A2B6 for ; Wed, 10 Oct 2018 17:25:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727013AbeJKAqe (ORCPT ); Wed, 10 Oct 2018 20:46:34 -0400 Received: from shell.v3.sk ([90.176.6.54]:54503 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726562AbeJKAqd (ORCPT ); Wed, 10 Oct 2018 20:46:33 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id D4316BCFB2; Wed, 10 Oct 2018 19:23:21 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id dZAwRwVcRFVa; Wed, 10 Oct 2018 19:23:06 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 4CBC2BCFB9; Wed, 10 Oct 2018 19:23:05 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id tkl_6IDQcKjx; Wed, 10 Oct 2018 19:23:03 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id DFA07BCFAD; Wed, 10 Oct 2018 19:23:02 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 02/15] Revert "platform/olpc: Make ec explicitly non-modular" Date: Wed, 10 Oct 2018 19:22:47 +0200 Message-Id: <20181010172300.317643-3-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP It doesn't make sense to always have this built-in, e.g. on ARM multiplatform kernels. A better way to address the problem the original commit aimed to solve is to fix Kconfig. This reverts commit f48d1496b8537d75776478c6942dd87f34d7f270. Signed-off-by: Lubomir Rintel --- drivers/platform/olpc/olpc-ec.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c index 374a8028fec7..f99b183d5296 100644 --- a/drivers/platform/olpc/olpc-ec.c +++ b/drivers/platform/olpc/olpc-ec.c @@ -1,8 +1,6 @@ /* * Generic driver for the OLPC Embedded Controller. * - * Author: Andres Salomon - * * Copyright (C) 2011-2012 One Laptop per Child Foundation. * * Licensed under the GPL v2 or later. @@ -14,7 +12,7 @@ #include #include #include -#include +#include #include #include #include @@ -328,4 +326,8 @@ static int __init olpc_ec_init_module(void) { return platform_driver_register(&olpc_ec_plat_driver); } + arch_initcall(olpc_ec_init_module); + +MODULE_AUTHOR("Andres Salomon "); +MODULE_LICENSE("GPL"); From patchwork Wed Oct 10 17:22:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634999 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5E20569B5 for ; Wed, 10 Oct 2018 17:24:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5093A2A2A8 for ; Wed, 10 Oct 2018 17:24:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 44A7E2A3CD; Wed, 10 Oct 2018 17:24:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F18CC2A2A8 for ; Wed, 10 Oct 2018 17:24:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727166AbeJKAqh (ORCPT ); Wed, 10 Oct 2018 20:46:37 -0400 Received: from shell.v3.sk ([90.176.6.54]:54520 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726568AbeJKAqg (ORCPT ); Wed, 10 Oct 2018 20:46:36 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 5DD85BCFB9; Wed, 10 Oct 2018 19:23:25 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id ENU2YYY79_UT; Wed, 10 Oct 2018 19:23:12 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 15E2EBCFC1; Wed, 10 Oct 2018 19:23:07 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id WODnu4ekLcZd; Wed, 10 Oct 2018 19:23:04 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 77C98BCFB5; Wed, 10 Oct 2018 19:23:03 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 03/15] dt-bindings: olpc,xo1.75-ec: Add OLPC XO-1.75 EC bindings Date: Wed, 10 Oct 2018 19:22:48 +0200 Message-Id: <20181010172300.317643-4-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The OLPC XO-1.75 Embedded Controller is a SPI master that uses extra signals for handshaking. It needs to know when is the slave (Linux) side's TX FIFO ready for transfer (the ready-gpio signal on the SPI controller node) and when does it wish to respond with a command (the cmd-gpio property). Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- .../bindings/misc/olpc,xo1.75-ec.txt | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt diff --git a/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt b/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt new file mode 100644 index 000000000000..14385fee65d2 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/olpc,xo1.75-ec.txt @@ -0,0 +1,24 @@ +OLPC XO-1.75 Embedded Controller + +Required properties: +- compatible: Should be "olpc,xo1.75-ec". +- cmd-gpio: gpio specifier of the CMD pin + +The embedded controller requires the SPI controller driver to signal readiness +to receive a transfer (that is, when TX FIFO contains the response data) by +strobing the ACK pin with the ready signal. See the "ready-gpio" property of the +SSP binding as documented in: +. + +Example: + &ssp3 { + spi-slave; + status = "okay"; + ready-gpio = <&gpio 125 GPIO_ACTIVE_HIGH>; + + slave { + compatible = "olpc,xo1.75-ec"; + spi-cpha; + cmd-gpio = <&gpio 155 GPIO_ACTIVE_HIGH>; + }; + }; From patchwork Wed Oct 10 17:22:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634925 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6E91D17E3 for ; Wed, 10 Oct 2018 17:23:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 079E328906 for ; Wed, 10 Oct 2018 17:23:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EF80C28A0B; Wed, 10 Oct 2018 17:23:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A919228906 for ; Wed, 10 Oct 2018 17:23:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727277AbeJKAqk (ORCPT ); Wed, 10 Oct 2018 20:46:40 -0400 Received: from shell.v3.sk ([90.176.6.54]:54536 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727164AbeJKAqh (ORCPT ); Wed, 10 Oct 2018 20:46:37 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 408B0BCFC1; Wed, 10 Oct 2018 19:23:27 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id Uj_JmwcvYwMj; Wed, 10 Oct 2018 19:23:14 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id A7AEBBCFC3; Wed, 10 Oct 2018 19:23:08 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id pj7t4kAGu0di; Wed, 10 Oct 2018 19:23:04 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 0D82CBCFAF; Wed, 10 Oct 2018 19:23:04 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 04/15] Platform: OLPC: Remove an unused include Date: Wed, 10 Oct 2018 19:22:49 +0200 Message-Id: <20181010172300.317643-5-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Also, the header is x86 specific, while there are non-x86 OLPC machines. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- drivers/platform/olpc/olpc-ec.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c index f99b183d5296..35a21c66cd0d 100644 --- a/drivers/platform/olpc/olpc-ec.c +++ b/drivers/platform/olpc/olpc-ec.c @@ -15,7 +15,6 @@ #include #include #include -#include struct ec_cmd_desc { u8 cmd; From patchwork Wed Oct 10 17:22:50 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634987 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9D28316B1 for ; Wed, 10 Oct 2018 17:24:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 89E612A0B5 for ; Wed, 10 Oct 2018 17:24:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7929A2A2EB; Wed, 10 Oct 2018 17:24:50 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 096412A0B5 for ; Wed, 10 Oct 2018 17:24:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727333AbeJKAqp (ORCPT ); Wed, 10 Oct 2018 20:46:45 -0400 Received: from shell.v3.sk ([90.176.6.54]:54552 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726911AbeJKAqp (ORCPT ); Wed, 10 Oct 2018 20:46:45 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id A4042BCFBD; Wed, 10 Oct 2018 19:23:34 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id i_nqN1EWszN0; Wed, 10 Oct 2018 19:23:19 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 473E9BCFBC; Wed, 10 Oct 2018 19:23:10 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id Q0V_-29Cc2dm; Wed, 10 Oct 2018 19:23:05 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id A4A44BCFAA; Wed, 10 Oct 2018 19:23:04 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 05/15] Platform: OLPC: Move OLPC config symbol out of x86 tree Date: Wed, 10 Oct 2018 19:22:50 +0200 Message-Id: <20181010172300.317643-6-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP There are ARM OLPC machines that use mostly the same drivers, including EC infrastructure, DCON and Battery. While at that, fix Kconfig to allow building this as a module. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- arch/x86/Kconfig | 11 ----------- drivers/input/mouse/Kconfig | 2 +- drivers/platform/Kconfig | 2 ++ drivers/platform/olpc/Kconfig | 11 +++++++++++ drivers/staging/olpc_dcon/Kconfig | 2 +- 5 files changed, 15 insertions(+), 13 deletions(-) create mode 100644 drivers/platform/olpc/Kconfig diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 1a0be022f91d..be6af341a718 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2729,17 +2729,6 @@ config SCx200HR_TIMER processor goes idle (as is done by the scheduler). The other workaround is idle=poll boot option. -config OLPC - bool "One Laptop Per Child support" - depends on !X86_PAE - select GPIOLIB - select OF - select OF_PROMTREE - select IRQ_DOMAIN - ---help--- - Add support for detecting the unique features of the OLPC - XO hardware. - config OLPC_XO1_PM bool "OLPC XO-1 Power Management" depends on OLPC && MFD_CS5535 && PM_SLEEP diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig index 566a1e3aa504..58034892a4df 100644 --- a/drivers/input/mouse/Kconfig +++ b/drivers/input/mouse/Kconfig @@ -165,7 +165,7 @@ config MOUSE_PS2_TOUCHKIT config MOUSE_PS2_OLPC bool "OLPC PS/2 mouse protocol extension" - depends on MOUSE_PS2 && OLPC + depends on MOUSE_PS2 && X86 && OLPC help Say Y here if you have an OLPC XO-1 laptop (with built-in PS/2 touchpad/tablet device). The manufacturer calls the diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig index d4c2e424a700..4313d73d3618 100644 --- a/drivers/platform/Kconfig +++ b/drivers/platform/Kconfig @@ -10,3 +10,5 @@ source "drivers/platform/goldfish/Kconfig" source "drivers/platform/chrome/Kconfig" source "drivers/platform/mellanox/Kconfig" + +source "drivers/platform/olpc/Kconfig" diff --git a/drivers/platform/olpc/Kconfig b/drivers/platform/olpc/Kconfig new file mode 100644 index 000000000000..7b736c9e67ac --- /dev/null +++ b/drivers/platform/olpc/Kconfig @@ -0,0 +1,11 @@ +config OLPC + tristate "One Laptop Per Child support" + depends on X86 || ARM || COMPILE_TEST + depends on !X86_PAE + select GPIOLIB + select OF + select OF_PROMTREE if X86 + select IRQ_DOMAIN + help + Add support for detecting the unique features of the OLPC + XO hardware. diff --git a/drivers/staging/olpc_dcon/Kconfig b/drivers/staging/olpc_dcon/Kconfig index c91a56f77bcb..07f9f1de8667 100644 --- a/drivers/staging/olpc_dcon/Kconfig +++ b/drivers/staging/olpc_dcon/Kconfig @@ -1,6 +1,6 @@ config FB_OLPC_DCON tristate "One Laptop Per Child Display CONtroller support" - depends on OLPC && FB + depends on X86 && OLPC && FB depends on I2C depends on (GPIO_CS5535 || GPIO_CS5535=n) select BACKLIGHT_CLASS_DEVICE From patchwork Wed Oct 10 17:22:51 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634949 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C296816B1 for ; Wed, 10 Oct 2018 17:24:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8088329ABA for ; Wed, 10 Oct 2018 17:24:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 742C32A2A8; Wed, 10 Oct 2018 17:24:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1459A29ABA for ; Wed, 10 Oct 2018 17:24:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727785AbeJKArF (ORCPT ); Wed, 10 Oct 2018 20:47:05 -0400 Received: from shell.v3.sk ([90.176.6.54]:54589 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727719AbeJKArF (ORCPT ); Wed, 10 Oct 2018 20:47:05 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 092C1BCFE4; Wed, 10 Oct 2018 19:23:54 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id F7R3WeAejUjw; Wed, 10 Oct 2018 19:23:18 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id E39F6BCFCA; Wed, 10 Oct 2018 19:23:10 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id xdWM2rHv0-aa; Wed, 10 Oct 2018 19:23:06 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 40BB6BCFB8; Wed, 10 Oct 2018 19:23:05 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 06/15] Platform: OLPC: Add XO-1.75 EC driver Date: Wed, 10 Oct 2018 19:22:51 +0200 Message-Id: <20181010172300.317643-7-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP It's based off the driver from the OLPC kernel sources. Somewhat modernized and cleaned up, for better or worse. Modified to plug into the olpc-ec driver infrastructure (so that battery interface and debugfs could be reused) and the SPI slave framework. Signed-off-by: Lubomir Rintel --- drivers/platform/olpc/Kconfig | 15 + drivers/platform/olpc/Makefile | 1 + drivers/platform/olpc/olpc-xo175-ec.c | 755 ++++++++++++++++++++++++++ 3 files changed, 771 insertions(+) create mode 100644 drivers/platform/olpc/olpc-xo175-ec.c diff --git a/drivers/platform/olpc/Kconfig b/drivers/platform/olpc/Kconfig index 7b736c9e67ac..7c643d24ad0f 100644 --- a/drivers/platform/olpc/Kconfig +++ b/drivers/platform/olpc/Kconfig @@ -9,3 +9,18 @@ config OLPC help Add support for detecting the unique features of the OLPC XO hardware. + +if OLPC + +config OLPC_XO175_EC + tristate "OLPC XO 1.75 Embedded Controller" + depends on ARCH_MMP || COMPILE_TEST + select SPI_SLAVE + help + Include support for the OLPC XO Embedded Controller (EC). The EC + provides various platform services, including support for the power, + button, restart, shutdown and battery charging status. + + Unless you have an OLPC XO laptop, you will want to say N. + +endif diff --git a/drivers/platform/olpc/Makefile b/drivers/platform/olpc/Makefile index dc8b26bc7209..5b43f383289e 100644 --- a/drivers/platform/olpc/Makefile +++ b/drivers/platform/olpc/Makefile @@ -2,3 +2,4 @@ # OLPC XO platform-specific drivers # obj-$(CONFIG_OLPC) += olpc-ec.o +obj-$(CONFIG_OLPC_XO175_EC) += olpc-xo175-ec.o diff --git a/drivers/platform/olpc/olpc-xo175-ec.c b/drivers/platform/olpc/olpc-xo175-ec.c new file mode 100644 index 000000000000..6333a1366730 --- /dev/null +++ b/drivers/platform/olpc/olpc-xo175-ec.c @@ -0,0 +1,755 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Driver for the OLPC XO-1.75 Embedded Controller. + * + * The EC protocol is documented at: + * http://wiki.laptop.org/go/XO_1.75_HOST_to_EC_Protocol + * + * Copyright (C) 2010 One Laptop per Child Foundation. + * Copyright (C) 2018 Lubomir Rintel + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct ec_cmd_t { + u8 cmd; + u8 bytes_returned; +}; + +enum ec_chan_t { + CHAN_NONE = 0, + CHAN_SWITCH, + CHAN_CMD_RESP, + CHAN_KEYBOARD, + CHAN_TOUCHPAD, + CHAN_EVENT, + CHAN_DEBUG, + CHAN_CMD_ERROR, +}; + +/* + * EC events + */ +#define EVENT_AC_CHANGE 1 /* AC plugged/unplugged */ +#define EVENT_BATTERY_STATUS 2 /* Battery low/full/error/gone */ +#define EVENT_BATTERY_CRITICAL 3 /* Battery critical voltage */ +#define EVENT_BATTERY_SOC_CHANGE 4 /* 1% SOC Change */ +#define EVENT_BATTERY_ERROR 5 /* Abnormal error, query for cause */ +#define EVENT_POWER_PRESSED 6 /* Power button was pressed */ +#define EVENT_POWER_PRESS_WAKE 7 /* Woken up with a power button */ +#define EVENT_TIMED_HOST_WAKE 8 /* Host wake timer */ +#define EVENT_OLS_HIGH_LIMIT 9 /* OLS crossed dark threshold */ +#define EVENT_OLS_LOW_LIMIT 10 /* OLS crossed light threshold */ + +/* + * EC commands + * (from http://dev.laptop.org/git/users/rsmith/ec-1.75/tree/ec_cmd.h) + */ +#define CMD_GET_API_VERSION 0x08 /* out: u8 */ +#define CMD_READ_VOLTAGE 0x10 /* out: u16, *9.76/32, mV */ +#define CMD_READ_CURRENT 0x11 /* out: s16, *15.625/120, mA */ +#define CMD_READ_ACR 0x12 /* out: s16, *6250/15, uAh */ +#define CMD_READ_BATT_TEMPERATURE 0x13 /* out: u16, *100/256, deg C */ +#define CMD_READ_AMBIENT_TEMPERATURE 0x14 /* unimplemented, no hardware */ +#define CMD_READ_BATTERY_STATUS 0x15 /* out: u8, bitmask */ +#define CMD_READ_SOC 0x16 /* out: u8, percentage */ +#define CMD_READ_GAUGE_ID 0x17 /* out: u8 * 8 */ +#define CMD_READ_GAUGE_DATA 0x18 /* in: u8 addr, out: u8 data */ +#define CMD_READ_BOARD_ID 0x19 /* out: u16 (platform id) */ +#define CMD_READ_BATT_ERR_CODE 0x1f /* out: u8, error bitmask */ +#define CMD_SET_DCON_POWER 0x26 /* in: u8 */ +#define CMD_RESET_EC 0x28 /* none */ +#define CMD_READ_BATTERY_TYPE 0x2c /* out: u8 */ +#define CMD_SET_AUTOWAK 0x33 /* out: u8 */ +#define CMD_SET_EC_WAKEUP_TIMER 0x36 /* in: u32, out: ? */ +#define CMD_READ_EXT_SCI_MASK 0x37 /* ? */ +#define CMD_WRITE_EXT_SCI_MASK 0x38 /* ? */ +#define CMD_CLEAR_EC_WAKEUP_TIMER 0x39 /* none */ +#define CMD_ENABLE_RUNIN_DISCHARGE 0x3B /* none */ +#define CMD_DISABLE_RUNIN_DISCHARGE 0x3C /* none */ +#define CMD_READ_MPPT_ACTIVE 0x3d /* out: u8 */ +#define CMD_READ_MPPT_LIMIT 0x3e /* out: u8 */ +#define CMD_SET_MPPT_LIMIT 0x3f /* in: u8 */ +#define CMD_DISABLE_MPPT 0x40 /* none */ +#define CMD_ENABLE_MPPT 0x41 /* none */ +#define CMD_READ_VIN 0x42 /* out: u16 */ +#define CMD_EXT_SCI_QUERY 0x43 /* ? */ +#define RSP_KEYBOARD_DATA 0x48 /* ? */ +#define RSP_TOUCHPAD_DATA 0x49 /* ? */ +#define CMD_GET_FW_VERSION 0x4a /* out: u8 * 16 */ +#define CMD_POWER_CYCLE 0x4b /* none */ +#define CMD_POWER_OFF 0x4c /* none */ +#define CMD_RESET_EC_SOFT 0x4d /* none */ +#define CMD_READ_GAUGE_U16 0x4e /* ? */ +#define CMD_ENABLE_MOUSE 0x4f /* ? */ +#define CMD_ECHO 0x52 /* in: u8 * 5, out: u8 * 5 */ +#define CMD_GET_FW_DATE 0x53 /* out: u8 * 16 */ +#define CMD_GET_FW_USER 0x54 /* out: u8 * 16 */ +#define CMD_TURN_OFF_POWER 0x55 /* none (same as 0x4c) */ +#define CMD_READ_OLS 0x56 /* out: u16 */ +#define CMD_OLS_SMT_LEDON 0x57 /* none */ +#define CMD_OLS_SMT_LEDOFF 0x58 /* none */ +#define CMD_START_OLS_ASSY 0x59 /* none */ +#define CMD_STOP_OLS_ASSY 0x5a /* none */ +#define CMD_OLS_SMTTEST_STOP 0x5b /* none */ +#define CMD_READ_VIN_SCALED 0x5c /* out: u16 */ +#define CMD_READ_BAT_MIN_W 0x5d /* out: u16 */ +#define CMD_READ_BAR_MAX_W 0x5e /* out: u16 */ +#define CMD_RESET_BAT_MINMAX_W 0x5f /* none */ +#define CMD_READ_LOCATION 0x60 /* in: u16 addr, out: u8 data */ +#define CMD_WRITE_LOCATION 0x61 /* in: u16 addr, u8 data */ +#define CMD_KEYBOARD_CMD 0x62 /* in: u8, out: ? */ +#define CMD_TOUCHPAD_CMD 0x63 /* in: u8, out: ? */ +#define CMD_GET_FW_HASH 0x64 /* out: u8 * 16 */ +#define CMD_SUSPEND_HINT 0x65 /* in: u8 */ +#define CMD_ENABLE_WAKE_TIMER 0x66 /* in: u8 */ +#define CMD_SET_WAKE_TIMER 0x67 /* in: 32 */ +#define CMD_ENABLE_WAKE_AUTORESET 0x68 /* in: u8 */ +#define CMD_OLS_SET_LIMITS 0x69 /* in: u16, u16 */ +#define CMD_OLS_GET_LIMITS 0x6a /* out: u16, u16 */ +#define CMD_OLS_SET_CEILING 0x6b /* in: u16 */ +#define CMD_OLS_GET_CEILING 0x6c /* out: u16 */ + +/* + * Accepted EC commands, and how many bytes they return. There are plenty + * of EC commands that are no longer implemented, or are implemented only on + * certain older boards. + */ +static const struct ec_cmd_t olpc_xo175_ec_cmds[] = { + { CMD_GET_API_VERSION, 1 }, + { CMD_READ_VOLTAGE, 2 }, + { CMD_READ_CURRENT, 2 }, + { CMD_READ_ACR, 2 }, + { CMD_READ_BATT_TEMPERATURE, 2 }, + { CMD_READ_BATTERY_STATUS, 1 }, + { CMD_READ_SOC, 1 }, + { CMD_READ_GAUGE_ID, 8 }, + { CMD_READ_GAUGE_DATA, 1 }, + { CMD_READ_BOARD_ID, 2 }, + { CMD_READ_BATT_ERR_CODE, 1 }, + { CMD_SET_DCON_POWER, 0 }, + { CMD_RESET_EC, 0 }, + { CMD_READ_BATTERY_TYPE, 1 }, + { CMD_ENABLE_RUNIN_DISCHARGE, 0 }, + { CMD_DISABLE_RUNIN_DISCHARGE, 0 }, + { CMD_READ_MPPT_ACTIVE, 1 }, + { CMD_READ_MPPT_LIMIT, 1 }, + { CMD_SET_MPPT_LIMIT, 0 }, + { CMD_DISABLE_MPPT, 0 }, + { CMD_ENABLE_MPPT, 0 }, + { CMD_READ_VIN, 2 }, + { CMD_GET_FW_VERSION, 16 }, + { CMD_POWER_CYCLE, 0 }, + { CMD_POWER_OFF, 0 }, + { CMD_RESET_EC_SOFT, 0 }, + { CMD_ECHO, 5 }, + { CMD_GET_FW_DATE, 16 }, + { CMD_GET_FW_USER, 16 }, + { CMD_TURN_OFF_POWER, 0 }, + { CMD_READ_OLS, 2 }, + { CMD_OLS_SMT_LEDON, 0 }, + { CMD_OLS_SMT_LEDOFF, 0 }, + { CMD_START_OLS_ASSY, 0 }, + { CMD_STOP_OLS_ASSY, 0 }, + { CMD_OLS_SMTTEST_STOP, 0 }, + { CMD_READ_VIN_SCALED, 2 }, + { CMD_READ_BAT_MIN_W, 2 }, + { CMD_READ_BAR_MAX_W, 2 }, + { CMD_RESET_BAT_MINMAX_W, 0 }, + { CMD_READ_LOCATION, 1 }, + { CMD_WRITE_LOCATION, 0 }, + { CMD_GET_FW_HASH, 16 }, + { CMD_SUSPEND_HINT, 0 }, + { CMD_ENABLE_WAKE_TIMER, 0 }, + { CMD_SET_WAKE_TIMER, 0 }, + { CMD_ENABLE_WAKE_AUTORESET, 0 }, + { CMD_OLS_SET_LIMITS, 0 }, + { CMD_OLS_GET_LIMITS, 4 }, + { CMD_OLS_SET_CEILING, 0 }, + { CMD_OLS_GET_CEILING, 2 }, + { CMD_READ_EXT_SCI_MASK, 2 }, + { CMD_WRITE_EXT_SCI_MASK, 0 }, + + { 0 }, +}; + +#define EC_CMD_LEN 8 +#define EC_MAX_RESP_LEN 16 +#define LOG_BUF_SIZE 127 + +enum ec_state_t { + CMD_STATE_IDLE = 0, + CMD_STATE_WAITING_FOR_SWITCH, + CMD_STATE_CMD_IN_TX_FIFO, + CMD_STATE_CMD_SENT, + CMD_STATE_RESP_RECEIVED, + CMD_STATE_ERROR_RECEIVED, +}; + +struct olpc_xo175_ec { + struct spi_device *spi; + + struct spi_transfer xfer; + struct spi_message msg; + + u8 tx_buf[EC_CMD_LEN]; + u8 rx_buf[EC_MAX_RESP_LEN]; + + bool suspended; + + /* GPIOs for ACK and CMD signals. */ + struct gpio_desc *gpio_cmd; + + /* Command handling related state. */ + spinlock_t cmd_state_lock; + int cmd_state; + bool cmd_running; + struct completion cmd_done; + u8 cmd[EC_CMD_LEN]; + int expected_resp_len; + u8 resp[EC_MAX_RESP_LEN]; + int resp_len; + + /* Power button. */ + struct input_dev *pwrbtn; + + /* Debug handling. */ + char logbuf[LOG_BUF_SIZE + 1]; + int logbuf_len; +}; + +static int olpc_xo175_ec_is_valid_cmd(u8 cmd) +{ + const struct ec_cmd_t *p; + + for (p = olpc_xo175_ec_cmds; p->cmd; p++) { + if (p->cmd == cmd) + return p->bytes_returned; + } + + return -1; +} + +static void olpc_xo175_ec_flush_logbuf(struct olpc_xo175_ec *priv) +{ + priv->logbuf[priv->logbuf_len] = 0; + priv->logbuf_len = 0; + + dev_dbg(&priv->spi->dev, "got debug string [%s]\n", priv->logbuf); +} + +static void olpc_xo175_ec_complete(void *arg); + +static void olpc_xo175_ec_send_command(struct olpc_xo175_ec *priv, u8 *cmd, + size_t cmdlen) +{ + int ret; + + memcpy(priv->tx_buf, cmd, cmdlen); + priv->xfer.len = cmdlen; + + spi_message_init_with_transfers(&priv->msg, &priv->xfer, 1); + + priv->msg.complete = olpc_xo175_ec_complete; + priv->msg.context = priv; + + ret = spi_async(priv->spi, &priv->msg); + if (ret) + dev_err(&priv->spi->dev, "spi_async() failed %d\n", ret); +} + +static void olpc_xo175_ec_read_packet(struct olpc_xo175_ec *priv) +{ + u8 nonce[] = {0xA5, 0x5A}; + + olpc_xo175_ec_send_command(priv, nonce, sizeof(nonce)); +} + +static void olpc_xo175_ec_complete(void *arg) +{ + struct olpc_xo175_ec *priv = arg; + struct device *dev = &priv->spi->dev; + struct power_supply *psy; + unsigned long flags; + u8 channel; + u8 byte; + int ret; + + ret = priv->msg.status; + if (ret) { + dev_err(dev, "SPI transfer failed: %d\n", ret); + + spin_lock_irqsave(&priv->cmd_state_lock, flags); + if (priv->cmd_running) { + priv->resp_len = 0; + priv->cmd_state = CMD_STATE_ERROR_RECEIVED; + complete(&priv->cmd_done); + } + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + + if (ret != -EINTR) + olpc_xo175_ec_read_packet(priv); + + return; + } + + channel = priv->rx_buf[0]; + byte = priv->rx_buf[1]; + + switch (channel) { + case CHAN_NONE: + spin_lock_irqsave(&priv->cmd_state_lock, flags); + + if (!priv->cmd_running) { + /* We can safely ignore these */ + dev_err(dev, "spurious FIFO read packet\n"); + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + return; + } + + priv->cmd_state = CMD_STATE_CMD_SENT; + if (!priv->expected_resp_len) + complete(&priv->cmd_done); + olpc_xo175_ec_read_packet(priv); + + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + return; + + case CHAN_SWITCH: + spin_lock_irqsave(&priv->cmd_state_lock, flags); + + if (!priv->cmd_running) { + /* Just go with the flow */ + dev_err(dev, "spurious SWITCH packet\n"); + memset(priv->cmd, 0, sizeof(priv->cmd)); + priv->cmd[0] = CMD_ECHO; + } + + priv->cmd_state = CMD_STATE_CMD_IN_TX_FIFO; + + /* Throw command into TxFIFO */ + gpiod_set_value_cansleep(priv->gpio_cmd, 0); + olpc_xo175_ec_send_command(priv, priv->cmd, sizeof(priv->cmd)); + + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + return; + + case CHAN_CMD_RESP: + spin_lock_irqsave(&priv->cmd_state_lock, flags); + + if (!priv->cmd_running) { + dev_err(dev, "spurious response packet\n"); + } else if (priv->resp_len >= priv->expected_resp_len) { + dev_err(dev, "too many response packets\n"); + } else { + priv->resp[priv->resp_len++] = byte; + + if (priv->resp_len == priv->expected_resp_len) { + priv->cmd_state = CMD_STATE_RESP_RECEIVED; + complete(&priv->cmd_done); + } + } + + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + break; + + case CHAN_CMD_ERROR: + spin_lock_irqsave(&priv->cmd_state_lock, flags); + + if (!priv->cmd_running) { + dev_err(dev, "spurious cmd error packet\n"); + } else { + priv->resp[0] = byte; + priv->resp_len = 1; + priv->cmd_state = CMD_STATE_ERROR_RECEIVED; + complete(&priv->cmd_done); + } + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + break; + + case CHAN_KEYBOARD: + case CHAN_TOUCHPAD: + dev_warn(dev, "kbd/tpad not supported\n"); + break; + + case CHAN_EVENT: + dev_dbg(dev, "got event %.2x\n", byte); + switch (byte) { + case EVENT_AC_CHANGE: + psy = power_supply_get_by_name("olpc-ac"); + if (psy) { + power_supply_changed(psy); + power_supply_put(psy); + } + break; + case EVENT_BATTERY_STATUS: + case EVENT_BATTERY_CRITICAL: + case EVENT_BATTERY_SOC_CHANGE: + case EVENT_BATTERY_ERROR: + psy = power_supply_get_by_name("olpc-battery"); + if (psy) { + power_supply_changed(psy); + power_supply_put(psy); + } + break; + case EVENT_POWER_PRESSED: + input_report_key(priv->pwrbtn, KEY_POWER, 1); + input_sync(priv->pwrbtn); + input_report_key(priv->pwrbtn, KEY_POWER, 0); + input_sync(priv->pwrbtn); + /* fall through */ + case EVENT_POWER_PRESS_WAKE: + case EVENT_TIMED_HOST_WAKE: + pm_wakeup_event(priv->pwrbtn->dev.parent, 1000); + break; + default: + /* For now, we just ignore the unknown events. */ + break; + } + break; + + case CHAN_DEBUG: + if (byte == '\n') { + olpc_xo175_ec_flush_logbuf(priv); + } else if (isprint(byte)) { + priv->logbuf[priv->logbuf_len++] = byte; + if (priv->logbuf_len == LOG_BUF_SIZE) + olpc_xo175_ec_flush_logbuf(priv); + } + break; + + default: + dev_warn(dev, "unknown channel: %d, %.2x\n", channel, byte); + break; + } + + /* Most non-command packets get the TxFIFO refilled and an ACK. */ + olpc_xo175_ec_read_packet(priv); +} + +/* + * This function is protected with a mutex. We can safely assume that + * there will be only one instance of this function running at a time. + * One of the ways in which we enforce this is by waiting until we get + * all response bytes back from the EC, rather than just the number that + * the caller requests (otherwise, we might start a new command while an + * old command's response bytes are still incoming). + */ +static int olpc_xo175_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *resp, + size_t resp_len, void *ec_cb_arg) +{ + struct olpc_xo175_ec *priv = ec_cb_arg; + struct device *dev = &priv->spi->dev; + unsigned long flags; + int nr_bytes; + int ret = 0; + + dev_dbg(dev, "CMD %x, %d bytes expected\n", cmd, resp_len); + + if (inlen > 5) { + dev_err(dev, "command len %d too big!\n", resp_len); + return -EOVERFLOW; + } + + /* Suspending in the middle of an EC command hoses things badly! */ + WARN_ON(priv->suspended); + if (priv->suspended) + return -EBUSY; + + /* Ensure a valid command and return bytes */ + nr_bytes = olpc_xo175_ec_is_valid_cmd(cmd); + if (nr_bytes < 0) { + dev_err_ratelimited(dev, "unknown command 0x%x\n", cmd); + + /* + * Assume the best in our callers, and allow unknown commands + * through. I'm not the charitable type, but it was beaten + * into me. Just maintain a minimum standard of sanity. + */ + if (resp_len > sizeof(priv->resp)) { + dev_err(dev, "response too big: %d!\n", resp_len); + return -EOVERFLOW; + } + nr_bytes = resp_len; + } + if (resp_len > nr_bytes) + resp_len = nr_bytes; + + spin_lock_irqsave(&priv->cmd_state_lock, flags); + + /* Initialize the state machine */ + init_completion(&priv->cmd_done); + priv->cmd_running = true; + priv->cmd_state = CMD_STATE_WAITING_FOR_SWITCH; + memset(priv->cmd, 0, sizeof(priv->cmd)); + priv->cmd[0] = cmd; + priv->cmd[1] = inlen; + priv->cmd[2] = 0; + memcpy(&priv->cmd[3], inbuf, inlen); + priv->expected_resp_len = nr_bytes; + priv->resp_len = 0; + memset(resp, 0, resp_len); + + /* Tickle the cmd gpio to get things started */ + gpiod_set_value_cansleep(priv->gpio_cmd, 1); + + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + + /* The irq handler should do the rest */ + if (!wait_for_completion_timeout(&priv->cmd_done, + msecs_to_jiffies(4000))) { + dev_err(dev, "EC cmd error: timeout in STATE %d\n", + priv->cmd_state); + gpiod_set_value_cansleep(priv->gpio_cmd, 0); + spi_slave_abort(priv->spi); + olpc_xo175_ec_read_packet(priv); + return -ETIMEDOUT; + } + + spin_lock_irqsave(&priv->cmd_state_lock, flags); + + /* Deal with the results. */ + if (priv->cmd_state == CMD_STATE_ERROR_RECEIVED) { + /* EC-provided error is in the single response byte */ + dev_err(dev, "command 0x%x returned error 0x%x\n", + cmd, priv->resp[0]); + ret = -EREMOTEIO; + } else if (priv->resp_len != nr_bytes) { + dev_err(dev, "command 0x%x returned %d bytes, expected %d bytes\n", + cmd, priv->resp_len, nr_bytes); + ret = -ETIMEDOUT; + } else { + /* + * We may have 8 bytes in priv->resp, but we only care about + * what we've been asked for. If the caller asked for only 2 + * bytes, give them that. We've guaranteed that + * resp_len <= priv->resp_len and priv->resp_len == nr_bytes. + */ + memcpy(resp, priv->resp, resp_len); + } + + /* This should already be low, but just in case. */ + gpiod_set_value_cansleep(priv->gpio_cmd, 0); + priv->cmd_running = false; + + spin_unlock_irqrestore(&priv->cmd_state_lock, flags); + + return ret; +} + +static int olpc_xo175_ec_set_event_mask(unsigned int mask) +{ + unsigned char args[2]; + + args[0] = mask & 0xff; + args[1] = (mask >> 8) & 0xff; + return olpc_ec_cmd(CMD_WRITE_EXT_SCI_MASK, args, 2, NULL, 0); +} + +static void olpc_xo175_ec_restart(enum reboot_mode mode, const char *cmd) +{ + while (1) { + olpc_ec_cmd(CMD_POWER_CYCLE, NULL, 0, NULL, 0); + mdelay(1000); + } +} + +static void olpc_xo175_ec_power_off(void) +{ + while (1) { + olpc_ec_cmd(CMD_POWER_OFF, NULL, 0, NULL, 0); + mdelay(1000); + } +} + +#ifdef CONFIG_PM +static int olpc_xo175_ec_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct olpc_xo175_ec *priv = platform_get_drvdata(pdev); + unsigned char hintargs[5]; + static unsigned int suspend_count; + + suspend_count++; + dev_dbg(dev, "%s: suspend sync %08x\n", __func__, suspend_count); + + /* + * First byte is 1 to indicate suspend, the rest is an integer + * counter. + */ + hintargs[0] = 1; + memcpy(&hintargs[1], &suspend_count, 4); + olpc_ec_cmd(CMD_SUSPEND_HINT, hintargs, 5, NULL, 0); + + /* + * After we've sent the suspend hint, don't allow further EC commands + * to be run until we've resumed. Userspace tasks should be frozen, + * but kernel threads and interrupts could still schedule EC commands. + */ + priv->suspended = true; + + return 0; +} + +static int olpc_xo175_ec_resume_noirq(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct olpc_xo175_ec *priv = platform_get_drvdata(pdev); + + priv->suspended = false; + + return 0; +} + +static int olpc_xo175_ec_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct olpc_xo175_ec *priv = platform_get_drvdata(pdev); + unsigned char x = 0; + + priv->suspended = false; + + /* + * The resume hint is only needed if no other commands are + * being sent during resume. all it does is tell the EC + * the SoC is definitely awake. + */ + olpc_ec_cmd(CMD_SUSPEND_HINT, &x, 1, NULL, 0); + + /* Enable all EC events while we're awake */ + olpc_xo175_ec_set_event_mask(0xffff); + + return 0; +} +#endif + +static struct platform_device *olpc_ec; + +static struct olpc_ec_driver olpc_xo175_ec_driver = { + .ec_cmd = olpc_xo175_ec_cmd, +}; + +static int olpc_xo175_ec_remove(struct spi_device *spi) +{ + if (pm_power_off == olpc_xo175_ec_power_off) + pm_power_off = NULL; + if (arm_pm_restart == olpc_xo175_ec_restart) + arm_pm_restart = NULL; + + spi_slave_abort(spi); + + platform_device_unregister(olpc_ec); + olpc_ec = NULL; + + return 0; +} + +static int olpc_xo175_ec_probe(struct spi_device *spi) +{ + struct olpc_xo175_ec *priv; + int ret; + + if (olpc_ec) { + dev_err(&spi->dev, "OLPC EC already registered.\n"); + return -EBUSY; + } + + priv = devm_kzalloc(&spi->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->gpio_cmd = devm_gpiod_get(&spi->dev, "cmd", GPIOD_OUT_LOW); + if (IS_ERR(priv->gpio_cmd)) { + dev_err(&spi->dev, "failed to get cmd gpio: %ld\n", + PTR_ERR(priv->gpio_cmd)); + return PTR_ERR(priv->gpio_cmd); + } + + priv->spi = spi; + + spin_lock_init(&priv->cmd_state_lock); + priv->cmd_state = CMD_STATE_IDLE; + init_completion(&priv->cmd_done); + + priv->logbuf_len = 0; + + /* Set up power button input device */ + priv->pwrbtn = devm_input_allocate_device(&spi->dev); + if (!priv->pwrbtn) + return -ENOMEM; + priv->pwrbtn->name = "Power Button"; + priv->pwrbtn->dev.parent = &spi->dev; + input_set_capability(priv->pwrbtn, EV_KEY, KEY_POWER); + ret = input_register_device(priv->pwrbtn); + if (ret) { + dev_err(&spi->dev, "error registering input device: %d\n", ret); + return ret; + } + + spi_set_drvdata(spi, priv); + + priv->xfer.rx_buf = priv->rx_buf; + priv->xfer.tx_buf = priv->tx_buf; + + olpc_xo175_ec_read_packet(priv); + + olpc_ec_driver_register(&olpc_xo175_ec_driver, priv); + olpc_ec = platform_device_register_resndata(&spi->dev, "olpc-ec", -1, + NULL, 0, NULL, 0); + + /* Enable all EC events while we're awake */ + olpc_xo175_ec_set_event_mask(0xffff); + + if (pm_power_off == NULL) + pm_power_off = olpc_xo175_ec_power_off; + if (arm_pm_restart == NULL) + arm_pm_restart = olpc_xo175_ec_restart; + + dev_info(&spi->dev, "OLPC XO-1.75 Embedded Controller driver\n"); + + return 0; +} + +static const struct dev_pm_ops olpc_xo175_ec_pm_ops = { +#ifdef CONFIG_PM + .suspend = olpc_xo175_ec_suspend, + .resume_noirq = olpc_xo175_ec_resume_noirq, + .resume = olpc_xo175_ec_resume, +#endif +}; + +static const struct of_device_id olpc_xo175_ec_of_match[] = { + { .compatible = "olpc,xo1.75-ec" }, + { }, +}; +MODULE_DEVICE_TABLE(of, olpc_xo175_ec_of_match); + +static struct spi_driver olpc_xo175_ec_spi_driver = { + .driver = { + .name = "olpc-xo175-ec", + .of_match_table = olpc_xo175_ec_of_match, + .pm = &olpc_xo175_ec_pm_ops, + }, + .probe = olpc_xo175_ec_probe, + .remove = olpc_xo175_ec_remove, +}; +module_spi_driver(olpc_xo175_ec_spi_driver); + +MODULE_DESCRIPTION("OLPC XO-1.75 Embedded Controller driver"); +MODULE_AUTHOR("Lennert Buytenhek "); /* Functionality */ +MODULE_AUTHOR("Lubomir Rintel "); /* Bugs */ +MODULE_LICENSE("GPL"); From patchwork Wed Oct 10 17:22:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634985 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 239D315E2 for ; Wed, 10 Oct 2018 17:24:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 121162A0B5 for ; Wed, 10 Oct 2018 17:24:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 058FB2A2A8; Wed, 10 Oct 2018 17:24:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 656BC2A2EB for ; Wed, 10 Oct 2018 17:24:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727449AbeJKAqu (ORCPT ); Wed, 10 Oct 2018 20:46:50 -0400 Received: from shell.v3.sk ([90.176.6.54]:54589 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727164AbeJKAqt (ORCPT ); Wed, 10 Oct 2018 20:46:49 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id C8EECBCFAF; Wed, 10 Oct 2018 19:23:38 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id FHAAkGA8-PN9; Wed, 10 Oct 2018 19:23:21 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 619DEBCFB8; Wed, 10 Oct 2018 19:23:12 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 3AgWpu_dna7n; Wed, 10 Oct 2018 19:23:06 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id DA217BCFBD; Wed, 10 Oct 2018 19:23:05 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 07/15] Platform: OLPC: Avoid a warning if the EC didn't register yet Date: Wed, 10 Oct 2018 19:22:52 +0200 Message-Id: <20181010172300.317643-8-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Just return ENODEV, so that whoever attempted to use the EC call can defer their work. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- drivers/platform/olpc/olpc-ec.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c index 35a21c66cd0d..342f5bb7f7a8 100644 --- a/drivers/platform/olpc/olpc-ec.c +++ b/drivers/platform/olpc/olpc-ec.c @@ -116,8 +116,11 @@ int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen) struct olpc_ec_priv *ec = ec_priv; struct ec_cmd_desc desc; - /* Ensure a driver and ec hook have been registered */ - if (WARN_ON(!ec_driver || !ec_driver->ec_cmd)) + /* Driver not yet registered. */ + if (!ec_driver) + return -ENODEV; + + if (WARN_ON(!ec_driver->ec_cmd)) return -ENODEV; if (!ec) From patchwork Wed Oct 10 17:22:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634967 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E64FD69BA for ; Wed, 10 Oct 2018 17:24:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D7DEF29AC0 for ; Wed, 10 Oct 2018 17:24:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CB80D2A2A8; Wed, 10 Oct 2018 17:24:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 164F82A0B5 for ; Wed, 10 Oct 2018 17:24:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727627AbeJKAq5 (ORCPT ); Wed, 10 Oct 2018 20:46:57 -0400 Received: from shell.v3.sk ([90.176.6.54]:54589 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727489AbeJKAq4 (ORCPT ); Wed, 10 Oct 2018 20:46:56 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id BDD96BCFD8; Wed, 10 Oct 2018 19:23:45 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id rAgXPnYXYps9; Wed, 10 Oct 2018 19:23:20 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 9C15ABCFBF; Wed, 10 Oct 2018 19:23:12 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id n1kkJYL-gvkN; Wed, 10 Oct 2018 19:23:07 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 70A54BCFAD; Wed, 10 Oct 2018 19:23:06 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 08/15] Platform: OLPC: Move EC-specific functionality out from x86 Date: Wed, 10 Oct 2018 19:22:53 +0200 Message-Id: <20181010172300.317643-9-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP It is actually plaform independent. Move it to the olpc-ec driver from the X86 OLPC platform, so that it could be used by the ARM based laptops too. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- arch/x86/include/asm/olpc.h | 17 ----- arch/x86/platform/olpc/olpc.c | 119 +++++--------------------------- drivers/platform/olpc/olpc-ec.c | 103 ++++++++++++++++++++++++++- include/linux/olpc-ec.h | 32 ++++++++- 4 files changed, 149 insertions(+), 122 deletions(-) diff --git a/arch/x86/include/asm/olpc.h b/arch/x86/include/asm/olpc.h index c2bf1de5d901..cf13d1254550 100644 --- a/arch/x86/include/asm/olpc.h +++ b/arch/x86/include/asm/olpc.h @@ -9,12 +9,10 @@ struct olpc_platform_t { int flags; uint32_t boardrev; - int ecver; }; #define OLPC_F_PRESENT 0x01 #define OLPC_F_DCON 0x02 -#define OLPC_F_EC_WIDE_SCI 0x04 #ifdef CONFIG_OLPC @@ -64,13 +62,6 @@ static inline int olpc_board_at_least(uint32_t rev) return olpc_platform_info.boardrev >= rev; } -extern void olpc_ec_wakeup_set(u16 value); -extern void olpc_ec_wakeup_clear(u16 value); -extern bool olpc_ec_wakeup_available(void); - -extern int olpc_ec_mask_write(u16 bits); -extern int olpc_ec_sci_query(u16 *sci_value); - #else static inline int machine_is_olpc(void) @@ -83,14 +74,6 @@ static inline int olpc_has_dcon(void) return 0; } -static inline void olpc_ec_wakeup_set(u16 value) { } -static inline void olpc_ec_wakeup_clear(u16 value) { } - -static inline bool olpc_ec_wakeup_available(void) -{ - return false; -} - #endif #ifdef CONFIG_OLPC_XO1_PM diff --git a/arch/x86/platform/olpc/olpc.c b/arch/x86/platform/olpc/olpc.c index f0e920fb98ad..c6c62b4f251f 100644 --- a/arch/x86/platform/olpc/olpc.c +++ b/arch/x86/platform/olpc/olpc.c @@ -30,9 +30,6 @@ struct olpc_platform_t olpc_platform_info; EXPORT_SYMBOL_GPL(olpc_platform_info); -/* EC event mask to be applied during suspend (defining wakeup sources). */ -static u16 ec_wakeup_mask; - /* what the timeout *should* be (in ms) */ #define EC_BASE_TIMEOUT 20 @@ -186,83 +183,6 @@ static int olpc_xo1_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, return ret; } -void olpc_ec_wakeup_set(u16 value) -{ - ec_wakeup_mask |= value; -} -EXPORT_SYMBOL_GPL(olpc_ec_wakeup_set); - -void olpc_ec_wakeup_clear(u16 value) -{ - ec_wakeup_mask &= ~value; -} -EXPORT_SYMBOL_GPL(olpc_ec_wakeup_clear); - -/* - * Returns true if the compile and runtime configurations allow for EC events - * to wake the system. - */ -bool olpc_ec_wakeup_available(void) -{ - if (!machine_is_olpc()) - return false; - - /* - * XO-1 EC wakeups are available when olpc-xo1-sci driver is - * compiled in - */ -#ifdef CONFIG_OLPC_XO1_SCI - if (olpc_platform_info.boardrev < olpc_board_pre(0xd0)) /* XO-1 */ - return true; -#endif - - /* - * XO-1.5 EC wakeups are available when olpc-xo15-sci driver is - * compiled in - */ -#ifdef CONFIG_OLPC_XO15_SCI - if (olpc_platform_info.boardrev >= olpc_board_pre(0xd0)) /* XO-1.5 */ - return true; -#endif - - return false; -} -EXPORT_SYMBOL_GPL(olpc_ec_wakeup_available); - -int olpc_ec_mask_write(u16 bits) -{ - if (olpc_platform_info.flags & OLPC_F_EC_WIDE_SCI) { - __be16 ec_word = cpu_to_be16(bits); - return olpc_ec_cmd(EC_WRITE_EXT_SCI_MASK, (void *) &ec_word, 2, - NULL, 0); - } else { - unsigned char ec_byte = bits & 0xff; - return olpc_ec_cmd(EC_WRITE_SCI_MASK, &ec_byte, 1, NULL, 0); - } -} -EXPORT_SYMBOL_GPL(olpc_ec_mask_write); - -int olpc_ec_sci_query(u16 *sci_value) -{ - int ret; - - if (olpc_platform_info.flags & OLPC_F_EC_WIDE_SCI) { - __be16 ec_word; - ret = olpc_ec_cmd(EC_EXT_SCI_QUERY, - NULL, 0, (void *) &ec_word, 2); - if (ret == 0) - *sci_value = be16_to_cpu(ec_word); - } else { - unsigned char ec_byte; - ret = olpc_ec_cmd(EC_SCI_QUERY, NULL, 0, &ec_byte, 1); - if (ret == 0) - *sci_value = ec_byte; - } - - return ret; -} -EXPORT_SYMBOL_GPL(olpc_ec_sci_query); - static bool __init check_ofw_architecture(struct device_node *root) { const char *olpc_arch; @@ -296,6 +216,10 @@ static bool __init platform_detect(void) if (success) { olpc_platform_info.boardrev = get_board_revision(root); olpc_platform_info.flags |= OLPC_F_PRESENT; + + pr_info("OLPC board revision %s%X\n", + ((olpc_platform_info.boardrev & 0xf) < 8) ? "pre" : "", + olpc_platform_info.boardrev >> 4); } of_node_put(root); @@ -315,27 +239,8 @@ static int __init add_xo1_platform_devices(void) return PTR_ERR_OR_ZERO(pdev); } -static int olpc_xo1_ec_probe(struct platform_device *pdev) -{ - /* get the EC revision */ - olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, - (unsigned char *) &olpc_platform_info.ecver, 1); - - /* EC version 0x5f adds support for wide SCI mask */ - if (olpc_platform_info.ecver >= 0x5f) - olpc_platform_info.flags |= OLPC_F_EC_WIDE_SCI; - - pr_info("OLPC board revision %s%X (EC=%x)\n", - ((olpc_platform_info.boardrev & 0xf) < 8) ? "pre" : "", - olpc_platform_info.boardrev >> 4, - olpc_platform_info.ecver); - - return 0; -} static int olpc_xo1_ec_suspend(struct platform_device *pdev) { - olpc_ec_mask_write(ec_wakeup_mask); - /* * Squelch SCIs while suspended. This is a fix for * . @@ -359,15 +264,27 @@ static int olpc_xo1_ec_resume(struct platform_device *pdev) } static struct olpc_ec_driver ec_xo1_driver = { - .probe = olpc_xo1_ec_probe, .suspend = olpc_xo1_ec_suspend, .resume = olpc_xo1_ec_resume, .ec_cmd = olpc_xo1_ec_cmd, +#ifdef CONFIG_OLPC_XO1_SCI + /* + * XO-1 EC wakeups are available when olpc-xo1-sci driver is + * compiled in + */ + .wakeup_available = true, +#endif }; static struct olpc_ec_driver ec_xo1_5_driver = { - .probe = olpc_xo1_ec_probe, .ec_cmd = olpc_xo1_ec_cmd, +#ifdef CONFIG_OLPC_XO1_5_SCI + /* + * XO-1.5 EC wakeups are available when olpc-xo15-sci driver is + * compiled in + */ + .wakeup_available = true, +#endif }; static int __init olpc_init(void) diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c index 342f5bb7f7a8..b9d9a9897dd5 100644 --- a/drivers/platform/olpc/olpc-ec.c +++ b/drivers/platform/olpc/olpc-ec.c @@ -30,6 +30,7 @@ struct ec_cmd_desc { struct olpc_ec_priv { struct olpc_ec_driver *drv; + int version; struct work_struct worker; struct mutex cmd_lock; @@ -39,6 +40,12 @@ struct olpc_ec_priv { struct dentry *dbgfs_dir; + /* + * EC event mask to be applied during suspend (defining wakeup + * sources). + */ + u16 ec_wakeup_mask; + /* * Running an EC command while suspending means we don't always finish * the command before the machine suspends. This means that the EC @@ -150,6 +157,91 @@ int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen) } EXPORT_SYMBOL_GPL(olpc_ec_cmd); +void olpc_ec_wakeup_set(u16 value) +{ + struct olpc_ec_priv *ec = ec_priv; + + if (WARN_ON(!ec)) + return; + + ec->ec_wakeup_mask |= value; +} +EXPORT_SYMBOL_GPL(olpc_ec_wakeup_set); + +void olpc_ec_wakeup_clear(u16 value) +{ + struct olpc_ec_priv *ec = ec_priv; + + if (WARN_ON(!ec)) + return; + + ec->ec_wakeup_mask &= ~value; +} +EXPORT_SYMBOL_GPL(olpc_ec_wakeup_clear); + +int olpc_ec_mask_write(u16 bits) +{ + struct olpc_ec_priv *ec = ec_priv; + + if (WARN_ON(!ec)) + return -ENODEV; + + /* EC version 0x5f adds support for wide SCI mask */ + if (ec->version >= 0x5f) { + __be16 ec_word = cpu_to_be16(bits); + + return olpc_ec_cmd(EC_WRITE_EXT_SCI_MASK, (void *) &ec_word, 2, + NULL, 0); + } else { + unsigned char ec_byte = bits & 0xff; + + return olpc_ec_cmd(EC_WRITE_SCI_MASK, &ec_byte, 1, NULL, 0); + } +} +EXPORT_SYMBOL_GPL(olpc_ec_mask_write); + +/* + * Returns true if the compile and runtime configurations allow for EC events + * to wake the system. + */ +bool olpc_ec_wakeup_available(void) +{ + if (WARN_ON(!ec_driver)) + return false; + + return ec_driver->wakeup_available; +} +EXPORT_SYMBOL_GPL(olpc_ec_wakeup_available); + +int olpc_ec_sci_query(u16 *sci_value) +{ + struct olpc_ec_priv *ec = ec_priv; + int ret; + + if (WARN_ON(!ec)) + return -ENODEV; + + /* EC version 0x5f adds support for wide SCI mask */ + if (ec->version >= 0x5f) { + __be16 ec_word; + + ret = olpc_ec_cmd(EC_EXT_SCI_QUERY, + NULL, 0, (void *) &ec_word, 2); + if (ret == 0) + *sci_value = be16_to_cpu(ec_word); + } else { + unsigned char ec_byte; + + ret = olpc_ec_cmd(EC_SCI_QUERY, + NULL, 0, &ec_byte, 1); + if (ret == 0) + *sci_value = ec_byte; + } + + return ret; +} +EXPORT_SYMBOL_GPL(olpc_ec_sci_query); + #ifdef CONFIG_DEBUG_FS /* @@ -277,14 +369,17 @@ static int olpc_ec_probe(struct platform_device *pdev) ec_priv = ec; platform_set_drvdata(pdev, ec); - err = ec_driver->probe ? ec_driver->probe(pdev) : 0; + /* get the EC revision */ + err = olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, + (unsigned char *) &ec->version, 1); if (err) { ec_priv = NULL; kfree(ec); - } else { - ec->dbgfs_dir = olpc_ec_setup_debugfs(); + return err; } + ec->dbgfs_dir = olpc_ec_setup_debugfs(); + return err; } @@ -294,6 +389,8 @@ static int olpc_ec_suspend(struct device *dev) struct olpc_ec_priv *ec = platform_get_drvdata(pdev); int err = 0; + olpc_ec_mask_write(ec->ec_wakeup_mask); + if (ec_driver->suspend) err = ec_driver->suspend(pdev); if (!err) diff --git a/include/linux/olpc-ec.h b/include/linux/olpc-ec.h index 79bdc6328c52..7fa3d27f7fee 100644 --- a/include/linux/olpc-ec.h +++ b/include/linux/olpc-ec.h @@ -16,14 +16,28 @@ #define EC_SCI_QUERY 0x84 #define EC_EXT_SCI_QUERY 0x85 +/* SCI source values */ +#define EC_SCI_SRC_EMPTY 0x00 +#define EC_SCI_SRC_GAME 0x01 +#define EC_SCI_SRC_BATTERY 0x02 +#define EC_SCI_SRC_BATSOC 0x04 +#define EC_SCI_SRC_BATERR 0x08 +#define EC_SCI_SRC_EBOOK 0x10 /* XO-1 only */ +#define EC_SCI_SRC_WLAN 0x20 /* XO-1 only */ +#define EC_SCI_SRC_ACPWR 0x40 +#define EC_SCI_SRC_BATCRIT 0x80 +#define EC_SCI_SRC_GPWAKE 0x100 /* XO-1.5 only */ +#define EC_SCI_SRC_ALL 0x1FF + struct platform_device; struct olpc_ec_driver { - int (*probe)(struct platform_device *); int (*suspend)(struct platform_device *); int (*resume)(struct platform_device *); int (*ec_cmd)(u8, u8 *, size_t, u8 *, size_t, void *); + + bool wakeup_available; }; #ifdef CONFIG_OLPC @@ -33,11 +47,27 @@ extern void olpc_ec_driver_register(struct olpc_ec_driver *drv, void *arg); extern int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen); +extern void olpc_ec_wakeup_set(u16 value); +extern void olpc_ec_wakeup_clear(u16 value); + +extern int olpc_ec_mask_write(u16 bits); +extern int olpc_ec_sci_query(u16 *sci_value); + +extern bool olpc_ec_wakeup_available(void); + #else static inline int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen) { return -ENODEV; } +static inline void olpc_ec_wakeup_set(u16 value) { } +static inline void olpc_ec_wakeup_clear(u16 value) { } + +static inline bool olpc_ec_wakeup_available(void) +{ + return false; +} + #endif /* CONFIG_OLPC */ #endif /* _LINUX_OLPC_EC_H */ From patchwork Wed Oct 10 17:22:54 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634979 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C04A969B1 for ; Wed, 10 Oct 2018 17:24:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A8F1B2A0B5 for ; Wed, 10 Oct 2018 17:24:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9C68C2A2A8; Wed, 10 Oct 2018 17:24:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 432E02A2EB for ; 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Wed, 10 Oct 2018 19:23:07 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 09/15] Platform: OLPC: add a regulator for the DCON Date: Wed, 10 Oct 2018 19:22:54 +0200 Message-Id: <20181010172300.317643-10-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP All OLPC ECs are able to turn the power to the DCON on an off. Use the regulator framework to expose the functionality. Signed-off-by: Lubomir Rintel --- drivers/platform/olpc/Kconfig | 1 + drivers/platform/olpc/olpc-ec.c | 65 +++++++++++++++++++++++++++++++++ 2 files changed, 66 insertions(+) diff --git a/drivers/platform/olpc/Kconfig b/drivers/platform/olpc/Kconfig index 7c643d24ad0f..c5a872fb286f 100644 --- a/drivers/platform/olpc/Kconfig +++ b/drivers/platform/olpc/Kconfig @@ -6,6 +6,7 @@ config OLPC select OF select OF_PROMTREE if X86 select IRQ_DOMAIN + select REGULATOR help Add support for detecting the unique features of the OLPC XO hardware. diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c index b9d9a9897dd5..8f82922631a9 100644 --- a/drivers/platform/olpc/olpc-ec.c +++ b/drivers/platform/olpc/olpc-ec.c @@ -14,6 +14,7 @@ #include #include #include +#include #include struct ec_cmd_desc { @@ -34,6 +35,10 @@ struct olpc_ec_priv { struct work_struct worker; struct mutex cmd_lock; + /* DCON regulator */ + struct regulator_dev *dcon_rdev; + bool dcon_enabled; + /* Pending EC commands */ struct list_head cmd_q; spinlock_t cmd_q_lock; @@ -347,9 +352,60 @@ static struct dentry *olpc_ec_setup_debugfs(void) #endif /* CONFIG_DEBUG_FS */ +static int olpc_ec_set_dcon_power(struct olpc_ec_priv *ec, bool state) +{ + unsigned char ec_byte = state; + int ret; + + if (ec->dcon_enabled == state) + return 0; + + ret = olpc_ec_cmd(EC_DCON_POWER_MODE, &ec_byte, 1, NULL, 0); + if (ret == 0) + ec->dcon_enabled = state; + + return ret; +} + +static int dcon_regulator_enable(struct regulator_dev *rdev) +{ + struct olpc_ec_priv *ec = rdev_get_drvdata(rdev); + + return olpc_ec_set_dcon_power(ec, 1); +} + +static int dcon_regulator_disable(struct regulator_dev *rdev) +{ + struct olpc_ec_priv *ec = rdev_get_drvdata(rdev); + + return olpc_ec_set_dcon_power(ec, 0); +} + +static int dcon_regulator_is_enabled(struct regulator_dev *rdev) +{ + struct olpc_ec_priv *ec = rdev_get_drvdata(rdev); + + return ec->dcon_enabled; +} + +static struct regulator_ops dcon_regulator_ops = { + .enable = dcon_regulator_enable, + .disable = dcon_regulator_disable, + .is_enabled = dcon_regulator_is_enabled, +}; + +static const struct regulator_desc dcon_desc = { + .name = "dcon", + .id = 0, + .ops = &dcon_regulator_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, +}; + static int olpc_ec_probe(struct platform_device *pdev) { struct olpc_ec_priv *ec; + struct regulator_config config = { }; int err; if (!ec_driver) @@ -378,6 +434,15 @@ static int olpc_ec_probe(struct platform_device *pdev) return err; } + config.dev = pdev->dev.parent; + config.driver_data = ec; + ec->dcon_enabled = true; + ec->dcon_rdev = devm_regulator_register(&pdev->dev, &dcon_desc, &config); + if (IS_ERR(ec->dcon_rdev)) { + dev_err(&pdev->dev, "failed to register DCON regulator\n"); + return PTR_ERR(ec->dcon_rdev); + } + ec->dbgfs_dir = olpc_ec_setup_debugfs(); return err; From patchwork Wed Oct 10 17:22:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634983 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4281969B5 for ; Wed, 10 Oct 2018 17:24:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D1C1C2A0B5 for ; Wed, 10 Oct 2018 17:24:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C550E2A2B6; Wed, 10 Oct 2018 17:24:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 73E222A0B5 for ; Wed, 10 Oct 2018 17:24:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727391AbeJKAqq (ORCPT ); Wed, 10 Oct 2018 20:46:46 -0400 Received: from shell.v3.sk ([90.176.6.54]:54567 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726562AbeJKAqq (ORCPT ); Wed, 10 Oct 2018 20:46:46 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 03B4EBCFBC; Wed, 10 Oct 2018 19:23:36 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id wEOEitTMc_03; Wed, 10 Oct 2018 19:23:22 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 49C9EBCFCB; Wed, 10 Oct 2018 19:23:13 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id olmYUNgywQFq; Wed, 10 Oct 2018 19:23:09 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 98034BCFBA; Wed, 10 Oct 2018 19:23:07 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 10/15] dt-bindings: olpc_battery: Add XO-1.5 battery Date: Wed, 10 Oct 2018 19:22:55 +0200 Message-Id: <20181010172300.317643-11-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The XO-1 and XO-1.5 batteries apparently differ in an ability to report ambient temperature. Signed-off-by: Lubomir Rintel Reviewed-by: Rob Herring Acked-by: Pavel Machek --- Documentation/devicetree/bindings/power/supply/olpc_battery.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/power/supply/olpc_battery.txt b/Documentation/devicetree/bindings/power/supply/olpc_battery.txt index c8901b3992d9..8d87d6b35a98 100644 --- a/Documentation/devicetree/bindings/power/supply/olpc_battery.txt +++ b/Documentation/devicetree/bindings/power/supply/olpc_battery.txt @@ -2,4 +2,4 @@ OLPC battery ~~~~~~~~~~~~ Required properties: - - compatible : "olpc,xo1-battery" + - compatible : "olpc,xo1-battery" or "olpc,xo1.5-battery" From patchwork Wed Oct 10 17:22:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634953 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4669C16B1 for ; Wed, 10 Oct 2018 17:24:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3F5A329ABA for ; Wed, 10 Oct 2018 17:24:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 326F62A2B6; Wed, 10 Oct 2018 17:24:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C780829ABA for ; Wed, 10 Oct 2018 17:24:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727714AbeJKArB (ORCPT ); Wed, 10 Oct 2018 20:47:01 -0400 Received: from shell.v3.sk ([90.176.6.54]:54589 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727489AbeJKArA (ORCPT ); Wed, 10 Oct 2018 20:47:00 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id D2927BCFE8; Wed, 10 Oct 2018 19:23:49 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id ce3jWZjeYA_6; Wed, 10 Oct 2018 19:23:26 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 61392BCFC6; Wed, 10 Oct 2018 19:23:15 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id eUHwegwDNKu0; Wed, 10 Oct 2018 19:23:12 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 3C161BCFC2; Wed, 10 Oct 2018 19:23:08 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 11/15] x86, olpc: Use a correct version when making up a battery node Date: Wed, 10 Oct 2018 19:22:56 +0200 Message-Id: <20181010172300.317643-12-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The XO-1 and XO-1.5 batteries apparently differ in an ability to report ambient temperature. Add a different compatible string to the 1.5 battery. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- arch/x86/platform/olpc/olpc_dt.c | 59 +++++++++++++++++++++++--------- 1 file changed, 42 insertions(+), 17 deletions(-) diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c index d6ee92986920..6e54e116b0c5 100644 --- a/arch/x86/platform/olpc/olpc_dt.c +++ b/arch/x86/platform/olpc/olpc_dt.c @@ -218,10 +218,28 @@ static u32 __init olpc_dt_get_board_revision(void) return be32_to_cpu(rev); } -void __init olpc_dt_fixup(void) +int olpc_dt_compatible_match(phandle node, const char *compat) { - int r; char buf[64]; + int plen; + char *p; + int len; + + plen = olpc_dt_getproperty(node, "compatible", buf, sizeof(buf)); + if (plen <= 0) + return 0; + + len = strlen(compat); + for (p = buf; p < buf + plen; p += strlen(p) + 1) { + if (strcmp(p, compat) == 0) + return 1; + } + + return 0; +} + +void __init olpc_dt_fixup(void) +{ phandle node; u32 board_rev; @@ -229,32 +247,33 @@ void __init olpc_dt_fixup(void) if (!node) return; - /* - * If the battery node has a compatible property, we are running a new - * enough firmware and don't have fixups to make. - */ - r = olpc_dt_getproperty(node, "compatible", buf, sizeof(buf)); - if (r > 0) - return; - - pr_info("PROM DT: Old firmware detected, applying fixes\n"); - - /* Add olpc,xo1-battery compatible marker to battery node */ - olpc_dt_interpret("\" /battery@0\" find-device" - " \" olpc,xo1-battery\" +compatible" - " device-end"); - board_rev = olpc_dt_get_board_revision(); if (!board_rev) return; if (board_rev >= olpc_board_pre(0xd0)) { + if (olpc_dt_compatible_match(node, "olpc,xo1.5-battery")) + return; + + /* Add olpc,xo1.5-battery compatible marker to battery node */ + olpc_dt_interpret("\" /battery@0\" find-device" + " \" olpc,xo1.5-battery\" +compatible" + " device-end"); + + /* We're running a very old firmware if this is missing. */ + if (olpc_dt_compatible_match(node, "olpc,xo1-battery")) + return; + /* XO-1.5: add dcon device */ olpc_dt_interpret("\" /pci/display@1\" find-device" " new-device" " \" dcon\" device-name \" olpc,xo1-dcon\" +compatible" " finish-device device-end"); } else { + /* We're running a very old firmware if this is missing. */ + if (olpc_dt_compatible_match(node, "olpc,xo1-battery")) + return; + /* XO-1: add dcon device, mark RTC as olpc,xo1-rtc */ olpc_dt_interpret("\" /pci/display@1,1\" find-device" " new-device" @@ -264,6 +283,11 @@ void __init olpc_dt_fixup(void) " \" olpc,xo1-rtc\" +compatible" " device-end"); } + + /* Add olpc,xo1-battery compatible marker to battery node */ + olpc_dt_interpret("\" /battery@0\" find-device" + " \" olpc,xo1-battery\" +compatible" + " device-end"); } void __init olpc_dt_build_devicetree(void) @@ -289,6 +313,7 @@ void __init olpc_dt_build_devicetree(void) /* A list of DT node/bus matches that we want to expose as platform devices */ static struct of_device_id __initdata of_ids[] = { { .compatible = "olpc,xo1-battery" }, + { .compatible = "olpc,xo1.5-battery" }, { .compatible = "olpc,xo1-dcon" }, { .compatible = "olpc,xo1-rtc" }, {}, From patchwork Wed Oct 10 17:22:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634971 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4402715E2 for ; 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Wed, 10 Oct 2018 20:46:52 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 7B50DBCFB9; Wed, 10 Oct 2018 19:23:42 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id sLHODR34e9fd; Wed, 10 Oct 2018 19:23:26 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id E8E93BCFAA; Wed, 10 Oct 2018 19:23:16 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id eea6XUC9iZTl; Wed, 10 Oct 2018 19:23:13 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id CB6F0BCFC7; Wed, 10 Oct 2018 19:23:08 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 12/15] power: supply: olpc_battery: Use DT to get battery version Date: Wed, 10 Oct 2018 19:22:57 +0200 Message-Id: <20181010172300.317643-13-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Avoid using the x86 OLPC platform specific call to get the board version. It won't work on FDT-based ARM MMP2 platform. Signed-off-by: Lubomir Rintel Reviewed-by: Andy Shevchenko Acked-by: Pavel Machek --- drivers/power/supply/olpc_battery.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c index 5a97e42a3547..540d44bf536f 100644 --- a/drivers/power/supply/olpc_battery.c +++ b/drivers/power/supply/olpc_battery.c @@ -19,6 +19,7 @@ #include #include #include +#include #include @@ -622,11 +623,13 @@ static int olpc_battery_probe(struct platform_device *pdev) olpc_ac = power_supply_register(&pdev->dev, &olpc_ac_desc, NULL); if (IS_ERR(olpc_ac)) return PTR_ERR(olpc_ac); - - if (olpc_board_at_least(olpc_board_pre(0xd0))) { /* XO-1.5 */ + if (of_property_match_string(pdev->dev.of_node, "compatible", + "olpc,xo1.5-battery") >= 0) { + /* XO-1.5 */ olpc_bat_desc.properties = olpc_xo15_bat_props; olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo15_bat_props); - } else { /* XO-1 */ + } else { + /* XO-1 */ olpc_bat_desc.properties = olpc_xo1_bat_props; olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props); } @@ -672,6 +675,7 @@ static int olpc_battery_remove(struct platform_device *pdev) static const struct of_device_id olpc_battery_ids[] = { { .compatible = "olpc,xo1-battery" }, + { .compatible = "olpc,xo1.5-battery" }, {} }; MODULE_DEVICE_TABLE(of, olpc_battery_ids); From patchwork Wed Oct 10 17:22:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634935 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A4F0415E2 for ; Wed, 10 Oct 2018 17:23:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 820A52A0B5 for ; Wed, 10 Oct 2018 17:23:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 76A3F2A17E; Wed, 10 Oct 2018 17:23:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E156629ABA for ; Wed, 10 Oct 2018 17:23:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727769AbeJKArE (ORCPT ); Wed, 10 Oct 2018 20:47:04 -0400 Received: from shell.v3.sk ([90.176.6.54]:54660 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727454AbeJKArC (ORCPT ); Wed, 10 Oct 2018 20:47:02 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id B12BFBCFC6; Wed, 10 Oct 2018 19:23:51 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id u-rh8dHAxd_o; Wed, 10 Oct 2018 19:23:31 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id E8055BCFCD; Wed, 10 Oct 2018 19:23:17 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id yjMEY30s-MSE; Wed, 10 Oct 2018 19:23:14 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 744B2BCFB5; Wed, 10 Oct 2018 19:23:09 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 13/15] power: supply: olpc_battery: Move priv data to a struct Date: Wed, 10 Oct 2018 19:22:58 +0200 Message-Id: <20181010172300.317643-14-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The global variables for private data are not too nice. I'd like some more, and that would clutter the global name space even further. Signed-off-by: Lubomir Rintel Reviewed-by: Andy Shevchenko --- drivers/power/supply/olpc_battery.c | 73 +++++++++++++++-------------- 1 file changed, 38 insertions(+), 35 deletions(-) diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c index 540d44bf536f..2a2d7cc995f0 100644 --- a/drivers/power/supply/olpc_battery.c +++ b/drivers/power/supply/olpc_battery.c @@ -53,6 +53,12 @@ #define BAT_ADDR_MFR_TYPE 0x5F +struct olpc_battery_data { + struct power_supply *olpc_ac; + struct power_supply *olpc_bat; + char bat_serial[17]; +}; + /********************************************************************* * Power *********************************************************************/ @@ -91,11 +97,8 @@ static const struct power_supply_desc olpc_ac_desc = { .get_property = olpc_ac_get_prop, }; -static struct power_supply *olpc_ac; - -static char bat_serial[17]; /* Ick */ - -static int olpc_bat_get_status(union power_supply_propval *val, uint8_t ec_byte) +static int olpc_bat_get_status(struct olpc_battery_data *data, + union power_supply_propval *val, uint8_t ec_byte) { if (olpc_platform_info.ecver > 0x44) { if (ec_byte & (BAT_STAT_CHARGING | BAT_STAT_TRICKLE)) @@ -326,6 +329,7 @@ static int olpc_bat_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { + struct olpc_battery_data *data = power_supply_get_drvdata(psy); int ret = 0; __be16 ec_word; uint8_t ec_byte; @@ -347,7 +351,7 @@ static int olpc_bat_get_property(struct power_supply *psy, switch (psp) { case POWER_SUPPLY_PROP_STATUS: - ret = olpc_bat_get_status(val, ec_byte); + ret = olpc_bat_get_status(data, val, ec_byte); if (ret) return ret; break; @@ -450,8 +454,8 @@ static int olpc_bat_get_property(struct power_supply *psy, if (ret) return ret; - sprintf(bat_serial, "%016llx", (long long)be64_to_cpu(ser_buf)); - val->strval = bat_serial; + sprintf(data->bat_serial, "%016llx", (long long)be64_to_cpu(ser_buf)); + val->strval = data->bat_serial; break; case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: ret = olpc_bat_get_voltage_max_design(val); @@ -579,17 +583,17 @@ static struct power_supply_desc olpc_bat_desc = { .use_for_apm = 1, }; -static struct power_supply *olpc_bat; - static int olpc_battery_suspend(struct platform_device *pdev, pm_message_t state) { - if (device_may_wakeup(&olpc_ac->dev)) + struct olpc_battery_data *data = platform_get_drvdata(pdev); + + if (device_may_wakeup(&data->olpc_ac->dev)) olpc_ec_wakeup_set(EC_SCI_SRC_ACPWR); else olpc_ec_wakeup_clear(EC_SCI_SRC_ACPWR); - if (device_may_wakeup(&olpc_bat->dev)) + if (device_may_wakeup(&data->olpc_bat->dev)) olpc_ec_wakeup_set(EC_SCI_SRC_BATTERY | EC_SCI_SRC_BATSOC | EC_SCI_SRC_BATERR); else @@ -601,7 +605,8 @@ static int olpc_battery_suspend(struct platform_device *pdev, static int olpc_battery_probe(struct platform_device *pdev) { - int ret; + struct power_supply_config psy_cfg = {}; + struct olpc_battery_data *data; uint8_t status; /* @@ -620,9 +625,13 @@ static int olpc_battery_probe(struct platform_device *pdev) /* Ignore the status. It doesn't actually matter */ - olpc_ac = power_supply_register(&pdev->dev, &olpc_ac_desc, NULL); - if (IS_ERR(olpc_ac)) - return PTR_ERR(olpc_ac); + psy_cfg.of_node = pdev->dev.of_node; + psy_cfg.drv_data = data; + + data->olpc_ac = devm_power_supply_register(&pdev->dev, &olpc_ac_desc, &psy_cfg); + if (IS_ERR(data->olpc_ac)) + return PTR_ERR(data->olpc_ac); + if (of_property_match_string(pdev->dev.of_node, "compatible", "olpc,xo1.5-battery") >= 0) { /* XO-1.5 */ @@ -634,42 +643,36 @@ static int olpc_battery_probe(struct platform_device *pdev) olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props); } - olpc_bat = power_supply_register(&pdev->dev, &olpc_bat_desc, NULL); - if (IS_ERR(olpc_bat)) { - ret = PTR_ERR(olpc_bat); - goto battery_failed; - } + data->olpc_bat = devm_power_supply_register(&pdev->dev, &olpc_bat_desc, &psy_cfg); + if (IS_ERR(data->olpc_bat)) + return PTR_ERR(data->olpc_bat); - ret = device_create_bin_file(&olpc_bat->dev, &olpc_bat_eeprom); + ret = device_create_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom); if (ret) - goto eeprom_failed; + return ret; - ret = device_create_file(&olpc_bat->dev, &olpc_bat_error); + ret = device_create_file(&data->olpc_bat->dev, &olpc_bat_error); if (ret) goto error_failed; if (olpc_ec_wakeup_available()) { - device_set_wakeup_capable(&olpc_ac->dev, true); - device_set_wakeup_capable(&olpc_bat->dev, true); + device_set_wakeup_capable(&data->olpc_ac->dev, true); + device_set_wakeup_capable(&data->olpc_bat->dev, true); } return 0; error_failed: - device_remove_bin_file(&olpc_bat->dev, &olpc_bat_eeprom); -eeprom_failed: - power_supply_unregister(olpc_bat); -battery_failed: - power_supply_unregister(olpc_ac); + device_remove_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom); return ret; } static int olpc_battery_remove(struct platform_device *pdev) { - device_remove_file(&olpc_bat->dev, &olpc_bat_error); - device_remove_bin_file(&olpc_bat->dev, &olpc_bat_eeprom); - power_supply_unregister(olpc_bat); - power_supply_unregister(olpc_ac); + struct olpc_battery_data *data = platform_get_drvdata(pdev); + + device_remove_file(&data->olpc_bat->dev, &olpc_bat_error); + device_remove_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom); return 0; } From patchwork Wed Oct 10 17:22:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634957 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 62B6869B7 for ; Wed, 10 Oct 2018 17:24:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0B0252A0B5 for ; Wed, 10 Oct 2018 17:24:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F33552A2B6; Wed, 10 Oct 2018 17:24:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9A9BA2A0B5 for ; Wed, 10 Oct 2018 17:24:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727655AbeJKAq7 (ORCPT ); Wed, 10 Oct 2018 20:46:59 -0400 Received: from shell.v3.sk ([90.176.6.54]:54660 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727454AbeJKAq6 (ORCPT ); Wed, 10 Oct 2018 20:46:58 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 76440BCFDA; Wed, 10 Oct 2018 19:23:47 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id IOoh818SxGmP; Wed, 10 Oct 2018 19:23:28 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 4FF0BBCFBA; Wed, 10 Oct 2018 19:23:17 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 9MfrvOYnCg8T; Wed, 10 Oct 2018 19:23:14 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 091E7BCFAF; Wed, 10 Oct 2018 19:23:10 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 14/15] power: supply: olpc_battery: Avoid using platform_info Date: Wed, 10 Oct 2018 19:22:59 +0200 Message-Id: <20181010172300.317643-15-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This wouldn't work on the DT-based ARM platform. Let's read the EC version directly from the EC driver instead. This makes the driver no longer x86 specific. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- drivers/power/supply/Kconfig | 2 +- drivers/power/supply/olpc_battery.c | 35 +++++++++++++++++++++-------- 2 files changed, 27 insertions(+), 10 deletions(-) diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index ff6dab0bf0dd..f0361e4dd457 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -151,7 +151,7 @@ config BATTERY_PMU config BATTERY_OLPC tristate "One Laptop Per Child battery" - depends on X86_32 && OLPC + depends on OLPC help Say Y to enable support for the battery on the OLPC laptop. diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c index 2a2d7cc995f0..dde9863e5c4a 100644 --- a/drivers/power/supply/olpc_battery.c +++ b/drivers/power/supply/olpc_battery.c @@ -20,8 +20,6 @@ #include #include #include -#include - #define EC_BAT_VOLTAGE 0x10 /* uint16_t, *9.76/32, mV */ #define EC_BAT_CURRENT 0x11 /* int16_t, *15.625/120, mA */ @@ -57,6 +55,7 @@ struct olpc_battery_data { struct power_supply *olpc_ac; struct power_supply *olpc_bat; char bat_serial[17]; + int new_proto; }; /********************************************************************* @@ -100,7 +99,7 @@ static const struct power_supply_desc olpc_ac_desc = { static int olpc_bat_get_status(struct olpc_battery_data *data, union power_supply_propval *val, uint8_t ec_byte) { - if (olpc_platform_info.ecver > 0x44) { + if (data->new_proto) { if (ec_byte & (BAT_STAT_CHARGING | BAT_STAT_TRICKLE)) val->intval = POWER_SUPPLY_STATUS_CHARGING; else if (ec_byte & BAT_STAT_DISCHARGING) @@ -608,14 +607,32 @@ static int olpc_battery_probe(struct platform_device *pdev) struct power_supply_config psy_cfg = {}; struct olpc_battery_data *data; uint8_t status; + unsigned char ecver[1]; + int ret; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + platform_set_drvdata(pdev, data); + + /* See if the EC is already there and get the EC revision */ + ret = olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, ecver, ARRAY_SIZE(ecver)); + if (ret) { + if (ret == -ENODEV) + return -EPROBE_DEFER; + return ret; + } - /* - * We've seen a number of EC protocol changes; this driver requires - * the latest EC protocol, supported by 0x44 and above. - */ - if (olpc_platform_info.ecver < 0x44) { + if (ecver[0] > 0x44) { + /* XO 1 or 1.5 with a new EC firmware. */ + data->new_proto = 1; + } else if (ecver[0] < 0x44) { + /* + * We've seen a number of EC protocol changes; this driver + * requires the latest EC protocol, supported by 0x44 and above. + */ printk(KERN_NOTICE "OLPC EC version 0x%02x too old for " - "battery driver.\n", olpc_platform_info.ecver); + "battery driver.\n", ecver[0]); return -ENXIO; } From patchwork Wed Oct 10 17:23:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10634945 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1491869B6 for ; Wed, 10 Oct 2018 17:24:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3DCBD29ABA for ; Wed, 10 Oct 2018 17:24:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 315D12A17E; Wed, 10 Oct 2018 17:24:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CAF5C29ABA for ; Wed, 10 Oct 2018 17:24:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727808AbeJKArG (ORCPT ); Wed, 10 Oct 2018 20:47:06 -0400 Received: from shell.v3.sk ([90.176.6.54]:54714 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727164AbeJKArF (ORCPT ); Wed, 10 Oct 2018 20:47:05 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id AF300AE23F; Wed, 10 Oct 2018 19:23:54 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id vbNj-pXjtM_Q; Wed, 10 Oct 2018 19:23:35 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id D4420BCFAD; Wed, 10 Oct 2018 19:23:18 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id UKlJIzD9Q5Vy; Wed, 10 Oct 2018 19:23:16 +0200 (CEST) Received: from belphegor.lan (ip-89-102-31-34.net.upcbroadband.cz [89.102.31.34]) by zimbra.v3.sk (Postfix) with ESMTPSA id 90E96BCFBE; Wed, 10 Oct 2018 19:23:10 +0200 (CEST) From: Lubomir Rintel To: Mark Brown , Geert Uytterhoeven , Darren Hart , Andy Shevchenko Cc: Greg Kroah-Hartman , James Cameron , Sebastian Reichel , Rob Herring , Mark Rutland , Eric Miao , Haojian Zhuang , Daniel Mack , Robert Jarzmik , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, Lubomir Rintel Subject: [PATCH 15/15] power: supply: olpc_battery: Add OLPC XO 1.75 support Date: Wed, 10 Oct 2018 19:23:00 +0200 Message-Id: <20181010172300.317643-16-lkundrak@v3.sk> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181010172300.317643-1-lkundrak@v3.sk> References: <20181010172300.317643-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The battery and the protocol are essentially the same as OLPC XO 1.5, but the responses from the EC are LSB first. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- drivers/power/supply/olpc_battery.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c index dde9863e5c4a..2adf33b9f641 100644 --- a/drivers/power/supply/olpc_battery.c +++ b/drivers/power/supply/olpc_battery.c @@ -56,6 +56,7 @@ struct olpc_battery_data { struct power_supply *olpc_bat; char bat_serial[17]; int new_proto; + int little_endian; }; /********************************************************************* @@ -321,6 +322,14 @@ static int olpc_bat_get_voltage_max_design(union power_supply_propval *val) return ret; } +static s16 ecword_to_cpu(struct olpc_battery_data *data, u16 ec_byte) +{ + if (data->little_endian) + return le16_to_cpu(ec_byte); + else + return be16_to_cpu(ec_byte); +} + /********************************************************************* * Battery properties *********************************************************************/ @@ -393,7 +402,7 @@ static int olpc_bat_get_property(struct power_supply *psy, if (ret) return ret; - val->intval = (s16)be16_to_cpu(ec_word) * 9760L / 32; + val->intval = ecword_to_cpu(data, ec_word) * 9760L / 32; break; case POWER_SUPPLY_PROP_CURRENT_AVG: case POWER_SUPPLY_PROP_CURRENT_NOW: @@ -401,7 +410,7 @@ static int olpc_bat_get_property(struct power_supply *psy, if (ret) return ret; - val->intval = (s16)be16_to_cpu(ec_word) * 15625L / 120; + val->intval = ecword_to_cpu(data, ec_word) * 15625L / 120; break; case POWER_SUPPLY_PROP_CAPACITY: ret = olpc_ec_cmd(EC_BAT_SOC, NULL, 0, &ec_byte, 1); @@ -432,21 +441,21 @@ static int olpc_bat_get_property(struct power_supply *psy, if (ret) return ret; - val->intval = (s16)be16_to_cpu(ec_word) * 10 / 256; + val->intval = ecword_to_cpu(data, ec_word) * 10 / 256; break; case POWER_SUPPLY_PROP_TEMP_AMBIENT: ret = olpc_ec_cmd(EC_AMB_TEMP, NULL, 0, (void *)&ec_word, 2); if (ret) return ret; - val->intval = (int)be16_to_cpu(ec_word) * 10 / 256; + val->intval = (int)ecword_to_cpu(data, ec_word) * 10 / 256; break; case POWER_SUPPLY_PROP_CHARGE_COUNTER: ret = olpc_ec_cmd(EC_BAT_ACR, NULL, 0, (void *)&ec_word, 2); if (ret) return ret; - val->intval = (s16)be16_to_cpu(ec_word) * 6250 / 15; + val->intval = ecword_to_cpu(data, ec_word) * 6250 / 15; break; case POWER_SUPPLY_PROP_SERIAL_NUMBER: ret = olpc_ec_cmd(EC_BAT_SERIAL, NULL, 0, (void *)&ser_buf, 8); @@ -626,6 +635,10 @@ static int olpc_battery_probe(struct platform_device *pdev) if (ecver[0] > 0x44) { /* XO 1 or 1.5 with a new EC firmware. */ data->new_proto = 1; + } else if (of_find_compatible_node(NULL, NULL, "olpc,xo1.75-ec")) { + /* XO 1.75 */ + data->new_proto = 1; + data->little_endian = 1; } else if (ecver[0] < 0x44) { /* * We've seen a number of EC protocol changes; this driver