From patchwork Thu Nov 9 21:06:15 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Machek X-Patchwork-Id: 10051975 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AD448601EA for ; Thu, 9 Nov 2017 21:34:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9F5102B11F for ; Thu, 9 Nov 2017 21:34:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 93FB12B127; Thu, 9 Nov 2017 21:34:29 +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=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 06B172B11F for ; Thu, 9 Nov 2017 21:34:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: MIME-Version:Message-ID:Subject:To:From:Date:Reply-To:Cc: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=XUnRUrWYv6wPdjYT74lP3Jy1Dl6KezvM/GDOODWuqnE=; b=NIw FZcNGNpf37jB2T3pI57GJmMCDI5AKrCZ6XFYrzoUnNAc7OaDxLww5CawqBDPw3CJjKpJ0HlyVlBNa 2tGqCZlvoKJuu6TldxtMQJNEbVJ5qEgG6kvANASm3Bzu1agKNPru2khl0QlOsTKdfn2RxEijvZh0v /9bbk12k7lWClLS188A/DkBajQlfla2oRJO7hRoh/6TK6r469VrNebKx4dRdvU0baxHzVUwgKQKNQ BnH5mVOLY6ZCU5TUjIcxQrgznbeldhDc9t2EeaJUZlE1MQGIVM9adt48mLQiN6AzD/eWrb7f/EfF3 wTQRQxQO/hJ5iHeNnl3/LZRuTioEP9w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1eCuSy-0000I2-B8; Thu, 09 Nov 2017 21:34:28 +0000 Received: from merlin.infradead.org ([2001:8b0:10b:1231::1]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1eCuSw-0000EJ-8x for linux-arm-kernel@bombadil.infradead.org; Thu, 09 Nov 2017 21:34:26 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Type:MIME-Version:Message-ID: Subject:To:From:Date:Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=6MA0K8bjcgsZvJjkk7tcf7GsBpjbKS3hxXMWuuj4gEE=; b=kzZQ3sPUOayNUGWbYdYUt0QajZ j74+WVOrxvUjV1GrW/eY4yb5ssjFtMNMNCkbngVaVWxP8Dv1MU+50zfYiuqML/P1grXCsb8C+aXJ4 6GZafWCwMM5JvXndNpSDfspZAHfh8c7X+0D3QgpTMKy1gpqLsxqJxAVMXEoz0SJKGmSGhDhxs5cvn 2VyXN6GtTc49a6BV32k75OGzrj62lCbZrawNbCkBynG34AD55Sz7LPM9D1irI2O+tXxRc+juh2o/+ Y2Gk/753EsIWejymfgMxQlISXeXxmvoXvUsnjFCFjtj67fJSFnvDy92bCh3ztSB6mNd3P5WbQCLch ZnP8cItw==; Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]) by merlin.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1eCu27-0000Dm-G8 for linux-arm-kernel@lists.infradead.org; Thu, 09 Nov 2017 21:06:45 +0000 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id D00478193E; Thu, 9 Nov 2017 22:06:15 +0100 (CET) Date: Thu, 9 Nov 2017 22:06:15 +0100 From: Pavel Machek To: pali.rohar@gmail.com, sre@kernel.org, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com, clayton@craftyguy.net, martijn@brixit.nl, sakari.ailus@linux.intel.com, afd@ti.com, kernel@networkimprov.net, devicetree@vger.kernel.org, robh+dt@kernel.org Subject: [PATCH] Add support for bq27521 battery monitor Message-ID: <20171109210615.GA27638@amd> MIME-Version: 1.0 User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This adds basic support for BQ27521 battery monitor, used in Nokia N9 and N950. In particular, battery voltage is important to be able to tell when the battery is almost empty. Emptying battery on N950 is pretty painful, as flasher needs to be used to recover phone in such case. Signed-off-by: Pavel Machek Acked-by: Rob Herring diff --git a/Documentation/devicetree/bindings/power/supply/bq27xxx.txt b/Documentation/devicetree/bindings/power/supply/bq27xxx.txt index 6858e1a..615c1cb 100644 --- a/Documentation/devicetree/bindings/power/supply/bq27xxx.txt +++ b/Documentation/devicetree/bindings/power/supply/bq27xxx.txt @@ -15,6 +15,7 @@ Required properties: * "ti,bq27520g2" - BQ27520-g2 * "ti,bq27520g3" - BQ27520-g3 * "ti,bq27520g4" - BQ27520-g4 + * "ti,bq27521" - BQ27521 * "ti,bq27530" - BQ27530 * "ti,bq27531" - BQ27531 * "ti,bq27541" - BQ27541 diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c index ed44439..ee2851a 100644 --- a/drivers/power/supply/bq27xxx_battery.c +++ b/drivers/power/supply/bq27xxx_battery.c @@ -381,6 +381,30 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = { [BQ27XXX_REG_AP] = INVALID_REG_ADDR, BQ27XXX_DM_REG_ROWS, }, + [BQ27521] = { /* FIXME */ + [BQ27XXX_REG_CTRL] = 0x02, + [BQ27XXX_REG_TEMP] = 0x0a, + [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, + [BQ27XXX_REG_VOLT] = 0x0c, + [BQ27XXX_REG_AI] = 0x0e, + [BQ27XXX_REG_FLAGS] = 0x08, + [BQ27XXX_REG_TTE] = INVALID_REG_ADDR, + [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, + [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, + [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, + [BQ27XXX_REG_NAC] = INVALID_REG_ADDR, + [BQ27XXX_REG_FCC] = INVALID_REG_ADDR, + [BQ27XXX_REG_CYCT] = INVALID_REG_ADDR, + [BQ27XXX_REG_AE] = INVALID_REG_ADDR, + [BQ27XXX_REG_SOC] = INVALID_REG_ADDR, + [BQ27XXX_REG_DCAP] = INVALID_REG_ADDR, + [BQ27XXX_REG_AP] = INVALID_REG_ADDR, + [BQ27XXX_DM_CTRL] = INVALID_REG_ADDR, + [BQ27XXX_DM_CLASS] = INVALID_REG_ADDR, + [BQ27XXX_DM_BLOCK] = INVALID_REG_ADDR, + [BQ27XXX_DM_DATA] = INVALID_REG_ADDR, + [BQ27XXX_DM_CKSUM] = INVALID_REG_ADDR, + }, [BQ27530] = { [BQ27XXX_REG_CTRL] = 0x00, [BQ27XXX_REG_TEMP] = 0x06, @@ -700,6 +724,15 @@ static enum power_supply_property bq27520g4_battery_props[] = { POWER_SUPPLY_PROP_MANUFACTURER, }; +static enum power_supply_property bq27521_battery_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_TECHNOLOGY, +}; + static enum power_supply_property bq27530_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_PRESENT, @@ -792,6 +825,7 @@ static struct { BQ27XXX_PROP(BQ27520G2, bq27520g2_battery_props), BQ27XXX_PROP(BQ27520G3, bq27520g3_battery_props), BQ27XXX_PROP(BQ27520G4, bq27520g4_battery_props), + BQ27XXX_PROP(BQ27521, bq27521_battery_props), BQ27XXX_PROP(BQ27530, bq27530_battery_props), BQ27XXX_PROP(BQ27541, bq27541_battery_props), BQ27XXX_PROP(BQ27545, bq27545_battery_props), @@ -1529,6 +1563,7 @@ static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags) case BQ27520G2: case BQ27520G3: case BQ27520G4: + case BQ27521: case BQ27541: case BQ27545: return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD); diff --git a/drivers/power/supply/bq27xxx_battery_i2c.c b/drivers/power/supply/bq27xxx_battery_i2c.c index a597221..fd9b989 100644 --- a/drivers/power/supply/bq27xxx_battery_i2c.c +++ b/drivers/power/supply/bq27xxx_battery_i2c.c @@ -239,6 +239,7 @@ static const struct i2c_device_id bq27xxx_i2c_id_table[] = { { "bq27520g2", BQ27520G2 }, { "bq27520g3", BQ27520G3 }, { "bq27520g4", BQ27520G4 }, + { "bq27521", BQ27521 }, { "bq27530", BQ27530 }, { "bq27531", BQ27530 }, { "bq27541", BQ27541 }, @@ -269,6 +270,7 @@ static const struct of_device_id bq27xxx_battery_i2c_of_match_table[] = { { .compatible = "ti,bq27520g2" }, { .compatible = "ti,bq27520g3" }, { .compatible = "ti,bq27520g4" }, + { .compatible = "ti,bq27521" }, { .compatible = "ti,bq27530" }, { .compatible = "ti,bq27531" }, { .compatible = "ti,bq27541" }, diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h index 11e1168..1e80931 100644 --- a/include/linux/power/bq27xxx_battery.h +++ b/include/linux/power/bq27xxx_battery.h @@ -14,6 +14,7 @@ enum bq27xxx_chip { BQ27520G2, /* bq27520G2 */ BQ27520G3, /* bq27520G3 */ BQ27520G4, /* bq27520G4 */ + BQ27521, /* bq27521 */ BQ27530, /* bq27530, bq27531 */ BQ27541, /* bq27541, bq27542, bq27546, bq27742 */ BQ27545, /* bq27545 */