From patchwork Fri Mar 14 20:34:22 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 3835281 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A7062BF540 for ; Fri, 14 Mar 2014 20:34:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 91E4020340 for ; Fri, 14 Mar 2014 20:34:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAD1820304 for ; Fri, 14 Mar 2014 20:34:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753732AbaCNUec (ORCPT ); Fri, 14 Mar 2014 16:34:32 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:50021 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753570AbaCNUec (ORCPT ); Fri, 14 Mar 2014 16:34:32 -0400 Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:a236:9fff:fe00:814]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1WOYoH-0005s2-9i; Fri, 14 Mar 2014 21:34:29 +0100 Received: from ukl by dude.hi.pengutronix.de with local (Exim 4.82) (envelope-from ) id 1WOYoG-0007IZ-I4; Fri, 14 Mar 2014 21:34:28 +0100 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Mark Brown Cc: Wolfram Sang , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2] spi: efm32: properly namespace location property Date: Fri, 14 Mar 2014 21:34:22 +0100 Message-Id: <1394829262-28022-1-git-send-email-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 1.9.0 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:6f8:1178:2:a236:9fff:fe00:814 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-spi@vger.kernel.org Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP While reviewing an i2c driver for efm32 that needs a similar property Wolfram Sang pointed out that "location" is a too generic name for something that is efm32 specific. So add an appropriate namespace and fall back to the generic name in case of failure. Signed-off-by: Uwe Kleine-König Acked-by: Wolfram Sang --- Changes since (implicit) v1, sent with Message-Id: 1394812888-22697-1-git-send-email-u.kleine-koenig@pengutronix.de: - rebase on top of Mark's topic/efm32 branch - adapt dt binding doc accordingly Documentation/devicetree/bindings/spi/efm32-spi.txt | 4 ++-- drivers/spi/spi-efm32.c | 5 ++++- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt index a590ca51be75..25c02ba530da 100644 --- a/Documentation/devicetree/bindings/spi/efm32-spi.txt +++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt @@ -8,7 +8,7 @@ Required properties: - interrupts: pair specifying rx and tx irq - clocks: phandle to the spi clock - cs-gpios: see spi-bus.txt -- location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values. +- efm32,location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values. Example: @@ -20,7 +20,7 @@ spi1: spi@0x4000c400 { /* USART1 */ interrupts = <15 16>; clocks = <&cmu 20>; cs-gpios = <&gpio 51 1>; // D3 - location = <1>; + efm32,location = <1>; status = "ok"; ks8851@0 { diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c index 0512fedf1f13..fdb6fce0530b 100644 --- a/drivers/spi/spi-efm32.c +++ b/drivers/spi/spi-efm32.c @@ -294,7 +294,10 @@ static void efm32_spi_probe_dt(struct platform_device *pdev, u32 location; int ret; - ret = of_property_read_u32(np, "location", &location); + ret = of_property_read_u32(np, "efm32,location", &location); + if (ret) + /* fall back to old and (wrongly) generic property "location" */ + ret = of_property_read_u32(np, "location", &location); if (!ret) { dev_dbg(&pdev->dev, "using location %u\n", location); } else {