From patchwork Thu Oct 29 16:42:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 310964 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2613C2D0A3 for ; Thu, 29 Oct 2020 16:42:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E4D320825 for ; Thu, 29 Oct 2020 16:42:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603989775; bh=rufIZfzUwOusZfJ1S3FbaAtyMqLXFNBtqVRmnNQKp9A=; h=From:To:Cc:Subject:Date:List-ID:From; b=WGpjtZKDib9Lzzff/dtuv53dGWw/L04nM28pLS0Hl1voi/2erycvI8xVn/OtyHc8F LqlLlRGa3emV3/qwS2Pxpb1NkEGZpoloQDYQM+lqE7P/qVmEHjq6Cnts2AcpH2z/AH nZ21yAfEALY7lS3f1fIvpoOZiQadQcvYQazvwxWs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725892AbgJ2Qmw (ORCPT ); Thu, 29 Oct 2020 12:42:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:51242 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725811AbgJ2Qmw (ORCPT ); Thu, 29 Oct 2020 12:42:52 -0400 Received: from localhost.localdomain (adsl-84-226-167-205.adslplus.ch [84.226.167.205]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4DDC7206F4; Thu, 29 Oct 2020 16:42:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603989771; bh=rufIZfzUwOusZfJ1S3FbaAtyMqLXFNBtqVRmnNQKp9A=; h=From:To:Cc:Subject:Date:From; b=kIpUB8eIpOBHJ3mcZyOKOz9gfjlmEbM7nNA0P7TO76BruUFneh5kRmB55KrisMZha p/6XZa2/8dIf51hsJbyZnd/VdMtE5xwKWdSVj5JeRdhkUbi180AT+27R/IgIEh5hY9 zLRoQLiEP7u3oUNEJUhJNsO19gBeiAzip6QZbx/s= From: Krzysztof Kozlowski To: Pavel Machek , Sakari Ailus , Mauro Carvalho Chehab , Lars-Peter Clausen , Tianshu Qiu , Dongchun Zhu , Shawn Tu , Ricardo Ribalda , Dave Stevenson , Manivannan Sadhasivam , Bingbu Cao , Rui Miguel Silva , Shunqian Zheng , Chiranjeevi Rapolu , Hyungwoo Yang , Wenyou Yang , Hans Verkuil , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski Subject: [RESEND PATCH 01/25] media: i2c: imx214: simplify getting state container Date: Thu, 29 Oct 2020 17:42:15 +0100 Message-Id: <20201029164239.84240-1-krzk@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. White at it, use 'dev' directly instead of 'imx214->dev'. Signed-off-by: Krzysztof Kozlowski --- drivers/media/i2c/imx214.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c index 1ef5af9a8c8b..dc27c3678f18 100644 --- a/drivers/media/i2c/imx214.c +++ b/drivers/media/i2c/imx214.c @@ -431,14 +431,13 @@ static inline struct imx214 *to_imx214(struct v4l2_subdev *sd) static int __maybe_unused imx214_power_on(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx214 *imx214 = to_imx214(sd); int ret; ret = regulator_bulk_enable(IMX214_NUM_SUPPLIES, imx214->supplies); if (ret < 0) { - dev_err(imx214->dev, "failed to enable regulators: %d\n", ret); + dev_err(dev, "failed to enable regulators: %d\n", ret); return ret; } @@ -447,7 +446,7 @@ static int __maybe_unused imx214_power_on(struct device *dev) ret = clk_prepare_enable(imx214->xclk); if (ret < 0) { regulator_bulk_disable(IMX214_NUM_SUPPLIES, imx214->supplies); - dev_err(imx214->dev, "clk prepare enable failed\n"); + dev_err(dev, "clk prepare enable failed\n"); return ret; } @@ -459,8 +458,7 @@ static int __maybe_unused imx214_power_on(struct device *dev) static int __maybe_unused imx214_power_off(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx214 *imx214 = to_imx214(sd); gpiod_set_value_cansleep(imx214->enable_gpio, 0); @@ -910,8 +908,7 @@ static int imx214_parse_fwnode(struct device *dev) static int __maybe_unused imx214_suspend(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx214 *imx214 = to_imx214(sd); if (imx214->streaming) @@ -922,8 +919,7 @@ static int __maybe_unused imx214_suspend(struct device *dev) static int __maybe_unused imx214_resume(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx214 *imx214 = to_imx214(sd); int ret;