From patchwork Thu Aug 27 19:47:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 11741739 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 11D7D1575 for ; Thu, 27 Aug 2020 19:48:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7F2322BEA for ; Thu, 27 Aug 2020 19:48:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598557691; bh=S7+ytNvy4Ms5HI/eVO4FDsU8aXgDwpeOVIrlQEqYQZI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GjkpXs0SfBa4uKFkM2ReKwE0aLCVXyLid8UOxlWqcmuto6RRIsWPvgcUR9Up0+mr9 ZB+OizkLX6FC6/lp+YcJLEXwXSimZRBfbxyaVNp3kktTVmuIxqaDkHfR1406bEQ+ku GeYN2coy7F1kcpfZq8b7ForEYLfSNtX8z7/iTl8Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726236AbgH0TsK (ORCPT ); Thu, 27 Aug 2020 15:48:10 -0400 Received: from mail.kernel.org ([198.145.29.99]:42020 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726147AbgH0TsJ (ORCPT ); Thu, 27 Aug 2020 15:48:09 -0400 Received: from localhost.localdomain (unknown [194.230.155.216]) (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 2FD1A207DF; Thu, 27 Aug 2020 19:48:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598557688; bh=S7+ytNvy4Ms5HI/eVO4FDsU8aXgDwpeOVIrlQEqYQZI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hxfcnR1bLSaTFTPs0qXEnwKXtAxe0Som9YeDELU9IFUddMrykmithPUghN7+mCpgm EWy8/WYWGiYxCB0bNS1UIP2Pp/xi3DMhXawyn+74GswLeSyCPBKEDZm9+7whwUpbJ2 N9mfe01B6lf5jKtp7DPgah+V787G3cIyxoDhED5A= From: Krzysztof Kozlowski To: Linus Walleij , Bartosz Golaszewski , Dmitry Torokhov , Hans de Goede , Bastien Nocera , Sangwon Jee , Eugen Hristev , Andy Shevchenko , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, platform-driver-x86@vger.kernel.org, clang-built-linux@googlegroups.com Cc: Krzysztof Kozlowski Subject: [PATCH v3.1] Input: bu21013_ts - Use local 'client->dev' variable in probe() Date: Thu, 27 Aug 2020 21:47:45 +0200 Message-Id: <20200827194745.10721-1-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200827185829.30096-27-krzk@kernel.org> References: <20200827185829.30096-27-krzk@kernel.org> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org 'dev' is shorter and simpler than '&client->dev' and in few cases it allows to skip line wrapping. Probe function uses '&client->dev' a lot, so this improves readability slightly. Suggested-by: Andy Shevchenko Signed-off-by: Krzysztof Kozlowski Reviewed-by: Andy Shevchenko --- Changes since v3: 1. Correct suggested-by tag, 2. Add Reviewed-by tag. Changes since v2: 1. New patch --- drivers/input/touchscreen/bu21013_ts.c | 61 ++++++++++++-------------- 1 file changed, 28 insertions(+), 33 deletions(-) diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c index 86bd38243d6c..f09204091ba5 100644 --- a/drivers/input/touchscreen/bu21013_ts.c +++ b/drivers/input/touchscreen/bu21013_ts.c @@ -411,31 +411,32 @@ static int bu21013_probe(struct i2c_client *client, struct input_dev *in_dev; struct input_absinfo *info; u32 max_x = 0, max_y = 0; + struct device *dev = &client->dev; int error; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { - dev_err(&client->dev, "i2c smbus byte data not supported\n"); + dev_err(dev, "i2c smbus byte data not supported\n"); return -EIO; } if (!client->irq) { - dev_err(&client->dev, "No IRQ set up\n"); + dev_err(dev, "No IRQ set up\n"); return -EINVAL; } - ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL); + ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL); if (!ts) return -ENOMEM; ts->client = client; - ts->x_flip = device_property_read_bool(&client->dev, "rohm,flip-x"); - ts->y_flip = device_property_read_bool(&client->dev, "rohm,flip-y"); + ts->x_flip = device_property_read_bool(dev, "rohm,flip-x"); + ts->y_flip = device_property_read_bool(dev, "rohm,flip-y"); - in_dev = devm_input_allocate_device(&client->dev); + in_dev = devm_input_allocate_device(dev); if (!in_dev) { - dev_err(&client->dev, "device memory alloc failed\n"); + dev_err(dev, "device memory alloc failed\n"); return -ENOMEM; } ts->in_dev = in_dev; @@ -445,8 +446,8 @@ static int bu21013_probe(struct i2c_client *client, in_dev->name = DRIVER_TP; in_dev->id.bustype = BUS_I2C; - device_property_read_u32(&client->dev, "rohm,touch-max-x", &max_x); - device_property_read_u32(&client->dev, "rohm,touch-max-y", &max_y); + device_property_read_u32(dev, "rohm,touch-max-x", &max_x); + device_property_read_u32(dev, "rohm,touch-max-y", &max_y); input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0, max_x, 0, 0); input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0, max_y, 0, 0); @@ -455,14 +456,14 @@ static int bu21013_probe(struct i2c_client *client, /* Adjust for the legacy "flip" properties, if present */ if (!ts->props.invert_x && - device_property_read_bool(&client->dev, "rohm,flip-x")) { + device_property_read_bool(dev, "rohm,flip-x")) { info = &in_dev->absinfo[ABS_MT_POSITION_X]; info->maximum -= info->minimum; info->minimum = 0; } if (!ts->props.invert_y && - device_property_read_bool(&client->dev, "rohm,flip-y")) { + device_property_read_bool(dev, "rohm,flip-y")) { info = &in_dev->absinfo[ABS_MT_POSITION_Y]; info->maximum -= info->minimum; info->minimum = 0; @@ -472,50 +473,46 @@ static int bu21013_probe(struct i2c_client *client, INPUT_MT_DIRECT | INPUT_MT_TRACK | INPUT_MT_DROP_UNUSED); if (error) { - dev_err(&client->dev, "failed to initialize MT slots"); + dev_err(dev, "failed to initialize MT slots"); return error; } - ts->regulator = devm_regulator_get(&client->dev, "avdd"); + ts->regulator = devm_regulator_get(dev, "avdd"); if (IS_ERR(ts->regulator)) { - dev_err(&client->dev, "regulator_get failed\n"); + dev_err(dev, "regulator_get failed\n"); return PTR_ERR(ts->regulator); } error = regulator_enable(ts->regulator); if (error) { - dev_err(&client->dev, "regulator enable failed\n"); + dev_err(dev, "regulator enable failed\n"); return error; } - error = devm_add_action_or_reset(&client->dev, bu21013_power_off, ts); + error = devm_add_action_or_reset(dev, bu21013_power_off, ts); if (error) { - dev_err(&client->dev, "failed to install power off handler\n"); + dev_err(dev, "failed to install power off handler\n"); return error; } /* Named "CS" on the chip, DT binding is "reset" */ - ts->cs_gpiod = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_HIGH); + ts->cs_gpiod = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(ts->cs_gpiod)) - return dev_err_probe(&client->dev, PTR_ERR(ts->cs_gpiod), - "failed to get CS GPIO\n"); + return dev_err_probe(dev, PTR_ERR(ts->cs_gpiod), "failed to get CS GPIO\n"); gpiod_set_consumer_name(ts->cs_gpiod, "BU21013 CS"); - error = devm_add_action_or_reset(&client->dev, - bu21013_disable_chip, ts); + error = devm_add_action_or_reset(dev, bu21013_disable_chip, ts); if (error) { - dev_err(&client->dev, - "failed to install chip disable handler\n"); + dev_err(dev, "failed to install chip disable handler\n"); return error; } /* Named "INT" on the chip, DT binding is "touch" */ - ts->int_gpiod = devm_gpiod_get_optional(&client->dev, - "touch", GPIOD_IN); + ts->int_gpiod = devm_gpiod_get_optional(dev, "touch", GPIOD_IN); error = PTR_ERR_OR_ZERO(ts->int_gpiod); if (error) - return dev_err_probe(&client->dev, error, "failed to get INT GPIO\n"); + return dev_err_probe(dev, error, "failed to get INT GPIO\n"); if (ts->int_gpiod) gpiod_set_consumer_name(ts->int_gpiod, "BU21013 INT"); @@ -523,22 +520,20 @@ static int bu21013_probe(struct i2c_client *client, /* configure the touch panel controller */ error = bu21013_init_chip(ts); if (error) { - dev_err(&client->dev, "error in bu21013 config\n"); + dev_err(dev, "error in bu21013 config\n"); return error; } - error = devm_request_threaded_irq(&client->dev, client->irq, - NULL, bu21013_gpio_irq, + error = devm_request_threaded_irq(dev, client->irq, NULL, bu21013_gpio_irq, IRQF_ONESHOT, DRIVER_TP, ts); if (error) { - dev_err(&client->dev, "request irq %d failed\n", - client->irq); + dev_err(dev, "request irq %d failed\n", client->irq); return error; } error = input_register_device(in_dev); if (error) { - dev_err(&client->dev, "failed to register input device\n"); + dev_err(dev, "failed to register input device\n"); return error; }