From patchwork Thu Feb 1 15:14:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 195508 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:9bc1:b0:106:209c:c626 with SMTP id op1csp95886dyc; Thu, 1 Feb 2024 15:40:11 -0800 (PST) X-Google-Smtp-Source: AGHT+IFyrB2hr9zv6Nh2TZVkUcXI3p+P70ByPedkAE2ODB/Zu2pb+psbk7xDZM1JEaRw3ipDVubM X-Received: by 2002:a05:6830:1e42:b0:6e1:3a8a:2bf5 with SMTP id e2-20020a0568301e4200b006e13a8a2bf5mr5795739otj.25.1706830811546; Thu, 01 Feb 2024 15:40:11 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1706830811; cv=pass; d=google.com; s=arc-20160816; b=u16ySF+jjv7zvMMw1xmUhzkNdxS5AK6xIk9LCrq6WaIkenuXncPKp3SubXVBpE/Dtv yvyX+JMTn89dANyU9wY7/VxnUdp+/8diHb9SGo/+aphSZv9dKGBxkywFnZCZjvi3XO+I v/2Sr2giIZRqp2NeyaDc46PA4fkOqe7IEUQHw7WrFK9qkucqw9X3dTug6zWTwAZqIDxt bA0N6eDAmLFS35lipZqDyEJvZhQ/FttLyMISESlTJLGWQjwCCCbS0AGyh+Ud+ii/7NuN B+dOW5oy5pf5Cr3wt6Q0n6uBI3nx4BsFQniD+bxAdBPWE47KsgYWJ6HxK+nhJr5xPWA5 ajqg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=HwdwT6qLABJgytGDENU20LDp1jf5QxOrzg44m67/vAY=; fh=ZwLOmwpdEgmFc1N9Sk389NF6wXe/6iTCTdJnp2/iZzs=; b=IIwuMIu+VjooNDCurNW7/6cZE+Ln2Ld7d6mfq/rg/zrwIt/nFQg7ztIgBofaeq4jfn a2ajS+AhNlkfskeIbTKbgqU9v/zslF5XUkzqbS2vEI+7M7pu53a3YpVl/eR77yoaufdM QYG8wKitwx4LHXg9Q6R7uYxcHoCydZ1pQfwBhREhzVoXf07gMNnnOD9L7B5yicNwQ3s9 CMO/ND/UCBF4iuf5iJJnqVgh3mj8JrIGakaVaO7k9LhfZFvNE4WNjgWa+RXx0lbfXyiY 9ugSAGIKd1grlSk9UonIp2Kchj/k8hAqxOY8gOZaHAdZinj3SI0JRymuhPnNz1cQBnkH nzbw==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=mkNGhkJu; arc=pass (i=1 dkim=pass dkdomain=intel.com dmarc=pass fromdomain=linux.intel.com); spf=pass (google.com: domain of linux-kernel+bounces-48800-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-48800-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com X-Forwarded-Encrypted: i=1; AJvYcCVo+aHDLrKPOcaB3B1d3slhwpo3gJ+ZjTc/Alefds6ume9d8kN51zfLumYfT8Tu0OnPuqfmU68bJUx24viRlI6FWz/v1A== Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. [2604:1380:45d1:ec00::1]) by mx.google.com with ESMTPS id bp6-20020a05622a1b8600b00429c01f5c42si633539qtb.805.2024.02.01.15.40.11 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Feb 2024 15:40:11 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-48800-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=mkNGhkJu; arc=pass (i=1 dkim=pass dkdomain=intel.com dmarc=pass fromdomain=linux.intel.com); spf=pass (google.com: domain of linux-kernel+bounces-48800-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-48800-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 74D681C258C4 for ; Thu, 1 Feb 2024 20:02:01 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 08BB08563E; Thu, 1 Feb 2024 20:01:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="mkNGhkJu" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 56BBD5F46B; Thu, 1 Feb 2024 20:01:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.55.52.88 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706817708; cv=none; b=Emrso9aUjOdm9iIMfWXbOLU4AAVUxQBKwLvivITRYM+FjLpWspCOSmyb1F/YNJn0xM9LeU6fvY/jZe/oKarxbAWWNx75q0SCsXPyx7XHlu1QwoLvnt/rScRJwqdOoEBvxT79vus3x0KbSl6MxiryIxGmgjPVOz46J9cS0VA2yVo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706817708; c=relaxed/simple; bh=Eogk3XjgcRHFKVfwFBmgrv6XFe+ww9n/tWDnoLocj6o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=V+QYiyE1gKxmeIHVkiee1Y0lqi+N3lTR97S8VTNILgYYpomocPzhhIkDlVq8TVZVb+yR+SteRxMAjyQP2OA8GEGzOlGDEqEs/wChQ7qnSNyg/zLQFyQ9ZFUya4nBbQxIM8lLip0OtuVkQgKrUEp3tOEumFvIeakGtw17/QY0P/s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=mkNGhkJu; arc=none smtp.client-ip=192.55.52.88 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706817706; x=1738353706; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Eogk3XjgcRHFKVfwFBmgrv6XFe+ww9n/tWDnoLocj6o=; b=mkNGhkJuULoZzOZf6Hl9mFTK3ip+At1oZJ9WY9GgXdgH9yyU4v/P3hUR uIwoamh8NmqciZUZ7asJ30Z/PhFSFgj5RIUS8FEbQ1yxoLeUpo3YOXSm5 So5ajUBE0ix8rnVMxB9A/uBEDE/bVb8CFEuxfAqt5XfPBhxPSUvZaCALN ggi7DqIU6Y+ojin3NNXoF+g7sHlKzWKWNczHZnUU+e9gKEEtmuhlvi0OR pb4KQkIjw3Tt6qxvRJmORoxs8tDxInTVnSIckztn9KUiHizqsFCTlujP5 fwT0+JpAPobtoO3Pm1mS/sUs7fBKPzg8NUA7OwV7jJpN43aKXHZekEtfa A==; X-IronPort-AV: E=McAfee;i="6600,9927,10971"; a="435148104" X-IronPort-AV: E=Sophos;i="6.05,236,1701158400"; d="scan'208";a="435148104" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2024 12:01:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10971"; a="1120050426" X-IronPort-AV: E=Sophos;i="6.05,236,1701158400"; d="scan'208";a="1120050426" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga005.fm.intel.com with ESMTP; 01 Feb 2024 12:01:42 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id C5F0CB84; Thu, 1 Feb 2024 17:15:42 +0200 (EET) From: Andy Shevchenko To: Flavio Suligoi , Andy Shevchenko , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller Subject: [PATCH v2 1/3] backlight: mp3309c: Make use of device properties Date: Thu, 1 Feb 2024 17:14:13 +0200 Message-ID: <20240201151537.367218-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20240201151537.367218-1-andriy.shevchenko@linux.intel.com> References: <20240201151537.367218-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789741825084460496 X-GMAIL-MSGID: 1789741825084460496 Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Add mod_devicetable.h include. Tested-by: Flavio Suligoi Signed-off-by: Andy Shevchenko Reviewed-by: Daniel Thompson --- drivers/video/backlight/mp3309c.c | 44 +++++++++++++------------------ 1 file changed, 18 insertions(+), 26 deletions(-) diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c index 34d71259fac1..762bd738c903 100644 --- a/drivers/video/backlight/mp3309c.c +++ b/drivers/video/backlight/mp3309c.c @@ -15,6 +15,8 @@ #include #include #include +#include +#include #include #include @@ -199,18 +201,15 @@ static const struct backlight_ops mp3309c_bl_ops = { .update_status = mp3309c_bl_update_status, }; -static int pm3309c_parse_dt_node(struct mp3309c_chip *chip, - struct mp3309c_platform_data *pdata) +static int mp3309c_parse_fwnode(struct mp3309c_chip *chip, + struct mp3309c_platform_data *pdata) { - struct device_node *node = chip->dev->of_node; - struct property *prop_pwms; - struct property *prop_levels = NULL; - int length = 0; int ret, i; unsigned int num_levels, tmp_value; + struct device *dev = chip->dev; - if (!node) { - dev_err(chip->dev, "failed to get DT node\n"); + if (!dev_fwnode(dev)) { + dev_err(dev, "failed to get firmware node\n"); return -ENODEV; } @@ -224,8 +223,7 @@ static int pm3309c_parse_dt_node(struct mp3309c_chip *chip, * found in the backlight node, the mode switches to PWM mode. */ pdata->dimming_mode = DIMMING_ANALOG_I2C; - prop_pwms = of_find_property(node, "pwms", &length); - if (prop_pwms) { + if (device_property_present(dev, "pwms")) { chip->pwmd = devm_pwm_get(chip->dev, NULL); if (IS_ERR(chip->pwmd)) return dev_err_probe(chip->dev, PTR_ERR(chip->pwmd), @@ -257,11 +255,9 @@ static int pm3309c_parse_dt_node(struct mp3309c_chip *chip, /* * PWM control mode: check for brightness level in DT */ - prop_levels = of_find_property(node, "brightness-levels", - &length); - if (prop_levels) { + if (device_property_present(dev, "brightness-levels")) { /* Read brightness levels from DT */ - num_levels = length / sizeof(u32); + num_levels = device_property_count_u32(dev, "brightness-levels"); if (num_levels < 2) return -EINVAL; } else { @@ -275,10 +271,9 @@ static int pm3309c_parse_dt_node(struct mp3309c_chip *chip, sizeof(*pdata->levels), GFP_KERNEL); if (!pdata->levels) return -ENOMEM; - if (prop_levels) { - ret = of_property_read_u32_array(node, "brightness-levels", - pdata->levels, - num_levels); + if (device_property_present(dev, "brightness-levels")) { + ret = device_property_read_u32_array(dev, "brightness-levels", + pdata->levels, num_levels); if (ret < 0) return ret; } else { @@ -288,8 +283,7 @@ static int pm3309c_parse_dt_node(struct mp3309c_chip *chip, pdata->max_brightness = num_levels - 1; - ret = of_property_read_u32(node, "default-brightness", - &pdata->default_brightness); + ret = device_property_read_u32(dev, "default-brightness", &pdata->default_brightness); if (ret) pdata->default_brightness = pdata->max_brightness; if (pdata->default_brightness > pdata->max_brightness) { @@ -310,8 +304,8 @@ static int pm3309c_parse_dt_node(struct mp3309c_chip *chip, * If missing, the default value for OVP is 35.5V */ pdata->over_voltage_protection = REG_I2C_1_OVP1; - if (!of_property_read_u32(node, "mps,overvoltage-protection-microvolt", - &tmp_value)) { + ret = device_property_read_u32(dev, "mps,overvoltage-protection-microvolt", &tmp_value); + if (!ret) { switch (tmp_value) { case 13500000: pdata->over_voltage_protection = 0x00; @@ -328,9 +322,7 @@ static int pm3309c_parse_dt_node(struct mp3309c_chip *chip, } /* Synchronous (default) and non-synchronous mode */ - pdata->sync_mode = true; - if (of_property_read_bool(node, "mps,no-sync-mode")) - pdata->sync_mode = false; + pdata->sync_mode = !device_property_read_bool(dev, "mps,no-sync-mode"); return 0; } @@ -366,7 +358,7 @@ static int mp3309c_probe(struct i2c_client *client) if (!pdata) return -ENOMEM; - ret = pm3309c_parse_dt_node(chip, pdata); + ret = mp3309c_parse_fwnode(chip, pdata); if (ret) return ret; } From patchwork Thu Feb 1 15:14:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 195411 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2719:b0:106:209c:c626 with SMTP id hl25csp334527dyb; Thu, 1 Feb 2024 09:58:07 -0800 (PST) X-Google-Smtp-Source: AGHT+IEMJL6Cn+xp+Y3LYRmq7mcDCNQEQSErDgRCJyN59YdLIjoB1WdgA2obLhDxOZsH8lPTK6t1 X-Received: by 2002:a05:6e02:12ec:b0:363:9a9a:fca7 with SMTP id l12-20020a056e0212ec00b003639a9afca7mr6669186iln.12.1706810287751; Thu, 01 Feb 2024 09:58:07 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1706810287; cv=pass; d=google.com; s=arc-20160816; b=edDuyqUDeXNWurWfPtyzWlbhkLJY9m7gGS1EGJz1In8fZCcnYg5VnNtic4oEOSGVqu +dhfghPD7odqM5oKxujFfXht4BHx9N225zp0KVPNSv3ReP5e0OB39lqJ7fhVonwj4Pq9 +QydQjzoVPlRhTflakPToP1TPplFd0Q+4OKCwbmwowTuwPYCtT2HTujcwVGBWkKPPTks ECQ1n5HISIVOZiS8dFkdaBfln2SvrNJuY58CvlvOOLUi7MRu/YE5EP4/m9QLhIZF7YjC uHYIOoqztf6bNeiSf8AO3RSjQNae5pVF3Lobzg8bTbOD+gleWRmvlwS/ZcU8tn9mZ0Xi 8sdA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=q5zkk7m03T3OqASXKnwCbMzJ606esU8twxN/PykdNU8=; fh=c23t4uvwB6cgY6Rx17Q1WLdg81/TdqXhVLXaVaqmlW4=; b=qvpSg2ZDeSbmihxa5UNLc33zcXy9WozV5jMMQy771er67+dJ6rqS3NB+FI5K1NkK5h Y3ABaBwKwSkhSLwZNrZHsJSAGmCdSr3ZEhNu8QZpmH7tDNOrkns0sveKjzD10g4zgpXp X7cDoqS7Z8Ss9vUgVbDediKBU2wyC/WhIfdatMWhfJQrDmEsNJqGtkWuAx8gkMCQY3v0 RoMhELjoyzdy/5M/Uu20csLQRFNusNPaCr8z8RY9xKFs0DliHV46fnwG8T41WN8mjUtJ dV8YKHIjS9TAJZCCEy8BdgeAAQJlJON9xyvX49NXvkVlVaDsP2OqbJnsGa48M58vezEs YSrQ==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=nvwjmWx9; arc=pass (i=1 dkim=pass dkdomain=intel.com dmarc=pass fromdomain=linux.intel.com); spf=pass (google.com: domain of linux-kernel+bounces-48390-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-48390-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com X-Forwarded-Encrypted: i=1; AJvYcCXj4TJTiU0pE+vaHP1+pq+sY1v2PVqj/JcKrV9+2es7SrzAjYDXtfiS6c8WUsz6Jtf5/Z2tWRGtnIH3ajQGX1kxMs1BkQ== Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. [2604:1380:45e3:2400::1]) by mx.google.com with ESMTPS id k31-20020a63561f000000b005dbd83521fasi75540pgb.883.2024.02.01.09.58.07 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Feb 2024 09:58:07 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-48390-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=nvwjmWx9; arc=pass (i=1 dkim=pass dkdomain=intel.com dmarc=pass fromdomain=linux.intel.com); spf=pass (google.com: domain of linux-kernel+bounces-48390-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-48390-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 2B26D294F82 for ; Thu, 1 Feb 2024 15:24:32 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1160E15B994; Thu, 1 Feb 2024 15:21:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="nvwjmWx9" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B174A62160; Thu, 1 Feb 2024 15:21:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.55.52.120 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706800911; cv=none; b=RlZEckPWSxwVfxpyE6fcj5LKYZ4DPjwZetbAmoyffp6oCJXuH18hG/JUzV+iO2ZGjbh4n2S6TBE50CObxhYvS7YwUWjustKB8XT5f6fzvsBDwjboQUS7LjYx7N2B/OhyKx+yYcns8U7ow0chH8MUl7tyG8KgFGfZ1SihBSUvbjM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706800911; c=relaxed/simple; bh=WQWD/KmFc0zx5MOPqiRy9ksCicyxu+6xfyIr/wR/bkY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KSI00uikfDdZI8FFIzw/5mlCz9o5SJcIUlkafSocmpkq9utaBAqwopsW32C3Ookf3rLDcs2SpslcopcQ1X3fXaLDtDtBN/Mojxho2nGeN146TGUT8lFwtXW9Xnjm/FjQkB08dDApdstUkIVFxfUgak9PY+33K7yS0NV472rW6GY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=nvwjmWx9; arc=none smtp.client-ip=192.55.52.120 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706800909; x=1738336909; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=WQWD/KmFc0zx5MOPqiRy9ksCicyxu+6xfyIr/wR/bkY=; b=nvwjmWx9PGRKI1zvShK8l1eXlj5P0OPZmO4PZWQRcR2iGOK9yX2W6m8d w0ReZGcaulfKfcDKLcusKfhZ9I1bvme3TZRsYYZJXziOABb/xh0lUC3e+ hR/2rX5GQfoFwn5PxmS019XtEjRe/s+zBNGN2UEbuKYNwtBwDzS5IR807 yrJffSEn36JaI8YiWy4kfZcPvKDNIjBlbPfh4I6Zx4sm54fq8Nm+9gJR8 8A9VhLsd4HqTq07kB63JJj039aAvz9/S1KlRaKuJWXxbdfTlZogr+X96O KRHUgtgG3+0q0MBK+qektJl/3ErF6ZiZDFyJdj0SJtyriez2iH93NG9J8 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10969"; a="402762439" X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="402762439" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2024 07:21:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10969"; a="788953700" X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="788953700" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 01 Feb 2024 07:21:41 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id D646EC07; Thu, 1 Feb 2024 17:15:42 +0200 (EET) From: Andy Shevchenko To: Flavio Suligoi , Andy Shevchenko , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller Subject: [PATCH v2 2/3] backlight: mp3309c: use dev_err_probe() instead of dev_err() Date: Thu, 1 Feb 2024 17:14:14 +0200 Message-ID: <20240201151537.367218-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20240201151537.367218-1-andriy.shevchenko@linux.intel.com> References: <20240201151537.367218-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789720304227361991 X-GMAIL-MSGID: 1789720304227361991 Replace dev_err() with dev_err_probe(). This helps in simplifing code and standardizing the error output. Signed-off-by: Andy Shevchenko Reviewed-by: Daniel Thompson Tested-by: Flavio Suligoi --- drivers/video/backlight/mp3309c.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c index 762bd738c903..2d6bd1a180b3 100644 --- a/drivers/video/backlight/mp3309c.c +++ b/drivers/video/backlight/mp3309c.c @@ -208,10 +208,8 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip, unsigned int num_levels, tmp_value; struct device *dev = chip->dev; - if (!dev_fwnode(dev)) { - dev_err(dev, "failed to get firmware node\n"); - return -ENODEV; - } + if (!dev_fwnode(dev)) + return dev_err_probe(dev, -ENODEV, "failed to get firmware node\n"); /* * Dimming mode: the MP3309C provides two dimming control mode: @@ -287,8 +285,7 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip, if (ret) pdata->default_brightness = pdata->max_brightness; if (pdata->default_brightness > pdata->max_brightness) { - dev_err(chip->dev, - "default brightness exceeds max brightness\n"); + dev_err_probe(dev, -ERANGE, "default brightness exceeds max brightness\n"); pdata->default_brightness = pdata->max_brightness; } @@ -329,16 +326,15 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip, static int mp3309c_probe(struct i2c_client *client) { - struct mp3309c_platform_data *pdata = dev_get_platdata(&client->dev); + struct device *dev = &client->dev; + struct mp3309c_platform_data *pdata = dev_get_platdata(dev); struct mp3309c_chip *chip; struct backlight_properties props; struct pwm_state pwmstate; int ret; - if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { - dev_err(&client->dev, "failed to check i2c functionality\n"); - return -EOPNOTSUPP; - } + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return dev_err_probe(dev, -EOPNOTSUPP, "failed to check i2c functionality\n"); chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); if (!chip) From patchwork Thu Feb 1 15:14:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 195457 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:9bc1:b0:106:209c:c626 with SMTP id op1csp16882dyc; Thu, 1 Feb 2024 12:55:37 -0800 (PST) X-Google-Smtp-Source: AGHT+IEzB14jfupnAsqpWeztmJm4OCUWFK/nl4Ao8ZXA5wZSk7Vx0f56+uOBjPShcrGAlsUK+FRF X-Received: by 2002:a05:6a20:6313:b0:19e:2dd2:1f56 with SMTP id h19-20020a056a20631300b0019e2dd21f56mr187282pzf.10.1706820937072; Thu, 01 Feb 2024 12:55:37 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1706820937; cv=pass; d=google.com; s=arc-20160816; b=xYIAJZkKJEBYrB4s0UMOmG5BKETKgm/jzpLNrpLXraPilp5lk6WUgtRr8wSqUMZFDP 0MUe3pNCuvNuh72+arA0Mvxc69t+J+jgBQuazz2lcEzJ3teAQMLFwDEbQSh5TrVeIc4x G7McYIF+Whdf1gasg+GS32V9VH70AP1HsMEGuIF4o0ghfKl34Bo0QHB/I7H1gc09vTNj Jr9DfcQs28mw4wS0Ceo8bCkVybajr+NXNPX3ItKtLns7RIWdK6kEZxyKY9cAsIrHKDTL DbB6l7PXsP2N2raxv3d3C8JTHlmDq5DpBelfYq7yJV+EMoWtChVPkUah+Wtx0h4+cS6N VRbA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=bpg20pLDsuN97+ZZV0X8oCtrsaiEnXOUQhmx6fcSYyk=; fh=dZ743UOnjWEfPc9D3ke+qYXRQfnP2kFJypyIQS7EFJs=; b=Ijz7qyL7Ekz6lEXxwHXldNq+uRXsD19jiVWwXMg5MJgNq9VF7oe0lEVjnfXjUauYoe acG8tDT1kKNTb0KxBqtPfcta1U2l6ccI4ETqAaGHOU/hVVVHgW7BwNIJwSyHgkvbx6g3 gCiuZ6gKgjYb8hYT29t4BuxJqNnFQqIgRC09tTwKPpL4ffHmYpgVzwzpkVO2SVgjrHMQ 5oFkMB17lUFiBPCim9jam9Xz++O6CRQ+anTGo0g6G5x3gvyUbb8P/VsXhP9Y80yeSRgt mbSMaCsrJplZ3TlHOYTSYo4+0P1LD0ajUCSDhONldvZNDMceIi8+Y0g124vW5ze6+cpr z2hw==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=a6zOFB0Y; arc=pass (i=1 dkim=pass dkdomain=intel.com dmarc=pass fromdomain=linux.intel.com); spf=pass (google.com: domain of linux-kernel+bounces-48537-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-48537-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com X-Forwarded-Encrypted: i=1; AJvYcCVwUPkFUTxqnGMtFKj3zBEfpg4yIS2atCgkz27yNI9Tgj3BLWUGQ3C2SgxzUDN1No99umq74In9jkUDQF2GXYSTBJB2gg== Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org. [2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id r4-20020a63d904000000b005d81bb64355si304645pgg.892.2024.02.01.12.55.36 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Feb 2024 12:55:37 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-48537-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=a6zOFB0Y; arc=pass (i=1 dkim=pass dkdomain=intel.com dmarc=pass fromdomain=linux.intel.com); spf=pass (google.com: domain of linux-kernel+bounces-48537-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-48537-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 04A3DB30D3C for ; Thu, 1 Feb 2024 16:34:15 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2222F566F; Thu, 1 Feb 2024 16:33:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="a6zOFB0Y" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 184364C6C; Thu, 1 Feb 2024 16:33:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=134.134.136.31 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706805235; cv=none; b=lbnAhJSXsSq9PwPEH1xdi5cMoRq7olYqYW/V9VrFyzcLJvfPDfOvzx2O1YIZ7evEheE/rAMuxx9G8vq31KDb16m5srrKWY21tRp5BDNQMvMiTmiasFdAavbjoWMlkOgB+M9tg9itv8TAeoz6eN0An6kK8lwS1Y9Ww7RwmceuN6M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706805235; c=relaxed/simple; bh=Y4tGleDCKLWtxFwW/vft+m/ukBpChbYl89eQXzMV72U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FnjqWufN4tUas0/aivIHPHuR+uy5acHsIxeWJimZk+Fx2XAKrVyAJihKd7c2l97pMTyK4sHm/x7daJodbYmjtzNzSJhXOpsGBv5CoXLKbNnmgHKbMGmZe7aqZcsP14+j/cb4iYNravYS63l7iKHA5ypDUah4BX8Wrg/AEpdtynI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=a6zOFB0Y; arc=none smtp.client-ip=134.134.136.31 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706805233; x=1738341233; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Y4tGleDCKLWtxFwW/vft+m/ukBpChbYl89eQXzMV72U=; b=a6zOFB0YS7Xb50kcscGV0/RRu/D6+hjzoZtuEsRPxizC0n/QrHTbHNsv HBFGnwnbHN3p2p8yuTH0t3hMoygjN92CPqu8KXqXxcETdVGo/Io+BkFph wqPzLfjV6NANyF7qhgPEhAk+yZWpPycHSX230pMZApcvliWe/5j0NPO3D 3+r8zWksdCiNaLVbAPHmmnMnxAgGtN7QFCFBIG4KKawyJLCHAq1n4QT1z nQIpMknsG/FEbOSEcGokczCpcafs0+sQbxNLJBLnIIcUKkU/zHh0Jb4Rg Op+3/pJKqH+vi2zFMu0kMoiSaLYZOMQ43uw6Pp9q9EbK6u3cHG6BKluT9 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10969"; a="468167634" X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="468167634" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2024 08:31:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10969"; a="908292478" X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="908292478" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga002.fm.intel.com with ESMTP; 01 Feb 2024 08:31:41 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id DEA06C41; Thu, 1 Feb 2024 17:15:42 +0200 (EET) From: Andy Shevchenko To: Flavio Suligoi , Andy Shevchenko , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller Subject: [PATCH v2 3/3] backlight: mp3309c: Utilise temporary variable for struct device Date: Thu, 1 Feb 2024 17:14:15 +0200 Message-ID: <20240201151537.367218-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20240201151537.367218-1-andriy.shevchenko@linux.intel.com> References: <20240201151537.367218-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789731470609067464 X-GMAIL-MSGID: 1789731470609067464 We have a temporary variable to keep pointer to struct device. Utilise it where it makes sense. Reviewed-by: Daniel Thompson Tested-by: Flavio Suligoi Signed-off-by: Andy Shevchenko --- drivers/video/backlight/mp3309c.c | 30 ++++++++++++------------------ 1 file changed, 12 insertions(+), 18 deletions(-) diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c index 2d6bd1a180b3..e7abefd175a4 100644 --- a/drivers/video/backlight/mp3309c.c +++ b/drivers/video/backlight/mp3309c.c @@ -222,10 +222,9 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip, */ pdata->dimming_mode = DIMMING_ANALOG_I2C; if (device_property_present(dev, "pwms")) { - chip->pwmd = devm_pwm_get(chip->dev, NULL); + chip->pwmd = devm_pwm_get(dev, NULL); if (IS_ERR(chip->pwmd)) - return dev_err_probe(chip->dev, PTR_ERR(chip->pwmd), - "error getting pwm data\n"); + return dev_err_probe(dev, PTR_ERR(chip->pwmd), "error getting pwm data\n"); pdata->dimming_mode = DIMMING_PWM; pwm_apply_args(chip->pwmd); } @@ -243,11 +242,9 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip, num_levels = ANALOG_I2C_NUM_LEVELS; /* Enable GPIO used in I2C dimming mode only */ - chip->enable_gpio = devm_gpiod_get(chip->dev, "enable", - GPIOD_OUT_HIGH); + chip->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); if (IS_ERR(chip->enable_gpio)) - return dev_err_probe(chip->dev, - PTR_ERR(chip->enable_gpio), + return dev_err_probe(dev, PTR_ERR(chip->enable_gpio), "error getting enable gpio\n"); } else { /* @@ -265,8 +262,7 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip, } /* Fill brightness levels array */ - pdata->levels = devm_kcalloc(chip->dev, num_levels, - sizeof(*pdata->levels), GFP_KERNEL); + pdata->levels = devm_kcalloc(dev, num_levels, sizeof(*pdata->levels), GFP_KERNEL); if (!pdata->levels) return -ENOMEM; if (device_property_present(dev, "brightness-levels")) { @@ -336,21 +332,21 @@ static int mp3309c_probe(struct i2c_client *client) if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) return dev_err_probe(dev, -EOPNOTSUPP, "failed to check i2c functionality\n"); - chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); + chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL); if (!chip) return -ENOMEM; - chip->dev = &client->dev; + chip->dev = dev; chip->regmap = devm_regmap_init_i2c(client, &mp3309c_regmap); if (IS_ERR(chip->regmap)) - return dev_err_probe(&client->dev, PTR_ERR(chip->regmap), + return dev_err_probe(dev, PTR_ERR(chip->regmap), "failed to allocate register map\n"); i2c_set_clientdata(client, chip); if (!pdata) { - pdata = devm_kzalloc(chip->dev, sizeof(*pdata), GFP_KERNEL); + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; @@ -367,11 +363,10 @@ static int mp3309c_probe(struct i2c_client *client) props.type = BACKLIGHT_RAW; props.power = FB_BLANK_UNBLANK; props.fb_blank = FB_BLANK_UNBLANK; - chip->bl = devm_backlight_device_register(chip->dev, "mp3309c", - chip->dev, chip, + chip->bl = devm_backlight_device_register(dev, "mp3309c", dev, chip, &mp3309c_bl_ops, &props); if (IS_ERR(chip->bl)) - return dev_err_probe(chip->dev, PTR_ERR(chip->bl), + return dev_err_probe(dev, PTR_ERR(chip->bl), "error registering backlight device\n"); /* In PWM dimming mode, enable pwm device */ @@ -383,8 +378,7 @@ static int mp3309c_probe(struct i2c_client *client) pwmstate.enabled = true; ret = pwm_apply_state(chip->pwmd, &pwmstate); if (ret) - return dev_err_probe(chip->dev, ret, - "error setting pwm device\n"); + return dev_err_probe(dev, ret, "error setting pwm device\n"); } chip->pdata->status = FIRST_POWER_ON;