From patchwork Tue Oct 1 12:58:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 11170521 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 3AD551709 for ; Wed, 2 Oct 2019 07:19:18 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 232C0222C6 for ; Wed, 2 Oct 2019 07:19:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 232C0222C6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9BB2E6E8E5; Wed, 2 Oct 2019 07:18:45 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by gabe.freedesktop.org (Postfix) with ESMTPS id 323F06E788 for ; Tue, 1 Oct 2019 12:59:30 +0000 (UTC) Received: by mail-wm1-x344.google.com with SMTP id y21so3153049wmi.0 for ; Tue, 01 Oct 2019 05:59:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nGttCXCUTufQ00gCZ8QmnQ1I5lZpZkhALPcK59Skk0o=; b=hxU+r1apNKOdpXw8TCme0lIRvwkbmvo1enGbjMZBGcevRmr6tMMplWT1WvmKJxW+tu ANcRXWjhHZeEOAbZrZ4mJD5Ut738LoatKhC8x5Csk2FO/Ju0OVcTYRs3bafJNf1L3JD9 00EOE5F5s0wUfc51MqDk7beyZ3HUTCgzABd6LTFGhEmUjZzsuDvrJGl/NRNe0T6VeshC xXBJP74SYk9n0X8k5f3ftgBbJ54n3UNWW7U7o2NrZ3ZSTMcgT0KgE5sUqXgee86eSxOL AG0XW2xHx4CXeJ84a0k4momgZ0MGmmzcx76O3aR2OsLmlPyPtckvtoBPLFVjSlewkXUN HdoQ== X-Gm-Message-State: APjAAAWN1rrCkdXQI2mHaJptpfkAIfsE5yd7jmoLkYz7HZDr8R2eZCj2 nw9jytWmTuMwSdK5l8/+7ymN3w== X-Google-Smtp-Source: APXvYqxR+llEJjcoi/dh5DVxC10vO0JHcmRwgdjQ8CYrRqFv39W4KCq2x6vDAxkeNNTIhgb4BNbykg== X-Received: by 2002:a7b:caa9:: with SMTP id r9mr3846704wml.14.1569934768770; Tue, 01 Oct 2019 05:59:28 -0700 (PDT) Received: from localhost.localdomain (amontpellier-652-1-281-69.w109-210.abo.wanadoo.fr. [109.210.96.69]) by smtp.gmail.com with ESMTPSA id 3sm3561400wmo.22.2019.10.01.05.59.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2019 05:59:28 -0700 (PDT) From: Bartosz Golaszewski To: Yoshinori Sato , Rich Felker , Lee Jones , Daniel Thompson , Jingoo Han , Bartlomiej Zolnierkiewicz , Linus Walleij , Andy Shevchenko , Jacopo Mondi Subject: [PATCH v4 3/7] backlight: gpio: simplify the platform data handling Date: Tue, 1 Oct 2019 14:58:33 +0200 Message-Id: <20191001125837.4472-4-brgl@bgdev.pl> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191001125837.4472-1-brgl@bgdev.pl> References: <20191001125837.4472-1-brgl@bgdev.pl> MIME-Version: 1.0 X-Mailman-Approved-At: Wed, 02 Oct 2019 07:18:31 +0000 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=nGttCXCUTufQ00gCZ8QmnQ1I5lZpZkhALPcK59Skk0o=; b=CR4mylBDvabRsnJyFLvfQuwlbTsLZHGhqJDX0HPm0mhoLZVxQ42o7FtsNXVg2Pmsgx RirqoDxIhL4tDPxtnaxCQkKxSMqhBVk3NvyuL8OAJr3xo4NE7wYRKAzDzTceS3TF0TtA PWxgYaKrs+Y9dqNAx1N5AyWCtRYMT6ZjdCV76BJDjKGH3zLgLK11oi1IZtSHNb+ma8Js 52GxsUdgcHz7xxMTbwUgS5GYHBIIVBe6a9iYERBh/cs1ESl55nYD354w2399AkGbggAg fPcfm7bjCeSQVb4WFALBXk7TPK9jKgEaPc3lQw4dw6UwMtPfiTY3p9EZ2G9OSXUjTKyc WYKA== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bartosz Golaszewski , linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sh@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Bartosz Golaszewski Now that the last user of platform data (sh ecovec24) defines a proper GPIO lookup and sets the 'default-on' device property, we can drop the platform_data-specific GPIO handling and unify a big chunk of code. The only field used from the platform data is now the fbdev pointer. Signed-off-by: Bartosz Golaszewski Reviewed-by: Linus Walleij Reviewed-by: Daniel Thompson Reviewed-by: Andy Shevchenko --- drivers/video/backlight/gpio_backlight.c | 62 +++++------------------- 1 file changed, 11 insertions(+), 51 deletions(-) diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c index 7e1990199fae..20c5311c7ed2 100644 --- a/drivers/video/backlight/gpio_backlight.c +++ b/drivers/video/backlight/gpio_backlight.c @@ -6,7 +6,6 @@ #include #include #include -#include /* Only for legacy support */ #include #include #include @@ -54,28 +53,6 @@ static const struct backlight_ops gpio_backlight_ops = { .check_fb = gpio_backlight_check_fb, }; -static int gpio_backlight_probe_dt(struct platform_device *pdev, - struct gpio_backlight *gbl) -{ - struct device *dev = &pdev->dev; - int ret; - - gbl->def_value = device_property_read_bool(dev, "default-on"); - - gbl->gpiod = devm_gpiod_get(dev, NULL, GPIOD_ASIS); - if (IS_ERR(gbl->gpiod)) { - ret = PTR_ERR(gbl->gpiod); - - if (ret != -EPROBE_DEFER) { - dev_err(dev, - "Error: The gpios parameter is missing or invalid.\n"); - } - return ret; - } - - return 0; -} - static int gpio_backlight_initial_power_state(struct gpio_backlight *gbl) { struct device_node *node = gbl->dev->of_node; @@ -107,35 +84,18 @@ static int gpio_backlight_probe(struct platform_device *pdev) gbl->dev = &pdev->dev; - if (pdev->dev.fwnode) { - ret = gpio_backlight_probe_dt(pdev, gbl); - if (ret) - return ret; - } else if (pdata) { - /* - * Legacy platform data GPIO retrieveal. Do not expand - * the use of this code path, currently only used by one - * SH board. - */ - unsigned long flags = GPIOF_DIR_OUT; - + if (pdata) gbl->fbdev = pdata->fbdev; - gbl->def_value = pdata->def_value; - flags |= gbl->def_value ? GPIOF_INIT_HIGH : GPIOF_INIT_LOW; - - ret = devm_gpio_request_one(gbl->dev, pdata->gpio, flags, - pdata ? pdata->name : "backlight"); - if (ret < 0) { - dev_err(&pdev->dev, "unable to request GPIO\n"); - return ret; - } - gbl->gpiod = gpio_to_desc(pdata->gpio); - if (!gbl->gpiod) - return -EINVAL; - } else { - dev_err(&pdev->dev, - "failed to find platform data or device tree node.\n"); - return -ENODEV; + + gbl->def_value = device_property_read_bool(&pdev->dev, "default-on"); + + gbl->gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_ASIS); + if (IS_ERR(gbl->gpiod)) { + ret = PTR_ERR(gbl->gpiod); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "Error: The gpios parameter is missing or invalid.\n"); + return ret; } memset(&props, 0, sizeof(props));