From patchwork Sat Oct 19 08:35:52 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 11200005 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 245121599 for ; Sat, 19 Oct 2019 08:36:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 021EF20872 for ; Sat, 19 Oct 2019 08:36:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="qeOCviH9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728507AbfJSIgr (ORCPT ); Sat, 19 Oct 2019 04:36:47 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:41006 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728275AbfJSIgS (ORCPT ); Sat, 19 Oct 2019 04:36:18 -0400 Received: by mail-wr1-f68.google.com with SMTP id p4so8532866wrm.8 for ; Sat, 19 Oct 2019 01:36:17 -0700 (PDT) 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=ksGbh2X5I7ivactCI4jvvNOH5FLCJouedGn4qvIRcNU=; b=qeOCviH9003fSdmW3/WDVHuU60mlmScEI6hXW5V2tWsOYH2Z4L87RI3RE1zmNsjFpz HU/WC9cjHVDL0FKV3NBNOJIKPKlaNzplvhQ0GWgwxpCJkm2beIaNXRkvTzCIPiO5dOhI qP1saqHI/GypMHBl7SCYCSGsxJD3CTqvrHoRgxMpibdKCppYCOa2+xrnocMVE+7bRgHZ b4NvHCz0m/hig86Pi2rwAIiHwPjXrj7PdZQLDxWmXA8QZihX0I5T92Gla+rWCWCScrpC WfjxCm5QKFuvKG62W/GiP41uYibEfNhmWh/7WQrePCdGYVmbtl5/1+HmURyjDw+EHdKK obtQ== 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=ksGbh2X5I7ivactCI4jvvNOH5FLCJouedGn4qvIRcNU=; b=pnaSkMsaxzpDrQ4BYXw1aQfWG35bbKUy7ohS/gyYtz9noWF69P5RLuZEJjvTTbO1oX GIC6OMPfUNXYiS6+h8li4QRujfkFHs+6VZvCM24xiJOjoAqRNmfRWx+Nf9aw5v3x2nuF wLW0OLZMQ6Fgr1uANXiUDT3KE60RNOmw5rrQZZYL5qkjiUZ2S8nHyIZrcKTT+2qzZp1X 0XGakw/4U6bJUpH+ZX+1QnKbfzcvtkvJyGgOVAzKq7vVBd/0mhm56WcMgaK6msyXHYJu 2//gAFHIccS2VRlDLIp9/guRbpET31aR+Lnnh6Kv0gnkojDOQZss+xZd90U9RWyqNM6D jAmQ== X-Gm-Message-State: APjAAAXbNOKmRpTZnrmvFpasmrUZFeiuVxatzlxSwdoEH9+/hYHuGzLV AYPda1aQ6/MVGy1xFi71z49Qdg== X-Google-Smtp-Source: APXvYqzhnMfMaC2te5kIWP+ytu4oY/8aZLqHAo+n+DgYWHtp3A8jMe6Heme4rvVnO3syXrWNgDgWzQ== X-Received: by 2002:a5d:6b81:: with SMTP id n1mr441610wrx.254.1571474176300; Sat, 19 Oct 2019 01:36:16 -0700 (PDT) Received: from debian-brgl.home ([2a01:cb1d:af:5b00:6d6c:8493:1ab5:dad7]) by smtp.gmail.com with ESMTPSA id u1sm7242627wmc.38.2019.10.19.01.36.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Oct 2019 01:36:15 -0700 (PDT) From: Bartosz Golaszewski To: Yoshinori Sato , Rich Felker , Lee Jones , Daniel Thompson , Jingoo Han , Bartlomiej Zolnierkiewicz , Linus Walleij , Andy Shevchenko , Jacopo Mondi Cc: linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 5/9] backlight: gpio: simplify the platform data handling Date: Sat, 19 Oct 2019 10:35:52 +0200 Message-Id: <20191019083556.19466-6-brgl@bgdev.pl> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191019083556.19466-1-brgl@bgdev.pl> References: <20191019083556.19466-1-brgl@bgdev.pl> MIME-Version: 1.0 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org 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 a36ac3a45b81..c829b82f5372 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 @@ -61,28 +60,6 @@ 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; @@ -114,35 +91,18 @@ 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));