From patchwork Tue Oct 22 08:36:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 11204005 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 160921951 for ; Tue, 22 Oct 2019 08:37:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E8BBE218AE for ; Tue, 22 Oct 2019 08:37:07 +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="R0kpfQV0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731344AbfJVIhH (ORCPT ); Tue, 22 Oct 2019 04:37:07 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:38579 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388407AbfJVIgo (ORCPT ); Tue, 22 Oct 2019 04:36:44 -0400 Received: by mail-wr1-f65.google.com with SMTP id v9so5744358wrq.5 for ; Tue, 22 Oct 2019 01:36:42 -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=kvQLRHJvRjudaJXCpLtV7CQx5y9VARSzzzMBbffwoBQ=; b=R0kpfQV0jZYq2r/gSdB59v/D7Ky/qC7QBaqd8jFL5iqpVaB7HbudHuRs3k/Du5yZrv RtLp9RXnK3Ac6JBmGc61233Jzc3czDf1nZkMp74sB5QkgfhDFSpXYx4SG6FF6KNOAcvK /xnwnzv9ysxeUNTqHWANmB+wu32P67SBprPLFSGNL0FSwskPlqDpo/ZF5YXHYp77tP89 ruPFvimpaR67SUNYOCzZLwoadfWEfB1p5iS/pd3brQsJSi7qoQpOZFfXaEzQTRwn+V6Z JPHXS9Y72JOkuFLWYupTjAv/kuwlsgyMZ9/CdzY8lCwE8KVEsY8bW6MoCWUxYQsh6ztg 9TeA== 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=kvQLRHJvRjudaJXCpLtV7CQx5y9VARSzzzMBbffwoBQ=; b=pPOEPWpaCeRV2H39EUfkQ8B0tlcMFq0b04PIjoi9VJFzZZ7QhDXABXEkS8M4u7ERPF AVw/a0si20nsEiXz8dIklKjJrFvXhfOPOfXKY8Ss+WyfwTajZrzLqQe+2ouhiV5Ug7Z6 D2j+6kOhKZxqRMjutPIlCeXBBBU7DYZNrOXx5rkDI0caRp4oaaiWViWBqk9mhSBnbtZt rGphs2ZIbTCBk+AdnFqxwlbKrQjrJ1qc7OUpfttsoxY2oqZjPgvotlrBRI8dZejXQUsC xMAS7r5ohDYQgApetAFFtyhGaM5oH1u0zJypvyHnVNnzecVZVgNZY3/FV2b1/+0HxEz6 3FHg== X-Gm-Message-State: APjAAAVNg3UAgX7wGdC0boJ9YO8+Q2Mlm4zzD576Gps2rC/vw//zuSYS jHRJZw+oM/bS5vEtvHxgPoECdA== X-Google-Smtp-Source: APXvYqyaselYLV/0dnxVgvDBqTCkwoVW8/nREL08BhLjGuMEQBFszR2zj3NmBAPYQD7CNxTVF2VrFw== X-Received: by 2002:adf:fb0b:: with SMTP id c11mr2450846wrr.50.1571733401978; Tue, 22 Oct 2019 01:36:41 -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 g17sm17115253wrq.58.2019.10.22.01.36.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Oct 2019 01:36:41 -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 v7 5/9] backlight: gpio: simplify the platform data handling Date: Tue, 22 Oct 2019 10:36:26 +0200 Message-Id: <20191022083630.28175-6-brgl@bgdev.pl> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191022083630.28175-1-brgl@bgdev.pl> References: <20191022083630.28175-1-brgl@bgdev.pl> MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@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 52f17c9ca1c3..ddc7d3b288b7 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));