From patchwork Mon Jun 5 14:47:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 689961 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3F91C83003 for ; Mon, 5 Jun 2023 14:48:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234541AbjFEOsU (ORCPT ); Mon, 5 Jun 2023 10:48:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233748AbjFEOsS (ORCPT ); Mon, 5 Jun 2023 10:48:18 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F34B9C; Mon, 5 Jun 2023 07:48:17 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id D27A121B67; Mon, 5 Jun 2023 14:48:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1685976495; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XrIaA11UECgCyVaDDJA6C7jjJWoM1qyXSRf/ZVI8E1o=; b=hw6QJQadbQZOGemm4GteztF6Euar62lrBraO0mQlB7yElafEmfxrBwzOtTqtK96wjDRLdU nZ5MNkQ5b+sr3wCfqVq8xYJEVHjRye/3t1i+FLmUb09/y3sqc9eEMy6gFkDIneVvLbWpae 7sXmxmXX65l5tQmZ9B7spzDwY0NFMAI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1685976495; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XrIaA11UECgCyVaDDJA6C7jjJWoM1qyXSRf/ZVI8E1o=; b=S/j1toaPGx8XCaWcrE0gwpHomcbKM4IMiaPxV00jnzHqyARW+m6pKiRmY9hve+OUvRi/e5 UCbdJPkE3UqNOKCA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 8257713A3C; Mon, 5 Jun 2023 14:48:15 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id AC7lHq/1fWQvXwAAMHmgww (envelope-from ); Mon, 05 Jun 2023 14:48:15 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, javierm@redhat.com, sam@ravnborg.org, deller@gmx.de, geert+renesas@glider.be, lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sh@vger.kernel.org, linux-omap@vger.kernel.org, linux-staging@lists.linux.dev, Thomas Zimmermann , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz Subject: [PATCH 03/30] backlight/lv5207lp: Compare against struct fb_info.device Date: Mon, 5 Jun 2023 16:47:45 +0200 Message-Id: <20230605144812.15241-4-tzimmermann@suse.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230605144812.15241-1-tzimmermann@suse.de> References: <20230605144812.15241-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Struct lv5207lp_platform_data refers to a platform device within the Linux device hierarchy. The test in lv5207lp_backlight_check_fb() compares it against the fbdev device in struct fb_info.dev, which is different. Fix the test by comparing to struct fb_info.device. Fixes a bug in the backlight driver and prepares fbdev for making struct fb_info.dev optional. Signed-off-by: Thomas Zimmermann Cc: Yoshinori Sato Cc: Rich Felker Cc: John Paul Adrian Glaubitz Cc: Lee Jones Cc: Daniel Thompson Cc: Jingoo Han Cc: linux-sh@vger.kernel.org Reviewed-by: Javier Martinez Canillas --- arch/sh/boards/mach-kfr2r09/setup.c | 2 +- drivers/video/backlight/lv5207lp.c | 2 +- include/linux/platform_data/lv5207lp.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c index 20f4db778ed6..a18e80394aed 100644 --- a/arch/sh/boards/mach-kfr2r09/setup.c +++ b/arch/sh/boards/mach-kfr2r09/setup.c @@ -202,7 +202,7 @@ static struct platform_device kfr2r09_sh_lcdc_device = { }; static struct lv5207lp_platform_data kfr2r09_backlight_data = { - .fbdev = &kfr2r09_sh_lcdc_device.dev, + .dev = &kfr2r09_sh_lcdc_device.dev, .def_value = 13, .max_value = 13, }; diff --git a/drivers/video/backlight/lv5207lp.c b/drivers/video/backlight/lv5207lp.c index 00673c8b66ac..739f45cd2d38 100644 --- a/drivers/video/backlight/lv5207lp.c +++ b/drivers/video/backlight/lv5207lp.c @@ -67,7 +67,7 @@ static int lv5207lp_backlight_check_fb(struct backlight_device *backlight, { struct lv5207lp *lv = bl_get_data(backlight); - return lv->pdata->fbdev == NULL || lv->pdata->fbdev == info->dev; + return !lv->pdata->dev || lv->pdata->dev == info->device; } static const struct backlight_ops lv5207lp_backlight_ops = { diff --git a/include/linux/platform_data/lv5207lp.h b/include/linux/platform_data/lv5207lp.h index c9da8d402750..95d85c1394bc 100644 --- a/include/linux/platform_data/lv5207lp.h +++ b/include/linux/platform_data/lv5207lp.h @@ -8,7 +8,7 @@ struct device; struct lv5207lp_platform_data { - struct device *fbdev; + struct device *dev; unsigned int max_value; unsigned int def_value; };