From patchwork Wed Feb 21 09:41:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 774705 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 539F93D96E; Wed, 21 Feb 2024 09:43:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708508612; cv=none; b=codoSCyzOykQxLIvgWHVfVGrvYNLXCRe2aG0l48gQ1CDG0lV3q0qzkn/M++AVxOjMjir5IXi7+xi3YshrO/UAWZS1XofoqEOFsZl6qmrjLIS2sQXL2+xf32prc2jC3nh3pvcvfNss37CWYo4SXhNK1m11PO6HITh8QyYbeD7bQM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708508612; c=relaxed/simple; bh=Jug75c2ke4yjzX3Y3UZqQDE+plNzb33btNc9dp7f5Jc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Qb+d130txs+sbQP8/OGdvt+dKxtWI3Oo8RBunw/qrKZ1hri1Tta5nZy3z3l/XFV2n7p3B/3p56Rl0sUXgkJlNEF/zCxAG5WsiNe9aSwomPk0QDFLQyLaaHz2gBfw2sSpICtIayI+MZIWNDTROsF9yv5kOWIkgc7Z1aPtG1Llx1E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=we6kFgkA; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=B9nLsGvD; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=VW3d1jGj; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=fRYzmhj7; arc=none smtp.client-ip=195.135.223.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="we6kFgkA"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="B9nLsGvD"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="VW3d1jGj"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="fRYzmhj7" Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [10.150.64.98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 749031FB50; Wed, 21 Feb 2024 09:43:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1708508609; 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=cavlvMvX53yvycI8hdkIGQzWjA/A2JtxVQIXxU8e+nY=; b=we6kFgkA2wxdqpQf90Oskg507cXRFMSCY39eDu+Q8F9CpyY/lCTOcIzDD4SrXH5FzMprU7 noTJepXGRldAaqW5IuvggvO1VZdztoMVxXWvETkmNWo98yjlL89jPJgILhok3CSeFrk34h xK7XZgjahBGB1EzhVQEIFyTRnLucRdY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1708508609; 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=cavlvMvX53yvycI8hdkIGQzWjA/A2JtxVQIXxU8e+nY=; b=B9nLsGvDLXZ6HVJTI0TyF6xncf2YmdZtpDa3XH2RZ9Z1/cP+aVh68ApKoGdK68u8lsXwoQ KV92M7YSwbwYVmDg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1708508607; 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=cavlvMvX53yvycI8hdkIGQzWjA/A2JtxVQIXxU8e+nY=; b=VW3d1jGjiUVrZrLMHnykCiYqZ3qOuCuOuXlAqFytxFk0wVKTadAuVq/Hd1FZruKQpUSOP4 KQxC2rjQ5uKTaIpTCd0MY9w3AfmtziVqHFNvDLs3XrQOfnei0CpKwqEiepZs0+UjMKiKUO 1j6+RTwFieyAOGfkt+XGVKetM3VqRG0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1708508607; 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=cavlvMvX53yvycI8hdkIGQzWjA/A2JtxVQIXxU8e+nY=; b=fRYzmhj7n+FqPdBocNVvlKsGZXrb5H3liZk569qyQkuG1cInPowDdrNYb66RNmkVQqVLNo loB+7s3sYTDWOMBA== Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id 1655F13A42; Wed, 21 Feb 2024 09:43:27 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id ECD+A7/F1WUpCwAAn2gu4w (envelope-from ); Wed, 21 Feb 2024 09:43:27 +0000 From: Thomas Zimmermann To: lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com, deller@gmx.de, andy@kernel.org, robin@protonic.nl, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-input@vger.kernel.org, linux-pwm@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 01/10] backlight: Match backlight device against struct fb_info.bl_dev Date: Wed, 21 Feb 2024 10:41:28 +0100 Message-ID: <20240221094324.27436-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240221094324.27436-1-tzimmermann@suse.de> References: <20240221094324.27436-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Authentication-Results: smtp-out2.suse.de; none X-Spam-Level: X-Spam-Score: -0.31 X-Spamd-Result: default: False [-0.31 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_MISSING_CHARSET(2.50)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com,gmx.de]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; REPLY(-4.00)[]; BROKEN_CONTENT_TYPE(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_RATELIMIT(0.00)[to_ip_from(RLbrmj4aennmrpd7btm9n9zy3k)]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; RCPT_COUNT_TWELVE(0.00)[12]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[linaro.org:email,suse.de:email]; FREEMAIL_TO(0.00)[kernel.org,linaro.org,gmail.com,gmx.de,protonic.nl,redhat.com]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-0.01)[50.25%] X-Spam-Flag: NO Framebuffer drivers for devices with dedicated backlight are supposed to set struct fb_info.bl_dev to the backlight's respective device. Use the value to match backlight and framebuffer in the backlight core code. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Thompson Reviewed-by: Javier Martinez Canillas --- drivers/video/backlight/backlight.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 86e1cdc8e3697..48844a4f28ad3 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -98,7 +98,8 @@ static int fb_notifier_callback(struct notifier_block *self, { struct backlight_device *bd; struct fb_event *evdata = data; - int node = evdata->info->node; + struct fb_info *info = evdata->info; + int node = info->node; int fb_blank = 0; /* If we aren't interested in this event, skip it immediately ... */ @@ -110,8 +111,12 @@ static int fb_notifier_callback(struct notifier_block *self, if (!bd->ops) goto out; - if (bd->ops->check_fb && !bd->ops->check_fb(bd, evdata->info)) + else if (bd->ops->check_fb && !bd->ops->check_fb(bd, info)) goto out; +#if IS_ENABLED(CONFIG_FB_BACKLIGHT) + else if (info->bl_dev && info->bl_dev != bd) + goto out; +#endif fb_blank = *(int *)evdata->data; if (fb_blank == FB_BLANK_UNBLANK && !bd->fb_bl_on[node]) {