From patchwork Mon Feb 12 16:16:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13553451 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 3C3493D0D1; Mon, 12 Feb 2024 16:26:50 +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=1707755212; cv=none; b=urUyv6+ygc5+I6yjgpXLYYFJiPcTqfIy5KMDhcIt5dGja59wMyICGQeEsCG0HahPaAp8ZFBRxibK1IhS9BpVf3ViZ5gqsKXRkP6CO4KRVoTNCq+0u8iNruSSa3gx87ujiRAZqMed3E0VTQc+tp00M/6nGZ3N4KtNJGfZMrUTShY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707755212; c=relaxed/simple; bh=C2WavXORd0CbbT0k9Kv+WFEysZqm+sHXxqvEfYE3OYs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eMedevoXUT0gZSedA3LYHHIF9v8T9vbI0wbKAc+z5GQ2x1dkvPOv3aU/gCn+YhTwiiG4ksUOQlqs8You+3sIbRuRul15q/BCkTwjL3DGL+kRKCS6dDPvHDeV47aLksk1BbV+nG3qPpssHN4I4VgZLjgYTtmgRMjHQukkxlyl9zg= 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; 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 Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:98]) (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 7508E1FD53; Mon, 12 Feb 2024 16:26:49 +0000 (UTC) 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 34E6F13A3D; Mon, 12 Feb 2024 16:26:49 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id gDOlC8lGymXmXgAAn2gu4w (envelope-from ); Mon, 12 Feb 2024 16:26:49 +0000 From: Thomas Zimmermann To: lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com, deller@gmx.de, 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 01/10] backlight: Match backlight device against struct fb_info.bl_dev Date: Mon, 12 Feb 2024 17:16:34 +0100 Message-ID: <20240212162645.5661-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240212162645.5661-1-tzimmermann@suse.de> References: <20240212162645.5661-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Level: Authentication-Results: smtp-out2.suse.de; none X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Spam-Score: -4.00 X-Rspamd-Queue-Id: 7508E1FD53 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]) {