From patchwork Tue Aug 20 09:22:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13769692 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 A185C18C018; Tue, 20 Aug 2024 09:35:02 +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=1724146504; cv=none; b=ts6LJOQzjKQqqN0b5+Q/jpPJhqV46Ot6Gh42cCVu0KXYUgJd9XxpUk1AqWEbzRsKeeoKY/36lZ/CwSe9h0Rl/y0dVcTTm708w4mwuHmR9ehCpFSz/gBb/mFlqhwWPYbjVzHj2JObrDVnqX6g8GW+R2FEI84+n+K6S3gdkNA3TQ8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724146504; c=relaxed/simple; bh=hO+9/peRBRSOdRKYxz3cRAB9PYRVvZF1O3GdneUrT1Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VP8ypwwrNiEyZ4mhSwvzXvU6plnfBUkgKnP8Qs6MRPt5P0wfRX4u2q2pAVGj/AMrUxstcwsBjNSz1ZjTddss4NWor6nirYJXM+Nl+0UecxmnhSSSgn6aNi5+M4pKe65EkKAQZZ2sVANbYLCxM/nw40WY93YWSPqLSvKLeubP3+o= 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=ttrkV99W; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=IdhlVyWN; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=ttrkV99W; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=IdhlVyWN; 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="ttrkV99W"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="IdhlVyWN"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="ttrkV99W"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="IdhlVyWN" Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (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 DEC611FFC7; Tue, 20 Aug 2024 09:35:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1724146500; 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=12WOr2Ic7YY7MSE30hYZeg06cAskBzKrUPGQ1N0jNZ0=; b=ttrkV99WAkowS1AsPbapvlTuUEEKyTKMNk6mZmDEEI1C5LsqVM5U8Ixfd892DU6sIo77ZX s5FEMIEAaLDpUs1tKE3KLsuF31rEatNvLOXufuwDPOCpvixno2enIv74Jv+xEMbheB7Pyx pfbIPQv5Dy9I6cKmKNqmKMXRQYIUDdM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1724146500; 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=12WOr2Ic7YY7MSE30hYZeg06cAskBzKrUPGQ1N0jNZ0=; b=IdhlVyWNn4Bwt9UqkZ++PX9SML1oiwTb477Bb5K/W0subaHSv1P5rq6kSOkENgfu1EPC7f mbTUCZS2MpxOTmBg== Authentication-Results: smtp-out2.suse.de; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=ttrkV99W; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=IdhlVyWN DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1724146500; 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=12WOr2Ic7YY7MSE30hYZeg06cAskBzKrUPGQ1N0jNZ0=; b=ttrkV99WAkowS1AsPbapvlTuUEEKyTKMNk6mZmDEEI1C5LsqVM5U8Ixfd892DU6sIo77ZX s5FEMIEAaLDpUs1tKE3KLsuF31rEatNvLOXufuwDPOCpvixno2enIv74Jv+xEMbheB7Pyx pfbIPQv5Dy9I6cKmKNqmKMXRQYIUDdM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1724146500; 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=12WOr2Ic7YY7MSE30hYZeg06cAskBzKrUPGQ1N0jNZ0=; b=IdhlVyWNn4Bwt9UqkZ++PX9SML1oiwTb477Bb5K/W0subaHSv1P5rq6kSOkENgfu1EPC7f mbTUCZS2MpxOTmBg== Received: from imap1.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 imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 81C6013AFE; Tue, 20 Aug 2024 09:35:00 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id 0MN6HkRjxGa3RAAAD6G6ig (envelope-from ); Tue, 20 Aug 2024 09:35:00 +0000 From: Thomas Zimmermann To: lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com, deller@gmx.de, bonbons@linux-vserver.org, jikos@kernel.org, bentiss@kernel.org, shc_work@mail.ru, s.hauer@pengutronix.de, kernel@pengutronix.de, shawnguo@kernel.org, festevam@gmail.com Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-omap@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 03/28] backlight: lcd: Add LCD_POWER_ constants for power states Date: Tue, 20 Aug 2024 11:22:41 +0200 Message-ID: <20240820093452.68270-4-tzimmermann@suse.de> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240820093452.68270-1-tzimmermann@suse.de> References: <20240820093452.68270-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Rspamd-Queue-Id: DEC611FFC7 X-Spam-Score: -3.01 X-Rspamd-Action: no action X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; FREEMAIL_TO(0.00)[kernel.org,linaro.org,gmail.com,gmx.de,linux-vserver.org,mail.ru,pengutronix.de]; FUZZY_BLOCKED(0.00)[rspamd.com]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; RCPT_COUNT_TWELVE(0.00)[16]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:rdns,imap1.dmz-prg2.suse.org:helo,suse.de:dkim,suse.de:mid,suse.de:email]; FROM_EQ_ENVFROM(0.00)[]; R_RATELIMIT(0.00)[to_ip_from(RLk469idygq4891mojaqehp6ty)]; RCVD_TLS_ALL(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com,gmx.de,mail.ru] X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Flag: NO X-Spam-Level: Duplicate FB_BLANK_ constants as LCD_POWER_ constants in the lcd header file. Allows lcd drivers to avoid including the fbdev header file and removes a compile-time dependency between the two subsystems. The new LCD_POWER_ constants have the same values as their FB_BLANK_ counterparts. Hence semantics does not change and the lcd drivers can be converted one by one. Each instance of FB_BLANK_UNBLANK becomes LCD_POWER_ON, each of FB_BLANK_POWERDOWN becomes LCD_POWER_OFF, FB_BLANK_NORMAL becomes LCD_POWER_REDUCED and FB_BLANK_VSYNC_SUSPEND becomes LCD_POWER_REDUCED_VSYNC_SUSPEND. Lcd code or drivers do not use FB_BLANK_HSYNC_SUSPEND, so no new constants for this is being added. The tokens LCD_POWER_REDUCED and LCD_POWER_REDUCED_VSYNC_SUSPEND are deprecated and drivers should replace them with LCD_POWER_ON and LCD_POWER_OFF. See also commit a1cacb8a8e70 ("backlight: Add BACKLIGHT_POWER_ constants for power states"), which added similar constants fro backlight drivers. Signed-off-by: Thomas Zimmermann --- drivers/video/backlight/lcd.c | 22 +++++++++++++++++++++- include/linux/lcd.h | 5 +++++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 43a6752ec27f..edd5ccb7a43a 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -20,6 +20,24 @@ #if defined(CONFIG_FB) || (defined(CONFIG_FB_MODULE) && \ defined(CONFIG_LCD_CLASS_DEVICE_MODULE)) +static int to_lcd_power(int fb_blank) +{ + switch (fb_blank) { + case FB_BLANK_UNBLANK: + return LCD_POWER_ON; + /* deprecated; TODO: should become 'off' */ + case FB_BLANK_NORMAL: + return LCD_POWER_REDUCED; + case FB_BLANK_VSYNC_SUSPEND: + return LCD_POWER_REDUCED_VSYNC_SUSPEND; + /* 'off' */ + case FB_BLANK_HSYNC_SUSPEND: + case FB_BLANK_POWERDOWN: + default: + return LCD_POWER_OFF; + } +} + /* This callback gets called when something important happens inside a * framebuffer driver. We're looking if that important event is blanking, * and if it is, we're switching lcd power as well ... @@ -43,8 +61,10 @@ static int fb_notifier_callback(struct notifier_block *self, goto out; if (event == FB_EVENT_BLANK) { + int power = to_lcd_power(*(int *)evdata->data); + if (ld->ops->set_power) - ld->ops->set_power(ld, *(int *)evdata->data); + ld->ops->set_power(ld, power); } else { if (ld->ops->set_mode) ld->ops->set_mode(ld, evdata->data); diff --git a/include/linux/lcd.h b/include/linux/lcd.h index 68703a51dc53..dfcc54d327f5 100644 --- a/include/linux/lcd.h +++ b/include/linux/lcd.h @@ -14,6 +14,11 @@ #include #include +#define LCD_POWER_ON (0) +#define LCD_POWER_REDUCED (1) // deprecated; don't use in new code +#define LCD_POWER_REDUCED_VSYNC_SUSPEND (2) // deprecated; don't use in new code +#define LCD_POWER_OFF (4) + /* Notes on locking: * * lcd_device->ops_lock is an internal backlight lock protecting the ops