From patchwork Tue May 28 09:02:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 10964323 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 995D2112C for ; Tue, 28 May 2019 09:04:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A2AA271FD for ; Tue, 28 May 2019 09:04:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7E54E28776; Tue, 28 May 2019 09:04:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B11D3271FD for ; Tue, 28 May 2019 09:04:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727199AbfE1JDs (ORCPT ); Tue, 28 May 2019 05:03:48 -0400 Received: from mail-ed1-f68.google.com ([209.85.208.68]:43710 "EHLO mail-ed1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727189AbfE1JDs (ORCPT ); Tue, 28 May 2019 05:03:48 -0400 Received: by mail-ed1-f68.google.com with SMTP id w33so27264824edb.10 for ; Tue, 28 May 2019 02:03:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=cTKR1bWS92y6jx6235i5jk8TVLc5SUi6voiWrgnxv1k=; b=OHI09ErVKCCmMw4Q30PsUkK6DLxfVjZA/v6bgqkrsxPD+SkwEMnDS4vf/ltiyIINaj Ztss2ZLiyE5rSM5QHY5CO2EJUbNv2J8wR3rHcRdLG5/VJS4lIsTYR6xFu9TJvBrksi6M Bj3zaD4xeBsKjtCVcB/MjLtt13R0cup4wCy24= 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=cTKR1bWS92y6jx6235i5jk8TVLc5SUi6voiWrgnxv1k=; b=NkQd8yP9E0t7F0SFSgvEW2Ryf9HtfLTjjBUlzpboefzJh7kLa7jy8LVA/3AcfqJgFn pKab11CK+hWR3R3ELjs009kxd2weXEMtR4vlmol+RQk4R2mHjBvKejNosVbd9hGMgZa2 dgaR+jvqgscZyZ/BiwwreL+TrhjRn/T0IcfC2Cp6q/uRyfPxo/wIZPHVOr5yFV7ARIMA lmV6lTZKlZZ8pxApt4THqCfSwnCiuUd5BcEkJpZQA4AUAGmz2IEGF3EMN9DF9HTrEUrC opF72n0ZhLaKVhnmniQgmC+Q5NzYW5nSmUnugWv5xgGayaig/PkQRVyhxr0rD6OWl+ZP kTew== X-Gm-Message-State: APjAAAWH/bmGvtIqXunz4LGt+HQErm86xFeA02KGY0cHzJiE2VJDZbRF vAUrk8ttyU71Yp2mtnkK7G1aXA== X-Google-Smtp-Source: APXvYqw0UlMJtntWrCQdXZs42SphN4v03iode4I9FwSIGIRrtr2+bmQmVcbINRSwPmSdFt+oMljvkg== X-Received: by 2002:aa7:dd03:: with SMTP id i3mr90707826edv.93.1559034226420; Tue, 28 May 2019 02:03:46 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:569e:0:3106:d637:d723:e855]) by smtp.gmail.com with ESMTPSA id x49sm4072656edm.25.2019.05.28.02.03.44 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 May 2019 02:03:45 -0700 (PDT) From: Daniel Vetter To: LKML Cc: DRI Development , Intel Graphics Development , linux-fbdev@vger.kernel.org, Daniel Thompson , Bartlomiej Zolnierkiewicz , Daniel Vetter , Richard Purdie , Daniel Vetter , Sam Ravnborg , Maarten Lankhorst , Lee Jones , Jingoo Han , Hans de Goede , Yisheng Xie Subject: [PATCH 24/33] Revert "backlight/fbcon: Add FB_EVENT_CONBLANK" Date: Tue, 28 May 2019 11:02:55 +0200 Message-Id: <20190528090304.9388-25-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190528090304.9388-1-daniel.vetter@ffwll.ch> References: <20190528090304.9388-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This reverts commit 994efacdf9a087b52f71e620b58dfa526b0cf928. The justification is that if hw blanking fails (i.e. fbops->fb_blank) fails, then we still want to shut down the backlight. Which is exactly _not_ what fb_blank() does and so rather inconsistent if we end up with different behaviour between fbcon and direct fbdev usage. Given that the entire notifier maze is getting in the way anyway I figured it's simplest to revert this not well justified commit. v2: Add static inline to the dummy version. Cc: Richard Purdie Signed-off-by: Daniel Vetter Reviewed-by: Sam Ravnborg Reviewed-by: Maarten Lankhorst Cc: Lee Jones Cc: Daniel Thompson Cc: Jingoo Han Cc: Bartlomiej Zolnierkiewicz Cc: Daniel Vetter Cc: Hans de Goede Cc: Yisheng Xie Cc: linux-fbdev@vger.kernel.org Acked-by: Daniel Thompson --- drivers/video/backlight/backlight.c | 2 +- drivers/video/fbdev/core/fbcon.c | 14 +------------- drivers/video/fbdev/core/fbmem.c | 1 + include/linux/fb.h | 4 +--- include/linux/fbcon.h | 2 ++ 5 files changed, 6 insertions(+), 17 deletions(-) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 1ef8b6fd62ac..5dc07106a59e 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -47,7 +47,7 @@ static int fb_notifier_callback(struct notifier_block *self, int fb_blank = 0; /* If we aren't interested in this event, skip it immediately ... */ - if (event != FB_EVENT_BLANK && event != FB_EVENT_CONBLANK) + if (event != FB_EVENT_BLANK) return 0; bd = container_of(self, struct backlight_device, fb_notif); diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index ef69bd4ad343..a4617067ff24 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -2350,8 +2350,6 @@ static int fbcon_switch(struct vc_data *vc) static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, int blank) { - struct fb_event event; - if (blank) { unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; @@ -2362,13 +2360,6 @@ static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); vc->vc_video_erase_char = oldc; } - - - lock_fb_info(info); - event.info = info; - event.data = ␣ - fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); - unlock_fb_info(info); } static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) @@ -3240,7 +3231,7 @@ int fbcon_fb_registered(struct fb_info *info) return ret; } -static void fbcon_fb_blanked(struct fb_info *info, int blank) +void fbcon_fb_blanked(struct fb_info *info, int blank) { struct fbcon_ops *ops = info->fbcon_par; struct vc_data *vc; @@ -3344,9 +3335,6 @@ static int fbcon_event_notify(struct notifier_block *self, con2fb = event->data; con2fb->framebuffer = con2fb_map[con2fb->console - 1]; break; - case FB_EVENT_BLANK: - fbcon_fb_blanked(info, *(int *)event->data); - break; case FB_EVENT_REMAP_ALL_CONSOLE: idx = info->node; fbcon_remap_all(idx); diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index ddc0c16b8bbf..9366fbe99a58 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1068,6 +1068,7 @@ fb_blank(struct fb_info *info, int blank) event.data = ␣ early_ret = fb_notifier_call_chain(FB_EARLY_EVENT_BLANK, &event); + fbcon_fb_blanked(info, blank); if (info->fbops->fb_blank) ret = info->fbops->fb_blank(blank, info); diff --git a/include/linux/fb.h b/include/linux/fb.h index 0d86aa31bf8d..1e66fac3124f 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -137,12 +137,10 @@ struct fb_cursor_user { #define FB_EVENT_GET_CONSOLE_MAP 0x07 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */ #define FB_EVENT_SET_CONSOLE_MAP 0x08 -/* A hardware display blank change occurred */ +/* A display blank is requested */ #define FB_EVENT_BLANK 0x09 /* Private modelist is to be replaced */ #define FB_EVENT_MODE_CHANGE_ALL 0x0B -/* A software display blank change occurred */ -#define FB_EVENT_CONBLANK 0x0C /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga_switcheroo */ #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F /* A hardware display blank early change occurred */ diff --git a/include/linux/fbcon.h b/include/linux/fbcon.h index 305e4f2eddac..d67d7ec51ef9 100644 --- a/include/linux/fbcon.h +++ b/include/linux/fbcon.h @@ -14,6 +14,7 @@ int fbcon_mode_deleted(struct fb_info *info, void fbcon_new_modelist(struct fb_info *info); void fbcon_get_requirement(struct fb_info *info, struct fb_blit_caps *caps); +void fbcon_fb_blanked(struct fb_info *info, int blank); #else static inline void fb_console_init(void) {} static inline void fb_console_exit(void) {} @@ -27,6 +28,7 @@ static inline int fbcon_mode_deleted(struct fb_info *info, static inline void fbcon_new_modelist(struct fb_info *info) {} static inline void fbcon_get_requirement(struct fb_info *info, struct fb_blit_caps *caps) {} +static inline void fbcon_fb_blanked(struct fb_info *info, int blank) {} #endif #endif /* _LINUX_FBCON_H */