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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-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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