13 files changed, 94 insertions, 36 deletions

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 8dce25126330..bac163450216 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -111,7 +111,7 @@ static int atmel_bl_get_brightness(struct backlight_device *bl)
         return lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_VAL);
 }
 
-static struct backlight_ops atmel_lcdc_bl_ops = {
+static const struct backlight_ops atmel_lcdc_bl_ops = {
         .update_status = atmel_bl_update_status,
         .get_brightness = atmel_bl_get_brightness,
 };
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 34a0851bcbfa..dd9de2e80580 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1786,7 +1786,7 @@ static int aty128_bl_get_brightness(struct backlight_device *bd)
         return bd->props.brightness;
 }
 
-static struct backlight_ops aty128_bl_data = {
+static const struct backlight_ops aty128_bl_data = {
         .get_brightness = aty128_bl_get_brightness,
         .update_status  = aty128_bl_update_status,
 };
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 5a3ce3ad1ec8..767ab4fb1a05 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2221,7 +2221,7 @@ static int aty_bl_get_brightness(struct backlight_device *bd)
         return bd->props.brightness;
 }
 
-static struct backlight_ops aty_bl_data = {
+static const struct backlight_ops aty_bl_data = {
         .get_brightness = aty_bl_get_brightness,
         .update_status  = aty_bl_update_status,
 };
diff --git a/drivers/video/aty/radeon_backlight.c b/drivers/video/aty/radeon_backlight.c
index 256966e9667d..9b811ddbce83 100644
--- a/drivers/video/aty/radeon_backlight.c
+++ b/drivers/video/aty/radeon_backlight.c
@@ -128,7 +128,7 @@ static int radeon_bl_get_brightness(struct backlight_device *bd)
         return bd->props.brightness;
 }
 
-static struct backlight_ops radeon_bl_data = {
+static const struct backlight_ops radeon_bl_data = {
         .get_brightness = radeon_bl_get_brightness,
         .update_status  = radeon_bl_update_status,
 };
diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index 38ffc3fbcbe4..c789c46e38af 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -155,7 +155,7 @@ out:
         return -EINVAL;
 }
 
-static struct backlight_ops pm860x_backlight_ops = {
+static const struct backlight_ops pm860x_backlight_ops = {
         .options        = BL_CORE_SUSPENDRESUME,
         .update_status  = pm860x_backlight_update_status,
         .get_brightness = pm860x_backlight_get_brightness,
diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index c67801e57aaf..98ad3e5f7c85 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -25,7 +25,7 @@
 struct l4f00242t03_priv {
         struct spi_device       *spi;
         struct lcd_device       *ld;
-        int lcd_on:1;
+        int lcd_state;
         struct regulator *io_reg;
         struct regulator *core_reg;
 };
@@ -62,11 +62,36 @@ static void l4f00242t03_lcd_init(struct spi_device *spi)
                 regulator_enable(priv->core_reg);
         }
 
+        l4f00242t03_reset(pdata->reset_gpio);
+
         gpio_set_value(pdata->data_enable_gpio, 1);
         msleep(60);
         spi_write(spi, (const u8 *)cmd, ARRAY_SIZE(cmd) * sizeof(u16));
 }
 
+static void l4f00242t03_lcd_powerdown(struct spi_device *spi)
+{
+        struct l4f00242t03_pdata *pdata = spi->dev.platform_data;
+        struct l4f00242t03_priv *priv = dev_get_drvdata(&spi->dev);
+
+        dev_dbg(&spi->dev, "Powering down LCD\n");
+
+        gpio_set_value(pdata->data_enable_gpio, 0);
+
+        if (priv->io_reg)
+                regulator_disable(priv->io_reg);
+
+        if (priv->core_reg)
+                regulator_disable(priv->core_reg);
+}
+
+static int l4f00242t03_lcd_power_get(struct lcd_device *ld)
+{
+        struct l4f00242t03_priv *priv = lcd_get_data(ld);
+
+        return priv->lcd_state;
+}
+
 static int l4f00242t03_lcd_power_set(struct lcd_device *ld, int power)
 {
         struct l4f00242t03_priv *priv = lcd_get_data(ld);
@@ -79,35 +104,54 @@ static int l4f00242t03_lcd_power_set(struct lcd_device *ld, int power)
         const u16 disoff = 0x28;
 
         if (power <= FB_BLANK_NORMAL) {
-                if (priv->lcd_on)
-                        return 0;
-
-                dev_dbg(&spi->dev, "turning on LCD\n");
-
-                spi_write(spi, (const u8 *)&slpout, sizeof(u16));
-                msleep(60);
-                spi_write(spi, (const u8 *)&dison, sizeof(u16));
-
-                priv->lcd_on = 1;
+                if (priv->lcd_state <= FB_BLANK_NORMAL) {
+                        /* Do nothing, the LCD is running */
+                } else if (priv->lcd_state < FB_BLANK_POWERDOWN) {
+                        dev_dbg(&spi->dev, "Resuming LCD\n");
+
+                        spi_write(spi, (const u8 *)&slpout, sizeof(u16));
+                        msleep(60);
+                        spi_write(spi, (const u8 *)&dison, sizeof(u16));
+                } else {
+                        /* priv->lcd_state == FB_BLANK_POWERDOWN */
+                        l4f00242t03_lcd_init(spi);
+                        priv->lcd_state = FB_BLANK_VSYNC_SUSPEND;
+                        l4f00242t03_lcd_power_set(priv->ld, power);
+                }
+        } else if (power < FB_BLANK_POWERDOWN) {
+                if (priv->lcd_state <= FB_BLANK_NORMAL) {
+                        /* Send the display in standby */
+                        dev_dbg(&spi->dev, "Standby the LCD\n");
+
+                        spi_write(spi, (const u8 *)&disoff, sizeof(u16));
+                        msleep(60);
+                        spi_write(spi, (const u8 *)&slpin, sizeof(u16));
+                } else if (priv->lcd_state < FB_BLANK_POWERDOWN) {
+                        /* Do nothing, the LCD is already in standby */
+                } else {
+                        /* priv->lcd_state == FB_BLANK_POWERDOWN */
+                        l4f00242t03_lcd_init(spi);
+                        priv->lcd_state = FB_BLANK_UNBLANK;
+                        l4f00242t03_lcd_power_set(ld, power);
+                }
         } else {
-                if (!priv->lcd_on)
-                        return 0;
-
-                dev_dbg(&spi->dev, "turning off LCD\n");
-
-                spi_write(spi, (const u8 *)&disoff, sizeof(u16));
-                msleep(60);
-                spi_write(spi, (const u8 *)&slpin, sizeof(u16));
-
-                priv->lcd_on = 0;
+                /* power == FB_BLANK_POWERDOWN */
+                if (priv->lcd_state != FB_BLANK_POWERDOWN) {
+                        /* Clear the screen before shutting down */
+                        spi_write(spi, (const u8 *)&disoff, sizeof(u16));
+                        msleep(60);
+                        l4f00242t03_lcd_powerdown(spi);
+                }
         }
 
+        priv->lcd_state = power;
+
         return 0;
 }
 
 static struct lcd_ops l4f_ops = {
         .set_power      = l4f00242t03_lcd_power_set,
-        .get_power      = NULL,
+        .get_power      = l4f00242t03_lcd_power_get,
 };
 
 static int __devinit l4f00242t03_probe(struct spi_device *spi)
@@ -185,9 +229,9 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
         }
 
         /* Init the LCD */
-        l4f00242t03_reset(pdata->reset_gpio);
         l4f00242t03_lcd_init(spi);
-        l4f00242t03_lcd_power_set(priv->ld, 1);
+        priv->lcd_state = FB_BLANK_VSYNC_SUSPEND;
+        l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_UNBLANK);
 
         dev_info(&spi->dev, "Epson l4f00242t03 lcd probed.\n");
 
@@ -214,9 +258,11 @@ static int __devexit l4f00242t03_remove(struct spi_device *spi)
         struct l4f00242t03_priv *priv = dev_get_drvdata(&spi->dev);
         struct l4f00242t03_pdata *pdata = priv->spi->dev.platform_data;
 
-        l4f00242t03_lcd_power_set(priv->ld, 0);
+        l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN);
         lcd_device_unregister(priv->ld);
 
+        dev_set_drvdata(&spi->dev, NULL);
+
         gpio_free(pdata->data_enable_gpio);
         gpio_free(pdata->reset_gpio);
 
@@ -230,6 +276,15 @@ static int __devexit l4f00242t03_remove(struct spi_device *spi)
         return 0;
 }
 
+static void l4f00242t03_shutdown(struct spi_device *spi)
+{
+        struct l4f00242t03_priv *priv = dev_get_drvdata(&spi->dev);
+
+        if (priv)
+                l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN);
+
+}
+
 static struct spi_driver l4f00242t03_driver = {
         .driver = {
                 .name   = "l4f00242t03",
@@ -237,6 +292,7 @@ static struct spi_driver l4f00242t03_driver = {
         },
         .probe          = l4f00242t03_probe,
         .remove         = __devexit_p(l4f00242t03_remove),
+        .shutdown       = l4f00242t03_shutdown,
 };
 
 static __init int l4f00242t03_init(void)
diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c
index b2b2c7ba1f63..209acc105cbc 100644
--- a/drivers/video/backlight/max8925_bl.c
+++ b/drivers/video/backlight/max8925_bl.c
@@ -92,7 +92,7 @@ static int max8925_backlight_get_brightness(struct backlight_device *bl)
         return ret;
 }
 
-static struct backlight_ops max8925_backlight_ops = {
+static const struct backlight_ops max8925_backlight_ops = {
         .options        = BL_CORE_SUSPENDRESUME,
         .update_status  = max8925_backlight_update_status,
         .get_brightness = max8925_backlight_get_brightness,
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 915448ec75bf..c97491b8b39b 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -375,7 +375,8 @@ static const char *vgacon_startup(void)
         u16 saved1, saved2;
         volatile u16 *p;
 
-        if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) {
+        if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB ||
+            screen_info.orig_video_isVGA == VIDEO_TYPE_EFI) {
               no_vga:
 #ifdef CONFIG_DUMMY_CONSOLE
                 conswitchp = &dummy_con;
diff --git a/drivers/video/nvidia/nv_backlight.c b/drivers/video/nvidia/nv_backlight.c
index 2fb552a6f32c..6aac6d1b937b 100644
--- a/drivers/video/nvidia/nv_backlight.c
+++ b/drivers/video/nvidia/nv_backlight.c
@@ -87,7 +87,7 @@ static int nvidia_bl_get_brightness(struct backlight_device *bd)
         return bd->props.brightness;
 }
 
-static struct backlight_ops nvidia_bl_ops = {
+static const struct backlight_ops nvidia_bl_ops = {
         .get_brightness = nvidia_bl_get_brightness,
         .update_status  = nvidia_bl_update_status,
 };
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index e1c765d11419..61026f96ad20 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -465,7 +465,7 @@ static int taal_bl_get_intensity(struct backlight_device *dev)
         return 0;
 }
 
-static struct backlight_ops taal_bl_ops = {
+static const struct backlight_ops taal_bl_ops = {
         .get_brightness = taal_bl_get_intensity,
         .update_status  = taal_bl_update_status,
 };
diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index 618f36bec10d..da388186d617 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -331,7 +331,7 @@ static int riva_bl_get_brightness(struct backlight_device *bd)
         return bd->props.brightness;
 }
 
-static struct backlight_ops riva_bl_ops = {
+static const struct backlight_ops riva_bl_ops = {
         .get_brightness = riva_bl_get_brightness,
         .update_status  = riva_bl_update_status,
 };
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index e3eb77dfbf22..74d9f546a2e8 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -22,6 +22,7 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
+#include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include <sound/initval.h>
 
diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c
index dee64c3b1e67..2ab704118c44 100644
--- a/drivers/video/sstfb.c
+++ b/drivers/video/sstfb.c
@@ -536,7 +536,7 @@ static int sstfb_set_par(struct fb_info *info)
         fbiinit2 = sst_read(FBIINIT2);
         fbiinit3 = sst_read(FBIINIT3);
 
-        /* everything is reset. we enable fbiinit2/3 remap : dac acces ok */
+        /* everything is reset. we enable fbiinit2/3 remap : dac access ok */
         pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
                                PCI_EN_INIT_WR | PCI_REMAP_DAC );