4 files changed, 35 insertions, 5 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 540909de6247..effdb373b8db 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -223,8 +223,14 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo)
 
 static void exit_backlight(struct atmel_lcdfb_info *sinfo)
 {
-	if (sinfo->backlight)
-		backlight_device_unregister(sinfo->backlight);
+	if (!sinfo->backlight)
+		return;
+
+	if (sinfo->backlight->ops) {
+		sinfo->backlight->props.power = FB_BLANK_POWERDOWN;
+		sinfo->backlight->ops->update_status(sinfo->backlight);
+	}
+	backlight_device_unregister(sinfo->backlight);
 }
 
 #else
@@ -461,8 +467,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
 	if (info->fix.smem_len) {
 		unsigned int smem_len = (var->xres_virtual * var->yres_virtual
 					 * ((var->bits_per_pixel + 7) / 8));
-		if (smem_len > info->fix.smem_len)
+		if (smem_len > info->fix.smem_len) {
+			dev_err(dev, "Frame buffer is too small (%u) for screen size (need at least %u)\n",
+				info->fix.smem_len, smem_len);
 			return -EINVAL;
+		}
 	}
 
 	/* Saturate vertical and horizontal timings at maximum values */
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 60cc6fee6548..c9c2252e3719 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -53,6 +53,8 @@ static char *def_disp_name;
 module_param_named(def_disp, def_disp_name, charp, 0);
 MODULE_PARM_DESC(def_disp, "default display name");
 
+static bool dss_initialized;
+
 const char *omapdss_get_default_display_name(void)
 {
 	return core.default_display_name;
@@ -66,6 +68,12 @@ enum omapdss_version omapdss_get_version(void)
 }
 EXPORT_SYMBOL(omapdss_get_version);
 
+bool omapdss_is_initialized(void)
+{
+	return dss_initialized;
+}
+EXPORT_SYMBOL(omapdss_is_initialized);
+
 struct platform_device *dss_get_core_pdev(void)
 {
 	return core.pdev;
@@ -603,6 +611,8 @@ static int __init omap_dss_init(void)
 		return r;
 	}
 
+	dss_initialized = true;
+
 	return 0;
 }
 
@@ -633,7 +643,15 @@ static int __init omap_dss_init(void)
 
 static int __init omap_dss_init2(void)
 {
-	return omap_dss_register_drivers();
+	int r;
+
+	r = omap_dss_register_drivers();
+	if (r)
+		return r;
+
+	dss_initialized = true;
+
+	return 0;
 }
 
 core_initcall(omap_dss_init);
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index c84bb8a4d0c4..856917b33616 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2416,6 +2416,9 @@ static int omapfb_probe(struct platform_device *pdev)
 
 	DBG("omapfb_probe\n");
 
+	if (omapdss_is_initialized() == false)
+		return -EPROBE_DEFER;
+
 	if (pdev->num_resources != 0) {
 		dev_err(&pdev->dev, "probed for an unknown device\n");
 		r = -ENODEV;
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index d9f08c653d62..dbfe2c18a434 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -710,7 +710,7 @@ static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len);
 
 	dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
-		info->fix.smem_start + vma->vm_pgoff << PAGE_SHIFT,
+		info->fix.smem_start + (vma->vm_pgoff << PAGE_SHIFT),
 		vma->vm_start);
 
 	return r;