summaryrefslogtreecommitdiffstats
path: root/drivers/video
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/atmel_lcdfb.c15
-rw-r--r--drivers/video/omap2/dss/core.c20
-rw-r--r--drivers/video/omap2/omapfb/omapfb-main.c3
-rw-r--r--drivers/video/ps3fb.c2
4 files changed, 35 insertions, 5 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 540909de624..effdb373b8d 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 60cc6fee654..c9c2252e371 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 c84bb8a4d0c..856917b3361 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 d9f08c653d6..dbfe2c18a43 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;