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path: root/drivers/video/bf54x-lq043fb.c
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Diffstat (limited to 'drivers/video/bf54x-lq043fb.c')
-rw-r--r--drivers/video/bf54x-lq043fb.c49
1 files changed, 14 insertions, 35 deletions
diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index e49ae5edcc00..23b2a8c0dbfc 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -82,7 +82,6 @@ struct bfin_bf54xfb_info {
unsigned char *fb_buffer; /* RGB Buffer */
dma_addr_t dma_handle;
- int lq043_mmap;
int lq043_open_cnt;
int irq;
spinlock_t lock; /* lock */
@@ -316,7 +315,6 @@ static int bfin_bf54x_fb_release(struct fb_info *info, int user)
spin_lock(&fbi->lock);
fbi->lq043_open_cnt--;
- fbi->lq043_mmap = 0;
if (fbi->lq043_open_cnt <= 0) {
@@ -374,33 +372,6 @@ static int bfin_bf54x_fb_check_var(struct fb_var_screeninfo *var,
return 0;
}
-static int bfin_bf54x_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
-{
-
- struct bfin_bf54xfb_info *fbi = info->par;
-
- if (fbi->lq043_mmap)
- return -1;
-
- spin_lock(&fbi->lock);
- fbi->lq043_mmap = 1;
- spin_unlock(&fbi->lock);
-
- vma->vm_start = (unsigned long)(fbi->fb_buffer);
-
- vma->vm_end = vma->vm_start + info->fix.smem_len;
- /* For those who don't understand how mmap works, go read
- * Documentation/nommu-mmap.txt.
- * For those that do, you will know that the VM_MAYSHARE flag
- * must be set in the vma->vm_flags structure on noMMU
- * Other flags can be set, and are documented in
- * include/linux/mm.h
- */
- vma->vm_flags |= VM_MAYSHARE | VM_SHARED;
-
- return 0;
-}
-
int bfin_bf54x_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
if (nocursor)
@@ -452,7 +423,6 @@ static struct fb_ops bfin_bf54x_fb_ops = {
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
- .fb_mmap = bfin_bf54x_fb_mmap,
.fb_cursor = bfin_bf54x_fb_cursor,
.fb_setcolreg = bfin_bf54x_fb_setcolreg,
};
@@ -463,7 +433,7 @@ static int bl_get_brightness(struct backlight_device *bd)
return 0;
}
-static struct backlight_ops bfin_lq043fb_bl_ops = {
+static const struct backlight_ops bfin_lq043fb_bl_ops = {
.get_brightness = bl_get_brightness,
};
@@ -531,6 +501,7 @@ static irqreturn_t bfin_bf54x_irq_error(int irq, void *dev_id)
static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
{
+ struct backlight_properties props;
struct bfin_bf54xfb_info *info;
struct fb_info *fbinfo;
int ret;
@@ -675,10 +646,16 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
goto out8;
}
#ifndef NO_BL_SUPPORT
- bl_dev =
- backlight_device_register("bf54x-bl", NULL, NULL,
- &bfin_lq043fb_bl_ops);
- bl_dev->props.max_brightness = 255;
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = 255;
+ bl_dev = backlight_device_register("bf54x-bl", NULL, NULL,
+ &bfin_lq043fb_bl_ops, &props);
+ if (IS_ERR(bl_dev)) {
+ printk(KERN_ERR DRIVER_NAME
+ ": unable to register backlight.\n");
+ ret = -EINVAL;
+ goto out9;
+ }
lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops);
lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n");
@@ -686,6 +663,8 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
return 0;
+out9:
+ unregister_framebuffer(fbinfo);
out8:
free_irq(info->irq, info);
out7: