diff options
| -rw-r--r-- | drivers/video/s3c-fb.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index 688b9d8c396a..84cf6319aac2 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c @@ -496,6 +496,8 @@ static int s3c_fb_set_par(struct fb_info *info) dev_dbg(sfb->dev, "setting framebuffer parameters\n"); + pm_runtime_get_sync(sfb->dev); + shadow_protect_win(win, 1); switch (var->bits_per_pixel) { @@ -692,6 +694,8 @@ static int s3c_fb_set_par(struct fb_info *info) shadow_protect_win(win, 0); + pm_runtime_put_sync(sfb->dev); + return 0; } @@ -763,6 +767,8 @@ static int s3c_fb_setcolreg(unsigned regno, dev_dbg(sfb->dev, "%s: win %d: %d => rgb=%d/%d/%d\n", __func__, win->index, regno, red, green, blue); + pm_runtime_get_sync(sfb->dev); + switch (info->fix.visual) { case FB_VISUAL_TRUECOLOR: /* true-colour, use pseudo-palette */ @@ -790,9 +796,11 @@ static int s3c_fb_setcolreg(unsigned regno, break; default: + pm_runtime_put_sync(sfb->dev); return 1; /* unknown type */ } + pm_runtime_put_sync(sfb->dev); return 0; } @@ -812,6 +820,8 @@ static int s3c_fb_blank(int blank_mode, struct fb_info *info) dev_dbg(sfb->dev, "blank mode %d\n", blank_mode); + pm_runtime_get_sync(sfb->dev); + wincon = readl(sfb->regs + sfb->variant.wincon + (index * 4)); switch (blank_mode) { @@ -839,6 +849,7 @@ static int s3c_fb_blank(int blank_mode, struct fb_info *info) case FB_BLANK_VSYNC_SUSPEND: case FB_BLANK_HSYNC_SUSPEND: default: + pm_runtime_put_sync(sfb->dev); return 1; } @@ -869,6 +880,8 @@ static int s3c_fb_blank(int blank_mode, struct fb_info *info) shadow_protect_win(win, 0); } + pm_runtime_put_sync(sfb->dev); + return 0; } @@ -891,6 +904,8 @@ static int s3c_fb_pan_display(struct fb_var_screeninfo *var, void __iomem *buf = sfb->regs + win->index * 8; unsigned int start_boff, end_boff; + pm_runtime_get_sync(sfb->dev); + /* Offset in bytes to the start of the displayed area */ start_boff = var->yoffset * info->fix.line_length; /* X offset depends on the current bpp */ @@ -909,6 +924,7 @@ static int s3c_fb_pan_display(struct fb_var_screeninfo *var, break; default: dev_err(sfb->dev, "invalid bpp\n"); + pm_runtime_put_sync(sfb->dev); return -EINVAL; } } @@ -924,6 +940,7 @@ static int s3c_fb_pan_display(struct fb_var_screeninfo *var, shadow_protect_win(win, 0); + pm_runtime_put_sync(sfb->dev); return 0; } @@ -1013,11 +1030,16 @@ static int s3c_fb_wait_for_vsync(struct s3c_fb *sfb, u32 crtc) if (crtc != 0) return -ENODEV; + pm_runtime_get_sync(sfb->dev); + count = sfb->vsync_info.count; s3c_fb_enable_irq(sfb); ret = wait_event_interruptible_timeout(sfb->vsync_info.wait, count != sfb->vsync_info.count, msecs_to_jiffies(VSYNC_TIMEOUT_MSEC)); + + pm_runtime_put_sync(sfb->dev); + if (ret == 0) return -ETIMEDOUT; |