diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/s3c-fb.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index 9ffb6b68a8e..09ebbc69b0c 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c @@ -962,8 +962,48 @@ static int __devexit s3c_fb_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int s3c_fb_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct s3c_fb *sfb = platform_get_drvdata(pdev); + struct s3c_fb_win *win; + int win_no; + + for (win_no = S3C_FB_MAX_WIN; win_no >= 0; win_no--) { + win = sfb->windows[win_no]; + if (!win) + continue; + + /* use the blank function to push into power-down */ + s3c_fb_blank(FB_BLANK_POWERDOWN, win->fbinfo); + } + + clk_disable(sfb->bus_clk); + return 0; +} + +static int s3c_fb_resume(struct platform_device *pdev) +{ + struct s3c_fb *sfb = platform_get_drvdata(pdev); + struct s3c_fb_win *win; + int win_no; + + clk_enable(sfb->bus_clk); + + for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) { + win = sfb->windows[win_no]; + if (!win) + continue; + + s3c_fb_set_par(win->fbinfo); + } + + return 0; +} +#else #define s3c_fb_suspend NULL #define s3c_fb_resume NULL +#endif static struct platform_driver s3c_fb_driver = { .probe = s3c_fb_probe, |