diff options
| author | Sandor Yu <R01008@freescale.com> | 2013-11-26 17:31:12 +0800 |
|---|---|---|
| committer | Sandor Yu <R01008@freescale.com> | 2013-11-27 16:23:30 +0800 |
| commit | bf046b0e7762cef5ec5ad4e38ecaa5dbad53f2ec (patch) | |
| tree | c86840922741bf0e926802357633b8a95d999402 | |
| parent | ac760d29366f19eb1a4d4c37899b33019570a447 (diff) | |
ENGR00289857 mxsfb: add suspend/resume function
Add suspend/resume function to mxsfb driver.
Signed-off-by: Sandor Yu <R01008@freescale.com>
| -rw-r--r-- | drivers/video/mxsfb.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 6e683fd92ff7..1b733f7f22c6 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -40,6 +40,7 @@ */ #include <linux/busfreq-imx6.h> +#include <linux/console.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/of_device.h> @@ -198,6 +199,7 @@ struct mxsfb_info { struct completion vsync_complete; struct semaphore flip_sem; int cur_blank; + int restore_blank; }; #define mxsfb_is_v3(host) (host->devdata->ipversion == 3) @@ -1298,8 +1300,42 @@ static int mxsfb_runtime_resume(struct device *dev) #define mxsfb_runtime_resume NULL #endif +#ifdef CONFIG_PM +static int mxsfb_suspend(struct device *pdev) +{ + struct fb_info *fb_info = dev_get_drvdata(pdev); + struct mxsfb_info *host = to_imxfb_host(fb_info); + int saved_blank; + + console_lock(); + fb_set_suspend(fb_info, 1); + saved_blank = host->cur_blank; + mxsfb_blank(FB_BLANK_POWERDOWN, fb_info); + host->restore_blank = saved_blank; + console_unlock(); + return 0; +} + +static int mxsfb_resume(struct device *pdev) +{ + struct fb_info *fb_info = dev_get_drvdata(pdev); + struct mxsfb_info *host = to_imxfb_host(fb_info); + + console_lock(); + mxsfb_blank(host->restore_blank, fb_info); + fb_set_suspend(fb_info, 0); + console_unlock(); + + return 0; +} +#else +#define mxsfb_suspend NULL +#define mxsfb_resume NULL +#endif + static const struct dev_pm_ops mxsfb_pm_ops = { SET_RUNTIME_PM_OPS(mxsfb_runtime_suspend, mxsfb_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(mxsfb_suspend, mxsfb_resume) }; static struct platform_driver mxsfb_driver = { |