diff options
| -rw-r--r-- | drivers/video/atmel_lcdfb.c | 36 | ||||
| -rw-r--r-- | include/video/atmel_lcdc.h | 1 |
2 files changed, 35 insertions, 2 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 4d68b1b880d..6fcf76c1291 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -909,10 +909,42 @@ static int __exit atmel_lcdfb_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM + +static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + struct fb_info *info = platform_get_drvdata(pdev); + struct atmel_lcdfb_info *sinfo = info->par; + + sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_VAL); + lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0); + if (sinfo->atmel_lcdfb_power_control) + sinfo->atmel_lcdfb_power_control(0); + atmel_lcdfb_stop_clock(sinfo); + return 0; +} + +static int atmel_lcdfb_resume(struct platform_device *pdev) +{ + struct fb_info *info = platform_get_drvdata(pdev); + struct atmel_lcdfb_info *sinfo = info->par; + + atmel_lcdfb_start_clock(sinfo); + if (sinfo->atmel_lcdfb_power_control) + sinfo->atmel_lcdfb_power_control(1); + lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, sinfo->saved_lcdcon); + return 0; +} + +#else +#define atmel_lcdfb_suspend NULL +#define atmel_lcdfb_resume NULL +#endif + static struct platform_driver atmel_lcdfb_driver = { .remove = __exit_p(atmel_lcdfb_remove), - -// FIXME need suspend, resume + .suspend = atmel_lcdfb_suspend, + .resume = atmel_lcdfb_resume, .driver = { .name = "atmel_lcdfb", diff --git a/include/video/atmel_lcdc.h b/include/video/atmel_lcdc.h index 336c20db87f..2fd9fad922e 100644 --- a/include/video/atmel_lcdc.h +++ b/include/video/atmel_lcdc.h @@ -39,6 +39,7 @@ struct atmel_lcdfb_info { u8 bl_power; #endif bool lcdcon_is_backlight; + u8 saved_lcdcon; u8 default_bpp; unsigned int default_lcdcon2; |