video: fbdev: fsl: Fix the sleep function for FSL DIU module

For deep sleep, the diu module will power off, when wake up
from the deep sleep, the registers need to be reinitialized.

Signed-off-by: Jason Jin <Jason.Jin@freescale.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Acked-by: Timur Tabi <timur@tabi.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c
index 7fa2e6f9e322..b335c1ae8625 100644
--- a/drivers/video/fbdev/fsl-diu-fb.c
+++ b/drivers/video/fbdev/fsl-diu-fb.c
@@ -1628,9 +1628,16 @@ static int fsl_diu_suspend(struct platform_device *ofdev, pm_message_t state)
 static int fsl_diu_resume(struct platform_device *ofdev)
 {
         struct fsl_diu_data *data;
+        unsigned int i;
 
         data = dev_get_drvdata(&ofdev->dev);
-        enable_lcdc(data->fsl_diu_info);
+
+        fsl_diu_enable_interrupts(data);
+        update_lcdc(data->fsl_diu_info);
+        for (i = 0; i < NUM_AOIS; i++) {
+                if (data->mfb[i].count)
+                        fsl_diu_enable_panel(&data->fsl_diu_info[i]);
+        }
 
         return 0;
 }