[RFC v3 3/5] drm/mediatek: add shadow register support

2016-06-20 Thread YT Shen
Hi CK, On Mon, 2016-06-13 at 14:43 +0800, CK Hu wrote: > Hi, YT: > > One comment inline. > > On Thu, 2016-06-09 at 00:03 +0800, YT Shen wrote: > > We need to acquire mutex before using the resources, > > and need to release it after finished. > > So we don't need to write registers in the blanki

[RFC v3 3/5] drm/mediatek: add shadow register support

2016-06-13 Thread CK Hu
Hi, YT: One comment inline. On Thu, 2016-06-09 at 00:03 +0800, YT Shen wrote: > We need to acquire mutex before using the resources, > and need to release it after finished. > So we don't need to write registers in the blanking period. > > Signed-off-by: YT Shen > --- > drivers/gpu/drm/mediate

[RFC v3 3/5] drm/mediatek: add shadow register support

2016-06-09 Thread YT Shen
We need to acquire mutex before using the resources, and need to release it after finished. So we don't need to write registers in the blanking period. Signed-off-by: YT Shen --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 75 +++ drivers/gpu/drm/mediatek/mtk_drm_ddp.