On Thu, Dec 19, 2024 at 03:03:29PM +0800, Xin Ji wrote: > When user enabled HDCP feature, userspace will set HDCP content > to DRM_MODE_CONTENT_PROTECTION_DESIRED. Next, anx7625 will update > HDCP content to DRM_MODE_CONTENT_PROTECTION_ENABLED if down stream > support HDCP feature. > > As anx7625 bridge IC will be power down after call .atomic_disable(), > then all HDCP status will be lost on chip. So we should reestablish > HDCP again in .atomic_enable(), and update hdcp content to DESIRE if > current HDCP content is ENABLE in .atomic_disable(). > > v4: > - Change HDCP content value to DESIRED if HDCP status is ENABLE in bridge > interface .atomic_enable(). > > v3: > - Move hdcp content value checking from bridge interface > .atomic_check() to .atomic_enable() > > v2: > - Add more details in commit message > > Signed-off-by: Xin Ji <xji@xxxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/bridge/analogix/anx7625.c | 73 +++++++++-------------- > 1 file changed, 29 insertions(+), 44 deletions(-) Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> Thank you for going through the reviews and explaining the issue! -- With best wishes Dmitry
