Hi,
On Thu, May 16, 2019 at 2:40 PM Douglas Anderson dianders@chromium.org wrote:
On Rockchip rk3288-based Chromebooks when you do a suspend/resume cycle:
You lose the ability to detect an HDMI device being plugged in.
If you're using the i2c bus built in to dw_hdmi then it stops
working.
Let's call the core dw-hdmi's suspend/resume functions to restore things.
NOTE: in downstream Chrome OS (based on kernel 3.14) we used the "late/early" versions of suspend/resume because we found that the VOP was sometimes resuming before dw_hdmi and then calling into us before we were fully resumed. For now I have gone back to the normal suspend/resume because I can't reproduce the problems.
Signed-off-by: Douglas Anderson dianders@chromium.org
Changes in v2:
- Add forgotten static (Laurent)
- No empty stub for suspend (Laurent)
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
Whoops, forgot that I should have carried forward:
Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com
-Doug