2024-04-26 16:05:28

by Jerome Brunet

Subject: [PATCH 0/2] drm/meson: fix hdmi auxiliary system operation without display

CEC and ARC should work even when HDMI is not actively used for the
display but it is not the case with Amlogic HDMI.

This is important for devices such as sound bars which may use DSI
to display a UI and HDMI for CEC/ARC. A display is not required for these
functions

This patchset fixes the problem.

Jerome Brunet (2):
drm/meson: dw-hdmi: power up phy on device init
drm/meson: dw-hdmi: add bandgap setting for g12

drivers/gpu/drm/meson/meson_dw_hdmi.c | 70 ++++++++++++---------------
1 file changed, 31 insertions(+), 39 deletions(-)

--
2.43.0

2024-05-03 08:51:27

by Neil Armstrong

Subject: Re: [PATCH 0/2] drm/meson: fix hdmi auxiliary system operation without display

Hi,

On Fri, 26 Apr 2024 18:02:52 +0200, Jerome Brunet wrote:
> CEC and ARC should work even when HDMI is not actively used for the
> display but it is not the case with Amlogic HDMI.
>
> This is important for devices such as sound bars which may use DSI
> to display a UI and HDMI for CEC/ARC. A display is not required for these
> functions
>
> [...]

Thanks, Applied to https://gitlab.freedesktop.org/drm/misc/kernel.git (drm-misc-fixes)

[1/2] drm/meson: dw-hdmi: power up phy on device init
https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/04703bfd7f99c016a823c74712b97f8b5590ce87
[2/2] drm/meson: dw-hdmi: add bandgap setting for g12
https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/08001033121dd92b8297a5b7333636b466c30f13

--
Neil