[PATCH v9 2/4] drm/msm/dp: Support only IRQ_HPD and REPLUG interrupts for eDP

[Doug Anderson]

Hi,

On Fri, Apr 22, 2022 at 2:11 AM Sankeerth Billakanti
<quic_sbillaka at quicinc.com> wrote:
>
> The panel-edp enables the eDP panel power during probe, get_modes
> and pre-enable. The eDP connect and disconnect interrupts for the eDP/DP
> controller are directly dependent on panel power. As eDP display can be
> assumed as always connected, the controller driver can skip the eDP
> connect and disconnect interrupts. Any disruption in the link status
> will be indicated via the IRQ_HPD interrupts.
>
> So, the eDP controller driver can just enable the IRQ_HPD and replug
> interrupts. The DP controller driver still needs to enable all the
> interrupts.
>
> Signed-off-by: Sankeerth Billakanti <quic_sbillaka at quicinc.com>
> ---
> Changes in v9:
>   - add comment explaining the interrupt status register
>
> Changes in v8:
>   - add comment explaining the interrupt status return
>
> Changes in v7:
>   - reordered the patch in the series
>   - modified the return statement for isr
>   - connector check modified to just check for eDP
>
>  drivers/gpu/drm/msm/dp/dp_catalog.c | 16 ++++++++++------
>  drivers/gpu/drm/msm/dp/dp_display.c | 22 +++++++++++++++++++++-
>  2 files changed, 31 insertions(+), 7 deletions(-)

Reviewed-by: Douglas Anderson <dianders at chromium.org>