[PATCH 13/14] drm/msm/dp: move next_bridge handling to dp_display

Kuogee Hsieh quic_khsieh at quicinc.com
Mon Jan 22 17:28:07 UTC 2024


On 1/19/2024 6:31 PM, Dmitry Baryshkov wrote:
> On Fri, 19 Jan 2024 at 23:14, Kuogee Hsieh <quic_khsieh at quicinc.com> wrote:
>> Dmitry,
>>
>> I am testing this patch serial with msm-next branch.
>>
>> This patch cause system crash during booting up for me.
>>
>> Is this patch work for you?
> Yes, tested on top of linux-next. However I only tested it with
> DP-over-USBC. What is your testcase? Could you please share the crash
> log?

I tested it on chrome device (sc7280) which has eDP as primary and 
without external USBC DP connected.

It crashes during boot.

I will debug it more and collect logs for you.


>> On 12/29/2023 2:56 PM, Dmitry Baryshkov wrote:
>>> Remove two levels of indirection and fetch next bridge directly in
>>> dp_display_probe_tail().
>>>
>>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
>>> ---
>>>    drivers/gpu/drm/msm/dp/dp_display.c | 42 +++++++++--------------------
>>>    drivers/gpu/drm/msm/dp/dp_parser.c  | 14 ----------
>>>    drivers/gpu/drm/msm/dp/dp_parser.h  | 14 ----------
>>>    3 files changed, 13 insertions(+), 57 deletions(-)


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