[PATCH] drm/i915/lnl: Modeset sequence change for DP on LNL

[Chauhan, Shekhar]

Understood.

On 2/28/2024 22:14, Gustavo Sousa wrote:
> Drive-by comment: display stuff should be sent to
> intel-gfx at lists.freedesktop.org.
>
> Quoting Shekhar Chauhan (2024-02-28 13:11:44-03:00)
>> Currently, the driver is only waiting for 1ms for
>> idle patterns. But starting from LNL and beyond,
>> the MST wants the driver to wait for 1640us before
>> timing out (which we round up to 2ms).
>>
>> BSpec: 68849
>> Signed-off-by: Shekhar Chauhan<shekhar.chauhan at intel.com>
>> ---
>> drivers/gpu/drm/i915/display/intel_ddi.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
>> index bea441590204..05ba3642d486 100644
>> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
>> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
>> @@ -3680,7 +3680,7 @@ static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp,
>>
>>          if (intel_de_wait_for_set(dev_priv,
>>                                    dp_tp_status_reg(encoder, crtc_state),
>> -                                  DP_TP_STATUS_IDLE_DONE, 1))
>> +                                  DP_TP_STATUS_IDLE_DONE, 2))
>>                  drm_err(&dev_priv->drm,
>>                          "Timed out waiting for DP idle patterns\n");
>> }
>> -- 
>> 2.34.1
>>
-- 
-shekhar
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