[PATCH v2 31/38] drm/msm/dp: propagate MST state changes to dp mst module

[Yongxing Mou]

On 2025/6/9 22:56, Dmitry Baryshkov wrote:
> On Mon, Jun 09, 2025 at 08:21:50PM +0800, Yongxing Mou wrote:
>> Introduce APIs to update the MST state change to MST framework when
>> device is plugged/unplugged.
>>
>> Signed-off-by: Yongxing Mou <quic_yongmou at quicinc.com>
>> Signed-off-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
> 
> Hmm, who is the author of the patch?
> 
Sorry for that. will update it . author is Abhinav
>> ---
>>   drivers/gpu/drm/msm/dp/dp_display.c | 20 ++++++++++++++++++++
>>   drivers/gpu/drm/msm/dp/dp_mst_drm.c | 15 +++++++++++++++
>>   drivers/gpu/drm/msm/dp/dp_mst_drm.h |  1 +
>>   3 files changed, 36 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
>> index 323d1c0a9efa4fa30ce97317e873607c54409a11..9dbcf4553cad70c9e3722160a87403fc815765d7 100644
>> --- a/drivers/gpu/drm/msm/dp/dp_display.c
>> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
>> @@ -29,6 +29,7 @@
>>   #include "dp_drm.h"
>>   #include "dp_audio.h"
>>   #include "dp_debug.h"
>> +#include "dp_mst_drm.h"
>>   
>>   static bool psr_enabled = false;
>>   module_param(psr_enabled, bool, 0);
>> @@ -420,6 +421,17 @@ static void msm_dp_display_mst_init(struct msm_dp_display_private *dp)
>>   	msm_dp->mst_active = true;
>>   }
>>   
>> +static void msm_dp_display_set_mst_mgr_state(struct msm_dp_display_private *dp,
>> +					     bool state)
>> +{
>> +	if (!dp->msm_dp_display.mst_active)
>> +		return;
>> +
>> +	msm_dp_mst_display_set_mgr_state(&dp->msm_dp_display, state);
>> +
>> +	drm_dbg_dp(dp->drm_dev, "mst_mgr_state: %d\n", state);
> 
> Yet-another-oneliner? Noooo. Really, no.
> 
Got it. Will remove it and call msm_dp_mst_display_set_mgr_state directly.
>> +}
>> +
>>   static int msm_dp_display_process_hpd_high(struct msm_dp_display_private *dp)
>>   {
>>   	struct drm_connector *connector = dp->msm_dp_display.connector;
>