[PATCH 9/9] drm/amd/display: Implement MST Aux device registration

[Li, Sun peng (Leo)]

On 2019-07-24 4:05 p.m., Kazlauskas, Nicholas wrote:
> On 7/23/19 7:28 PM, sunpeng.li at amd.com wrote:
>> From: Leo Li <sunpeng.li at amd.com>
>>
>> Implement late_register and early_unregister hooks for MST connectors.
>> Call drm helpers for MST connector registration, which registers the
>> AUX devices.
>>
>> Cc: Jerry Zuo <Jerry.Zuo at amd.com>
>> Cc: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
>> Cc: Harry Wentland <harry.wentland at amd.com>
>> Signed-off-by: Leo Li <sunpeng.li at amd.com>
> 
> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
> 
> BTW: I already reviewed patch 5, feel free to add my R-B.
> 
> Nicholas Kazlauskas

Sorry, will do.

Thanks!
Leo

> 
>> ---
>>   .../display/amdgpu_dm/amdgpu_dm_mst_types.c   | 24 ++++++++++++++++++-
>>   1 file changed, 23 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
>> index 53d2cfe62e13..16218a202b59 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
>> @@ -156,6 +156,26 @@ dm_dp_mst_connector_destroy(struct drm_connector *connector)
>>   	kfree(amdgpu_dm_connector);
>>   }
>>   
>> +static int
>> +amdgpu_dm_mst_connector_late_register(struct drm_connector *connector)
>> +{
>> +	struct amdgpu_dm_connector *amdgpu_dm_connector =
>> +		to_amdgpu_dm_connector(connector);
>> +	struct drm_dp_mst_port *port = amdgpu_dm_connector->port;
>> +
>> +	return drm_dp_mst_connector_late_register(connector, port);
>> +}
>> +
>> +static void
>> +amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
>> +{
>> +	struct amdgpu_dm_connector *amdgpu_dm_connector =
>> +		to_amdgpu_dm_connector(connector);
>> +	struct drm_dp_mst_port *port = amdgpu_dm_connector->port;
>> +
>> +	drm_dp_mst_connector_early_unregister(connector, port);
>> +}
>> +
>>   static const struct drm_connector_funcs dm_dp_mst_connector_funcs = {
>>   	.detect = dm_dp_mst_detect,
>>   	.fill_modes = drm_helper_probe_single_connector_modes,
>> @@ -164,7 +184,9 @@ static const struct drm_connector_funcs dm_dp_mst_connector_funcs = {
>>   	.atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
>>   	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
>>   	.atomic_set_property = amdgpu_dm_connector_atomic_set_property,
>> -	.atomic_get_property = amdgpu_dm_connector_atomic_get_property
>> +	.atomic_get_property = amdgpu_dm_connector_atomic_get_property,
>> +	.late_register = amdgpu_dm_mst_connector_late_register,
>> +	.early_unregister = amdgpu_dm_mst_connector_early_unregister,
>>   };
>>   
>>   static int dm_dp_mst_get_modes(struct drm_connector *connector)
>>
>