Re: [PATCH 03/18] drm/i915: Add atomic get property interface for CRTC

["Sharma, Shashank" <shashank.sharma@intel.com>]

Thanks for the review Matt.

Regards
Shashank
On 8/22/2015 4:10 AM, Matt Roper wrote:
> On Thu, Aug 06, 2015 at 10:08:12PM +0530, Shashank Sharma wrote:
>> From: Kausal Malladi <kausalmalladi@gmail.com>
>>
>> This patch adds atomic get property interface for Intel CRTC. This
>> interface will be used for get operation on any non-core DRM properties.
>>
>> Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
>> Signed-off-by: Kausal Malladi <kausalmalladi@gmail.com>
>> ---
>>   drivers/gpu/drm/i915/intel_atomic.c  | 8 ++++++++
>>   drivers/gpu/drm/i915/intel_display.c | 1 +
>>   drivers/gpu/drm/i915/intel_drv.h     | 4 ++++
>>   3 files changed, 13 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
>> index 922fecf..8d04ee8 100644
>> --- a/drivers/gpu/drm/i915/intel_atomic.c
>> +++ b/drivers/gpu/drm/i915/intel_atomic.c
>> @@ -327,3 +327,11 @@ int intel_crtc_atomic_set_property(struct drm_crtc *crtc,
>>   	DRM_DEBUG_KMS("Unknown crtc property '%s'\n", property->name);
>>   	return -EINVAL;
>>   }
>> +
>> +int intel_crtc_atomic_get_property(struct drm_crtc *crtc,
>> +				   const struct drm_crtc_state *state,
>> +				   struct drm_property *property,
>> +				   uint64_t *val)
>> +{
>> +	return 0;
>
> I think this should be -EINVAL since it's an unrecognized property.
> Probably add a DRM_DEBUG_KMS() message here like we have in
> intel_plane_atomic_get_property() as well.
>
>
> Matt
Got it.
>
>> +}
>> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>> index 1fbf0ff..1412e21 100644
>> --- a/drivers/gpu/drm/i915/intel_display.c
>> +++ b/drivers/gpu/drm/i915/intel_display.c
>> @@ -13353,6 +13353,7 @@ static const struct drm_crtc_funcs intel_crtc_funcs = {
>>   	.page_flip = intel_crtc_page_flip,
>>   	.set_property = drm_atomic_helper_crtc_set_property,
>>   	.atomic_set_property = intel_crtc_atomic_set_property,
>> +	.atomic_get_property = intel_crtc_atomic_get_property,
>>   	.atomic_duplicate_state = intel_crtc_duplicate_state,
>>   	.atomic_destroy_state = intel_crtc_destroy_state,
>>   };
>> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
>> index c0ae529..b3dc138 100644
>> --- a/drivers/gpu/drm/i915/intel_drv.h
>> +++ b/drivers/gpu/drm/i915/intel_drv.h
>> @@ -1426,6 +1426,10 @@ int intel_crtc_atomic_set_property(struct drm_crtc *plane,
>>   				   struct drm_crtc_state *state,
>>   				   struct drm_property *property,
>>   				   uint64_t val);
>> +int intel_crtc_atomic_get_property(struct drm_crtc *plane,
>> +				   const struct drm_crtc_state *state,
>> +				   struct drm_property *property,
>> +				   uint64_t *val);
>>
>>   /* intel_atomic_plane.c */
>>   struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
>> --
>> 1.9.1
>>
>
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