[PATCH 04/22] drm: Add set property support for color manager

[Sharma, Shashank]

Regards
Shashank

On 10/10/2015 3:55 AM, Emil Velikov wrote:
> Hi Shashank,
>
> On 9 October 2015 at 20:28, Shashank Sharma <shashank.sharma at intel.com> wrote:
>> As per DRM color manager design, if a userspace wants to set a correction
>> blob, it prepares it and sends the blob_id to kernel via set_property
>> call. DRM framework takes this blob_id, gets the blob, and saves it
>> in the CRTC state, so that, during the atomic_commit, the color correction
>> values from the blob can referred and applied on display controller
>> registers.
>>
>> This patch adds this set_property support for color correction blobs
>> in drm framework.
>>
>> Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
>> Signed-off-by: Kausal malladi <kausalmalladi at gmail.com>
>> ---
>>   drivers/gpu/drm/drm_atomic.c | 53 ++++++++++++++++++++++++++++++++++++++++++--
>>   1 file changed, 51 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
>> index 7bb3845..0b286d2 100644
>> --- a/drivers/gpu/drm/drm_atomic.c
>> +++ b/drivers/gpu/drm/drm_atomic.c
>> @@ -390,6 +390,38 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
>>   EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc);
>>
>>   /**
>> + * drm_atomic_crtc_set_blob - find and set a blob
>> + * @state_blob: reference pointer to the color blob in the crtc_state
>> + * @blob_id: blob_id coming from set_property() call
>> + *
>> + * Set a color correction blob (originating from a set blob property) on the
>> + * desired CRTC state. This function will take reference of the blob property
>> + * in the CRTC state, finds the blob based on blob_id (which comes from
>> + * set_property call) and set the blob at the proper place.
>> + *
>> + * RETURNS:
>> + * Zero on success, error code on failure.
>> + */
>> +int drm_atomic_crtc_set_blob(struct drm_device *dev,
>> +       struct drm_property_blob **state_blob, uint32_t blob_id)
> You are missing the function declaration. Set it as static perhaps ?
>
Yes, This was meant to be used internally, I can make it static.
> Regards,
> Emil
>