diff options
author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2012-05-17 07:27:24 -0400 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2012-05-22 05:35:15 -0400 |
commit | ebe0f2442cc4c5493a85c875d2d8a44ffecc1175 (patch) | |
tree | f9ce0f9183ee558c766916f9b0709e8220242b37 /drivers/gpu/drm/drm_crtc.c | |
parent | e6ecefaadfcdb03db8ac9e739b4ba7a93a8811b3 (diff) |
drm: Make the CRTC gamma_set operation optional
Drivers for hardware without gamma support should not be forced to
implement a no-op gamma set operation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
-rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 404597e8150a..6cb47d9f0ca2 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c | |||
@@ -3332,6 +3332,11 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev, | |||
3332 | } | 3332 | } |
3333 | crtc = obj_to_crtc(obj); | 3333 | crtc = obj_to_crtc(obj); |
3334 | 3334 | ||
3335 | if (crtc->funcs->gamma_set == NULL) { | ||
3336 | ret = -ENOSYS; | ||
3337 | goto out; | ||
3338 | } | ||
3339 | |||
3335 | /* memcpy into gamma store */ | 3340 | /* memcpy into gamma store */ |
3336 | if (crtc_lut->gamma_size != crtc->gamma_size) { | 3341 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
3337 | ret = -EINVAL; | 3342 | ret = -EINVAL; |