diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2016-06-07 12:49:30 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-07 15:30:09 +0200 |
| commit | 7ea7728387820a21a89a7c3845dbe60926f82dc4 (patch) | |
| tree | ec2bca8d99101cbd833d1ea63f7ca4269322dcbe /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | ddac4b5a6c08f8800002517ea5352b3eb9451cfc (diff) | |
drm/core: Change declaration for gamma_set.
Change return value to int to propagate errors from gamma_set,
and remove start parameter. Updates always use the full size,
and some drivers even ignore the start parameter altogether.
This is needed for atomic drivers, where an atomic commit can
fail with -EINTR or -ENOMEM and should be restarted. This is already
and issue for drm_atomic_helper_legacy_set_gamma, which this patch
fixes up.
Changes since v1:
- Fix compiler warning. (Emil)
- Fix commit message (Daniel)
Cc: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Mathieu Larouche <mathieu.larouche@matrox.com>
Cc: Thierry Reding <treding@nvidia.com>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
[danvet: Improve commit message a bit more, mention that this fixes
the helper.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/742944bc-9f41-1acb-df4f-0fd4c8a10168@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 2fb18f13395c..e85c7a2f565b 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -231,19 +231,21 @@ void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, *blue = radeon_crtc->lut_b[regno] << 6; } -static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, - u16 *blue, uint32_t start, uint32_t size) +static int radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, + u16 *blue, uint32_t size) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); - int end = (start + size > 256) ? 256 : start + size, i; + int i; /* userspace palettes are always correct as is */ - for (i = start; i < end; i++) { + for (i = 0; i < size; i++) { radeon_crtc->lut_r[i] = red[i] >> 6; radeon_crtc->lut_g[i] = green[i] >> 6; radeon_crtc->lut_b[i] = blue[i] >> 6; } radeon_crtc_load_lut(crtc); + + return 0; } static void radeon_crtc_destroy(struct drm_crtc *crtc) @@ -688,6 +690,7 @@ radeon_crtc_set_config(struct drm_mode_set *set) pm_runtime_put_autosuspend(dev->dev); return ret; } + static const struct drm_crtc_funcs radeon_crtc_funcs = { .cursor_set2 = radeon_crtc_cursor_set2, .cursor_move = radeon_crtc_cursor_move, |