diff options
| author | James Simmons | 2010-08-03 01:33:19 +0100 |
|---|---|---|
| committer | Dave Airlie | 2010-08-10 10:47:00 +1000 |
| commit | 7203425a943eb3e189ba6b512827e0deb5f23872 (patch) | |
| tree | e0fdc7ed583f6990bbffde67f4f45b1f11b5a39e /drivers/gpu/drm/radeon | |
| parent | 38fcbb674d7cc37b38473a89e8045ee80364e4f9 (diff) | |
drm: expand gamma_set
Expand the crtc_gamma_set function to accept a starting offset. The
reason for this is to eventually use this function for setcolreg from
drm_fb_helper.c. The fbdev colormap function can start at any offset in
the color map.
Signed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 6130ec9ed502..5764f4d3b4f1 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -161,17 +161,13 @@ void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, } static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, - u16 *blue, uint32_t size) + u16 *blue, uint32_t start, uint32_t size) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); - int i; - - if (size != 256) { - return; - } + int end = (start + size > 256) ? 256 : start + size, i; /* userspace palettes are always correct as is */ - for (i = 0; i < 256; i++) { + for (i = start; i < end; 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; |