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>
}
crtc = obj_to_crtc(obj);
}
crtc = obj_to_crtc(obj);
+ if (crtc->funcs->gamma_set == NULL) {
+ ret = -ENOSYS;
+ goto out;
+ }
+
/* memcpy into gamma store */
if (crtc_lut->gamma_size != crtc->gamma_size) {
ret = -EINVAL;
/* memcpy into gamma store */
if (crtc_lut->gamma_size != crtc->gamma_size) {
ret = -EINVAL;
{
uint16_t *r_base, *g_base, *b_base;
{
uint16_t *r_base, *g_base, *b_base;
+ if (crtc->funcs->gamma_set == NULL)
+ return;
+
r_base = crtc->gamma_store;
g_base = r_base + crtc->gamma_size;
b_base = g_base + crtc->gamma_size;
r_base = crtc->gamma_store;
g_base = r_base + crtc->gamma_size;
b_base = g_base + crtc->gamma_size;
struct drm_framebuffer *old_fb;
};
struct drm_framebuffer *old_fb;
};
-static void omap_crtc_gamma_set(struct drm_crtc *crtc,
- u16 *red, u16 *green, u16 *blue, uint32_t start, uint32_t size)
-{
- /* not supported.. at least not yet */
-}
-
static void omap_crtc_destroy(struct drm_crtc *crtc)
{
struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
static void omap_crtc_destroy(struct drm_crtc *crtc)
{
struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
}
static const struct drm_crtc_funcs omap_crtc_funcs = {
}
static const struct drm_crtc_funcs omap_crtc_funcs = {
- .gamma_set = omap_crtc_gamma_set,
.set_config = drm_crtc_helper_set_config,
.destroy = omap_crtc_destroy,
.page_flip = omap_crtc_page_flip_locked,
.set_config = drm_crtc_helper_set_config,
.destroy = omap_crtc_destroy,
.page_flip = omap_crtc_page_flip_locked,