Backmerge tag 'v4.7-rc2' into drm-next

[cascardo/linux.git] / drivers / gpu / drm / drm_crtc.c

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 0e3cc66..1e28eee 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -5138,6 +5138,9 @@ EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
                                 int gamma_size)
 {
+       uint16_t *r_base, *g_base, *b_base;
+       int i;
+
        crtc->gamma_size = gamma_size;
 
        crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3,
@@ -5147,6 +5150,16 @@ int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
                return -ENOMEM;
        }
 
+       r_base = crtc->gamma_store;
+       g_base = r_base + gamma_size;
+       b_base = g_base + gamma_size;
+       for (i = 0; i < gamma_size; i++) {
+               r_base[i] = i << 8;
+               g_base[i] = i << 8;
+               b_base[i] = i << 8;
+       }
+
+
        return 0;
 }
 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);