Enable the GAMMA_LUT KMS property using the framework helpers to
register the proeprty and the associated gamma table size maximum size.
Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index 3dac605c3a67..222ccc20d6d8 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -1082,6 +1082,7 @@ static const struct drm_crtc_funcs crtc_funcs_gen3 = {
.set_crc_source = rcar_du_crtc_set_crc_source,
.verify_crc_source = rcar_du_crtc_verify_crc_source,
.get_crc_sources = rcar_du_crtc_get_crc_sources,
+ .gamma_set = drm_atomic_helper_legacy_gamma_set,
};
/* -----------------------------------------------------------------------------
@@ -1205,6 +1206,9 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex,
if (rcdu->cmms[swindex]) {
rcrtc->cmm = rcdu->cmms[swindex];
rgrp->cmms_mask |= BIT(hwindex % 2);
+
+ drm_mode_crtc_set_gamma_size(crtc, CMM_GAMMA_LUT_SIZE);
+ drm_crtc_enable_color_mgmt(crtc, 0, false, CMM_GAMMA_LUT_SIZE);
}
drm_crtc_helper_add(crtc, &crtc_helper_funcs);
--
2.21.0
