Enable the GAMMA_LUT KMS property using the framework helpers to register the property and set the associated gamma table maximum size.
Reviewed-by: Kieran Bingham kieran.bingham+renesas@ideasonboard.com Reviewed-by: Ulrich Hecht uli+renesas@fpond.eu Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org --- 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 4bc50a3f4a00..603f9f716721 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -1154,6 +1154,7 @@ 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, };
/* ----------------------------------------------------------------------------- @@ -1277,6 +1278,9 @@ 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, CM2_LUT_SIZE); + drm_crtc_enable_color_mgmt(crtc, 0, false, CM2_LUT_SIZE); }
drm_crtc_helper_add(crtc, &crtc_helper_funcs);