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Subject[PATCH v6 6/8] drm: rcar-du: crtc: Register GAMMA_LUT properties
Date
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 d7ad491577f3..a0a512b81aed 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -1130,6 +1130,7 @@ 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,
};

/* -----------------------------------------------------------------------------
@@ -1253,6 +1254,9 @@ 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);
--
2.23.0
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