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    Subject[PATCH v5 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 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);
    --
    2.23.0
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