linux-kernel - Re: [PATCH v4 7/9] drm: rcar-du: crtc: Register GAMMA

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Message-ID: <26faa0ef-c32b-df4c-a68b-ed4994aff1b0@ideasonboard.com>
Date:   Wed, 11 Sep 2019 19:47:38 +0100
From:   Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
To:     Jacopo Mondi <jacopo+renesas@...ndi.org>,
        laurent.pinchart@...asonboard.com, geert@...ux-m68k.org,
        horms@...ge.net.au, uli+renesas@...nd.eu,
        VenkataRajesh.Kalakodima@...bosch.com
Cc:     airlied@...ux.ie, daniel@...ll.ch, koji.matsuoka.xm@...esas.com,
        muroya@....co.jp, Harsha.ManjulaMallikarjun@...bosch.com,
        linux-renesas-soc@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 7/9] drm: rcar-du: crtc: Register GAMMA_LUT properties

Hi Jacopo,

On 06/09/2019 14:54, Jacopo Mondi wrote:
> Enable the GAMMA_LUT KMS property using the framework helpers to
> register the property and set the associated gamma table maximum size.
> 
> Reviewed-by: Ulrich Hecht <uli+renesas@...nd.eu>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

LGTM.

Reviewed-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>

> Signed-off-by: Jacopo Mondi <jacopo+renesas@...ndi.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 3dac605c3a67..dc59eeec990c 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, CM2_LUT_SIZE);
> +		drm_crtc_enable_color_mgmt(crtc, 0, false, CM2_LUT_SIZE);
>  	}
>  
>  	drm_crtc_helper_add(crtc, &crtc_helper_funcs);
>