linux-kernel - Re: [PATCH v2 08/10] drm/rockchip: analogix_dp: correct the connector display color format and bpc

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Date:	Wed, 1 Jun 2016 11:52:04 +0800
From:	Mark yao <mark.yao@...k-chips.com>
To:	Yakir Yang <ykk@...k-chips.com>, David Airlie <airlied@...ux.ie>,
	Inki Dae <inki.dae@...sung.com>, Mark Yao <yzq@...k-chips.com>,
	Thierry Reding <treding@...dia.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Rob Herring <robh+dt@...nel.org>
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	linux-samsung-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	emil.l.velikov@...il.com, Douglas Anderson <dianders@...omium.org>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Javier Martinez Canillas <javier@....samsung.com>,
	Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH v2 08/10] drm/rockchip: analogix_dp: correct the connector
 display color format and bpc

On 2016年05月24日 13:02, Yakir Yang wrote:
> Rockchip VOP couldn't output YUV video format for eDP controller, so
> when driver detect connector support YUV video format, we need to hack
> it down to RGB888.
>
> Signed-off-by: Yakir Yang <ykk@...k-chips.com>
> ---
> Changes in v2: None
>
>   drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 19 +++++++++++++++++++
>   1 file changed, 19 insertions(+)
>
> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> index f29ca3d..910cceb 100644
> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> @@ -97,6 +97,24 @@ static int rockchip_dp_powerdown(struct analogix_dp_plat_data *plat_data)
>   	return 0;
>   }
>   
> +static enum drm_mode_status
> +rockchip_dp_mode_valid(struct analogix_dp_plat_data *plat_data,
> +		       struct drm_connector *connector,
> +		       struct drm_display_mode *mode)
> +{
> +	struct drm_display_info *di = &connector->display_info;
> +
> +	if (di->color_formats & DRM_COLOR_FORMAT_YCRCB444 ||
> +	    di->color_formats & DRM_COLOR_FORMAT_YCRCB422) {
> +		di->color_formats &= ~(DRM_COLOR_FORMAT_YCRCB422 |
> +				       DRM_COLOR_FORMAT_YCRCB444);
> +		di->color_formats |= DRM_COLOR_FORMAT_RGB444;
> +		di->bpc = 8;
> +	}
> +
> +	return MODE_OK;
> +}
> +
>   static bool
>   rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder,
>   				   const struct drm_display_mode *mode,
> @@ -306,6 +324,7 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
>   	dp->plat_data.subdev_type = dp_data->chip_type;
>   	dp->plat_data.power_on = rockchip_dp_poweron;
>   	dp->plat_data.power_off = rockchip_dp_powerdown;
> +	dp->plat_data.mode_valid = rockchip_dp_mode_valid;
>   
>   	return analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);
>   }
Looks for me, So:

Acked-by: Mark Yao <mark.yao@...k-chips.com>

-- 
Ｍark Yao