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Subject: Re: [PATCH 3/4] drm/meson: Enable DRM InfoFrame support on GXL, GXM
 and G12A
To:     Jonas Karlman <jonas@kwiboo.se>,
        "Laurent.pinchart@ideasonboard.com" 
        <Laurent.pinchart@ideasonboard.com>
Cc:     "jernej.skrabec@siol.net" <jernej.skrabec@siol.net>,
        "narmstrong@baylibre.com" <narmstrong@baylibre.com>,
        "khilman@baylibre.com" <khilman@baylibre.com>,
        "zhengyang@rock-chips.com" <zhengyang@rock-chips.com>,
        "maxime.ripard@bootlin.com" <maxime.ripard@bootlin.com>,
        "wens@csie.org" <wens@csie.org>,
        "hjc@rock-chips.com" <hjc@rock-chips.com>,
        "heiko@sntech.de" <heiko@sntech.de>,
        "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
From:   Andrzej Hajda <a.hajda@samsung.com>
Message-ID: <bdc1746a-5829-9991-6f1c-d66f03c95d77@samsung.com>
Date:   Mon, 24 Jun 2019 16:59:44 +0200
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On 26.05.2019 23:20, Jonas Karlman wrote:
> This patch enables Dynamic Range and Mastering InfoFrame on GXL, GXM and G12A.
>
> Cc: Neil Armstrong <narmstrong@baylibre.com>
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> ---
>  drivers/gpu/drm/meson/meson_dw_hdmi.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
> index df3f9ddd2234..f7761e698c03 100644
> --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
> +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
> @@ -966,6 +966,11 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master,
>  	dw_plat_data->input_bus_format = MEDIA_BUS_FMT_YUV8_1X24;
>  	dw_plat_data->input_bus_encoding = V4L2_YCBCR_ENC_709;
>  
> +	if (dw_hdmi_is_compatible(meson_dw_hdmi, "amlogic,meson-gxl-dw-hdmi") ||
> +	    dw_hdmi_is_compatible(meson_dw_hdmi, "amlogic,meson-gxm-dw-hdmi") ||
> +	    dw_hdmi_is_compatible(meson_dw_hdmi, "amlogic,meson-g12a-dw-hdmi"))
> +		dw_plat_data->drm_infoframe = true;
> +


I see it follows meson_dw_hdmi.c practices, but maybe it is time to drop
it and just add flag to meson_dw_hdmi_data, IMO the whole
dw_hdmi_is_compatible function should be removed

and replaced with fields/flags in meson_dw_hdmi_data - this is what
of_device_id.data field was created for.


Regards

Andrzej


>  	platform_set_drvdata(pdev, meson_dw_hdmi);
>  
>  	meson_dw_hdmi->hdmi = dw_hdmi_bind(pdev, encoder,