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SubjectRe: [PATCH v13 05/10] drm/mediatek: Add MT8195 Embedded DisplayPort driver
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Hi, Bo-Chen:

On Fri, 2022-07-01 at 14:28 +0800, Bo-Chen Chen wrote:
> From: Markus Schneider-Pargmann <msp@baylibre.com>
>
> This patch adds a embedded displayport driver for the MediaTek mt8195
> SoC.
>
> It supports the MT8195, the embedded DisplayPort units. It offers
> DisplayPort 1.4 with up to 4 lanes.
>
> The driver creates a child device for the phy. The child device will
> never exist without the parent being active. As they are sharing a
> register range, the parent passes a regmap pointer to the child so
> that
> both can work with the same register range. The phy driver sets
> device
> data that is read by the parent to get the phy device that can be
> used
> to control the phy properties.
>
> This driver is based on an initial version by
> Jitao shi <jitao.shi@mediatek.com>
>
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> ---

[snip]

> +
> +static void mtk_dp_video_enable(struct mtk_dp *mtk_dp, bool enable)
> +{
> + if (enable) {
> + mtk_dp_set_tx_out(mtk_dp);
> + mtk_dp_video_mute(mtk_dp, false);
> + } else {
> + mtk_dp_video_mute(mtk_dp, true);

In mtk_dp_set_tx_out(), disable some function. Why not enable that
function here?

Regards,
CK

> + }
> +}
> +

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