Re: [PATCH v11 05/10] drm/mediatek: Add MT8195 Embedded DisplayPort driver

From: CK Hu
Date: Tue Jun 21 2022 - 02:12:34 EST


Hi, Bo-Chen:

On Fri, 2022-06-10 at 18:55 +0800, Bo-Chen Chen wrote:
> From: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>
>
> 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@xxxxxxxxxxxx>
>
> Signed-off-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>
> Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>
> [Bo-Chen: Cleanup the drivers and modify comments from reviewers]
> Signed-off-by: Bo-Chen Chen <rex-bc.chen@xxxxxxxxxxxx>
> ---

[snip]

> +
> +#define MTK_DP_ENC0_P0_3130 (ENC0_OFFSET + 0x130)

This is useless in this patch, so remove it.
If this is used in later patch, add this back in that patch.

> +#define MTK_DP_ENC0_P0_3138 (ENC0_OFFSET + 0x138)

Ditto.

Regards,
CK

> +#define MTK_DP_ENC0_P0_3154 (ENC0_OFFSET + 0x154)
> +#define PGEN_HTOTAL_DP_ENC0_P0_MASK GENMASK(13, 0)
> +#define MTK_DP_ENC0_P0_3158 (ENC0_OFFSET + 0x158)
>