Re: [PATCH v14 05/10] drm/mediatek: Add MT8195 Embedded DisplayPort driver

Rex-BC Chen
2022-07-14T08:57:23Z

On Wed, 2022-07-13 at 17:33 +0800, CK Hu wrote:
> Hi, Bo-Chen:
>
> On Tue, 2022-07-12 at 19:12 +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_aux_fill_write_fifo(struct mtk_dp *mtk_dp, u8
> > *buf,
> > + size_t length)
> > +{
> > + mtk_dp_bulk_16bit_write(mtk_dp, MTK_DP_AUX_P0_3708, buf,
> > length);
>
> mtk_dp_aux_fill_write_fifo() directly call mtk_dp_bulk_16bit_write(),
> so I think we could just keep one of them and drop another one.
>

Hello CK,

mtk_dp_bulk_16bit_write() will also be used in following patches.
I want to keep the driver like this.

BRs,
Bo-Chen
> Regards,
> CK
>
> > +}
> > +
>
>