linux-kernel - Re: [PATCH v6 06/16] soc: mediatek: add mtk-mmsys support for mt8195 vdosys1

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Message-ID: <c6dd417c-a575-8054-9d10-d56d925ec6bc@collabora.com>
Date:   Thu, 14 Oct 2021 16:52:18 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     "Nancy.Lin" <nancy.lin@...iatek.com>, CK Hu <ck.hu@...iatek.com>
Cc:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "jason-jh . lin" <jason-jh.lin@...iatek.com>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        singo.chang@...iatek.com, srv_heupstream@...iatek.com
Subject: Re: [PATCH v6 06/16] soc: mediatek: add mtk-mmsys support for mt8195
 vdosys1

> Add mt8195 vdosys1 clock driver name and routing table to
> the driver data of mtk-mmsys.
> 
> Signed-off-by: Nancy.Lin <nancy.lin@...iatek.com>
> ---
>   drivers/soc/mediatek/mt8195-mmsys.h    | 136 +++++++++++++++++++++++++
>   drivers/soc/mediatek/mtk-mmsys.c       |  10 ++
>   include/linux/soc/mediatek/mtk-mmsys.h |   2 +
>   3 files changed, 148 insertions(+)
> 
> diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h
> index 0c97a5f016c1..f19ec72c1243 100644
> --- a/drivers/soc/mediatek/mt8195-mmsys.h
> +++ b/drivers/soc/mediatek/mt8195-mmsys.h
> @@ -59,6 +59,70 @@
>   #define MT8195_SOUT_DSC_WRAP1_OUT_TO_SINA_VIRTUAL0		(2 << 16)
>   #define MT8195_SOUT_DSC_WRAP1_OUT_TO_VPP_MERGE			(3 << 16)
>   
> +#define MT8195_VDO1_VPP_MERGE0_P0_SEL_IN			0xf04
> +#define MT8195_VPP_MERGE0_P0_SEL_IN_FROM_MDP_RDMA0		(1 << 0)

There is no bitshifting action here: this is simply 1.

> +
> +#define MT8195_VDO1_VPP_MERGE0_P1_SEL_IN			0xf08
> +#define MT8195_VPP_MERGE0_P1_SEL_IN_FROM_MDP_RDMA1		(1 << 0)

Same here.

> +
> +#define MT8195_VDO1_DISP_DPI1_SEL_IN				0xf10
> +#define MT8195_DISP_DPI1_SEL_IN_FROM_VPP_MERGE4_MOUT		(0 << 0)

And this is 0.

> +
> +#define MT8195_VDO1_DISP_DP_INTF0_SEL_IN			0xf14
> +#define MT8195_DISP_DP_INTF0_SEL_IN_FROM_VPP_MERGE4_MOUT	(0 << 0)
> +
> +#define MT8195_VDO1_MERGE4_SOUT_SEL				0xf18
> +#define MT8195_MERGE4_SOUT_TO_DPI1_SEL				(2 << 0)

This is simply 0x2...

> +#define MT8195_MERGE4_SOUT_TO_DP_INTF0_SEL			(3 << 0)

...and this is 0x3.

There are other occurrences of the same logic, so please fix them all.

Regards,
- Angelo