linux-kernel - Re: [PATCH v2 1/2] soc: mediatek: pwrap: add pwrap driver for MT8186 SoC

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Message-ID: <9949a1f7-1ed5-a137-c7b9-2ef8d8e1caf8@gmail.com>
Date:   Fri, 14 Jan 2022 16:46:41 +0100
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Johnson Wang <johnson.wang@...iatek.com>, robh+dt@...nel.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        angelogioacchino.delregno@...labora.com,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v2 1/2] soc: mediatek: pwrap: add pwrap driver for MT8186
 SoC



On 07/01/2022 11:46, Johnson Wang wrote:
> MT8186 are highly integrated SoC and use PMIC_MT6366 for
> power management. This patch adds pwrap master driver to
> access PMIC_MT6366.
> 

It seems this new arbiter is significantly different from the version 1. Please 
explain that in the commit message.

> Signed-off-by: Johnson Wang <johnson.wang@...iatek.com>
> ---
>   drivers/soc/mediatek/mtk-pmic-wrap.c | 72 ++++++++++++++++++++++++++++
>   1 file changed, 72 insertions(+)
> 
> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
> index 952bc554f443..78866ebf7f04 100644
> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
> @@ -30,6 +30,7 @@
>   #define PWRAP_GET_WACS_REQ(x)		(((x) >> 19) & 0x00000001)
>   #define PWRAP_STATE_SYNC_IDLE0		BIT(20)
>   #define PWRAP_STATE_INIT_DONE0		BIT(21)
> +#define PWRAP_STATE_INIT_DONE0_V2	BIT(22)

That's a strange name, does it come from the datasheet description?

>   #define PWRAP_STATE_INIT_DONE1		BIT(15)
>   
>   /* macro for WACS FSM */
> @@ -77,6 +78,8 @@
>   #define PWRAP_CAP_INT1_EN	BIT(3)
>   #define PWRAP_CAP_WDT_SRC1	BIT(4)
>   #define PWRAP_CAP_ARB		BIT(5)
> +#define PWRAP_CAP_MONITOR_V2	BIT(6)

Not used capability, please delete.


Regards,
Matthias