linux-kernel - Re: [RESEND v4 2/2] i2c: mediatek: Add i2c compatible for Mediatek MT8188

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Message-ID: <4ee027c3-fbfb-52dd-fa38-74dcff526bf5@collabora.com>
Date:   Fri, 8 Jul 2022 10:13:29 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     kewei.xu@...iatek.com, wsa@...-dreams.de
Cc:     matthias.bgg@...il.com, robh+dt@...nel.org,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, leilk.liu@...iatek.com,
        qii.wang@...iatek.com, liguo.zhang@...iatek.com,
        caiyu.chen@...iatek.com, housong.zhang@...iatek.com,
        yuhan.wei@...iatek.com, david-yh.chiu@...iatek.com,
        liju-clr.chen@...iatek.com
Subject: Re: [RESEND v4 2/2] i2c: mediatek: Add i2c compatible for Mediatek
 MT8188

Il 08/07/22 05:47, kewei.xu@...iatek.com ha scritto:
> From: Kewei Xu <kewei.xu@...iatek.com>
> 
> Add i2c compatible for MT8188. Compare to MT8192 i2c controller,
> The MT8188 i2c OFFSET_SLAVE_ADDR register changed from 0x04 to 0x94.
> 
> Signed-off-by: Kewei Xu <kewei.xu@...iatek.com>
> ---
> v4: no changes
> V3: no changes
> V2: added mt_i2c_regs_v3[] to replace slave_addr_version.
> ---
>   drivers/i2c/busses/i2c-mt65xx.c | 43 +++++++++++++++++++++++++++++++++
>   1 file changed, 43 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
> index 8e6985354fd5..70aff42adf5d 100644
> --- a/drivers/i2c/busses/i2c-mt65xx.c
> +++ b/drivers/i2c/busses/i2c-mt65xx.c
> @@ -229,6 +229,35 @@ static const u16 mt_i2c_regs_v2[] = {
>   	[OFFSET_DCM_EN] = 0xf88,
>   };
>   
> +static const u16 mt_i2c_regs_v3[] = {
> +	[OFFSET_DATA_PORT] = 0x0,

> +	[OFFSET_SLAVE_ADDR] = 0x94,

Please keep this list ordered by register offset.

> +	[OFFSET_INTR_MASK] = 0x8,
> +	[OFFSET_INTR_STAT] = 0xc,
> +	[OFFSET_CONTROL] = 0x10,
> +	[OFFSET_TRANSFER_LEN] = 0x14,
> +	[OFFSET_TRANSAC_LEN] = 0x18,
> +	[OFFSET_DELAY_LEN] = 0x1c,
> +	[OFFSET_TIMING] = 0x20,
> +	[OFFSET_START] = 0x24,
> +	[OFFSET_EXT_CONF] = 0x28,
> +	[OFFSET_LTIMING] = 0x2c,
> +	[OFFSET_HS] = 0x30,
> +	[OFFSET_IO_CONFIG] = 0x34,
> +	[OFFSET_FIFO_ADDR_CLR] = 0x38,
> +	[OFFSET_SDA_TIMING] = 0x3c,
> +	[OFFSET_TRANSFER_LEN_AUX] = 0x44,
> +	[OFFSET_CLOCK_DIV] = 0x48,
> +	[OFFSET_SOFTRESET] = 0x50,
> +	[OFFSET_MULTI_DMA] = 0x8c,
> +	[OFFSET_SCL_MIS_COMP_POINT] = 0x90,

[OFFSET_SLAVE_ADDR] = 0x94   goes here,

after which:

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>