linux-kernel - Re: [v2 2/2] i2c: mediatek: Add i2c compatible for Mediatek MT8186

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Date:   Tue, 25 Jan 2022 19:27:44 +0800
From:   Qii Wang <qii.wang@...iatek.com>
To:     Kewei Xu <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>,
        <srv_heupstream@...iatek.com>, <leilk.liu@...iatek.com>,
        <liguo.zhang@...iatek.com>, <caiyu.chen@...iatek.com>,
        <housong.zhang@...iatek.com>, <yuhan.wei@...iatek.com>,
        <ryan-jh.yu@...iatek.com>
Subject: Re: [v2 2/2] i2c: mediatek: Add i2c compatible for Mediatek MT8186

On Tue, 2022-01-25 at 19:04 +0800, Kewei Xu wrote:
> Add i2c compatible for MT8186. Compare to MT8192 i2c controller,
> MT8186 doesn't need handshake signal witch apdma.
> 
> Signed-off-by: Kewei Xu <kewei.xu@...iatek.com>

Reviewed-by: Qii Wang <qii.wang@...iatek.com>

> ---
>  drivers/i2c/busses/i2c-mt65xx.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-mt65xx.c
> b/drivers/i2c/busses/i2c-mt65xx.c
> index 9ea427f53083..aa4d21838e14 100644
> --- a/drivers/i2c/busses/i2c-mt65xx.c
> +++ b/drivers/i2c/busses/i2c-mt65xx.c
> @@ -397,6 +397,19 @@ static const struct mtk_i2c_compatible
> mt8183_compat = {
>  	.max_dma_support = 33,
>  };
>  
> +static const struct mtk_i2c_compatible mt8186_compat = {
> +	.regs = mt_i2c_regs_v2,
> +	.pmic_i2c = 0,
> +	.dcm = 0,
> +	.auto_restart = 1,
> +	.aux_len_reg = 1,
> +	.timing_adjust = 1,
> +	.dma_sync = 0,
> +	.ltiming_adjust = 1,
> +	.apdma_sync = 0,
> +	.max_dma_support = 36,
> +};
> +
>  static const struct mtk_i2c_compatible mt8192_compat = {
>  	.quirks = &mt8183_i2c_quirks,
>  	.regs = mt_i2c_regs_v2,
> @@ -418,6 +431,7 @@ static const struct of_device_id
> mtk_i2c_of_match[] = {
>  	{ .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat
> },
>  	{ .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat
> },
>  	{ .compatible = "mediatek,mt8183-i2c", .data = &mt8183_compat
> },
> +	{ .compatible = "mediatek,mt8186-i2c", .data = &mt8186_compat
> },
>  	{ .compatible = "mediatek,mt8192-i2c", .data = &mt8192_compat
> },
>  	{}
>  };