linux-kernel - Re: [PATCH v2 2/2] spi: mediatek: add spi support for mt8192 IC

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Message-ID: <27e48721-5e54-6947-cd8f-669f4da34c4d@gmail.com>
Date:   Wed, 22 Jul 2020 00:44:49 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Leilk Liu <leilk.liu@...iatek.com>, Mark Brown <broonie@...nel.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-spi@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2 2/2] spi: mediatek: add spi support for mt8192 IC



On 21/07/2020 14:24, Leilk Liu wrote:
> From: "leilk.liu" <leilk.liu@...iatek.com>
> 
> This patch add spi support for mt8192 IC.
> 
> Signed-off-by: leilk.liu <leilk.liu@...iatek.com>
> ---
>   drivers/spi/spi-mt65xx.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
> index 6783e12c40c2..3d0d69fe0c69 100644
> --- a/drivers/spi/spi-mt65xx.c
> +++ b/drivers/spi/spi-mt65xx.c
> @@ -170,6 +170,9 @@ static const struct of_device_id mtk_spi_of_match[] = {
>   	{ .compatible = "mediatek,mt8183-spi",
>   		.data = (void *)&mt8183_compat,
>   	},
> +	{ .compatible = "mediatek,mt8192-spi",
> +		.data = (void *)&mt6765_compat,
> +	},

That's not needed. We will use the fallback compatible which is 
"mediatek,mt6765-spi" which will take the correct DT data. If in the future we 
realize that mt8192 has a difference in the HW we can add the compatible. 
Otherwise with the binding description we should be fine

>   	{}
>   };
>   MODULE_DEVICE_TABLE(of, mtk_spi_of_match);
>