linux-kernel - Re: [PATCH 8/8] spi: Make SPI_S3C64XX=y impossible when EXYNOS_USI

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Date:   Mon, 29 Nov 2021 02:02:13 +0200
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Jaewon Kim <jaewon02.kim@...sung.com>,
        Chanho Park <chanho61.park@...sung.com>,
        David Virag <virag.david003@...il.com>,
        Youngmin Nam <youngmin.nam@...sung.com>,
        devicetree@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-i2c@...r.kernel.org
Subject: Re: [PATCH 8/8] spi: Make SPI_S3C64XX=y impossible when EXYNOS_USI_V2=m

On Sun, 28 Nov 2021 at 00:33, Sam Protsenko <semen.protsenko@...aro.org> wrote:
>
> When S3C64XX SPI is encapsulated in USIv2 block (e.g. in Exynos850),
> USIv2 driver must be loaded first, as it's preparing USI hardware for
> particular protocol use. Make it impossible for spi-s3c64xx driver to be
> built-in when USIv2 driver is built as a module, to prevent incorrect
> booting order for those drivers.
>
> Signed-off-by: Sam Protsenko <semen.protsenko@...aro.org>
> ---

This patch is not needed, please ignore it.

>  drivers/spi/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index b2a8821971e1..fbdf901248be 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -761,6 +761,7 @@ config SPI_S3C24XX_FIQ
>  config SPI_S3C64XX
>         tristate "Samsung S3C64XX/Exynos SoC series type SPI"
>         depends on (PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST)
> +       depends on EXYNOS_USI_V2 || !EXYNOS_USI_V2
>         help
>           SPI driver for Samsung S3C64XX, S5Pv210 and Exynos SoCs.
>           Choose Y/M here only if you build for such Samsung SoC.
> --
> 2.30.2
>