linux-kernel - Re: [PATCH] [v2] spi: dw_bt1: fix MUX

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Date:   Mon, 30 Jan 2023 20:14:18 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Mark Brown <broonie@...nel.org>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Ramil Zaripov <Ramil.Zaripov@...kalelectronics.ru>,
        Arnd Bergmann <arnd@...db.de>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [v2] spi: dw_bt1: fix MUX_MMIO dependencies

On Mon, Jan 30, 2023 at 03:01:40PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> Selecting a symbol with additional dependencies requires
> adding the same dependency here:
> 
> WARNING: unmet direct dependencies detected for MUX_MMIO
>   Depends on [n]: MULTIPLEXER [=y] && OF [=n]
>   Selected by [y]:
>   - SPI_DW_BT1 [=y] && SPI [=y] && SPI_MASTER [=y] && SPI_DESIGNWARE [=y] && (MIPS_BAIKAL_T1 || COMPILE_TEST [=y])
> 
> Drop the 'select' here to avoid the problem. Anyone using
> the dw-bt1 SPI driver should make sure they include the
> mux driver as well now.
> 
> Fixes: 7218838109fe ("spi: dw-bt1: Fix undefined devm_mux_control_get symbol")
> Fixes: abf00907538e ("spi: dw: Add Baikal-T1 SPI Controller glue driver")
> Link: https://lore.kernel.org/all/20221218192523.c6vnfo26ua6xqf26@mobilestation/
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Thanks!
Reviewed-by: Serge Semin <fancer.lancer@...il.com>

-Serge(y)

> ---
>  drivers/spi/Kconfig | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index 61fffc8eecc7..711c1c3bbd78 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -295,7 +295,6 @@ config SPI_DW_BT1
>  	tristate "Baikal-T1 SPI driver for DW SPI core"
>  	depends on MIPS_BAIKAL_T1 || COMPILE_TEST
>  	select MULTIPLEXER
> -	select MUX_MMIO
>  	help
>  	  Baikal-T1 SoC is equipped with three DW APB SSI-based MMIO SPI
>  	  controllers. Two of them are pretty much normal: with IRQ, DMA,
> -- 
> 2.39.0
>