linux-kernel - Re: [PATCH] mtd: hyperbus: Kconfig: Fix HBMC

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Message-ID: <83175738-a41e-04e6-7be2-85213dfdc416@infradead.org>
Date:   Sat, 20 Jul 2019 06:45:40 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Vignesh Raghavendra <vigneshr@...com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Mao Wenan <maowenan@...wei.com>
Subject: Re: [PATCH] mtd: hyperbus: Kconfig: Fix HBMC_AM654 dependencies

On 7/19/19 1:29 AM, Vignesh Raghavendra wrote:
> On x86_64, when CONFIG_OF is not disabled:
> 
> WARNING: unmet direct dependencies detected for MUX_MMIO
>   Depends on [n]: MULTIPLEXER [=y] && (OF [=n] || COMPILE_TEST [=n])
>   Selected by [y]:
>   - HBMC_AM654 [=y] && MTD [=y] && MTD_HYPERBUS [=y]
> 
> due to
> config HBMC_AM654
> 	tristate "HyperBus controller driver for AM65x SoC"
> 	select MULTIPLEXER
> 	select MUX_MMIO
> 
> Fix this by making HBMC_AM654 imply MUX_MMIO instead of select so
> that dependencies are taken care of. MUX_MMIO is optional for
> functioning of driver.
> 
> Fixes: b07079f1642c ("mtd: hyperbus: Add driver for TI's HyperBus memory controller")
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> Signed-off-by: Vignesh Raghavendra <vigneshr@...com>

Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested

Thanks.

> ---
>  drivers/mtd/hyperbus/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/hyperbus/Kconfig b/drivers/mtd/hyperbus/Kconfig
> index cff6bbd226f5..1c691df8eff7 100644
> --- a/drivers/mtd/hyperbus/Kconfig
> +++ b/drivers/mtd/hyperbus/Kconfig
> @@ -15,7 +15,7 @@ if MTD_HYPERBUS
>  config HBMC_AM654
>  	tristate "HyperBus controller driver for AM65x SoC"
>  	select MULTIPLEXER
> -	select MUX_MMIO
> +	imply MUX_MMIO
>  	help
>  	 This is the driver for HyperBus controller on TI's AM65x and
>  	 other SoCs
> 


-- 
~Randy