linux-kernel - Re: [RFC PATCH 2/7] spi: sunxi: remove redundant "depends on RESET

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Message-ID: <CAK7LNASkXUb-S-MzmaA6KxJbnAPKnLbYvH8KtHPb=fzUrPK2ng@mail.gmail.com>
Date:	Thu, 5 Nov 2015 21:32:15 +0900
From:	Masahiro Yamada <yamada.masahiro@...ionext.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	linux-spi@...r.kernel.org
Subject: Re: [RFC PATCH 2/7] spi: sunxi: remove redundant "depends on RESET_CONTROLLER"

2015-11-05 21:20 GMT+09:00 Mark Brown <broonie@...nel.org>:
> On Thu, Nov 05, 2015 at 09:11:47PM +0900, Masahiro Yamada wrote:
>> 2015-11-05 20:28 GMT+09:00 Mark Brown <broonie@...nel.org>:
>
>> > The dependency is on ARCH_SUNXI || COMPILE_TEST which is not the same as
>> > ARCH_SUNXI.
>
>> The compile test of this driver should pass even if RESET_CONTROLLER
>> is not defined.
>> So, it does not matter for COMPILE_TEST.
>
> If that is the case then the change here is that the dependency on
> RESET_CONTROLLER is just redundant which isn't what the commit message
> says.

For compile test, right, "depends on RESET_CONTROLLER" is
redundant in the first place.

For run-time on real SoCs,the driver failed at the following point
without the reset-controller sub-system.


    sspi->rstc = devm_reset_control_get(&pdev->dev, NULL);
    if (IS_ERR(sspi->rstc)) {
            dev_err(&pdev->dev, "Couldn't get reset controller\n");
            ret = PTR_ERR(sspi->rstc);
            goto err_free_master;
    }




-- 
Best Regards
Masahiro Yamada
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