From mboxrd@z Thu Jan  1 00:00:00 1970
From: pebolle@tiscali.nl (Paul Bolle)
Date: Fri, 08 May 2015 13:47:05 +0200
Subject: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched
 clock' capability
In-Reply-To: <20150508102938.GD29044@x1>
References: <1431005924-21777-1-git-send-email-lee.jones@linaro.org>
 <1431005924-21777-4-git-send-email-lee.jones@linaro.org>
 <1431074699.13593.4.camel@x220> <20150508093603.GB29044@x1>
 <1431078730.13593.14.camel@x220> <20150508102938.GD29044@x1>
Message-ID: <1431085625.13593.39.camel@x220>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Fri, 2015-05-08 at 11:29 +0100, Lee Jones wrote:
> Ah, you mean from menuconfig.  I almost forgot what that was. ;)
> 
> I can add a menu option, no problem.

It's not just menuconfig:
    $ grep -e CONFIG_ARCH_STI -e CONFIG_CLKSRC_ST_LPC .config 
    CONFIG_ARCH_STI=y
    CONFIG_CLKSRC_ST_LPC=y
    CONFIG_CLKSRC_ST_LPC_TIMER_SCHED_CLOCK=y
    $ vim .config 
    $ grep -e CONFIG_ARCH_STI -e CONFIG_CLKSRC_ST_LPC .config 
    CONFIG_ARCH_STI=y
    # CONFIG_CLKSRC_ST_LPC is not set
    # CONFIG_CLKSRC_ST_LPC_TIMER_SCHED_CLOCK is not set
    $ make ARCH=arm silentoldconfig
    scripts/kconfig/conf  --silentoldconfig Kconfig
    #
    # configuration written to .config
    #
    $ grep -e CONFIG_ARCH_STI -e CONFIG_CLKSRC_ST_LPC .config 
    CONFIG_ARCH_STI=y
    CONFIG_CLKSRC_ST_LPC=y
    CONFIG_CLKSRC_ST_LPC_TIMER_SCHED_CLOCK=y

So I think that, if you want to be able to set
CLKSRC_ST_LPC_TIMER_SCHED_CLOCK to 'n' even though CLKSRC_ST_LPC is 'y',
you need to add a prompt. Or have you found a way around this?

Thanks,


Paul Bolle