linux-kernel - Re: [RFC v2 4/6] drivers: boot_constraint: Add debugfs support

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Date:   Wed, 12 Jul 2017 12:48:02 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Shiraz Hashim <shashim@...eaurora.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC v2 4/6] drivers: boot_constraint: Add debugfs support

On 12-07-17, 12:04, Viresh Kumar wrote:
> This patch adds debugfs support for boot constraints. This is how it
> looks for a "vmmc-supply" constraint for the MMC device.
> 
> $ ls -R /sys/kernel/debug/boot_constraints/
> /sys/kernel/debug/boot_constraints/:
> f723d000.dwmmc0
> 
> /sys/kernel/debug/boot_constraints/f723d000.dwmmc0:
> supply-vmmc
> 
> /sys/kernel/debug/boot_constraints/f723d000.dwmmc0/supply-vmmc:
> u_volt_max  u_volt_min
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> ---
>  drivers/base/boot_constraint.c | 80 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 80 insertions(+)

Forgot to mention that this one depends on
https://marc.info/?l=linux-kernel&m=149870936319587 for compilation
without CONFIG_DEBUG_FS.

--
viresh