From: viresh.kumar@linaro.org (Viresh Kumar)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC v2 4/6] drivers: boot_constraint: Add debugfs support
Date: Wed, 12 Jul 2017 12:48:02 +0530 [thread overview]
Message-ID: <20170712071802.GA1679@vireshk-i7> (raw)
In-Reply-To: <c52f57d42ec875da97acde84e5dbe86be5390f6c.1499770771.git.viresh.kumar@linaro.org>
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@linaro.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
next prev parent reply other threads:[~2017-07-12 7:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-12 6:34 [RFC v2 0/6] drivers: Boot Constraints core Viresh Kumar
2017-07-12 6:34 ` [RFC v2 1/6] drivers: Add boot constraints core Viresh Kumar
2017-07-12 6:34 ` [RFC v2 2/6] drivers: boot_constraint: Add support for supply constraints Viresh Kumar
2017-07-12 6:34 ` [RFC v2 3/6] drivers: boot_constraint: Add boot_constraints_disable kernel parameter Viresh Kumar
2017-07-12 6:34 ` [RFC v2 4/6] drivers: boot_constraint: Add debugfs support Viresh Kumar
2017-07-12 7:18 ` Viresh Kumar [this message]
2017-07-12 6:34 ` [RFC v2 5/6] drivers: boot_constraint: Add initial DT bindings Viresh Kumar
2017-07-12 21:28 ` Rob Herring
2017-07-13 2:52 ` Chen-Yu Tsai
2017-07-13 5:09 ` Viresh Kumar
2017-07-13 9:46 ` Chen-Yu Tsai
2017-07-13 9:51 ` Viresh Kumar
2017-07-13 9:36 ` Viresh Kumar
2017-07-17 17:34 ` Rob Herring
2017-07-18 5:58 ` Viresh Kumar
2017-07-12 6:34 ` [RFC v2 6/6] drivers: boot_constraint: Add constraints for OF devices Viresh Kumar
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