linux-kernel - Re: [PATCH V4 09/16] soc: tegra: pmc: Ensure partitions can be toggled on/off by PMC

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Message-ID: <20160114141453.GD23082@ulmo>
Date:	Thu, 14 Jan 2016 15:14:53 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Jon Hunter <jonathanh@...dia.com>
Cc:	Philipp Zabel <p.zabel@...gutronix.de>,
	Stephen Warren <swarren@...dotorg.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Rafael Wysocki <rjw@...ysocki.net>,
	Kevin Hilman <khilman@...nel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Vince Hsu <vinceh@...dia.com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: Re: [PATCH V4 09/16] soc: tegra: pmc: Ensure partitions can be
 toggled on/off by PMC

On Fri, Dec 04, 2015 at 02:57:10PM +0000, Jon Hunter wrote:
> For Tegra124 and Tegra210, the GPU partition cannot be toggled on and off
> via the APBDEV_PMC_PWRGATE_TOGGLE_0 register. For these devices, the
> partition is simply powered up and down via an external regulator.
> Describe in the PMC SoC data in which devices the GPU partition can be
> controlled via the APBDEV_PMC_PWRGATE_TOGGLE_0 register and ensure that
> no one can incorrectly try to toggle the GPU partition via the
> APBDEV_PMC_PWRGATE_TOGGLE_0 register.
> 
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> ---
>  drivers/soc/tegra/pmc.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)

The TRM doesn't mention anything like this. Will this be updated in the
TRM as well?

Thierry

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