From: jonathanh@nvidia•com (Jon Hunter)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V5 10/14] Documentation: DT: bindings: Add power domain info for NVIDIA PMC
Date: Wed, 3 Feb 2016 11:02:24 +0000 [thread overview]
Message-ID: <56B1DE40.7080403@nvidia.com> (raw)
In-Reply-To: <20160129160625.GA21918@rob-hp-laptop>
On 29/01/16 16:06, Rob Herring wrote:
> On Thu, Jan 28, 2016 at 04:33:48PM +0000, Jon Hunter wrote:
>> Add power-domain binding documentation for the NVIDIA PMC driver in
>> order to support generic power-domains.
>>
>> Signed-off-by: Jon Hunter <jonathanh@nvidia•com>
>> ---
>> .../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 55 ++++++++++++++++++++++
>> 1 file changed, 55 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
>> index 53aa5496c5cf..3c77373aa826 100644
>> --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
>> +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
>> @@ -1,5 +1,7 @@
>> NVIDIA Tegra Power Management Controller (PMC)
>>
>> +== Power Management Controller Node ==
>> +
>> The PMC block interacts with an external Power Management Unit. The PMC
>> mostly controls the entry and exit of the system from different sleep
>> modes. It provides power-gating controllers for SoC and CPU power-islands.
>> @@ -70,6 +72,10 @@ Optional properties for hardware-triggered thermal reset (inside 'i2c-thermtrip'
>> Defaults to 0. Valid values are described in section 12.5.2
>> "Pinmux Support" of the Tegra4 Technical Reference Manual.
>>
>> +Optional nodes:
>> +- powergates : This node contains a hierarchy of power domain nodes, which
>> + should match the powergates on the Tegra SoC.
>> +
>> Example:
>>
>> / SoC dts including file
>> @@ -115,3 +121,52 @@ pmc at 7000f400 {
>> };
>> ...
>> };
>> +
>> +
>> +== PM Domain Nodes ==
>> +
>> +Each of the PM domain nodes represents a power-domain on the Tegra SoC
>> +that can be power-gated by the PMC and should be named appropriately.
>> +
>> +Required properties:
>> + - clocks: Must contain an entry for each clock required by the PMC for
>> + controlling a power-gate. See ../clocks/clock-bindings.txt for details.
>> + - resets: Must contain an entry for each reset required by the PMC for
>> + controlling a power-gate. See ../reset/reset.txt for details.
>> + - nvidia,powergate: Integer cell that contains an identifier for the PMC
>> + power-gate that is associated with the power-domain. Please refer to
>> + the Tegra TRM for more details.
>
> Why not make this value be the power-domain cell for consumers and the
> pmc be the phandle.
Is there anything wrong with using a label for the consumers? Seems
simpler, if you can just say ...
adma: adma at 702e2000 {
...
power-domains = <&pd_audio>;
...
};
> Then use reg property for the subnodes. That avoids a custom property.
That is fine with me.
Jon
next prev parent reply other threads:[~2016-02-03 11:02 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-28 16:33 [PATCH V5 00/14] Add generic PM domain support for Tegra Jon Hunter
2016-01-28 16:33 ` [PATCH V5 01/14] soc: tegra: pmc: Restore base address on probe failure Jon Hunter
2016-01-28 16:33 ` [PATCH V5 02/14] soc: tegra: pmc: Protect public functions from potential race conditions Jon Hunter
2016-01-29 16:20 ` Mathieu Poirier
2016-02-01 13:42 ` Jon Hunter
2016-01-28 16:33 ` [PATCH V5 03/14] soc: tegra: pmc: Change powergate and rail IDs to be an unsigned type Jon Hunter
2016-01-28 16:33 ` [PATCH V5 04/14] soc: tegra: pmc: Fix testing of powergate state Jon Hunter
2016-01-28 16:33 ` [PATCH V5 05/14] soc: tegra: pmc: Wait for powergate state to change Jon Hunter
2016-01-29 16:58 ` Mathieu Poirier
2016-02-01 13:44 ` Jon Hunter
2016-02-03 9:20 ` Jon Hunter
2016-02-03 15:58 ` Mathieu Poirier
2016-01-28 16:33 ` [PATCH V5 06/14] soc: tegra: pmc: Fix checking of valid partitions Jon Hunter
2016-01-29 17:08 ` Mathieu Poirier
2016-02-01 13:45 ` Jon Hunter
2016-01-28 16:33 ` [PATCH V5 07/14] soc: tegra: pmc: Ensure partitions can be toggled on/off by PMC Jon Hunter
2016-01-28 16:33 ` [PATCH V5 08/14] PM / Domains: Add function to remove a pm-domain Jon Hunter
2016-02-02 15:35 ` Ulf Hansson
2016-02-03 10:51 ` Jon Hunter
2016-01-28 16:33 ` [PATCH V5 09/14] Documentation: DT: bindings: Update NVIDIA PMC for Tegra Jon Hunter
2016-01-29 16:08 ` Rob Herring
2016-01-28 16:33 ` [PATCH V5 10/14] Documentation: DT: bindings: Add power domain info for NVIDIA PMC Jon Hunter
2016-01-29 16:06 ` Rob Herring
2016-02-03 11:02 ` Jon Hunter [this message]
2016-02-03 15:48 ` Rob Herring
2016-02-10 10:57 ` Jon Hunter
2016-02-10 14:06 ` Rob Herring
2016-01-28 16:33 ` [PATCH V5 11/14] soc: tegra: pmc: Add generic PM domain support Jon Hunter
2016-02-04 15:44 ` Ulf Hansson
2016-02-10 18:01 ` Jon Hunter
2016-02-10 18:25 ` Ulf Hansson
2016-02-11 9:13 ` Jon Hunter
2016-02-11 9:57 ` Ulf Hansson
2016-02-11 10:13 ` Jon Hunter
2016-02-11 10:26 ` Jon Hunter
2016-02-11 10:37 ` Ulf Hansson
2016-02-11 10:52 ` Jon Hunter
2016-02-11 10:28 ` Ulf Hansson
2016-02-11 16:38 ` Jon Hunter
2016-02-18 15:06 ` Ulf Hansson
2016-02-12 23:14 ` Kevin Hilman
2016-02-15 11:27 ` Jon Hunter
2016-02-18 16:00 ` Ulf Hansson
2016-02-18 16:31 ` Jon Hunter
2016-02-24 0:03 ` Kevin Hilman
2016-01-28 16:33 ` [PATCH V5 12/14] clk: tegra210: Add the APB2APE audio clock Jon Hunter
2016-02-02 14:37 ` Thierry Reding
2016-01-28 16:33 ` [PATCH V5 13/14] ARM64: tegra: Add audio PM domain device node for Tegra210 Jon Hunter
2016-01-28 16:33 ` [PATCH V5 14/14] ARM64: tegra: select PM_GENERIC_DOMAINS Jon Hunter
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