On 14/01/16 14:41, Thierry Reding wrote: > * PGP Signed by an unknown key > > On Fri, Dec 04, 2015 at 02:57:13PM +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@xxxxxxxxxx> >> >> --- >> >> Please note that I have been debating whether I add this >> "nvidia,powergate-clock-disable" property or just leave the clocks >> disabled by default. Some downstream kernels leave the clocks enabled >> for the audio power-domain because the clocks required for powering up >> the power-domain are needed by all modules within the power-domain. >> However are the same time there are other power-domains that may need >> to be on, but not always clocked and so having the ability to specify if >> the clocks should be disabled seems useful. However, I can also remove >> this and just have the appropriate devices turn on the clocks as well. >> --- >> .../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 61 ++++++++++++++++++++++ >> 1 file changed, 61 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt >> index 838e1a69ec0a..8e4641db51a9 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. >> @@ -69,6 +71,10 @@ 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: >> +- pm-domains : This node contains a hierarchy of PM domain nodes, which should >> + match the power-domains on the Tegra SoC. >> + > > pm-domains is a linuxism. Perhaps name this after what Tegra calls this: > "powergates"? Ok. Jon -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
