| Message ID | 1425888603-25800-2-git-send-email-s.hauer@pengutronix.de |
|---|---|
| State | Superseded, archived |
| Headers | show |
Sascha Hauer <s.hauer@pengutronix.de> writes: > This adds documentation for the MediaTek SCPSYS unit found in MT8173 SoCs. Curious if this IP unique to the 8173? or maybe also used on 8135? ... > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > --- > .../devicetree/bindings/soc/mediatek/scpsys.txt | 32 ++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > create mode 100644 Documentation/devicetree/bindings/soc/mediatek/scpsys.txt > > diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt > new file mode 100644 > index 0000000..4764a03 > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt > @@ -0,0 +1,32 @@ > +MediaTek SCPSYS > +=============== > + > +The System Control Processor System (SCPSYS) has several power management > +related tasks in the system. The tasks include thermal measurement, dynamic > +voltage frequency scaling (DVFS), interrupt filter and lowlevel sleep control. > +The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power > +domain control. > + > +The driver implements the Generic PM domain bindings described in > +power/power_domain.txt. It provides the power domains defined in > +include/dt-bindings/power/mt8173-power.h. > + > +Required properties: > +- compatible: Must be "mediatek,mt8173-scpsys" ... if so, maybe the compatible could/should be slightly more generic? Kevin -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Mar 09, 2015 at 01:46:25PM -0700, Kevin Hilman wrote: > Sascha Hauer <s.hauer@pengutronix.de> writes: > > > This adds documentation for the MediaTek SCPSYS unit found in MT8173 SoCs. > > Curious if this IP unique to the 8173? or maybe also used on 8135? ... This is indeed found on the MT8135 aswell, but I already spotted the first differences, so we'll need the SoC specific compatible anyway. Sascha
diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt new file mode 100644 index 0000000..4764a03 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt @@ -0,0 +1,32 @@ +MediaTek SCPSYS +=============== + +The System Control Processor System (SCPSYS) has several power management +related tasks in the system. The tasks include thermal measurement, dynamic +voltage frequency scaling (DVFS), interrupt filter and lowlevel sleep control. +The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power +domain control. + +The driver implements the Generic PM domain bindings described in +power/power_domain.txt. It provides the power domains defined in +include/dt-bindings/power/mt8173-power.h. + +Required properties: +- compatible: Must be "mediatek,mt8173-scpsys" +- #power-domain-cells: Must be 1 +- reg: Address range of the SCPSYS unit + +Example: + + scpsys: scpsys@10006000 { + #power-domain-cells = <1>; + compatible = "mediatek,mt8173-scpsys"; + reg = <0 0x10006000 0 0x1000>; + }; + +Example consumer: + + afe: mt8173-afe-pcm@11220000 { + compatible = "mediatek,mt8173-afe-pcm"; + power-domains = <&scpsys MT8173_POWER_DOMAIN_AUDIO>; + };
This adds documentation for the MediaTek SCPSYS unit found in MT8173 SoCs. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- .../devicetree/bindings/soc/mediatek/scpsys.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/scpsys.txt