On Fri, Jan 22, 2016 at 04:31:36PM -0600, Rob Herring wrote: > On Fri, Jan 22, 2016 at 04:40:27PM +0800, Pi-Cheng Chen wrote: > > This adds optional properties of Mediatek thermal controller which are > > required by SVS engine integrated with Mediatek thermal controller. > > > > Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@xxxxxxxxxx> > > --- > > .../bindings/thermal/mediatek-thermal.txt | 23 ++++++++++++++++------ > > 1 file changed, 17 insertions(+), 6 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt > > index 81f9a51..acaacaa 100644 > > --- a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt > > +++ b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt > > @@ -7,6 +7,11 @@ this device needs phandles to the AUXADC. Also it controls a mux in the > > apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS > > is also needed. > > > > +There is another hardware engine, SVS (Smart Voltage Scaling) which shares the > > +same block of banked registers with Mediatek thermal controller. Hence the > > +driver of SVS is integrated with the driver of Mediatek thermal controller. The > > +properties required by SVS engine are optional for Mediatek thermal controller. > > + > > Required properties: > > - compatible: "mediatek,mt8173-thermal" > > - reg: Address range of the thermal controller > > @@ -21,9 +26,15 @@ Required properties: > > - #thermal-sensor-cells : Should be 0. See ./thermal.txt for a description. > > > > Optional properties: > > -- nvmem-cells: A phandle to the calibration data provided by a nvmem device. If > > - unspecified default values shall be used. > > -- nvmem-cell-names: Should be "calibration-data" > > +- clocks, clock-names: Clocks that are optional for the thermal controller. > > + Specify to enable SVS engine. > > + "svs_pll": The PLL clock should be switched to during > > + initialization stage of SVS engine. > > + "svs_mux": The MUX clock controls the clock input of SVS engine. > > +- nvmem-cells: A list of phandles to the calibration data provided by a nvmem > > + device. If unspecified default values shall be used. The SVS > > + engine will be disabled if no SVS calibration data is specified. > > +- nvmem-cell-names: Should be "calibration-data" and "svs-calibration-data" > > > > Example: > > > > @@ -33,11 +44,11 @@ Example: > > reg = <0 0x1100b000 0 0x1000>; > > interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>; > > clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>; > > - clock-names = "therm", "auxadc"; > > + clock-names = "therm", "auxadc", ; > > Huh? > It should be: clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>, <&topckgen CLK_TOP_SYSPLL1_D2>, <&topckgen CLK_TOP_AXI_SEL>; clock-names = "therm", "auxadc", "svs_pll", "svs_mux"; Sorry for my mistake. > > resets = <&pericfg MT8173_PERI_THERM_SW_RST>; > > reset-names = "therm"; > > mediatek,auxadc = <&auxadc>; > > mediatek,apmixedsys = <&apmixedsys>; > > - nvmem-cells = <&thermal_calibration_data>; > > - nvmem-cell-names = "calibration-data"; > > + nvmem-cells = <&thermal_calibration_data>, <&svs-calibration>; > > + nvmem-cell-names = "calibration-data", "svs-calibration-data"; > > }; > > -- > > 1.9.1 > > -- 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
