On Thu, Jan 28, 2016 at 06:19:16PM +0800, Wenyou Yang wrote: > Add DT bindings to configurate the PMC_FSMR and PMC_FSPR registers > to trigger a fast restart signal to PMC. > > Signed-off-by: Wenyou Yang <wenyou.yang@xxxxxxxxx> > --- > > .../devicetree/bindings/arm/atmel-pmc.txt | 74 ++++++++++++++++++++ > 1 file changed, 74 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/atmel-pmc.txt b/Documentation/devicetree/bindings/arm/atmel-pmc.txt > index 795cc78..8d45ff9f 100644 > --- a/Documentation/devicetree/bindings/arm/atmel-pmc.txt > +++ b/Documentation/devicetree/bindings/arm/atmel-pmc.txt > @@ -12,3 +12,77 @@ Examples: > compatible = "atmel,at91rm9200-pmc"; > reg = <0xfffffc00 0x100>; > }; > + > +PMC Fast Startup Signals > + > +The PMC Fast Start Signals are used as the wake up source to trigger the PMC > +to wake up the system from the ULP1 mode. > + > +required properties: > +- compatible: Should be "atmel,sama5d2-pmc-fast-startup". Why the compatible? Does this correspond to some h/w block rather than features of the PMC? If it is simply because you want to have a separate driver, that is not a good reason. > + > +optional properties: > +- atmel,fast-startup-wake-up: boolean to enable the WKUP pin to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-secumod: boolean to enable the Security Mode to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu0: boolean to enable the PIOBU0 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu1: boolean to enable the PIOBU1 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu2: boolean to enable the PIOBU2 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu3: boolean to enable the PIOBU3 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu4: boolean to enable the PIOBU4 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu5: boolean to enable the PIOBU5 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu6: boolean to enable the PIOBU6 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-piobu7: boolean to enable the PIOBU7 Input to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-gmac-wol: boolean to enable the GMAC Wake-up On LAN > + to trigger a fast restart signal to the PMC. > +- atmel,fast-startup-rtc-alarm: boolean to enable the RTC Alarm to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-usb-resume: boolean to enable the USB Resume to trigger > + a fast restart signal to the PMC. > +- atmel,fast-startup-sdmmc-cd: boolean to enable the SDMMC Card Detect > + to trigger a fast restart signal to the PMC. > +- atmel,fast-startup-rxlp-match: boolean to enable the Backuo UART Receive > + Match Condition to trigger a fast restart signal to the PMC. > +- atmel,fast-startup-acc-comparison: boolean to enable the Analog Comparator > + Controller (ACC) Comparison to to trigger a fast restart signal to the PMC. > + > +- atmel,fast-startup-wkup-pin-high: boolean to indicate if the WKUP Pin is > + in the high level to trigger fast restart signal, otherwise low level. Perhaps just make the above bool properties take a value to indicate high or low triggered. > +- atmel,fast-startup-piobu0-high: boolean to indicate if the PIOBU0 Pin is > + in the high level to trigger fast restart signal, otherwise low level. > +- atmel,fast-startup-piobu1-high: boolean to indicate if the PIOBU1 Pin is > + in the high level to trigger fast restart signal, otherwise low level. > +- atmel,fast-startup-piobu2-high: boolean to indicate if the PIOBU2 Pin is > + in the high level to trigger fast restart signal, otherwise low level. > +- atmel,fast-startup-piobu3-high: boolean to indicate if the PIOBU3 Pin is > + in the high level to trigger fast restart signal, otherwise low level. > +- atmel,fast-startup-piobu4-high: boolean to indicate if the PIOBU4 Pin is > + in the high level to trigger fast restart signal, otherwise low level. > +- atmel,fast-startup-piobu5-high: boolean to indicate if the PIOBU5 Pin is > + in the high level to trigger fast restart signal, otherwise low level. > +- atmel,fast-startup-piobu6-high: boolean to indicate if the PIOBU6 Pin is > + in the high level to trigger fast restart signal, otherwise low level. > +- atmel,fast-startup-piobu7-high: boolean to indicate if the PIOBU7 Pin is > + in the high level to trigger fast restart signal, otherwise low level. This would be a long list in the DT if you set all these properties. Perhaps this should all be expressed in a more compact form. > + > +Example: > + > + pmc: pmc@f0014000 { > + compatible = "atmel,sama5d2-pmc"; > + reg = <0xf0014000 0x160>; > + > + pmc_fast_restart { > + compatible = "atmel,sama5d2-pmc-fast-startup"; > + atmel,fast-startup-wake-up; > + atmel,fast-startup-rtc-alarm; > + }; > + }; > -- > 1.7.9.5 > -- 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