| Message ID | 1458134390-23847-2-git-send-email-nicolas.ferre@atmel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 16/03/2016 at 14:19:49 +0100, Nicolas Ferre wrote : > The new shutdown controller compatible with sama5d2 has a new binding > documentation and properties. > > Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> > Cc: devicetree@vger.kernel.org > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Pawel Moll <pawel.moll@arm.com> > Cc: Mark Rutland <mark.rutland@arm.com> > Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> > > doc > with that spurious "doc" removed, Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> > --- > > Changes in v5: > - change naming for this driver: instead of the "alternate shdwc" we choose a > more specific "sama5d2-compatible shdwc" wording. > > Changes in v4: > - change property to debounce-delay-us so that we can use a generic property > and we can have the unit explicitly included it the name according to > Documentation/devicetree/bindings/property-units.txt. > - move to atmel,wakeup-active-high boolean property instead of a "high", "low" > string comparison. > > Changes in v3: > - get and use slow clock and specify its handler in binding > > Changes in v2: None > > .../devicetree/bindings/arm/atmel-at91.txt | 59 ++++++++++++++++++++++ > 1 file changed, 59 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt > index 7fd64ec9ee1d..2f5a07b32fb7 100644 > --- a/Documentation/devicetree/bindings/arm/atmel-at91.txt > +++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt > @@ -147,6 +147,65 @@ Example: > clocks = <&clk32k>; > }; > > +SHDWC SAMA5D2-Compatible Shutdown Controller > + > +1) shdwc node > + > +required properties: > +- compatible: should be "atmel,sama5d2-shdwc". > +- reg: should contain registers location and length > +- clocks: phandle to input clock. > +- #address-cells: should be one. The cell is the wake-up input index. > +- #size-cells: should be zero. > + > +optional properties: > + > +- debounce-delay-us: minimum wake-up inputs debouncer period in > + microseconds. It's usually a board-related property. > +- atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up. > + > +The node contains child nodes for each wake-up input that the platform uses. > + > +2) input nodes > + > +Wake-up input nodes are usually described in the "board" part of the Device > +Tree. Note also that input 0 is linked to the wake-up pin and is frequently > +used. > + > +Required properties: > +- reg: should contain the wake-up input index [0 - 15]. > + > +Optional properties: > +- atmel,wakeup-active-high: boolean, the corresponding wake-up input described > + by the child, forces the wake-up of the core power supply on a high level. > + The default is to be active low. > + > +Example: > + > +On the SoC side: > + shdwc@f8048010 { > + compatible = "atmel,sama5d2-shdwc"; > + reg = <0xf8048010 0x10>; > + clocks = <&clk32k>; > + #address-cells = <1>; > + #size-cells = <0>; > + atmel,wakeup-rtc-timer; > + }; > + > +On the board side: > + shdwc@f8048010 { > + debounce-delay-us = <976>; > + > + input@0 { > + reg = <0>; > + }; > + > + input@1 { > + reg = <1>; > + atmel,wakeup-active-high; > + }; > + }; > + > Special Function Registers (SFR) > > Special Function Registers (SFR) manage specific aspects of the integrated > -- > 2.1.3 >
On Wed, Mar 16, 2016 at 02:19:49PM +0100, Nicolas Ferre wrote: > The new shutdown controller compatible with sama5d2 has a new binding > documentation and properties. > > Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> > Cc: devicetree@vger.kernel.org > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Pawel Moll <pawel.moll@arm.com> > Cc: Mark Rutland <mark.rutland@arm.com> > Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> > > doc > > --- > > Changes in v5: > - change naming for this driver: instead of the "alternate shdwc" we choose a > more specific "sama5d2-compatible shdwc" wording. > > Changes in v4: > - change property to debounce-delay-us so that we can use a generic property > and we can have the unit explicitly included it the name according to > Documentation/devicetree/bindings/property-units.txt. > - move to atmel,wakeup-active-high boolean property instead of a "high", "low" > string comparison. > > Changes in v3: > - get and use slow clock and specify its handler in binding > > Changes in v2: None > > .../devicetree/bindings/arm/atmel-at91.txt | 59 ++++++++++++++++++++++ > 1 file changed, 59 insertions(+) Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt index 7fd64ec9ee1d..2f5a07b32fb7 100644 --- a/Documentation/devicetree/bindings/arm/atmel-at91.txt +++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt @@ -147,6 +147,65 @@ Example: clocks = <&clk32k>; }; +SHDWC SAMA5D2-Compatible Shutdown Controller + +1) shdwc node + +required properties: +- compatible: should be "atmel,sama5d2-shdwc". +- reg: should contain registers location and length +- clocks: phandle to input clock. +- #address-cells: should be one. The cell is the wake-up input index. +- #size-cells: should be zero. + +optional properties: + +- debounce-delay-us: minimum wake-up inputs debouncer period in + microseconds. It's usually a board-related property. +- atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up. + +The node contains child nodes for each wake-up input that the platform uses. + +2) input nodes + +Wake-up input nodes are usually described in the "board" part of the Device +Tree. Note also that input 0 is linked to the wake-up pin and is frequently +used. + +Required properties: +- reg: should contain the wake-up input index [0 - 15]. + +Optional properties: +- atmel,wakeup-active-high: boolean, the corresponding wake-up input described + by the child, forces the wake-up of the core power supply on a high level. + The default is to be active low. + +Example: + +On the SoC side: + shdwc@f8048010 { + compatible = "atmel,sama5d2-shdwc"; + reg = <0xf8048010 0x10>; + clocks = <&clk32k>; + #address-cells = <1>; + #size-cells = <0>; + atmel,wakeup-rtc-timer; + }; + +On the board side: + shdwc@f8048010 { + debounce-delay-us = <976>; + + input@0 { + reg = <0>; + }; + + input@1 { + reg = <1>; + atmel,wakeup-active-high; + }; + }; + Special Function Registers (SFR) Special Function Registers (SFR) manage specific aspects of the integrated
The new shutdown controller compatible with sama5d2 has a new binding documentation and properties. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> doc --- Changes in v5: - change naming for this driver: instead of the "alternate shdwc" we choose a more specific "sama5d2-compatible shdwc" wording. Changes in v4: - change property to debounce-delay-us so that we can use a generic property and we can have the unit explicitly included it the name according to Documentation/devicetree/bindings/property-units.txt. - move to atmel,wakeup-active-high boolean property instead of a "high", "low" string comparison. Changes in v3: - get and use slow clock and specify its handler in binding Changes in v2: None .../devicetree/bindings/arm/atmel-at91.txt | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+)