| Message ID | 1509479663-8985-4-git-send-email-manivannan.sadhasivam@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Add clock driver for Actions S900 SoC | expand |
On Wed, Nov 01, 2017 at 07:04:48PM -0500, Rob Herring wrote: > On Wed, Nov 01, 2017 at 01:24:23AM +0530, Manivannan Sadhasivam wrote: > > This patch adds clock bindings for Actions Semi S900 SoC. > > "dt-bindings: clock: " for the subject. > > This patch should come before the dts and driver changes. > Ack. Will incorporate in next revision. Thanks, Mani > > > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > --- > > .../bindings/clock/actions,s900-clock.txt | 47 ++++++++++++++++++++++ > > 1 file changed, 47 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/clock/actions,s900-clock.txt > > > > diff --git a/Documentation/devicetree/bindings/clock/actions,s900-clock.txt b/Documentation/devicetree/bindings/clock/actions,s900-clock.txt > > new file mode 100644 > > index 0000000..951d6ad > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/clock/actions,s900-clock.txt > > @@ -0,0 +1,47 @@ > > +* Actions s900 Clock Controller > > + > > +The Actions s900 clock controller generates and supplies clock to various > > +controllers within the SoC. The clock binding described here is applicable to > > +s900 SoC. > > + > > +Required Properties: > > + > > +- compatible: should be "actions,s900-clock" > > +- reg: physical base address of the controller and length of memory mapped > > + region. > > +- #clock-cells: should be 1. > > + > > +Each clock is assigned an identifier and client nodes can use this identifier > > +to specify the clock which they consume. > > + > > +All available clocks are defined as preprocessor macros in > > +dt-bindings/clock/actions,s900-clock.h header and can be used in device > > +tree sources. > > + > > +External clocks: > > + > > +The hosc clock used as input for the plls is generated outside the SoC. It is > > +expected that it is defined using standard clock bindings as "hosc". > > + > > +Actions s900 Clock Controller also require two more clocks: > > + - "losc" - internal low frequency oscillator > > + - "diff_24M" - internal differential 24MHz clock > > + > > +Example: Clock controller node: > > + > > + clock: clock-controller@e0160000 { > > + compatible = "actions,s900-clock"; > > + reg = <0 0xe0160000 0 0x1000>; > > + #clock-cells = <1>; > > + }; > > + > > +Example: UART controller node that consumes clock generated by the clock > > +controller: > > + > > + serial5: uart@e012a000 { > > serial@... > > > + compatible = "actions,s900-uart", "actions,owl-uart"; > > + reg = <0x0 0xe012a000 0x0 0x2000>; > > + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&clock CLK_UART5>; > > + clock-names = "uart"; > > + }; > > -- > > 2.7.4 > >
On Wed, Nov 01, 2017 at 07:04:48PM -0500, Rob Herring wrote: > On Wed, Nov 01, 2017 at 01:24:23AM +0530, Manivannan Sadhasivam wrote: > > This patch adds clock bindings for Actions Semi S900 SoC. > > "dt-bindings: clock: " for the subject. > > This patch should come before the dts and driver changes. > Sure. Will incorporate in next revision. Thanks, Mani > > > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > --- > > .../bindings/clock/actions,s900-clock.txt | 47 ++++++++++++++++++++++ > > 1 file changed, 47 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/clock/actions,s900-clock.txt > > > > diff --git a/Documentation/devicetree/bindings/clock/actions,s900-clock.txt b/Documentation/devicetree/bindings/clock/actions,s900-clock.txt > > new file mode 100644 > > index 0000000..951d6ad > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/clock/actions,s900-clock.txt > > @@ -0,0 +1,47 @@ > > +* Actions s900 Clock Controller > > + > > +The Actions s900 clock controller generates and supplies clock to various > > +controllers within the SoC. The clock binding described here is applicable to > > +s900 SoC. > > + > > +Required Properties: > > + > > +- compatible: should be "actions,s900-clock" > > +- reg: physical base address of the controller and length of memory mapped > > + region. > > +- #clock-cells: should be 1. > > + > > +Each clock is assigned an identifier and client nodes can use this identifier > > +to specify the clock which they consume. > > + > > +All available clocks are defined as preprocessor macros in > > +dt-bindings/clock/actions,s900-clock.h header and can be used in device > > +tree sources. > > + > > +External clocks: > > + > > +The hosc clock used as input for the plls is generated outside the SoC. It is > > +expected that it is defined using standard clock bindings as "hosc". > > + > > +Actions s900 Clock Controller also require two more clocks: > > + - "losc" - internal low frequency oscillator > > + - "diff_24M" - internal differential 24MHz clock > > + > > +Example: Clock controller node: > > + > > + clock: clock-controller@e0160000 { > > + compatible = "actions,s900-clock"; > > + reg = <0 0xe0160000 0 0x1000>; > > + #clock-cells = <1>; > > + }; > > + > > +Example: UART controller node that consumes clock generated by the clock > > +controller: > > + > > + serial5: uart@e012a000 { > > serial@... > > > + compatible = "actions,s900-uart", "actions,owl-uart"; > > + reg = <0x0 0xe012a000 0x0 0x2000>; > > + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&clock CLK_UART5>; > > + clock-names = "uart"; > > + }; > > -- > > 2.7.4 > >
diff --git a/Documentation/devicetree/bindings/clock/actions,s900-clock.txt b/Documentation/devicetree/bindings/clock/actions,s900-clock.txt new file mode 100644 index 0000000..951d6ad --- /dev/null +++ b/Documentation/devicetree/bindings/clock/actions,s900-clock.txt @@ -0,0 +1,47 @@ +* Actions s900 Clock Controller + +The Actions s900 clock controller generates and supplies clock to various +controllers within the SoC. The clock binding described here is applicable to +s900 SoC. + +Required Properties: + +- compatible: should be "actions,s900-clock" +- reg: physical base address of the controller and length of memory mapped + region. +- #clock-cells: should be 1. + +Each clock is assigned an identifier and client nodes can use this identifier +to specify the clock which they consume. + +All available clocks are defined as preprocessor macros in +dt-bindings/clock/actions,s900-clock.h header and can be used in device +tree sources. + +External clocks: + +The hosc clock used as input for the plls is generated outside the SoC. It is +expected that it is defined using standard clock bindings as "hosc". + +Actions s900 Clock Controller also require two more clocks: + - "losc" - internal low frequency oscillator + - "diff_24M" - internal differential 24MHz clock + +Example: Clock controller node: + + clock: clock-controller@e0160000 { + compatible = "actions,s900-clock"; + reg = <0 0xe0160000 0 0x1000>; + #clock-cells = <1>; + }; + +Example: UART controller node that consumes clock generated by the clock +controller: + + serial5: uart@e012a000 { + compatible = "actions,s900-uart", "actions,owl-uart"; + reg = <0x0 0xe012a000 0x0 0x2000>; + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clock CLK_UART5>; + clock-names = "uart"; + };
This patch adds clock bindings for Actions Semi S900 SoC. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- .../bindings/clock/actions,s900-clock.txt | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/actions,s900-clock.txt -- 2.7.4