| Message ID | 7bc5c69030b6e491cfb2519eb1b21c1b0adc70c3.1498029380.git.baolin.wang@spreadtrum.com |
|---|---|
| State | Superseded |
| Headers | show |
On Wed, Jun 21, 2017 at 03:23:03PM +0800, Baolin Wang wrote: > This patch adds the binding documentation for Spreadtrum I2C > controller device. > > Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com> > --- > Changes since v1: > - No updates. > --- > Documentation/devicetree/bindings/i2c/i2c-sprd.txt | 31 ++++++++++++++++++++ > 1 file changed, 31 insertions(+) > create mode 100644 Documentation/devicetree/bindings/i2c/i2c-sprd.txt > > diff --git a/Documentation/devicetree/bindings/i2c/i2c-sprd.txt b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt > new file mode 100644 > index 0000000..f285e5b > --- /dev/null > +++ b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt > @@ -0,0 +1,31 @@ > +I2C for Spreadtrum platforms > + > +Required properties: > +- compatible: Should be "sprd,r8p0-i2c". Compatible strings should be SoC specific. > +- reg: Specify the physical base address of the controller and length > + of memory mapped region. > +- interrupts: Should contain I2C interrupt. > +- clock-names: Should contain following entries: > + "i2c" for I2C clock, > + "source" for I2C source (parent) clock, > + "enable" for I2C module enable clock. > +- clocks: Should contain a clock specifier for each entry in clock-names. > +- clock-frequency: Constains desired I2C bus clock frequency in Hz. > +- #address-cells: Should be 1 to describe address cells for I2C device address. > +- #size-cells: Should be 0 means no size cell for I2C device address. > + > +Optional properties: > +- Child nodes conforming to I2C bus binding > + > +Examples: > +i2c0: i2c@70500000 { > + compatible = "sprd,r8p0-i2c"; > + reg = <0 0x70500000 0 0x1000>; > + interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; > + clock-names = "i2c", "source", "enable"; > + clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>; > + clock-frequency = <400000>; > + #address-cells = <1>; > + #size-cells = <0>; > +}; > + > -- > 1.7.9.5 >
Hi Rob, On 五, 6月 23, 2017 at 05:20:16下午 -0500, Rob Herring wrote: > On Wed, Jun 21, 2017 at 03:23:03PM +0800, Baolin Wang wrote: > > This patch adds the binding documentation for Spreadtrum I2C > > controller device. > > > > Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com> > > --- > > Changes since v1: > > - No updates. > > --- > > Documentation/devicetree/bindings/i2c/i2c-sprd.txt | 31 ++++++++++++++++++++ > > 1 file changed, 31 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/i2c/i2c-sprd.txt > > > > diff --git a/Documentation/devicetree/bindings/i2c/i2c-sprd.txt b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt > > new file mode 100644 > > index 0000000..f285e5b > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt > > @@ -0,0 +1,31 @@ > > +I2C for Spreadtrum platforms > > + > > +Required properties: > > +- compatible: Should be "sprd,r8p0-i2c". > > Compatible strings should be SoC specific. Will fix this in next version. Thanks. > > > +- reg: Specify the physical base address of the controller and length > > + of memory mapped region. > > +- interrupts: Should contain I2C interrupt. > > +- clock-names: Should contain following entries: > > + "i2c" for I2C clock, > > + "source" for I2C source (parent) clock, > > + "enable" for I2C module enable clock. > > +- clocks: Should contain a clock specifier for each entry in clock-names. > > +- clock-frequency: Constains desired I2C bus clock frequency in Hz. > > +- #address-cells: Should be 1 to describe address cells for I2C device address. > > +- #size-cells: Should be 0 means no size cell for I2C device address. > > + > > +Optional properties: > > +- Child nodes conforming to I2C bus binding > > + > > +Examples: > > +i2c0: i2c@70500000 { > > + compatible = "sprd,r8p0-i2c"; > > + reg = <0 0x70500000 0 0x1000>; > > + interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; > > + clock-names = "i2c", "source", "enable"; > > + clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>; > > + clock-frequency = <400000>; > > + #address-cells = <1>; > > + #size-cells = <0>; > > +}; > > + > > -- > > 1.7.9.5 > >
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sprd.txt b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt new file mode 100644 index 0000000..f285e5b --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt @@ -0,0 +1,31 @@ +I2C for Spreadtrum platforms + +Required properties: +- compatible: Should be "sprd,r8p0-i2c". +- reg: Specify the physical base address of the controller and length + of memory mapped region. +- interrupts: Should contain I2C interrupt. +- clock-names: Should contain following entries: + "i2c" for I2C clock, + "source" for I2C source (parent) clock, + "enable" for I2C module enable clock. +- clocks: Should contain a clock specifier for each entry in clock-names. +- clock-frequency: Constains desired I2C bus clock frequency in Hz. +- #address-cells: Should be 1 to describe address cells for I2C device address. +- #size-cells: Should be 0 means no size cell for I2C device address. + +Optional properties: +- Child nodes conforming to I2C bus binding + +Examples: +i2c0: i2c@70500000 { + compatible = "sprd,r8p0-i2c"; + reg = <0 0x70500000 0 0x1000>; + interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; + clock-names = "i2c", "source", "enable"; + clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>; + clock-frequency = <400000>; + #address-cells = <1>; + #size-cells = <0>; +}; +
This patch adds the binding documentation for Spreadtrum I2C controller device. Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com> --- Changes since v1: - No updates. --- Documentation/devicetree/bindings/i2c/i2c-sprd.txt | 31 ++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-sprd.txt