| Message ID | 20180227110107.30259-2-ard.biesheuvel@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | add support for Socionext SynQuacer I2C controller | expand |
On Tue, Feb 27, 2018 at 5:01 AM, Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote: > Add a binding for the I2C controller that can be found in the Socionext > SynQuacer SoC. Note that this is the exact same IP as the Fujitsu F_I2C. Is there a binding for that? Should be the same doc if so. > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> > --- > Documentation/devicetree/bindings/i2c/i2c-synquacer.txt | 29 ++++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt b/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt > new file mode 100644 > index 000000000000..4d0bb6a71211 > --- /dev/null > +++ b/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt > @@ -0,0 +1,29 @@ > +Socionext SynQuacer I2C > + > +Required properties: > +- compatible : Must be "socionext,synquacer-i2c" > +- reg : Offset and length of the register set for the device > +- interrupts : the interrupt specifier How many? > +- #address-cells : Must be <1>; > +- #size-cells : Must be <0>; > +- clock-names : Must contain "pclk". > +- clocks : Must contain an entry for each name in clock-names. > + (See the common clock bindings.) > + > +Optional properties: > +- clock-frequency : Desired I2C bus clock frequency in Hz. As only Normal and > + Fast modes are supported, possible values are 100000 and > + 400000. > + > +Example : > + > + i2c@51210000 { > + compatible = "socionext,synquacer-i2c"; > + reg = <0x51210000 0x1000>; > + interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>; > + #address-cells = <1>; > + #size-cells = <0>; > + clock-names = "pclk"; > + clocks = <&clk_i2c>; > + clock-frequency = <400000>; > + }; > -- > 2.11.0 >
On 1 March 2018 at 14:28, Rob Herring <robh+dt@kernel.org> wrote: > On Tue, Feb 27, 2018 at 5:01 AM, Ard Biesheuvel > <ard.biesheuvel@linaro.org> wrote: >> Add a binding for the I2C controller that can be found in the Socionext >> SynQuacer SoC. Note that this is the exact same IP as the Fujitsu F_I2C. > > Is there a binding for that? Should be the same doc if so. > No, there isn't. That support never made it upstream, but I thought it'd be useful to mention it given the Fujitsu -> Socionext name change. >> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> >> --- >> Documentation/devicetree/bindings/i2c/i2c-synquacer.txt | 29 ++++++++++++++++++++ >> 1 file changed, 29 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt b/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt >> new file mode 100644 >> index 000000000000..4d0bb6a71211 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt >> @@ -0,0 +1,29 @@ >> +Socionext SynQuacer I2C >> + >> +Required properties: >> +- compatible : Must be "socionext,synquacer-i2c" >> +- reg : Offset and length of the register set for the device >> +- interrupts : the interrupt specifier > > How many? > A single one, will change >> +- #address-cells : Must be <1>; >> +- #size-cells : Must be <0>; >> +- clock-names : Must contain "pclk". >> +- clocks : Must contain an entry for each name in clock-names. >> + (See the common clock bindings.) >> + >> +Optional properties: >> +- clock-frequency : Desired I2C bus clock frequency in Hz. As only Normal and >> + Fast modes are supported, possible values are 100000 and >> + 400000. >> + >> +Example : >> + >> + i2c@51210000 { >> + compatible = "socionext,synquacer-i2c"; >> + reg = <0x51210000 0x1000>; >> + interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>; >> + #address-cells = <1>; >> + #size-cells = <0>; >> + clock-names = "pclk"; >> + clocks = <&clk_i2c>; >> + clock-frequency = <400000>; >> + }; >> -- >> 2.11.0 >>
diff --git a/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt b/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt new file mode 100644 index 000000000000..4d0bb6a71211 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-synquacer.txt @@ -0,0 +1,29 @@ +Socionext SynQuacer I2C + +Required properties: +- compatible : Must be "socionext,synquacer-i2c" +- reg : Offset and length of the register set for the device +- interrupts : the interrupt specifier +- #address-cells : Must be <1>; +- #size-cells : Must be <0>; +- clock-names : Must contain "pclk". +- clocks : Must contain an entry for each name in clock-names. + (See the common clock bindings.) + +Optional properties: +- clock-frequency : Desired I2C bus clock frequency in Hz. As only Normal and + Fast modes are supported, possible values are 100000 and + 400000. + +Example : + + i2c@51210000 { + compatible = "socionext,synquacer-i2c"; + reg = <0x51210000 0x1000>; + interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>; + #address-cells = <1>; + #size-cells = <0>; + clock-names = "pclk"; + clocks = <&clk_i2c>; + clock-frequency = <400000>; + };
Add a binding for the I2C controller that can be found in the Socionext SynQuacer SoC. Note that this is the exact same IP as the Fujitsu F_I2C. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> --- Documentation/devicetree/bindings/i2c/i2c-synquacer.txt | 29 ++++++++++++++++++++ 1 file changed, 29 insertions(+)