| Message ID | 1389999819-10648-2-git-send-email-bjorn.andersson@sonymobile.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
On Fri, Jan 17, 2014 at 5:03 PM, Bjorn Andersson <bjorn.andersson@sonymobile.com> wrote: > From: "Ivan T. Ivanov" <iivanov@mm-sol.com> > > The Qualcomm Universal Peripherial (QUP) wraps I2C mini-core and > provide input and output FIFO's for it. I2C controller can operate > as master with supported bus speeds of 100Kbps and 400Kbps. > > Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> > [bjorn: reformulated part of binding description and cleaned up example] > Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> > --- Patch history? > .../devicetree/bindings/i2c/qcom,i2c-qup.txt | 41 ++++++++++++++++++++++ > 1 file changed, 41 insertions(+) > create mode 100644 Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt > > diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt > new file mode 100644 > index 0000000..a99711b > --- /dev/null > +++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt > @@ -0,0 +1,41 @@ > +Qualcomm Universal Peripheral (QUP) I2C controller > + > +Required properties: > + - compatible: Should be "qcom,i2c-qup". Seems a bit generic. All versions of the IP are exactly the same? "qcom,<chip>-i2c-qup" would be better. > + - reg: Should contain QUP register address and length. > + - interrupts: Should contain I2C interrupt. > + > + - clocks: Should contain the core clock and the AHB clock. > + - clock-names: Should be "core" for the core clock and "iface" for the > + AHB clock. > + > + - #address-cells: Should be <1> Address cells for i2c device address > + - #size-cells: Should be <0> as i2c addresses have no size component > + > +Optional properties: > + - clock-frequency: Should specify the desired i2c bus clock frequency in Hz, > + default is 100kHz if omitted. > + > +Child nodes should conform to i2c bus binding. > + > +Example: > + > + i2c2: i2c@f9924000 { > + compatible = "qcom,i2c-qup"; > + reg = <0xf9924000 0x1000>; > + interrupts = <0 96 0>; > + > + clocks = <&gcc_blsp1_qup2_i2c_apps_clk>, <&gcc_blsp1_ahb_clk>; > + clock-names = "core", "iface"; > + > + clock-frequency = <355000>; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + dummy@60 { > + compatible = "dummy"; > + reg = <0x60>; > + }; > + }; > + > -- > 1.8.2.2 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt new file mode 100644 index 0000000..a99711b --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt @@ -0,0 +1,41 @@ +Qualcomm Universal Peripheral (QUP) I2C controller + +Required properties: + - compatible: Should be "qcom,i2c-qup". + - reg: Should contain QUP register address and length. + - interrupts: Should contain I2C interrupt. + + - clocks: Should contain the core clock and the AHB clock. + - clock-names: Should be "core" for the core clock and "iface" for the + AHB clock. + + - #address-cells: Should be <1> Address cells for i2c device address + - #size-cells: Should be <0> as i2c addresses have no size component + +Optional properties: + - clock-frequency: Should specify the desired i2c bus clock frequency in Hz, + default is 100kHz if omitted. + +Child nodes should conform to i2c bus binding. + +Example: + + i2c2: i2c@f9924000 { + compatible = "qcom,i2c-qup"; + reg = <0xf9924000 0x1000>; + interrupts = <0 96 0>; + + clocks = <&gcc_blsp1_qup2_i2c_apps_clk>, <&gcc_blsp1_ahb_clk>; + clock-names = "core", "iface"; + + clock-frequency = <355000>; + + #address-cells = <1>; + #size-cells = <0>; + + dummy@60 { + compatible = "dummy"; + reg = <0x60>; + }; + }; +