On March 13, 2014 9:07:42 PM CDT, Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxx> wrote: >From: "Ivan T. Ivanov" <iivanov@xxxxxxxxxx> > >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@xxxxxxxxxx> >[bjorn: reformulated part of binding description > added version to compatible > cleaned up example] >Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxx> Acked-by: Rob Herring <robh@xxxxxxxxxx> >--- >.../devicetree/bindings/i2c/qcom,i2c-qup.txt | 46 >++++++++++++++++++++ > 1 file changed, 46 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..32ef64e >--- /dev/null >+++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt >@@ -0,0 +1,46 @@ >+Qualcomm Universal Peripheral (QUP) I2C controller >+ >+Required properties: >+ - compatible: Should be: >+ * "qcom,i2c-qup-v1.1.1" for 8660, 8960 and 8064. >+ * "qcom,i2c-qup-v2.1.1" for 8974 v1. >+ * "qcom,i2c-qup-v2.2.1" for 8974 v2 and later. >+ - reg: Should contain QUP register address and length. >+ - interrupts: Should contain I2C interrupt. >+ >+ - clocks: A list of phandles + clock-specifiers, one for each entry >in >+ clock-names. >+ - clock-names: Should contain: >+ * "core" for the core clock >+ * "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, >+ defaults to 100kHz if omitted. >+ >+Child nodes should conform to i2c bus binding. >+ >+Example: >+ >+ i2c@f9924000 { >+ compatible = "qcom,i2c-qup-v2.2.1"; >+ reg = <0xf9924000 0x1000>; >+ interrupts = <0 96 0>; >+ >+ clocks = <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>, <&gcc >GCC_BLSP1_AHB_CLK>; >+ clock-names = "core", "iface"; >+ >+ clock-frequency = <355000>; >+ >+ #address-cells = <1>; >+ #size-cells = <0>; >+ >+ dummy@60 { >+ compatible = "dummy"; >+ reg = <0x60>; >+ }; >+ }; >+ -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html