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TOMOYO Linux Cross Reference
Linux/Documentation/devicetree/bindings/i2c/i2c-davinci.txt

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Diff markup

Differences between /Documentation/devicetree/bindings/i2c/i2c-davinci.txt (Architecture m68k) and /Documentation/devicetree/bindings/i2c/i2c-davinci.txt (Architecture sparc64)


  1 * Texas Instruments Davinci/Keystone I2C            1 * Texas Instruments Davinci/Keystone I2C
  2                                                     2 
  3 This file provides information, what the devic      3 This file provides information, what the device node for the
  4 davinci/keystone i2c interface contains.            4 davinci/keystone i2c interface contains.
  5                                                     5 
  6 Required properties:                                6 Required properties:
  7 - compatible: "ti,davinci-i2c" or "ti,keystone      7 - compatible: "ti,davinci-i2c" or "ti,keystone-i2c";
  8 - reg : Offset and length of the register set       8 - reg : Offset and length of the register set for the device
  9 - clocks: I2C functional clock phandle.             9 - clocks: I2C functional clock phandle.
 10           For 66AK2G this property should be s     10           For 66AK2G this property should be set per binding,
 11           Documentation/devicetree/bindings/cl     11           Documentation/devicetree/bindings/clock/ti,sci-clk.yaml
 12                                                    12 
 13 SoC-specific Required Properties:                  13 SoC-specific Required Properties:
 14                                                    14 
 15 The following are mandatory properties for Key     15 The following are mandatory properties for Keystone 2 66AK2G SoCs only:
 16                                                    16 
 17 - power-domains:        Should contain a phand     17 - power-domains:        Should contain a phandle to a PM domain provider node
 18                         and an args specifier      18                         and an args specifier containing the I2C device id
 19                         value. This property i     19                         value. This property is as per the binding,
 20                         Documentation/devicetr     20                         Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
 21                                                    21 
 22 Recommended properties :                           22 Recommended properties :
 23 - interrupts : standard interrupt property.        23 - interrupts : standard interrupt property.
 24 - clock-frequency : desired I2C bus clock freq     24 - clock-frequency : desired I2C bus clock frequency in Hz.
 25 - ti,has-pfunc: boolean; if defined, it indica     25 - ti,has-pfunc: boolean; if defined, it indicates that SoC supports PFUNC
 26         registers. PFUNC registers allow to sw     26         registers. PFUNC registers allow to switch I2C pins to function as
 27         GPIOs, so they can be toggled manually     27         GPIOs, so they can be toggled manually.
 28                                                    28 
 29 Example (enbw_cmc board):                          29 Example (enbw_cmc board):
 30         i2c@1c22000 {                              30         i2c@1c22000 {
 31                 compatible = "ti,davinci-i2c";     31                 compatible = "ti,davinci-i2c";
 32                 reg = <0x22000 0x1000>;            32                 reg = <0x22000 0x1000>;
 33                 clock-frequency = <100000>;        33                 clock-frequency = <100000>;
 34                 interrupts = <15>;                 34                 interrupts = <15>;
 35                 interrupt-parent = <&intc>;        35                 interrupt-parent = <&intc>;
 36                 #address-cells = <1>;              36                 #address-cells = <1>;
 37                 #size-cells = <0>;                 37                 #size-cells = <0>;
 38                                                    38 
 39                 dtt@48 {                           39                 dtt@48 {
 40                         compatible = "national     40                         compatible = "national,lm75";
 41                         reg = <0x48>;              41                         reg = <0x48>;
 42                 };                                 42                 };
 43         };                                         43         };
                                                      

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