From: Wolfgang Grandegger <wg@xxxxxxx> This patch adds the MPC5121 to the list of supported devices, enhances the doc of the "clock-frequency" property and removes the obsolete "cell-index" property from the example nodes. Furthermore and example for the MPC5121 has been added. Signed-off-by: Wolfgang Grandegger <wg@xxxxxxx> Reviewed-by: Wolfram Sang <w.sang@xxxxxxxxxxxxxx> --- Documentation/powerpc/dts-bindings/fsl/i2c.txt | 30 +++++++++++++++++++---- 1 files changed, 24 insertions(+), 6 deletions(-) diff --git a/Documentation/powerpc/dts-bindings/fsl/i2c.txt b/Documentation/powerpc/dts-bindings/fsl/i2c.txt index b6d2e21..2f62dae 100644 --- a/Documentation/powerpc/dts-bindings/fsl/i2c.txt +++ b/Documentation/powerpc/dts-bindings/fsl/i2c.txt @@ -9,8 +9,9 @@ Recommended properties : - compatible : compatibility list with 2 entries, the first should be "fsl,CHIP-i2c" where CHIP is the name of a compatible processor, - e.g. mpc8313, mpc8543, mpc8544, mpc5200 or mpc5200b. The second one - should be "fsl-i2c". + e.g. mpc8313, mpc8543, mpc8544, mpc5121, mpc5200 or mpc5200b. The + second one should be "fsl-i2c". For the mpc5121, an additional node + "fsl,mpc5121-i2c-ctrl" is required as shown in the example below. - interrupts : <a b> where a is the interrupt number and b is a field that represents an encoding of the sense and level information for the interrupt. This should be encoded based on @@ -20,29 +21,46 @@ Recommended properties : services interrupts for this device. - fsl,preserve-clocking : boolean; if defined, the clock settings from the bootloader are preserved (not touched). - - clock-frequency : desired I2C bus clock frequency in Hz. + - clock-frequency : desired I2C bus clock frequency in Hz. If this + property and "fsl,preserve-clocking" is not defined, a safe fixed + clock divider value is used (resulting in a small clock frequency). Examples : + /* MPC5121 based board */ + i2c@1740 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,mpc5121-i2c", "fsl-i2c"; + reg = <0x1740 0x20>; + interrupts = <11 0x8>; + interrupt-parent = <&ipic>; + clock-frequency = <100000>; + }; + + i2ccontrol@1760 { + compatible = "fsl,mpc5121-i2c-ctrl"; + reg = <0x1760 0x8>; + }; + + /* MPC5200B based board */ i2c@3d00 { #address-cells = <1>; #size-cells = <0>; compatible = "fsl,mpc5200b-i2c","fsl,mpc5200-i2c","fsl-i2c"; - cell-index = <0>; reg = <0x3d00 0x40>; interrupts = <2 15 0>; interrupt-parent = <&mpc5200_pic>; fsl,preserve-clocking; }; + /* MPC8544 base board */ i2c@3100 { #address-cells = <1>; #size-cells = <0>; - cell-index = <1>; compatible = "fsl,mpc8544-i2c", "fsl-i2c"; reg = <0x3100 0x100>; interrupts = <43 2>; interrupt-parent = <&mpic>; clock-frequency = <400000>; }; - -- 1.6.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html