On Tue, Apr 7, 2009 at 1:20 AM, Wolfgang Grandegger <wg@xxxxxxxxxxxxxx> wrote:
> This patch documents the new bindings for the MPC I2C bus driver.
> Furthermore, it removes obsolete FSL device related definitions
> for I2C.
> It should go through the appropriate PowerPC maintainer(s) hands.
>
> Signed-off-by: Wolfgang Grandegger <wg@xxxxxxxxxxxxxx>
Acked-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
> ---
> Documentation/powerpc/dts-bindings/fsl/i2c.txt | 46 ++++++++++++++++---------
> include/linux/fsl_devices.h | 4 --
> 2 files changed, 31 insertions(+), 19 deletions(-)
>
> Index: linux-2.6-galak/Documentation/powerpc/dts-bindings/fsl/i2c.txt
> ===================================================================
> --- linux-2.6-galak.orig/Documentation/powerpc/dts-bindings/fsl/i2c.txt 2009-04-07 10:09:08.185721241 +0200
> +++ linux-2.6-galak/Documentation/powerpc/dts-bindings/fsl/i2c.txt 2009-04-07 10:09:15.413719535 +0200
> @@ -7,8 +7,10 @@
>
> Recommended properties :
>
> - - compatible : Should be "fsl-i2c" for parts compatible with
> - Freescale I2C specifications.
> + - 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".
> - 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
> @@ -16,17 +18,31 @@
> controller you have.
> - interrupt-parent : the phandle for the interrupt controller that
> services interrupts for this device.
> - - dfsrr : boolean; if defined, indicates that this I2C device has
> - a digital filter sampling rate register
> - - fsl5200-clocking : boolean; if defined, indicated that this device
> - uses the FSL 5200 clocking mechanism.
> -
> -Example :
> - i2c@3000 {
> - interrupt-parent = <40000>;
> - interrupts = <1b 3>;
> - reg = <3000 18>;
> - device_type = "i2c";
> - compatible = "fsl-i2c";
> - dfsrr;
> + - 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.
> +
> +Examples :
> +
> + 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;
> };
> +
> + 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>;
> + };
> +
> Index: linux-2.6-galak/include/linux/fsl_devices.h
> ===================================================================
> --- linux-2.6-galak.orig/include/linux/fsl_devices.h 2009-04-07 10:09:08.185721241 +0200
> +++ linux-2.6-galak/include/linux/fsl_devices.h 2009-04-07 10:09:15.414719119 +0200
> @@ -43,10 +43,6 @@
> *
> */
>
> -/* Flags related to I2C device features */
> -#define FSL_I2C_DEV_SEPARATE_DFSRR 0x00000001
> -#define FSL_I2C_DEV_CLOCK_5200 0x00000002
> -
> enum fsl_usb2_operating_modes {
> FSL_USB2_MPH_HOST,
> FSL_USB2_DR_HOST,
>
>
--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
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