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| author | Arnd Bergmann <arnd@arndb.de> | 2012-04-22 21:19:01 (GMT) |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-05-09 09:14:52 (GMT) |
| commit | 48bfdb216ed7a2a75aa2909869f3266b3736f88a (patch) | |
| tree | 2c81b923d38b4c0c914815246b1bd9f66f8de453 /Documentation/devicetree | |
| parent | 19f36bfa0021617ce07a79e186673d2da2258b60 (diff) | |
| parent | b41a216dafe4dd23c95cb4203de288f773a097a6 (diff) | |
| download | linux-48bfdb216ed7a2a75aa2909869f3266b3736f88a.tar.xz | |
Merge branch 'depends/i2c/lpc32xx' into next/dt
As a prerequisite for merging the lpc32xx DT changes, this
pulls in the depends/i2c/lpc32xx branch that contains
changes to the pnx-i2c driver, which are already in the
i2c tree. The branch is available also on
git://git.antcom.de/linux-2.6.git lpc32xx/i2c
Roland Stigge <stigge@antcom.de> writes:
this is the series of the 4 patches adding device tree support to i2c-pnx
(used by LPC32xx) that Wolfram Sang already applied to the i2c subsystem.
Since both drivers/i2c/ and mach-lpc32xx are touched here, there will
probably be conflicts that you need to be aware of.
I'm posting this again for arm-soc since the actual mach-lpc32xx specific
DT conversion builds upon those changes (see next pull request), especially
in arch/arm/mach-lpc32xx/common.c.
Wolfram already gave permission to merge this via arm-soc, but please
coordinate and tell me if I can help resolving this.
Further, this implicitly updates the next/dt branch to v3.4-rc4, which
causes a trivial conflict from a change in one branch in code that
gets removed in another.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: rebuilt branch due to drop of an early merge]
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/pnx.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/pnx.txt b/Documentation/devicetree/bindings/i2c/pnx.txt new file mode 100644 index 0000000..fe98ada --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/pnx.txt @@ -0,0 +1,36 @@ +* NXP PNX I2C Controller + +Required properties: + + - reg: Offset and length of the register set for the device + - compatible: should be "nxp,pnx-i2c" + - interrupts: configure one interrupt line + - #address-cells: always 1 (for i2c addresses) + - #size-cells: always 0 + - interrupt-parent: the phandle for the interrupt controller that + services interrupts for this device. + +Optional properties: + + - clock-frequency: desired I2C bus clock frequency in Hz, Default: 100000 Hz + +Examples: + + i2c1: i2c@400a0000 { + compatible = "nxp,pnx-i2c"; + reg = <0x400a0000 0x100>; + interrupt-parent = <&mic>; + interrupts = <51 0>; + #address-cells = <1>; + #size-cells = <0>; + }; + + i2c2: i2c@400a8000 { + compatible = "nxp,pnx-i2c"; + reg = <0x400a8000 0x100>; + interrupt-parent = <&mic>; + interrupts = <50 0>; + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <100000>; + }; |