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    SubjectRe: [PATCH v7 1/3] dt-bindings: Add I2C bindings for mt65xx/mt81xx.
    On Wed, May 06, 2015 at 04:37:05PM +0800, Eddie Huang wrote:
    > From: Xudong Chen <xudong.chen@mediatek.com>
    >
    > Add devicetree bindings for Mediatek Soc I2C driver.
    >
    > Signed-off-by: Xudong Chen <xudong.chen@mediatek.com>
    > Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>

    Sascha, Uwe: Can you ack these patches if you are fine with them?
    Would be nice since you did quite some review and were involved in the
    "have-pmic" binding discussion.

    Thanks,

    Wolfram

    > ---
    > .../devicetree/bindings/i2c/i2c-mt6577.txt | 41 ++++++++++++++++++++++
    > 1 file changed, 41 insertions(+)
    > create mode 100644 Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
    >
    > diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt b/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
    > new file mode 100644
    > index 0000000..0ce6fa3
    > --- /dev/null
    > +++ b/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
    > @@ -0,0 +1,41 @@
    > +* Mediatek's I2C controller
    > +
    > +The Mediatek's I2C controller is used to interface with I2C devices.
    > +
    > +Required properties:
    > + - compatible: value should be either of the following.
    > + (a) "mediatek,mt6577-i2c", for i2c compatible with mt6577 i2c.
    > + (b) "mediatek,mt6589-i2c", for i2c compatible with mt6589 i2c.
    > + (c) "mediatek,mt8127-i2c", for i2c compatible with mt8127 i2c.
    > + (d) "mediatek,mt8135-i2c", for i2c compatible with mt8135 i2c.
    > + (e) "mediatek,mt8173-i2c", for i2c compatible with mt8173 i2c.
    > + - reg: physical base address of the controller and dma base, length of memory
    > + mapped region.
    > + - interrupts: interrupt number to the cpu.
    > + - clock-div: the fixed value for frequency divider of clock source in i2c
    > + module. Each IC may be different.
    > + - clocks: clock name from clock manager
    > + - clock-names: Must include "main" and "dma", if enable have-pmic need include
    > + "pmic" extra.
    > +
    > +Optional properties:
    > + - clock-frequency: Frequency in Hz of the bus when transfer, the default value
    > + is 100000.
    > + - mediatek,have-pmic: platform can control i2c form special pmic side.
    > + Only mt6589 and mt8135 support this feature.
    > + - mediatek,use-push-pull: IO config use push-pull mode.
    > +
    > +Example:
    > +
    > + i2c0: i2c@1100d000 {
    > + compatible = "mediatek,mt6577-i2c";
    > + reg = <0x1100d000 0x70>,
    > + <0x11000300 0x80>;
    > + interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
    > + clock-frequency = <400000>;
    > + mediatek,have-pmic;
    > + clock-div = <16>;
    > + clocks = <&i2c0_ck>, <&ap_dma_ck>;
    > + clock-names = "main", "dma";
    > + };
    > +
    > --
    > 1.8.1.1.dirty
    >


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