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    SubjectRe: [PATCH 0/7 RFC] Handle I2C GPIO controllers with the OF (was: pca9539 I2C gpio expander)
    Anton Vorontsov wrote:
    > Hi all,
    > Recently there was a question about I2C GPIO controllers and how should
    > we handle them with the OpenFirmware and such.
    > Here is the attempt to "connect" I2C GPIO controllers to the
    > "OpenFirmware" device tree, without writing an OF-specific bindings
    > for each driver.
    > The salt is in these two patches:
    > [PATCH 3/7] of: fill the archdata for I2C devices
    > ^ Here we're storing the device tree node into the I2C device.
    > [PATCH 5/7] of/gpio: implement of_dev_gpiochip_{add,remove} calls
    > ^ And here we extracting the the stored node to put the registered
    > of_gpio_chip into that node.
    > How does it look?

    I've just tested this with a pca9539 chip attached to my Sequoia board,
    and it works perfectly for me. I don't have the mcu_mpc8349emitx.c file
    in my tree, so I was not able to apply part 7 of 7, but the rest looks
    fine. Thanks for doing this.

    Acked by: Steve Falco <>

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      Last update: 2008-10-17 18:31    [W:0.022 / U:4.456 seconds]
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