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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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