On Tue, Sep 27, 2016 at 5:48 PM, Neil Armstrong [off-list ref] wrote:

Since the I2C sx150x GPIO expander driver uses platform_data to manage
the pins configurations, rewrite the driver as a pinctrl driver using
pinconf to get/set pin configurations from DT or debugfs.

The pinctrl driver is functionnally equivalent as the gpio-only driver
and can use DT for pinconf. The platform_data confirmation is dropped.

This patchset removed the gpio-only driver and selects the Pinctrl driver
config instead. This patchset also migrates the gpio dt-bindings to pinctrl
and add the pinctrl optional properties.

The driver was tested with a SX1509 device on a BeagleBone black with
interrupt support and on an X86_64 machine over an I2C to USB converter.

Signed-off-by: Neil Armstrong <redacted>

I think we're ready to apply this to the GPIO and pinctrl trees.
Could you:

- Rebase on top of v4.9-rc1 (fails to apply for me)
- Add the collected ACKs
- See if Andrey can provide an additional Test tag
- Resend

Also please look at Andreys patches to see if there is some good
inspiration for further cleanups.

Yours,
Linus Walleij