[PATCH v3 0/4] gpio: driver for the RPi3 GPIO expander

Baruch Siach baruch at tkos.co.il
Tue Feb 6 08:27:59 PST 2018


Hi Linus,

On Tue, Feb 06, 2018 at 02:42:48PM +0100, Linus Walleij wrote:
> On Tue, Jan 16, 2018 at 1:45 PM, Baruch Siach <baruch at tkos.co.il> wrote:
> 
> > The Raspberry Pi 3 has a GPIO expander that controls, among others, the
> > activity LED, and the camera connector GPIOs. The GPIO expander on an I2C bus
> > that is not directly controlled from the ARM core. The VC4 firmware controls
> > the I2C bus, and allows the ARM core to set/get GPIO settings over its mailbox
> > interface.
> >
> > This series adds support for the RPi3 expander.
> >
> > The driver is ported from the downstream kernel at
> > https://github.com/raspberrypi/linux/, branch rpi-4.9.y.
> >
> > Changes in v3:
> >
> >   * Kconfig tweaks
> >   * Check rpi_exp_gpio_get_polarity() return value
> >   * Redundant header removal
> >   * Redundant platform_set_drvdata() call removal
> >   * Small coding style changes
> 
> All is looking pretty good. I see Rob had some last minute comments,
> but please rebase and repost post v4.16-rc1 so we can get this merged,
> we need to get this upstream.

I was about to send v4 when I saw your email. I based v4 on current LinusT's 
tree as of e237f98a9c. I guess that affected files will not change before 
v4.16-rc1, but I can wait a few more days for -rc1.

baruch

-- 
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