Thread (10 messages) 10 messages, 5 authors, 2016-12-02

Re: [PATCH RESEND 2/2] gpio: axp209: add pinctrl support

From: Quentin Schulz <hidden>
Date: 2016-11-29 22:13:41
Also in: linux-arm-kernel, linux-gpio, lkml

Hi Linus,

On 24/11/2016 15:17, Linus Walleij wrote:
On Wed, Nov 23, 2016 at 3:11 PM, Quentin Schulz
[off-list ref] wrote:
quoted
The GPIOs present in the AXP209 PMIC have multiple functions. They
typically allow a pin to be used as GPIO input or output and can also be
used as ADC or regulator for example.[1]

This adds the possibility to use all functions of the GPIOs present in
the AXP209 PMIC thanks to pinctrl subsystem.

[1] see registers 90H, 92H and 93H at
    http://dl.linux-sunxi.org/AXP/AXP209_Datasheet_v1.0en.pdf

Signed-off-by: Quentin Schulz <redacted>
I need Maxime's review on this patch.
quoted
 .../devicetree/bindings/gpio/gpio-axp209.txt       |  28 +-
Also move the bindings to pinctrl/pinctrl-axp209.txt
quoted
 drivers/gpio/gpio-axp209.c                         | 551 ++++++++++++++++++---
Combined drivers should be in drivers/pinctrl/*.

Make a separate patch moving the driver to
drivers/pinctrl/pinctrl-axp209.c (remember -M to git format-patch)
augment Kconfig and Makefile in both subsystems and make
these patches on top of that.
So basically:

 - first patch for adding pinctrl to the existing driver
 - second patch for moving the driver and binding from gpio to pinctrl
subsystem
 - third patch for both removing Kconfig entry and Makefile rule from
gpio subsystem, and adding a Kconfig entry and a Makefile rule in
pinctrl subsystem

Is that what you want?

Thanks,
Quentin
I will deal with cross-merging the result between the GPIO
and pin control trees.

Yours,
Linus Walleij
-- 
Quentin Schulz, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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