diff options
| author |   Quentin Schulz <quentin.schulz@free-electrons.com> | 2017-12-05 15:46:46 +0100 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2017-12-07 10:08:12 +0100 |
| commit | e1190083b89bd0d53c83b647ff313d9f004c6772 (patch) | |
| tree | 7526e7e9f2ddfdc5e79b3a7cd0ec952db8f44d12 /Documentation/devicetree/bindings/gpio/gpio-axp209.txt | |
| parent | pinctrl: axp209: add programmable ADC muxing value (diff) | |
| download | wireguard-linux-e1190083b89bd0d53c83b647ff313d9f004c6772.tar.xz wireguard-linux-e1190083b89bd0d53c83b647ff313d9f004c6772.zip | |
pinctrl: axp209: add support for AXP813 GPIOs
The AXP813 has only two GPIOs. GPIO0 can either be used as a GPIO, an
LDO regulator or an ADC. GPIO1 can be used either as a GPIO or an LDO
regulator.
Moreover, the status bit of the GPIOs when in input mode is not offset
by 4 unlike the AXP209.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/gpio/gpio-axp209.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-axp209.txt | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-axp209.txt b/Documentation/devicetree/bindings/gpio/gpio-axp209.txt index 0d77597c3f92..fc42b2caa06d 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-axp209.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-axp209.txt @@ -9,7 +9,9 @@ Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt This driver employs the per-pin muxing pattern. Required properties: -- compatible: Should be "x-powers,axp209-gpio" +- compatible: Should be one of: + - "x-powers,axp209-gpio" + - "x-powers,axp813-gpio" - #gpio-cells: Should be two. The first cell is the pin number and the second is the GPIO flags. - gpio-controller: Marks the device node as a GPIO controller. @@ -57,8 +59,17 @@ GPIOs and their functions Each GPIO is independent from the other (i.e. GPIO0 in gpio_in function does not force GPIO1 and GPIO2 to be in gpio_in function as well). +axp209 +------ GPIO | Functions ------------------------ GPIO0 | gpio_in, gpio_out, ldo, adc GPIO1 | gpio_in, gpio_out, ldo, adc GPIO2 | gpio_in, gpio_out + +axp813 +------ +GPIO | Functions +------------------------ +GPIO0 | gpio_in, gpio_out, ldo, adc +GPIO1 | gpio_in, gpio_out, ldo |