diff options
| author | Quentin Schulz <quentin.schulz@free-electrons.com> | 2017-12-05 17:46:46 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-12-07 12:08:12 +0300 |
| commit | e1190083b89bd0d53c83b647ff313d9f004c6772 (patch) | |
| tree | 7526e7e9f2ddfdc5e79b3a7cd0ec952db8f44d12 /drivers/pinctrl | |
| parent | a0a4b4c2420e0af6171a2be1965bdd983d35953c (diff) | |
| download | linux-e1190083b89bd0d53c83b647ff313d9f004c6772.tar.xz | |
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 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-axp209.c | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/drivers/pinctrl/pinctrl-axp209.c b/drivers/pinctrl/pinctrl-axp209.c index 9bb8722ba90f..22d3bb0bf927 100644 --- a/drivers/pinctrl/pinctrl-axp209.c +++ b/drivers/pinctrl/pinctrl-axp209.c @@ -19,6 +19,7 @@ #include <linux/mfd/axp20x.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/pinctrl/pinconf-generic.h> #include <linux/pinctrl/pinctrl.h> #include <linux/pinctrl/pinmux.h> @@ -41,6 +42,8 @@ #define AXP20X_MUX_GPIO_IN BIT(1) #define AXP20X_MUX_ADC BIT(2) +#define AXP813_MUX_ADC (BIT(2) | BIT(0)) + struct axp20x_pctrl_desc { const struct pinctrl_pin_desc *pins; unsigned int npins; @@ -74,6 +77,11 @@ static const struct pinctrl_pin_desc axp209_pins[] = { PINCTRL_PIN(2, "GPIO2"), }; +static const struct pinctrl_pin_desc axp813_pins[] = { + PINCTRL_PIN(0, "GPIO0"), + PINCTRL_PIN(1, "GPIO1"), +}; + static const struct axp20x_pctrl_desc axp20x_data = { .pins = axp209_pins, .npins = ARRAY_SIZE(axp209_pins), @@ -83,6 +91,15 @@ static const struct axp20x_pctrl_desc axp20x_data = { .adc_mux = AXP20X_MUX_ADC, }; +static const struct axp20x_pctrl_desc axp813_data = { + .pins = axp813_pins, + .npins = ARRAY_SIZE(axp813_pins), + .ldo_mask = BIT(0) | BIT(1), + .adc_mask = BIT(0), + .gpio_status_offset = 0, + .adc_mux = AXP813_MUX_ADC, +}; + static int axp20x_gpio_get_reg(unsigned int offset) { switch (offset) { @@ -357,10 +374,18 @@ static void axp20x_build_funcs_groups(struct platform_device *pdev) pctl->desc->pins); } +static const struct of_device_id axp20x_pctl_match[] = { + { .compatible = "x-powers,axp209-gpio", .data = &axp20x_data, }, + { .compatible = "x-powers,axp813-gpio", .data = &axp813_data, }, + { } +}; +MODULE_DEVICE_TABLE(of, axp20x_pctl_match); + static int axp20x_pctl_probe(struct platform_device *pdev) { struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent); struct axp20x_pctl *pctl; + struct device *dev = &pdev->dev; struct pinctrl_desc *pctrl_desc; int ret; @@ -388,9 +413,9 @@ static int axp20x_pctl_probe(struct platform_device *pdev) pctl->chip.set = axp20x_gpio_set; pctl->chip.direction_input = axp20x_gpio_input; pctl->chip.direction_output = axp20x_gpio_output; - pctl->chip.ngpio = 3; + pctl->chip.ngpio = pctl->desc->npins; - pctl->desc = &axp20x_data; + pctl->desc = (struct axp20x_pctrl_desc *)of_device_get_match_data(dev); pctl->regmap = axp20x->regmap; pctl->dev = &pdev->dev; @@ -435,12 +460,6 @@ static int axp20x_pctl_probe(struct platform_device *pdev) return 0; } -static const struct of_device_id axp20x_pctl_match[] = { - { .compatible = "x-powers,axp209-gpio" }, - { } -}; -MODULE_DEVICE_TABLE(of, axp20x_pctl_match); - static struct platform_driver axp20x_pctl_driver = { .probe = axp20x_pctl_probe, .driver = { |