From f17aea430fff4b95ac94e8625096cd82544e9054 Mon Sep 17 00:00:00 2001 From: Quentin Schulz Date: Tue, 5 Dec 2017 15:46:42 +0100 Subject: dt-bindings: gpio: gpio-axp209: add pinctrl features The X-Powers AXP209 has 3 GPIOs. GPIO0/1 can each act either as a GPIO, an ADC or a LDO regulator. GPIO2 can only act as a GPIO. This adds the pinctrl features to the driver so GPIO0/1 can be used as ADC or LDO regulator. Signed-off-by: Quentin Schulz Acked-by: Rob Herring Acked-by: Maxime Ripard Signed-off-by: Linus Walleij --- .../devicetree/bindings/gpio/gpio-axp209.txt | 36 +++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/gpio/gpio-axp209.txt b/Documentation/devicetree/bindings/gpio/gpio-axp209.txt index a6611304dd3c..0d77597c3f92 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-axp209.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-axp209.txt @@ -1,8 +1,13 @@ -AXP209 GPIO controller +AXP209 GPIO & pinctrl controller This driver follows the usual GPIO bindings found in Documentation/devicetree/bindings/gpio/gpio.txt +This driver follows the usual pinctrl bindings found in +Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt + +This driver employs the per-pin muxing pattern. + Required properties: - compatible: Should be "x-powers,axp209-gpio" - #gpio-cells: Should be two. The first cell is the pin number and the @@ -28,3 +33,32 @@ axp209: pmic@34 { #gpio-cells = <2>; }; }; + +The GPIOs can be muxed to other functions and therefore, must be a subnode of +axp_gpio. + +Example: + +&axp_gpio { + gpio0_adc: gpio0-adc { + pins = "GPIO0"; + function = "adc"; + }; +}; + +&example_node { + pinctrl-names = "default"; + pinctrl-0 = <&gpio0_adc>; +}; + +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). + +GPIO | Functions +------------------------ +GPIO0 | gpio_in, gpio_out, ldo, adc +GPIO1 | gpio_in, gpio_out, ldo, adc +GPIO2 | gpio_in, gpio_out -- cgit v1.2.3 From e1190083b89bd0d53c83b647ff313d9f004c6772 Mon Sep 17 00:00:00 2001 From: Quentin Schulz Date: Tue, 5 Dec 2017 15:46:46 +0100 Subject: 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 Acked-by: Maxime Ripard Acked-by: Rob Herring Signed-off-by: Linus Walleij --- .../devicetree/bindings/gpio/gpio-axp209.txt | 13 +++++++- drivers/pinctrl/pinctrl-axp209.c | 35 +++++++++++++++++----- 2 files changed, 39 insertions(+), 9 deletions(-) (limited to 'Documentation/devicetree') 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 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 #include #include +#include #include #include #include @@ -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 = { -- cgit v1.2.3 From caa92ee84ba02aa2619b087d81a9e2e54a2235fd Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 19 Dec 2017 17:03:42 +0100 Subject: dt-bindings: gpio: rcar: Correct SoC family name for R8A7778 R8A7778 is R-Car (not R-Mobile) M1. Signed-off-by: Geert Uytterhoeven Acked-by: Simon Horman Reviewed-by: Rob Herring Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt index a7ac460ad657..9474138d776e 100644 --- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt +++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt @@ -5,7 +5,7 @@ Required Properties: - compatible: should contain one or more of the following: - "renesas,gpio-r8a7743": for R8A7743 (RZ/G1M) compatible GPIO controller. - "renesas,gpio-r8a7745": for R8A7745 (RZ/G1E) compatible GPIO controller. - - "renesas,gpio-r8a7778": for R8A7778 (R-Mobile M1) compatible GPIO controller. + - "renesas,gpio-r8a7778": for R8A7778 (R-Car M1) compatible GPIO controller. - "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller. - "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller. - "renesas,gpio-r8a7791": for R8A7791 (R-Car M2-W) compatible GPIO controller. -- cgit v1.2.3