pinctrl: move gpio-axp209 to pinctrl

To prepare the driver for the upcoming pinctrl features, move the GPIO
driver AXP209 from GPIO to pinctrl subsystem.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 0 insertions, 189 deletions

diff --git a/drivers/gpio/gpio-axp209.c b/drivers/gpio/gpio-axp209.c
deleted file mode 100644
index 6ee7dc1418fa..000000000000
--- a/drivers/gpio/gpio-axp209.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * AXP20x GPIO driver
- *
- * Copyright (C) 2016 Maxime Ripard <maxime.ripard@free-electrons.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under  the terms of the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/bitops.h>
-#include <linux/device.h>
-#include <linux/gpio/driver.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/mfd/axp20x.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/regmap.h>
-#include <linux/slab.h>
-
-#define AXP20X_GPIO_FUNCTIONS		0x7
-#define AXP20X_GPIO_FUNCTION_OUT_LOW	0
-#define AXP20X_GPIO_FUNCTION_OUT_HIGH	1
-#define AXP20X_GPIO_FUNCTION_INPUT	2
-
-struct axp20x_gpio {
-	struct gpio_chip	chip;
-	struct regmap		*regmap;
-};
-
-static int axp20x_gpio_get_reg(unsigned int offset)
-{
-	switch (offset) {
-	case 0:
-		return AXP20X_GPIO0_CTRL;
-	case 1:
-		return AXP20X_GPIO1_CTRL;
-	case 2:
-		return AXP20X_GPIO2_CTRL;
-	}
-
-	return -EINVAL;
-}
-
-static int axp20x_gpio_input(struct gpio_chip *chip, unsigned int offset)
-{
-	struct axp20x_gpio *gpio = gpiochip_get_data(chip);
-	int reg;
-
-	reg = axp20x_gpio_get_reg(offset);
-	if (reg < 0)
-		return reg;
-
-	return regmap_update_bits(gpio->regmap, reg,
-				  AXP20X_GPIO_FUNCTIONS,
-				  AXP20X_GPIO_FUNCTION_INPUT);
-}
-
-static int axp20x_gpio_get(struct gpio_chip *chip, unsigned int offset)
-{
-	struct axp20x_gpio *gpio = gpiochip_get_data(chip);
-	unsigned int val;
-	int ret;
-
-	ret = regmap_read(gpio->regmap, AXP20X_GPIO20_SS, &val);
-	if (ret)
-		return ret;
-
-	return !!(val & BIT(offset + 4));
-}
-
-static int axp20x_gpio_get_direction(struct gpio_chip *chip,
-				     unsigned int offset)
-{
-	struct axp20x_gpio *gpio = gpiochip_get_data(chip);
-	unsigned int val;
-	int reg, ret;
-
-	reg = axp20x_gpio_get_reg(offset);
-	if (reg < 0)
-		return reg;
-
-	ret = regmap_read(gpio->regmap, reg, &val);
-	if (ret)
-		return ret;
-
-	/*
-	 * This shouldn't really happen if the pin is in use already,
-	 * or if it's not in use yet, it doesn't matter since we're
-	 * going to change the value soon anyway. Default to output.
-	 */
-	if ((val & AXP20X_GPIO_FUNCTIONS) > 2)
-		return 0;
-
-	/*
-	 * The GPIO directions are the three lowest values.
-	 * 2 is input, 0 and 1 are output
-	 */
-	return val & 2;
-}
-
-static int axp20x_gpio_output(struct gpio_chip *chip, unsigned int offset,
-			      int value)
-{
-	struct axp20x_gpio *gpio = gpiochip_get_data(chip);
-	int reg;
-
-	reg = axp20x_gpio_get_reg(offset);
-	if (reg < 0)
-		return reg;
-
-	return regmap_update_bits(gpio->regmap, reg,
-				  AXP20X_GPIO_FUNCTIONS,
-				  value ? AXP20X_GPIO_FUNCTION_OUT_HIGH
-				  : AXP20X_GPIO_FUNCTION_OUT_LOW);
-}
-
-static void axp20x_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			    int value)
-{
-	axp20x_gpio_output(chip, offset, value);
-}
-
-static int axp20x_gpio_probe(struct platform_device *pdev)
-{
-	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
-	struct axp20x_gpio *gpio;
-	int ret;
-
-	if (!of_device_is_available(pdev->dev.of_node))
-		return -ENODEV;
-
-	if (!axp20x) {
-		dev_err(&pdev->dev, "Parent drvdata not set\n");
-		return -EINVAL;
-	}
-
-	gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
-	if (!gpio)
-		return -ENOMEM;
-
-	gpio->chip.base			= -1;
-	gpio->chip.can_sleep		= true;
-	gpio->chip.parent		= &pdev->dev;
-	gpio->chip.label		= dev_name(&pdev->dev);
-	gpio->chip.owner		= THIS_MODULE;
-	gpio->chip.get			= axp20x_gpio_get;
-	gpio->chip.get_direction	= axp20x_gpio_get_direction;
-	gpio->chip.set			= axp20x_gpio_set;
-	gpio->chip.direction_input	= axp20x_gpio_input;
-	gpio->chip.direction_output	= axp20x_gpio_output;
-	gpio->chip.ngpio		= 3;
-
-	gpio->regmap = axp20x->regmap;
-
-	ret = devm_gpiochip_add_data(&pdev->dev, &gpio->chip, gpio);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to register GPIO chip\n");
-		return ret;
-	}
-
-	dev_info(&pdev->dev, "AXP209 GPIO driver loaded\n");
-
-	return 0;
-}
-
-static const struct of_device_id axp20x_gpio_match[] = {
-	{ .compatible = "x-powers,axp209-gpio" },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, axp20x_gpio_match);
-
-static struct platform_driver axp20x_gpio_driver = {
-	.probe		= axp20x_gpio_probe,
-	.driver = {
-		.name		= "axp20x-gpio",
-		.of_match_table	= axp20x_gpio_match,
-	},
-};
-
-module_platform_driver(axp20x_gpio_driver);
-
-MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
-MODULE_DESCRIPTION("AXP20x PMIC GPIO driver");
-MODULE_LICENSE("GPL");