// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2009-2011 Gabor Juhos <[email protected]> * Copyright (C) 2013 John Crispin <[email protected]> */ #include <linux/err.h> #include <linux/gpio/driver.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/spinlock.h> #define MTK_BANK_CNT … #define MTK_BANK_WIDTH … #define GPIO_BANK_STRIDE … #define GPIO_REG_CTRL … #define GPIO_REG_POL … #define GPIO_REG_DATA … #define GPIO_REG_DSET … #define GPIO_REG_DCLR … #define GPIO_REG_REDGE … #define GPIO_REG_FEDGE … #define GPIO_REG_HLVL … #define GPIO_REG_LLVL … #define GPIO_REG_STAT … #define GPIO_REG_EDGE … struct mtk_gc { … }; /** * struct mtk - state container for * data of the platform driver. It is 3 * separate gpio-chip each one with its * own irq_chip. * @dev: device instance * @base: memory base address * @gpio_irq: irq number from the device tree * @gc_map: array of the gpio chips */ struct mtk { … }; static inline struct mtk_gc * to_mediatek_gpio(struct gpio_chip *chip) { … } static inline void mtk_gpio_w32(struct mtk_gc *rg, u32 offset, u32 val) { … } static inline u32 mtk_gpio_r32(struct mtk_gc *rg, u32 offset) { … } static irqreturn_t mediatek_gpio_irq_handler(int irq, void *data) { … } static void mediatek_gpio_irq_unmask(struct irq_data *d) { … } static void mediatek_gpio_irq_mask(struct irq_data *d) { … } static int mediatek_gpio_irq_type(struct irq_data *d, unsigned int type) { … } static int mediatek_gpio_xlate(struct gpio_chip *chip, const struct of_phandle_args *spec, u32 *flags) { … } static const struct irq_chip mt7621_irq_chip = …; static int mediatek_gpio_bank_probe(struct device *dev, int bank) { … } static int mediatek_gpio_probe(struct platform_device *pdev) { … } static const struct of_device_id mediatek_gpio_match[] = …; MODULE_DEVICE_TABLE(of, mediatek_gpio_match); static struct platform_driver mediatek_gpio_driver = …; builtin_platform_driver(…) …;
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