// SPDX-License-Identifier: GPL-2.0 /* * MediaTek Pinctrl Paris Driver, which implement the vendor per-pin * bindings for MediaTek SoC. * * Copyright (C) 2018 MediaTek Inc. * Author: Sean Wang <[email protected]> * Zhiyong Tao <[email protected]> * Hongzhou.Yang <[email protected]> */ #include <linux/gpio/driver.h> #include <linux/module.h> #include <linux/seq_file.h> #include <linux/pinctrl/consumer.h> #include <dt-bindings/pinctrl/mt65xx.h> #include "pinctrl-paris.h" #define PINCTRL_PINCTRL_DEV … /* Custom pinconf parameters */ #define MTK_PIN_CONFIG_TDSEL … #define MTK_PIN_CONFIG_RDSEL … #define MTK_PIN_CONFIG_PU_ADV … #define MTK_PIN_CONFIG_PD_ADV … #define MTK_PIN_CONFIG_DRV_ADV … static const struct pinconf_generic_params mtk_custom_bindings[] = …; #ifdef CONFIG_DEBUG_FS static const struct pin_config_item mtk_conf_items[] = …; #endif static const char * const mtk_gpio_functions[] = …; /* * This section supports converting to/from custom MTK_PIN_CONFIG_DRV_ADV * and standard PIN_CONFIG_DRIVE_STRENGTH_UA pin configs. * * The custom value encodes three hardware bits as follows: * * | Bits | * | 2 (E1) | 1 (E0) | 0 (EN) | drive strength (uA) * ------------------------------------------------ * | x | x | 0 | disabled, use standard drive strength * ------------------------------------- * | 0 | 0 | 1 | 125 uA * | 0 | 1 | 1 | 250 uA * | 1 | 0 | 1 | 500 uA * | 1 | 1 | 1 | 1000 uA */ static const int mtk_drv_adv_uA[] = …; static int mtk_drv_adv_to_uA(int val) { … } static int mtk_drv_uA_to_adv(int val) { … } static int mtk_pinmux_gpio_request_enable(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int pin) { … } static int mtk_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int pin, bool input) { … } static int mtk_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin, unsigned long *config) { … } static int mtk_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, enum pin_config_param param, u32 arg) { … } static struct mtk_pinctrl_group * mtk_pctrl_find_group_by_pin(struct mtk_pinctrl *hw, u32 pin) { … } static const struct mtk_func_desc * mtk_pctrl_find_function_by_pin(struct mtk_pinctrl *hw, u32 pin_num, u32 fnum) { … } static bool mtk_pctrl_is_function_valid(struct mtk_pinctrl *hw, u32 pin_num, u32 fnum) { … } static int mtk_pctrl_dt_node_to_map_func(struct mtk_pinctrl *pctl, u32 pin, u32 fnum, struct mtk_pinctrl_group *grp, struct pinctrl_map **map, unsigned *reserved_maps, unsigned *num_maps) { … } static int mtk_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, struct device_node *node, struct pinctrl_map **map, unsigned *reserved_maps, unsigned *num_maps) { … } static int mtk_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev, struct device_node *np_config, struct pinctrl_map **map, unsigned *num_maps) { … } static int mtk_pctrl_get_groups_count(struct pinctrl_dev *pctldev) { … } static const char *mtk_pctrl_get_group_name(struct pinctrl_dev *pctldev, unsigned group) { … } static int mtk_pctrl_get_group_pins(struct pinctrl_dev *pctldev, unsigned group, const unsigned **pins, unsigned *num_pins) { … } static int mtk_hw_get_value_wrap(struct mtk_pinctrl *hw, unsigned int gpio, int field) { … } #define mtk_pctrl_get_pinmux(hw, gpio) … #define mtk_pctrl_get_direction(hw, gpio) … #define mtk_pctrl_get_out(hw, gpio) … #define mtk_pctrl_get_in(hw, gpio) … #define mtk_pctrl_get_smt(hw, gpio) … #define mtk_pctrl_get_ies(hw, gpio) … #define mtk_pctrl_get_driving(hw, gpio) … ssize_t mtk_pctrl_show_one_pin(struct mtk_pinctrl *hw, unsigned int gpio, char *buf, unsigned int buf_len) { … } EXPORT_SYMBOL_GPL(…); #define PIN_DBG_BUF_SZ … static void mtk_pctrl_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned int gpio) { … } static const struct pinctrl_ops mtk_pctlops = …; static int mtk_pmx_get_funcs_cnt(struct pinctrl_dev *pctldev) { … } static const char *mtk_pmx_get_func_name(struct pinctrl_dev *pctldev, unsigned selector) { … } static int mtk_pmx_get_func_groups(struct pinctrl_dev *pctldev, unsigned function, const char * const **groups, unsigned * const num_groups) { … } static int mtk_pmx_set_mux(struct pinctrl_dev *pctldev, unsigned function, unsigned group) { … } static const struct pinmux_ops mtk_pmxops = …; static int mtk_pconf_group_get(struct pinctrl_dev *pctldev, unsigned group, unsigned long *config) { … } static int mtk_pconf_group_set(struct pinctrl_dev *pctldev, unsigned group, unsigned long *configs, unsigned num_configs) { … } static const struct pinconf_ops mtk_confops = …; static struct pinctrl_desc mtk_desc = …; static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio) { … } static int mtk_gpio_get(struct gpio_chip *chip, unsigned int gpio) { … } static void mtk_gpio_set(struct gpio_chip *chip, unsigned int gpio, int value) { … } static int mtk_gpio_direction_input(struct gpio_chip *chip, unsigned int gpio) { … } static int mtk_gpio_direction_output(struct gpio_chip *chip, unsigned int gpio, int value) { … } static int mtk_gpio_to_irq(struct gpio_chip *chip, unsigned int offset) { … } static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned int offset, unsigned long config) { … } static int mtk_build_gpiochip(struct mtk_pinctrl *hw) { … } static int mtk_pctrl_build_state(struct platform_device *pdev) { … } int mtk_paris_pinctrl_probe(struct platform_device *pdev) { … } EXPORT_SYMBOL_GPL(…); static int mtk_paris_pinctrl_suspend(struct device *device) { … } static int mtk_paris_pinctrl_resume(struct device *device) { … } EXPORT_GPL_DEV_SLEEP_PM_OPS(mtk_paris_pinctrl_pm_ops) = …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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