// SPDX-License-Identifier: GPL-2.0-only /* * Spreadtrum pin controller driver * Copyright (C) 2017 Spreadtrum - http://www.spreadtrum.com */ #include <linux/debugfs.h> #include <linux/err.h> #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/pinctrl/consumer.h> #include <linux/pinctrl/machine.h> #include <linux/pinctrl/pinconf-generic.h> #include <linux/pinctrl/pinconf.h> #include <linux/pinctrl/pinctrl.h> #include <linux/pinctrl/pinmux.h> #include "../core.h" #include "../pinmux.h" #include "../pinconf.h" #include "../pinctrl-utils.h" #include "pinctrl-sprd.h" #define PINCTRL_BIT_MASK(width) … #define PINCTRL_REG_OFFSET … #define PINCTRL_REG_MISC_OFFSET … #define PINCTRL_REG_LEN … #define PIN_FUNC_MASK … #define PIN_FUNC_SEL_1 … #define PIN_FUNC_SEL_2 … #define PIN_FUNC_SEL_3 … #define PIN_FUNC_SEL_4 … #define AP_SLEEP_MODE … #define PUBCP_SLEEP_MODE … #define TGLDSP_SLEEP_MODE … #define AGDSP_SLEEP_MODE … #define CM4_SLEEP_MODE … #define SLEEP_MODE_MASK … #define SLEEP_MODE_SHIFT … #define SLEEP_INPUT … #define SLEEP_INPUT_MASK … #define SLEEP_INPUT_SHIFT … #define SLEEP_OUTPUT … #define SLEEP_OUTPUT_MASK … #define SLEEP_OUTPUT_SHIFT … #define DRIVE_STRENGTH_MASK … #define DRIVE_STRENGTH_SHIFT … #define SLEEP_PULL_DOWN … #define SLEEP_PULL_DOWN_MASK … #define SLEEP_PULL_DOWN_SHIFT … #define PULL_DOWN … #define PULL_DOWN_MASK … #define PULL_DOWN_SHIFT … #define SLEEP_PULL_UP … #define SLEEP_PULL_UP_MASK … #define SLEEP_PULL_UP_SHIFT … #define PULL_UP_4_7K … #define PULL_UP_20K … #define PULL_UP_MASK … #define PULL_UP_SHIFT … #define INPUT_SCHMITT … #define INPUT_SCHMITT_MASK … #define INPUT_SCHMITT_SHIFT … enum pin_sleep_mode { … }; enum pin_func_sel { … }; /** * struct sprd_pin: represent one pin's description * @name: pin name * @number: pin number * @type: pin type, can be GLOBAL_CTRL_PIN/COMMON_PIN/MISC_PIN * @reg: pin register address * @bit_offset: bit offset in pin register * @bit_width: bit width in pin register */ struct sprd_pin { … }; /** * struct sprd_pin_group: represent one group's description * @name: group name * @npins: pin numbers of this group * @pins: pointer to pins array */ struct sprd_pin_group { … }; /** * struct sprd_pinctrl_soc_info: represent the SoC's pins description * @groups: pointer to groups of pins * @ngroups: group numbers of the whole SoC * @pins: pointer to pins description * @npins: pin numbers of the whole SoC * @grp_names: pointer to group names array */ struct sprd_pinctrl_soc_info { … }; /** * struct sprd_pinctrl: represent the pin controller device * @dev: pointer to the device structure * @pctl: pointer to the pinctrl handle * @base: base address of the controller * @info: pointer to SoC's pins description information */ struct sprd_pinctrl { … }; #define SPRD_PIN_CONFIG_CONTROL … #define SPRD_PIN_CONFIG_SLEEP_MODE … static int sprd_pinctrl_get_id_by_name(struct sprd_pinctrl *sprd_pctl, const char *name) { … } static struct sprd_pin * sprd_pinctrl_get_pin_by_id(struct sprd_pinctrl *sprd_pctl, unsigned int id) { … } static const struct sprd_pin_group * sprd_pinctrl_find_group_by_name(struct sprd_pinctrl *sprd_pctl, const char *name) { … } static int sprd_pctrl_group_count(struct pinctrl_dev *pctldev) { … } static const char *sprd_pctrl_group_name(struct pinctrl_dev *pctldev, unsigned int selector) { … } static int sprd_pctrl_group_pins(struct pinctrl_dev *pctldev, unsigned int selector, const unsigned int **pins, unsigned int *npins) { … } static int sprd_dt_node_to_map(struct pinctrl_dev *pctldev, struct device_node *np, struct pinctrl_map **map, unsigned int *num_maps) { … } static void sprd_pctrl_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned int offset) { … } static const struct pinctrl_ops sprd_pctrl_ops = …; static int sprd_pmx_get_function_count(struct pinctrl_dev *pctldev) { … } static const char *sprd_pmx_get_function_name(struct pinctrl_dev *pctldev, unsigned int selector) { … } static int sprd_pmx_get_function_groups(struct pinctrl_dev *pctldev, unsigned int selector, const char * const **groups, unsigned int * const num_groups) { … } static int sprd_pmx_set_mux(struct pinctrl_dev *pctldev, unsigned int func_selector, unsigned int group_selector) { … } static const struct pinmux_ops sprd_pmx_ops = …; static int sprd_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin_id, unsigned long *config) { … } static unsigned int sprd_pinconf_drive(unsigned int mA) { … } static bool sprd_pinctrl_check_sleep_config(unsigned long *configs, unsigned int num_configs) { … } static int sprd_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin_id, unsigned long *configs, unsigned int num_configs) { … } static int sprd_pinconf_group_get(struct pinctrl_dev *pctldev, unsigned int selector, unsigned long *config) { … } static int sprd_pinconf_group_set(struct pinctrl_dev *pctldev, unsigned int selector, unsigned long *configs, unsigned int num_configs) { … } static int sprd_pinconf_get_config(struct pinctrl_dev *pctldev, unsigned int pin_id, unsigned long *config) { … } static void sprd_pinconf_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned int pin_id) { … } static void sprd_pinconf_group_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned int selector) { … } static const struct pinconf_ops sprd_pinconf_ops = …; static const struct pinconf_generic_params sprd_dt_params[] = …; #ifdef CONFIG_DEBUG_FS static const struct pin_config_item sprd_conf_items[] = …; #endif static struct pinctrl_desc sprd_pinctrl_desc = …; static int sprd_pinctrl_parse_groups(struct device_node *np, struct sprd_pinctrl *sprd_pctl, struct sprd_pin_group *grp) { … } static unsigned int sprd_pinctrl_get_groups(struct device_node *np) { … } static int sprd_pinctrl_parse_dt(struct sprd_pinctrl *sprd_pctl) { … } static int sprd_pinctrl_add_pins(struct sprd_pinctrl *sprd_pctl, struct sprd_pins_info *sprd_soc_pin_info, int pins_cnt) { … } int sprd_pinctrl_core_probe(struct platform_device *pdev, struct sprd_pins_info *sprd_soc_pin_info, int pins_cnt) { … } EXPORT_SYMBOL_GPL(…); void sprd_pinctrl_remove(struct platform_device *pdev) { … } EXPORT_SYMBOL_GPL(…); void sprd_pinctrl_shutdown(struct platform_device *pdev) { … } EXPORT_SYMBOL_GPL(…); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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