/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __LINUX_GPIO_NOMADIK_H #define __LINUX_GPIO_NOMADIK_H struct fwnode_handle; /* Package definitions */ #define PINCTRL_NMK_STN8815 … #define PINCTRL_NMK_DB8500 … #define GPIO_BLOCK_SHIFT … #define NMK_GPIO_PER_CHIP … #define NMK_MAX_BANKS … /* Register in the logic block */ #define NMK_GPIO_DAT … #define NMK_GPIO_DATS … #define NMK_GPIO_DATC … #define NMK_GPIO_PDIS … #define NMK_GPIO_DIR … #define NMK_GPIO_DIRS … #define NMK_GPIO_DIRC … #define NMK_GPIO_SLPC … #define NMK_GPIO_AFSLA … #define NMK_GPIO_AFSLB … #define NMK_GPIO_LOWEMI … #define NMK_GPIO_RIMSC … #define NMK_GPIO_FIMSC … #define NMK_GPIO_IS … #define NMK_GPIO_IC … #define NMK_GPIO_RWIMSC … #define NMK_GPIO_FWIMSC … #define NMK_GPIO_WKS … /* These appear in DB8540 and later ASICs */ #define NMK_GPIO_EDGELEVEL … #define NMK_GPIO_LEVEL … /* Pull up/down values */ enum nmk_gpio_pull { … }; /* Sleep mode */ enum nmk_gpio_slpm { … }; struct nmk_gpio_chip { … }; /* Alternate functions: function C is set in hw by setting both A and B */ #define NMK_GPIO_ALT_GPIO … #define NMK_GPIO_ALT_A … #define NMK_GPIO_ALT_B … #define NMK_GPIO_ALT_C … #define NMK_GPIO_ALT_CX_SHIFT … #define NMK_GPIO_ALT_C1 … #define NMK_GPIO_ALT_C2 … #define NMK_GPIO_ALT_C3 … #define NMK_GPIO_ALT_C4 … #define PRCM_GPIOCR_ALTCX(pin_num,\ altc1_used, altc1_ri, altc1_cb,\ altc2_used, altc2_ri, altc2_cb,\ altc3_used, altc3_ri, altc3_cb,\ altc4_used, altc4_ri, altc4_cb) … /** * enum prcm_gpiocr_reg_index * Used to reference an PRCM GPIOCR register address. */ enum prcm_gpiocr_reg_index { … }; /** * enum prcm_gpiocr_altcx_index * Used to reference an Other alternate-C function. */ enum prcm_gpiocr_altcx_index { … }; /** * struct prcm_gpio_altcx - Other alternate-C function * @used: other alternate-C function availability * @reg_index: PRCM GPIOCR register index used to control the function * @control_bit: PRCM GPIOCR bit used to control the function */ struct prcm_gpiocr_altcx { … } __packed; /** * struct prcm_gpio_altcx_pin_desc - Other alternate-C pin * @pin: The pin number * @altcx: array of other alternate-C[1-4] functions */ struct prcm_gpiocr_altcx_pin_desc { … }; /** * struct nmk_function - Nomadik pinctrl mux function * @name: The name of the function, exported to pinctrl core. * @groups: An array of pin groups that may select this function. * @ngroups: The number of entries in @groups. */ struct nmk_function { … }; /** * struct nmk_pingroup - describes a Nomadik pin group * @grp: Generic data of the pin group (name and pins) * @altsetting: the altsetting to apply to all pins in this group to * configure them to be used by a function */ struct nmk_pingroup { … }; #define NMK_PIN_GROUP(a, b) … /** * struct nmk_pinctrl_soc_data - Nomadik pin controller per-SoC configuration * @pins: An array describing all pins the pin controller affects. * All pins which are also GPIOs must be listed first within the * array, and be numbered identically to the GPIO controller's * numbering. * @npins: The number of entries in @pins. * @functions: The functions supported on this SoC. * @nfunction: The number of entries in @functions. * @groups: An array describing all pin groups the pin SoC supports. * @ngroups: The number of entries in @groups. * @altcx_pins: The pins that support Other alternate-C function on this SoC * @npins_altcx: The number of Other alternate-C pins * @prcm_gpiocr_registers: The array of PRCM GPIOCR registers on this SoC */ struct nmk_pinctrl_soc_data { … }; #ifdef CONFIG_PINCTRL_STN8815 void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc); #else static inline void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc) { … } #endif #ifdef CONFIG_PINCTRL_DB8500 void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc); #else static inline void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc) { … } #endif #ifdef CONFIG_PINCTRL_DB8540 void nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc); #else static inline void nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc) { … } #endif struct platform_device; #ifdef CONFIG_DEBUG_FS /* * Symbols declared in gpio-nomadik used by pinctrl-nomadik. If pinctrl-nomadik * is enabled, then gpio-nomadik is enabled as well; the reverse if not always * true. */ void nmk_gpio_dbg_show_one(struct seq_file *s, struct pinctrl_dev *pctldev, struct gpio_chip *chip, unsigned int offset, unsigned int gpio); #else static inline void nmk_gpio_dbg_show_one(struct seq_file *s, struct pinctrl_dev *pctldev, struct gpio_chip *chip, unsigned int offset, unsigned int gpio) { } #endif void __nmk_gpio_make_output(struct nmk_gpio_chip *nmk_chip, unsigned int offset, int val); void __nmk_gpio_set_slpm(struct nmk_gpio_chip *nmk_chip, unsigned int offset, enum nmk_gpio_slpm mode); struct nmk_gpio_chip *nmk_gpio_populate_chip(struct fwnode_handle *fwnode, struct platform_device *pdev); /* Symbols declared in pinctrl-nomadik used by gpio-nomadik. */ #ifdef CONFIG_PINCTRL_NOMADIK extern struct nmk_gpio_chip *nmk_gpio_chips[NMK_MAX_BANKS]; extern spinlock_t nmk_gpio_slpm_lock; int __maybe_unused nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev, int gpio); #endif #endif /* __LINUX_GPIO_NOMADIK_H */
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