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pinctrl-abx500.h


products/Sources/formale Sprachen/C/Linux/drivers/pinctrl/nomadik/pinctrl-abx500.h

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef PINCTRL_PINCTRL_ABx500_H #define PINCTRL_PINCTRL_ABx500_H #include struct pinctrl_pin_desc; /* Package definitions */ #define PINCTRL_AB8500 0 #define PINCTRL_AB8505 1 /* pins alternate function */ enum abx500_pin_func { ABX500_DEFAULT, ABX500_ALT_A, ABX500_ALT_B, ABX500_ALT_C, }; enum abx500_gpio_pull_updown { ABX500_GPIO_PULL_DOWN = 0x0, ABX500_GPIO_PULL_NONE = 0x1, ABX500_GPIO_PULL_UP = 0x3, }; enum abx500_gpio_vinsel { ABX500_GPIO_VINSEL_VBAT = 0x0, ABX500_GPIO_VINSEL_VIN_1V8 = 0x1, ABX500_GPIO_VINSEL_VDD_BIF = 0x2, }; /** * struct abx500_function - ABx500 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 abx500_function { const char *name; const char * const *groups; unsigned ngroups; }; /** * struct abx500_pingroup - describes a ABx500 pin group * @name: the name of this specific pin group * @pins: an array of discrete physical pins used in this group, taken * from the driver-local pin enumeration space * @num_pins: the number of pins in this group array, i.e. the number of * elements in .pins so we can iterate over that array * @altsetting: the altsetting to apply to all pins in this group to * configure them to be used by a function */ struct abx500_pingroup { const char *name; const unsigned int *pins; const unsigned npins; int altsetting; }; #define ALTERNATE_FUNCTIONS(pin, sel_bit, alt1, alt2, alta, altb, altc) \ { \ .pin_number = pin, \ .gpiosel_bit = sel_bit, \ .alt_bit1 = alt1, \ .alt_bit2 = alt2, \ .alta_val = alta, \ .altb_val = altb, \ .altc_val = altc, \ } #define UNUSED -1 /** * struct alternate_functions * @pin_number: The pin number * @gpiosel_bit: Control bit in GPIOSEL register, * @alt_bit1: First AlternateFunction bit used to select the * alternate function * @alt_bit2: Second AlternateFunction bit used to select the * alternate function * * these 3 following fields are necessary due to none * coherency on how to select the altA, altB and altC * function between the ABx500 SOC family when using * alternatfunc register. * @alta_val: value to write in alternatfunc to select altA function * @altb_val: value to write in alternatfunc to select altB function * @altc_val: value to write in alternatfunc to select altC function */ struct alternate_functions { unsigned pin_number; s8 gpiosel_bit; s8 alt_bit1; s8 alt_bit2; u8 alta_val; u8 altb_val; u8 altc_val; }; #define GPIO_IRQ_CLUSTER(a, b, c) \ { \ .start = a, \ .end = b, \ .to_irq = c, \ } /** * struct abx500_gpio_irq_cluster - indicates GPIOs which are interrupt * capable * @start: The pin number of the first pin interrupt capable * @end: The pin number of the last pin interrupt capable * @to_irq: The ABx500 GPIO's associated IRQs are clustered * together throughout the interrupt numbers at irregular * intervals. To solve this quandary, we will place the * read-in values into the cluster information table */ struct abx500_gpio_irq_cluster { int start; int end; int to_irq; }; /** * struct abx500_pinrange - map pin numbers to GPIO offsets * @offset: offset into the GPIO local numberspace, incidentally * identical to the offset into the local pin numberspace * @npins: number of pins to map from both offsets * @altfunc: altfunc setting to be used to enable GPIO on a pin in * this range (may vary) */ struct abx500_pinrange { unsigned int offset; unsigned int npins; int altfunc; }; #define ABX500_PINRANGE(a, b, c) { .offset = a, .npins = b, .altfunc = c } /** * struct abx500_pinctrl_soc_data - ABx500 pin controller per-SoC configuration * @gpio_ranges: An array of GPIO ranges for this SoC * @gpio_num_ranges: The number of GPIO ranges for this SoC * @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. * @alternate_functions: array describing pins which supports alternate and * how to set it. * @gpio_irq_cluster: An array of GPIO interrupt capable for this SoC * @ngpio_irq_cluster: The number of GPIO inetrrupt capable for this SoC * @irq_gpio_rising_offset: Interrupt offset used as base to compute specific * setting strategy of the rising interrupt line * @irq_gpio_falling_offset: Interrupt offset used as base to compute specific * setting strategy of the falling interrupt line * @irq_gpio_factor: Factor used to compute specific setting strategy of * the interrupt line */ struct abx500_pinctrl_soc_data { const struct abx500_pinrange *gpio_ranges; unsigned gpio_num_ranges; const struct pinctrl_pin_desc *pins; unsigned npins; const struct abx500_function *functions; unsigned nfunctions; const struct abx500_pingroup *groups; unsigned ngroups; struct alternate_functions *alternate_functions; struct abx500_gpio_irq_cluster *gpio_irq_cluster; unsigned ngpio_irq_cluster; int irq_gpio_rising_offset; int irq_gpio_falling_offset; int irq_gpio_factor; }; #ifdef CONFIG_PINCTRL_AB8500 void abx500_pinctrl_ab8500_init(struct abx500_pinctrl_soc_data **soc); #else static inline void abx500_pinctrl_ab8500_init(struct abx500_pinctrl_soc_data **soc) { } #endif #ifdef CONFIG_PINCTRL_AB8505 void abx500_pinctrl_ab8505_init(struct abx500_pinctrl_soc_data **soc); #else static inline void abx500_pinctrl_ab8505_init(struct abx500_pinctrl_soc_data **soc) { } #endif #endif /* PINCTRL_PINCTRL_ABx500_H */

                                                                                                                                                                                                                                                                                                                                                                                                     

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