/** * struct rockchip_gpio_regs * @port_dr: data register * @port_ddr: data direction register * @int_en: interrupt enable * @int_mask: interrupt mask * @int_type: interrupt trigger type, such as high, low, edge trriger type. * @int_polarity: interrupt polarity enable register * @int_bothedge: interrupt bothedge enable register * @int_status: interrupt status register * @int_rawstatus: int_status = int_rawstatus & int_mask * @debounce: enable debounce for interrupt signal * @dbclk_div_en: enable divider for debounce clock * @dbclk_div_con: setting for divider of debounce clock * @port_eoi: end of interrupt of the port * @ext_port: port data from external * @version_id: controller version register
*/ struct rockchip_gpio_regs {
u32 port_dr;
u32 port_ddr;
u32 int_en;
u32 int_mask;
u32 int_type;
u32 int_polarity;
u32 int_bothedge;
u32 int_status;
u32 int_rawstatus;
u32 debounce;
u32 dbclk_div_en;
u32 dbclk_div_con;
u32 port_eoi;
u32 ext_port;
u32 version_id;
};
/** * struct rockchip_iomux * @type: iomux variant using IOMUX_* constants * @offset: if initialized to -1 it will be autocalculated, by specifying * an initial offset value the relevant source offset can be reset * to a new value for autocalculating the following iomux registers.
*/ struct rockchip_iomux { int type; int offset;
};
/* * enum type index corresponding to rockchip_perpin_drv_list arrays index.
*/ enum rockchip_pin_drv_type {
DRV_TYPE_IO_DEFAULT = 0,
DRV_TYPE_IO_1V8_OR_3V0,
DRV_TYPE_IO_1V8_ONLY,
DRV_TYPE_IO_1V8_3V0_AUTO,
DRV_TYPE_IO_3V3_ONLY,
DRV_TYPE_MAX
};
/* * enum type index corresponding to rockchip_pull_list arrays index.
*/ enum rockchip_pin_pull_type {
PULL_TYPE_IO_DEFAULT = 0,
PULL_TYPE_IO_1V8_ONLY,
PULL_TYPE_MAX
};
/** * struct rockchip_drv * @drv_type: drive strength variant using rockchip_perpin_drv_type * @offset: if initialized to -1 it will be autocalculated, by specifying * an initial offset value the relevant source offset can be reset * to a new value for autocalculating the following drive strength * registers. if used chips own cal_drv func instead to calculate * registers offset, the variant could be ignored.
*/ struct rockchip_drv { enum rockchip_pin_drv_type drv_type; int offset;
};
/** * struct rockchip_pin_bank * @dev: the pinctrl device bind to the bank * @reg_base: register base of the gpio bank * @regmap_pull: optional separate register for additional pull settings * @clk: clock of the gpio bank * @db_clk: clock of the gpio debounce * @irq: interrupt of the gpio bank * @saved_masks: Saved content of GPIO_INTEN at suspend time. * @pin_base: first pin number * @nr_pins: number of pins in this bank * @name: name of the bank * @bank_num: number of the bank, to account for holes * @iomux: array describing the 4 iomux sources of the bank * @drv: array describing the 4 drive strength sources of the bank * @pull_type: array describing the 4 pull type sources of the bank * @valid: is all necessary information present * @of_node: dt node of this bank * @drvdata: common pinctrl basedata * @domain: irqdomain of the gpio bank * @gpio_chip: gpiolib chip * @grange: gpio range * @slock: spinlock for the gpio bank * @toggle_edge_mode: bit mask to toggle (falling/rising) edge mode * @recalced_mask: bit mask to indicate a need to recalulate the mask * @route_mask: bits describing the routing pins of per bank * @deferred_output: gpio output settings to be done after gpio bank probed * @deferred_lock: mutex for the deferred_output shared btw gpio and pinctrl
*/ struct rockchip_pin_bank { struct device *dev; void __iomem *reg_base; struct regmap *regmap_pull; struct clk *clk; struct clk *db_clk; int irq;
u32 saved_masks;
u32 pin_base;
u8 nr_pins; char *name;
u8 bank_num; struct rockchip_iomux iomux[4]; struct rockchip_drv drv[4]; enum rockchip_pin_pull_type pull_type[4]; bool valid; struct device_node *of_node; struct rockchip_pinctrl *drvdata; struct irq_domain *domain; struct gpio_chip gpio_chip; struct pinctrl_gpio_range grange;
raw_spinlock_t slock; conststruct rockchip_gpio_regs *gpio_regs;
u32 gpio_type;
u32 toggle_edge_mode;
u32 recalced_mask;
u32 route_mask; struct list_head deferred_pins; struct mutex deferred_lock;
};
/** * struct rockchip_mux_recalced_data: represent a pin iomux data. * @num: bank number. * @pin: pin number. * @bit: index at register. * @reg: register offset. * @mask: mask bit
*/ struct rockchip_mux_recalced_data {
u8 num;
u8 pin;
u32 reg;
u8 bit;
u8 mask;
};
/** * struct rockchip_mux_recalced_data: represent a pin iomux data. * @bank_num: bank number. * @pin: index at register or used to calc index. * @func: the min pin. * @route_location: the mux route location (same, pmu, grf). * @route_offset: the max pin. * @route_val: the register offset.
*/ struct rockchip_mux_route_data {
u8 bank_num;
u8 pin;
u8 func; enum rockchip_mux_route_location route_location;
u32 route_offset;
u32 route_val;
};
struct rockchip_pin_ctrl { struct rockchip_pin_bank *pin_banks;
u32 nr_banks;
u32 nr_pins; char *label; enum rockchip_pinctrl_type type; int grf_mux_offset; int pmu_mux_offset; int grf_drv_offset; int pmu_drv_offset; struct rockchip_mux_recalced_data *iomux_recalced;
u32 niomux_recalced; struct rockchip_mux_route_data *iomux_routes;
u32 niomux_routes;
int (*pull_calc_reg)(struct rockchip_pin_bank *bank, int pin_num, struct regmap **regmap, int *reg, u8 *bit); int (*drv_calc_reg)(struct rockchip_pin_bank *bank, int pin_num, struct regmap **regmap, int *reg, u8 *bit); int (*schmitt_calc_reg)(struct rockchip_pin_bank *bank, int pin_num, struct regmap **regmap, int *reg, u8 *bit);
};
/** * struct rockchip_pin_group: represent group of pins of a pinmux function. * @name: name of the pin group, used to lookup the group. * @pins: the pins included in this group. * @npins: number of pins included in this group. * @data: local pin configuration
*/ struct rockchip_pin_group { constchar *name; unsignedint npins; unsignedint *pins; struct rockchip_pin_config *data;
};
/** * struct rockchip_pmx_func: represent a pin function. * @name: name of the pin function, used to lookup the function. * @groups: one or more names of pin groups that provide this function. * @ngroups: number of groups included in @groups.
*/ struct rockchip_pmx_func { constchar *name; constchar **groups;
u8 ngroups;
};
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