diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-rockchip.h')
| -rw-r--r-- | drivers/pinctrl/pinctrl-rockchip.h | 467 |
1 files changed, 467 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-rockchip.h b/drivers/pinctrl/pinctrl-rockchip.h new file mode 100644 index 0000000000..4759f33694 --- /dev/null +++ b/drivers/pinctrl/pinctrl-rockchip.h @@ -0,0 +1,467 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2020-2021 Rockchip Electronics Co. Ltd. + * + * Copyright (c) 2013 MundoReader S.L. + * Author: Heiko Stuebner <heiko@sntech.de> + * + * With some ideas taken from pinctrl-samsung: + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2012 Linaro Ltd + * https://www.linaro.org + * + * and pinctrl-at91: + * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> + */ + +#ifndef _PINCTRL_ROCKCHIP_H +#define _PINCTRL_ROCKCHIP_H + +#define RK_GPIO0_A0 0 +#define RK_GPIO0_A1 1 +#define RK_GPIO0_A2 2 +#define RK_GPIO0_A3 3 +#define RK_GPIO0_A4 4 +#define RK_GPIO0_A5 5 +#define RK_GPIO0_A6 6 +#define RK_GPIO0_A7 7 +#define RK_GPIO0_B0 8 +#define RK_GPIO0_B1 9 +#define RK_GPIO0_B2 10 +#define RK_GPIO0_B3 11 +#define RK_GPIO0_B4 12 +#define RK_GPIO0_B5 13 +#define RK_GPIO0_B6 14 +#define RK_GPIO0_B7 15 +#define RK_GPIO0_C0 16 +#define RK_GPIO0_C1 17 +#define RK_GPIO0_C2 18 +#define RK_GPIO0_C3 19 +#define RK_GPIO0_C4 20 +#define RK_GPIO0_C5 21 +#define RK_GPIO0_C6 22 +#define RK_GPIO0_C7 23 +#define RK_GPIO0_D0 24 +#define RK_GPIO0_D1 25 +#define RK_GPIO0_D2 26 +#define RK_GPIO0_D3 27 +#define RK_GPIO0_D4 28 +#define RK_GPIO0_D5 29 +#define RK_GPIO0_D6 30 +#define RK_GPIO0_D7 31 + +#define RK_GPIO1_A0 32 +#define RK_GPIO1_A1 33 +#define RK_GPIO1_A2 34 +#define RK_GPIO1_A3 35 +#define RK_GPIO1_A4 36 +#define RK_GPIO1_A5 37 +#define RK_GPIO1_A6 38 +#define RK_GPIO1_A7 39 +#define RK_GPIO1_B0 40 +#define RK_GPIO1_B1 41 +#define RK_GPIO1_B2 42 +#define RK_GPIO1_B3 43 +#define RK_GPIO1_B4 44 +#define RK_GPIO1_B5 45 +#define RK_GPIO1_B6 46 +#define RK_GPIO1_B7 47 +#define RK_GPIO1_C0 48 +#define RK_GPIO1_C1 49 +#define RK_GPIO1_C2 50 +#define RK_GPIO1_C3 51 +#define RK_GPIO1_C4 52 +#define RK_GPIO1_C5 53 +#define RK_GPIO1_C6 54 +#define RK_GPIO1_C7 55 +#define RK_GPIO1_D0 56 +#define RK_GPIO1_D1 57 +#define RK_GPIO1_D2 58 +#define RK_GPIO1_D3 59 +#define RK_GPIO1_D4 60 +#define RK_GPIO1_D5 61 +#define RK_GPIO1_D6 62 +#define RK_GPIO1_D7 63 + +#define RK_GPIO2_A0 64 +#define RK_GPIO2_A1 65 +#define RK_GPIO2_A2 66 +#define RK_GPIO2_A3 67 +#define RK_GPIO2_A4 68 +#define RK_GPIO2_A5 69 +#define RK_GPIO2_A6 70 +#define RK_GPIO2_A7 71 +#define RK_GPIO2_B0 72 +#define RK_GPIO2_B1 73 +#define RK_GPIO2_B2 74 +#define RK_GPIO2_B3 75 +#define RK_GPIO2_B4 76 +#define RK_GPIO2_B5 77 +#define RK_GPIO2_B6 78 +#define RK_GPIO2_B7 79 +#define RK_GPIO2_C0 80 +#define RK_GPIO2_C1 81 +#define RK_GPIO2_C2 82 +#define RK_GPIO2_C3 83 +#define RK_GPIO2_C4 84 +#define RK_GPIO2_C5 85 +#define RK_GPIO2_C6 86 +#define RK_GPIO2_C7 87 +#define RK_GPIO2_D0 88 +#define RK_GPIO2_D1 89 +#define RK_GPIO2_D2 90 +#define RK_GPIO2_D3 91 +#define RK_GPIO2_D4 92 +#define RK_GPIO2_D5 93 +#define RK_GPIO2_D6 94 +#define RK_GPIO2_D7 95 + +#define RK_GPIO3_A0 96 +#define RK_GPIO3_A1 97 +#define RK_GPIO3_A2 98 +#define RK_GPIO3_A3 99 +#define RK_GPIO3_A4 100 +#define RK_GPIO3_A5 101 +#define RK_GPIO3_A6 102 +#define RK_GPIO3_A7 103 +#define RK_GPIO3_B0 104 +#define RK_GPIO3_B1 105 +#define RK_GPIO3_B2 106 +#define RK_GPIO3_B3 107 +#define RK_GPIO3_B4 108 +#define RK_GPIO3_B5 109 +#define RK_GPIO3_B6 110 +#define RK_GPIO3_B7 111 +#define RK_GPIO3_C0 112 +#define RK_GPIO3_C1 113 +#define RK_GPIO3_C2 114 +#define RK_GPIO3_C3 115 +#define RK_GPIO3_C4 116 +#define RK_GPIO3_C5 117 +#define RK_GPIO3_C6 118 +#define RK_GPIO3_C7 119 +#define RK_GPIO3_D0 120 +#define RK_GPIO3_D1 121 +#define RK_GPIO3_D2 122 +#define RK_GPIO3_D3 123 +#define RK_GPIO3_D4 124 +#define RK_GPIO3_D5 125 +#define RK_GPIO3_D6 126 +#define RK_GPIO3_D7 127 + +#define RK_GPIO4_A0 128 +#define RK_GPIO4_A1 129 +#define RK_GPIO4_A2 130 +#define RK_GPIO4_A3 131 +#define RK_GPIO4_A4 132 +#define RK_GPIO4_A5 133 +#define RK_GPIO4_A6 134 +#define RK_GPIO4_A7 135 +#define RK_GPIO4_B0 136 +#define RK_GPIO4_B1 137 +#define RK_GPIO4_B2 138 +#define RK_GPIO4_B3 139 +#define RK_GPIO4_B4 140 +#define RK_GPIO4_B5 141 +#define RK_GPIO4_B6 142 +#define RK_GPIO4_B7 143 +#define RK_GPIO4_C0 144 +#define RK_GPIO4_C1 145 +#define RK_GPIO4_C2 146 +#define RK_GPIO4_C3 147 +#define RK_GPIO4_C4 148 +#define RK_GPIO4_C5 149 +#define RK_GPIO4_C6 150 +#define RK_GPIO4_C7 151 +#define RK_GPIO4_D0 152 +#define RK_GPIO4_D1 153 +#define RK_GPIO4_D2 154 +#define RK_GPIO4_D3 155 +#define RK_GPIO4_D4 156 +#define RK_GPIO4_D5 157 +#define RK_GPIO4_D6 158 +#define RK_GPIO4_D7 159 + +enum rockchip_pinctrl_type { + PX30, + RV1108, + RV1126, + RK2928, + RK3066B, + RK3128, + RK3188, + RK3288, + RK3308, + RK3368, + RK3399, + RK3568, + RK3588, +}; + +/** + * 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; + const struct 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; +}; + +enum rockchip_mux_route_location { + ROCKCHIP_ROUTE_SAME = 0, + ROCKCHIP_ROUTE_PMU, + ROCKCHIP_ROUTE_GRF, +}; + +/** + * 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_config { + unsigned int func; + unsigned long *configs; + unsigned int nconfigs; +}; + +enum pin_config_param; + +struct rockchip_pin_deferred { + struct list_head head; + unsigned int pin; + enum pin_config_param param; + u32 arg; +}; + +/** + * 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 { + const char *name; + unsigned int npins; + unsigned int *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 { + const char *name; + const char **groups; + u8 ngroups; +}; + +struct rockchip_pinctrl { + struct regmap *regmap_base; + int reg_size; + struct regmap *regmap_pull; + struct regmap *regmap_pmu; + struct device *dev; + struct rockchip_pin_ctrl *ctrl; + struct pinctrl_desc pctl; + struct pinctrl_dev *pctl_dev; + struct rockchip_pin_group *groups; + unsigned int ngroups; + struct rockchip_pmx_func *functions; + unsigned int nfunctions; +}; + +#endif |