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-rw-r--r--drivers/pinctrl/pinctrl-rockchip.h467
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 000000000..4759f3369
--- /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