2 * Pinctrl driver for Rockchip SoCs
4 * Copyright (c) 2013 MundoReader S.L.
5 * Author: Heiko Stuebner <heiko@sntech.de>
7 * With some ideas taken from pinctrl-samsung:
8 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
9 * http://www.samsung.com
10 * Copyright (c) 2012 Linaro Ltd
11 * http://www.linaro.org
14 * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License version 2 as published
18 * by the Free Software Foundation.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
26 #include <linux/module.h>
27 #include <linux/platform_device.h>
29 #include <linux/bitops.h>
30 #include <linux/gpio.h>
31 #include <linux/of_address.h>
32 #include <linux/of_irq.h>
33 #include <linux/pinctrl/machine.h>
34 #include <linux/pinctrl/pinconf.h>
35 #include <linux/pinctrl/pinctrl.h>
36 #include <linux/pinctrl/pinmux.h>
37 #include <linux/pinctrl/pinconf-generic.h>
38 #include <linux/irqchip/chained_irq.h>
39 #include <linux/clk.h>
40 #include <linux/regmap.h>
41 #include <linux/mfd/syscon.h>
42 #include <dt-bindings/pinctrl/rockchip.h>
47 /* GPIO control registers */
48 #define GPIO_SWPORT_DR 0x00
49 #define GPIO_SWPORT_DDR 0x04
50 #define GPIO_INTEN 0x30
51 #define GPIO_INTMASK 0x34
52 #define GPIO_INTTYPE_LEVEL 0x38
53 #define GPIO_INT_POLARITY 0x3c
54 #define GPIO_INT_STATUS 0x40
55 #define GPIO_INT_RAWSTATUS 0x44
56 #define GPIO_DEBOUNCE 0x48
57 #define GPIO_PORTS_EOI 0x4c
58 #define GPIO_EXT_PORT 0x50
59 #define GPIO_LS_SYNC 0x60
61 enum rockchip_pinctrl_type {
72 * Encode variants of iomux registers into a type variable
74 #define IOMUX_GPIO_ONLY BIT(0)
75 #define IOMUX_WIDTH_4BIT BIT(1)
76 #define IOMUX_SOURCE_PMU BIT(2)
77 #define IOMUX_UNROUTED BIT(3)
80 * @type: iomux variant using IOMUX_* constants
81 * @offset: if initialized to -1 it will be autocalculated, by specifying
82 * an initial offset value the relevant source offset can be reset
83 * to a new value for autocalculating the following iomux registers.
85 struct rockchip_iomux {
91 * enum type index corresponding to rockchip_perpin_drv_list arrays index.
93 enum rockchip_pin_drv_type {
94 DRV_TYPE_IO_DEFAULT = 0,
95 DRV_TYPE_IO_1V8_OR_3V0,
97 DRV_TYPE_IO_1V8_3V0_AUTO,
99 DRV_TYPE_IO_WIDE_LEVEL,
100 DRV_TYPE_IO_NARROW_LEVEL,
105 * enum type index corresponding to rockchip_pull_list arrays index.
107 enum rockchip_pin_pull_type {
108 PULL_TYPE_IO_DEFAULT = 0,
109 PULL_TYPE_IO_1V8_ONLY,
114 * enum type of pin extra drive alignment.
116 enum rockchip_pin_extra_drv_type {
117 DRV_TYPE_EXTRA_DEFAULT = 0,
118 DRV_TYPE_EXTRA_SAME_OFFSET,
119 DRV_TYPE_EXTRA_SAME_BITS
123 * @drv_type: drive strength variant using rockchip_pin_drv_type
124 * @offset: if initialized to -1 it will be autocalculated, by specifying
125 * an initial offset value the relevant source offset can be reset
126 * to a new value for autocalculating the following drive strength
127 * registers. if used chips own cal_drv func instead to calculate
128 * registers offset, the variant could be ignored.
130 struct rockchip_drv {
131 enum rockchip_pin_drv_type drv_type;
136 * @reg_base: register base of the gpio bank
137 * @reg_pull: optional separate register for additional pull settings
138 * @clk: clock of the gpio bank
139 * @irq: interrupt of the gpio bank
140 * @saved_masks: Saved content of GPIO_INTEN at suspend time.
141 * @pin_base: first pin number
142 * @nr_pins: number of pins in this bank
143 * @name: name of the bank
144 * @bank_num: number of the bank, to account for holes
145 * @iomux: array describing the 4 iomux sources of the bank
146 * @drv: array describing the 4 drive strength sources of the bank
147 * @pull_type: array describing the 4 pull type sources of the bank
148 * @valid: are all necessary informations present
149 * @of_node: dt node of this bank
150 * @drvdata: common pinctrl basedata
151 * @domain: irqdomain of the gpio bank
152 * @gpio_chip: gpiolib chip
153 * @grange: gpio range
154 * @slock: spinlock for the gpio bank
156 struct rockchip_pin_bank {
157 void __iomem *reg_base;
158 struct regmap *regmap_pull;
166 struct rockchip_iomux iomux[4];
167 struct rockchip_drv drv[4];
168 enum rockchip_pin_pull_type pull_type[4];
170 struct device_node *of_node;
171 struct rockchip_pinctrl *drvdata;
172 struct irq_domain *domain;
173 struct gpio_chip gpio_chip;
174 struct pinctrl_gpio_range grange;
176 u32 toggle_edge_mode;
179 #define PIN_BANK(id, pins, label) \
192 #define PIN_BANK_IOMUX_FLAGS(id, pins, label, iom0, iom1, iom2, iom3) \
198 { .type = iom0, .offset = -1 }, \
199 { .type = iom1, .offset = -1 }, \
200 { .type = iom2, .offset = -1 }, \
201 { .type = iom3, .offset = -1 }, \
205 #define PIN_BANK_DRV_FLAGS(id, pins, label, type0, type1, type2, type3) \
217 { .drv_type = type0, .offset = -1 }, \
218 { .drv_type = type1, .offset = -1 }, \
219 { .drv_type = type2, .offset = -1 }, \
220 { .drv_type = type3, .offset = -1 }, \
224 #define PIN_BANK_DRV_FLAGS_PULL_FLAGS(id, pins, label, drv0, drv1, drv2,\
225 drv3, pull0, pull1, pull2, pull3) \
237 { .drv_type = drv0, .offset = -1 }, \
238 { .drv_type = drv1, .offset = -1 }, \
239 { .drv_type = drv2, .offset = -1 }, \
240 { .drv_type = drv3, .offset = -1 }, \
242 .pull_type[0] = pull0, \
243 .pull_type[1] = pull1, \
244 .pull_type[2] = pull2, \
245 .pull_type[3] = pull3, \
248 #define PIN_BANK_IOMUX_DRV_FLAGS(id, pins, label, iom0, iom1, iom2, \
249 iom3, drv0, drv1, drv2, drv3) \
255 { .type = iom0, .offset = -1 }, \
256 { .type = iom1, .offset = -1 }, \
257 { .type = iom2, .offset = -1 }, \
258 { .type = iom3, .offset = -1 }, \
261 { .drv_type = drv0, .offset = -1 }, \
262 { .drv_type = drv1, .offset = -1 }, \
263 { .drv_type = drv2, .offset = -1 }, \
264 { .drv_type = drv3, .offset = -1 }, \
268 #define PIN_BANK_IOMUX_FLAGS_OFFSET_DRV_FLAGS(id, pins, label, iom0, \
269 iom1, iom2, iom3, offset0, \
270 offset1, offset2, offset3, \
271 drv0, drv1, drv2, drv3) \
277 { .type = iom0, .offset = offset0 }, \
278 { .type = iom1, .offset = offset1 }, \
279 { .type = iom2, .offset = offset2 }, \
280 { .type = iom3, .offset = offset3 }, \
283 { .drv_type = drv0, .offset = -1 }, \
284 { .drv_type = drv1, .offset = -1 }, \
285 { .drv_type = drv2, .offset = -1 }, \
286 { .drv_type = drv3, .offset = -1 }, \
290 #define PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET(id, pins, label, iom0, \
291 iom1, iom2, iom3, drv0, \
292 drv1, drv2, drv3, offset0,\
293 offset1, offset2, offset3)\
299 { .type = iom0, .offset = -1 }, \
300 { .type = iom1, .offset = -1 }, \
301 { .type = iom2, .offset = -1 }, \
302 { .type = iom3, .offset = -1 }, \
305 { .drv_type = drv0, .offset = offset0 }, \
306 { .drv_type = drv1, .offset = offset1 }, \
307 { .drv_type = drv2, .offset = offset2 }, \
308 { .drv_type = drv3, .offset = offset3 }, \
312 #define PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(id, pins, \
313 label, iom0, iom1, iom2, \
314 iom3, drv0, drv1, drv2, \
315 drv3, offset0, offset1, \
316 offset2, offset3, pull0, \
317 pull1, pull2, pull3) \
323 { .type = iom0, .offset = -1 }, \
324 { .type = iom1, .offset = -1 }, \
325 { .type = iom2, .offset = -1 }, \
326 { .type = iom3, .offset = -1 }, \
329 { .drv_type = drv0, .offset = offset0 }, \
330 { .drv_type = drv1, .offset = offset1 }, \
331 { .drv_type = drv2, .offset = offset2 }, \
332 { .drv_type = drv3, .offset = offset3 }, \
334 .pull_type[0] = pull0, \
335 .pull_type[1] = pull1, \
336 .pull_type[2] = pull2, \
337 .pull_type[3] = pull3, \
342 struct rockchip_pin_ctrl {
343 struct rockchip_pin_bank *pin_banks;
347 enum rockchip_pinctrl_type type;
353 void (*pull_calc_reg)(struct rockchip_pin_bank *bank,
354 int pin_num, struct regmap **regmap,
356 enum rockchip_pin_drv_type (*drv_calc_reg)(
357 struct rockchip_pin_bank *bank,
358 int pin_num, struct regmap **regmap,
360 enum rockchip_pin_extra_drv_type (*drv_calc_extra_reg)(
361 struct rockchip_pin_bank *bank,
362 int pin_num, struct regmap **regmap,
366 struct rockchip_pin_config {
368 unsigned long *configs;
369 unsigned int nconfigs;
373 * struct rockchip_pin_group: represent group of pins of a pinmux function.
374 * @name: name of the pin group, used to lookup the group.
375 * @pins: the pins included in this group.
376 * @npins: number of pins included in this group.
377 * @func: the mux function number to be programmed when selected.
378 * @configs: the config values to be set for each pin
379 * @nconfigs: number of configs for each pin
381 struct rockchip_pin_group {
385 struct rockchip_pin_config *data;
389 * struct rockchip_pmx_func: represent a pin function.
390 * @name: name of the pin function, used to lookup the function.
391 * @groups: one or more names of pin groups that provide this function.
392 * @num_groups: number of groups included in @groups.
394 struct rockchip_pmx_func {
400 struct rockchip_pinctrl {
401 struct regmap *regmap_base;
403 struct regmap *regmap_pull;
404 struct regmap *regmap_pmu;
406 struct rockchip_pin_ctrl *ctrl;
407 struct pinctrl_desc pctl;
408 struct pinctrl_dev *pctl_dev;
409 struct rockchip_pin_group *groups;
410 unsigned int ngroups;
411 struct rockchip_pmx_func *functions;
412 unsigned int nfunctions;
415 static struct regmap_config rockchip_regmap_config = {
421 static inline struct rockchip_pin_bank *gc_to_pin_bank(struct gpio_chip *gc)
423 return container_of(gc, struct rockchip_pin_bank, gpio_chip);
426 static const inline struct rockchip_pin_group *pinctrl_name_to_group(
427 const struct rockchip_pinctrl *info,
432 for (i = 0; i < info->ngroups; i++) {
433 if (!strcmp(info->groups[i].name, name))
434 return &info->groups[i];
441 * given a pin number that is local to a pin controller, find out the pin bank
442 * and the register base of the pin bank.
444 static struct rockchip_pin_bank *pin_to_bank(struct rockchip_pinctrl *info,
447 struct rockchip_pin_bank *b = info->ctrl->pin_banks;
449 while (pin >= (b->pin_base + b->nr_pins))
455 static struct rockchip_pin_bank *bank_num_to_bank(
456 struct rockchip_pinctrl *info,
459 struct rockchip_pin_bank *b = info->ctrl->pin_banks;
462 for (i = 0; i < info->ctrl->nr_banks; i++, b++) {
463 if (b->bank_num == num)
467 return ERR_PTR(-EINVAL);
471 * Pinctrl_ops handling
474 static int rockchip_get_groups_count(struct pinctrl_dev *pctldev)
476 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
478 return info->ngroups;
481 static const char *rockchip_get_group_name(struct pinctrl_dev *pctldev,
484 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
486 return info->groups[selector].name;
489 static int rockchip_get_group_pins(struct pinctrl_dev *pctldev,
490 unsigned selector, const unsigned **pins,
493 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
495 if (selector >= info->ngroups)
498 *pins = info->groups[selector].pins;
499 *npins = info->groups[selector].npins;
504 static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
505 struct device_node *np,
506 struct pinctrl_map **map, unsigned *num_maps)
508 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
509 const struct rockchip_pin_group *grp;
510 struct pinctrl_map *new_map;
511 struct device_node *parent;
516 * first find the group of this node and check if we need to create
517 * config maps for pins
519 grp = pinctrl_name_to_group(info, np->name);
521 dev_err(info->dev, "unable to find group for node %s\n",
526 map_num += grp->npins;
527 new_map = devm_kzalloc(pctldev->dev, sizeof(*new_map) * map_num,
536 parent = of_get_parent(np);
538 devm_kfree(pctldev->dev, new_map);
541 new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
542 new_map[0].data.mux.function = parent->name;
543 new_map[0].data.mux.group = np->name;
546 /* create config map */
548 for (i = 0; i < grp->npins; i++) {
549 new_map[i].type = PIN_MAP_TYPE_CONFIGS_PIN;
550 new_map[i].data.configs.group_or_pin =
551 pin_get_name(pctldev, grp->pins[i]);
552 new_map[i].data.configs.configs = grp->data[i].configs;
553 new_map[i].data.configs.num_configs = grp->data[i].nconfigs;
556 dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n",
557 (*map)->data.mux.function, (*map)->data.mux.group, map_num);
562 static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
563 struct pinctrl_map *map, unsigned num_maps)
567 static const struct pinctrl_ops rockchip_pctrl_ops = {
568 .get_groups_count = rockchip_get_groups_count,
569 .get_group_name = rockchip_get_group_name,
570 .get_group_pins = rockchip_get_group_pins,
571 .dt_node_to_map = rockchip_dt_node_to_map,
572 .dt_free_map = rockchip_dt_free_map,
579 static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
581 struct rockchip_pinctrl *info = bank->drvdata;
582 int iomux_num = (pin / 8);
583 struct regmap *regmap;
591 if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
592 dev_err(info->dev, "pin %d is unrouted\n", pin);
596 if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
599 regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
600 ? info->regmap_pmu : info->regmap_base;
602 /* get basic quadrupel of mux registers and the correct reg inside */
603 mask = (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) ? 0xf : 0x3;
604 reg = bank->iomux[iomux_num].offset;
605 if (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) {
613 ret = regmap_read(regmap, reg, &val);
617 return ((val >> bit) & mask);
621 * Set a new mux function for a pin.
623 * The register is divided into the upper and lower 16 bit. When changing
624 * a value, the previous register value is not read and changed. Instead
625 * it seems the changed bits are marked in the upper 16 bit, while the
626 * changed value gets set in the same offset in the lower 16 bit.
627 * All pin settings seem to be 2 bit wide in both the upper and lower
629 * @bank: pin bank to change
630 * @pin: pin to change
631 * @mux: new mux function to set
633 static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
635 struct rockchip_pinctrl *info = bank->drvdata;
636 int iomux_num = (pin / 8);
637 struct regmap *regmap;
646 if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
647 dev_err(info->dev, "pin %d is unrouted\n", pin);
651 if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY) {
652 if (mux != RK_FUNC_GPIO) {
654 "pin %d only supports a gpio mux\n", pin);
661 dev_dbg(info->dev, "setting mux of GPIO%d-%d to %d\n",
662 bank->bank_num, pin, mux);
664 regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
665 ? info->regmap_pmu : info->regmap_base;
667 /* get basic quadrupel of mux registers and the correct reg inside */
668 mask = (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) ? 0xf : 0x3;
669 reg = bank->iomux[iomux_num].offset;
670 if (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) {
678 spin_lock_irqsave(&bank->slock, flags);
680 data = (mask << (bit + 16));
681 rmask = data | (data >> 16);
682 data |= (mux & mask) << bit;
683 ret = regmap_update_bits(regmap, reg, rmask, data);
685 spin_unlock_irqrestore(&bank->slock, flags);
690 #define RK2928_PULL_OFFSET 0x118
691 #define RK2928_PULL_PINS_PER_REG 16
692 #define RK2928_PULL_BANK_STRIDE 8
694 static void rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
695 int pin_num, struct regmap **regmap,
698 struct rockchip_pinctrl *info = bank->drvdata;
700 *regmap = info->regmap_base;
701 *reg = RK2928_PULL_OFFSET;
702 *reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
703 *reg += (pin_num / RK2928_PULL_PINS_PER_REG) * 4;
705 *bit = pin_num % RK2928_PULL_PINS_PER_REG;
708 #define RK3188_PULL_OFFSET 0x164
709 #define RK3188_PULL_BITS_PER_PIN 2
710 #define RK3188_PULL_PINS_PER_REG 8
711 #define RK3188_PULL_BANK_STRIDE 16
712 #define RK3188_PULL_PMU_OFFSET 0x64
714 static void rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
715 int pin_num, struct regmap **regmap,
718 struct rockchip_pinctrl *info = bank->drvdata;
720 /* The first 12 pins of the first bank are located elsewhere */
721 if (bank->bank_num == 0 && pin_num < 12) {
722 *regmap = info->regmap_pmu ? info->regmap_pmu
724 *reg = info->regmap_pmu ? RK3188_PULL_PMU_OFFSET : 0;
725 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
726 *bit = pin_num % RK3188_PULL_PINS_PER_REG;
727 *bit *= RK3188_PULL_BITS_PER_PIN;
729 *regmap = info->regmap_pull ? info->regmap_pull
731 *reg = info->regmap_pull ? 0 : RK3188_PULL_OFFSET;
733 /* correct the offset, as it is the 2nd pull register */
735 *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
736 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
739 * The bits in these registers have an inverse ordering
740 * with the lowest pin being in bits 15:14 and the highest
743 *bit = 7 - (pin_num % RK3188_PULL_PINS_PER_REG);
744 *bit *= RK3188_PULL_BITS_PER_PIN;
748 #define RK3288_PULL_OFFSET 0x140
749 static void rk3288_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
750 int pin_num, struct regmap **regmap,
753 struct rockchip_pinctrl *info = bank->drvdata;
755 /* The first 24 pins of the first bank are located in PMU */
756 if (bank->bank_num == 0) {
757 *regmap = info->regmap_pmu;
758 *reg = RK3188_PULL_PMU_OFFSET;
760 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
761 *bit = pin_num % RK3188_PULL_PINS_PER_REG;
762 *bit *= RK3188_PULL_BITS_PER_PIN;
764 *regmap = info->regmap_base;
765 *reg = RK3288_PULL_OFFSET;
767 /* correct the offset, as we're starting with the 2nd bank */
769 *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
770 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
772 *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
773 *bit *= RK3188_PULL_BITS_PER_PIN;
777 #define RK3288_DRV_PMU_OFFSET 0x70
778 #define RK3288_DRV_GRF_OFFSET 0x1c0
779 #define RK3288_DRV_BITS_PER_PIN 2
780 #define RK3288_DRV_PINS_PER_REG 8
781 #define RK3288_DRV_BANK_STRIDE 16
783 static enum rockchip_pin_drv_type rk3288_calc_drv_reg_and_bit(
784 struct rockchip_pin_bank *bank,
785 int pin_num, struct regmap **regmap,
788 struct rockchip_pinctrl *info = bank->drvdata;
790 /* The first 24 pins of the first bank are located in PMU */
791 if (bank->bank_num == 0) {
792 *regmap = info->regmap_pmu;
793 *reg = RK3288_DRV_PMU_OFFSET;
795 *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
796 *bit = pin_num % RK3288_DRV_PINS_PER_REG;
797 *bit *= RK3288_DRV_BITS_PER_PIN;
799 *regmap = info->regmap_base;
800 *reg = RK3288_DRV_GRF_OFFSET;
802 /* correct the offset, as we're starting with the 2nd bank */
804 *reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
805 *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
807 *bit = (pin_num % RK3288_DRV_PINS_PER_REG);
808 *bit *= RK3288_DRV_BITS_PER_PIN;
811 return DRV_TYPE_IO_DEFAULT;
814 #define RK3228_PULL_OFFSET 0x100
816 static void rk3228_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
817 int pin_num, struct regmap **regmap,
820 struct rockchip_pinctrl *info = bank->drvdata;
822 *regmap = info->regmap_base;
823 *reg = RK3228_PULL_OFFSET;
824 *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
825 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
827 *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
828 *bit *= RK3188_PULL_BITS_PER_PIN;
831 #define RK3228_DRV_GRF_OFFSET 0x200
833 static enum rockchip_pin_drv_type rk3228_calc_drv_reg_and_bit(
834 struct rockchip_pin_bank *bank,
835 int pin_num, struct regmap **regmap,
838 struct rockchip_pinctrl *info = bank->drvdata;
840 *regmap = info->regmap_base;
841 *reg = RK3228_DRV_GRF_OFFSET;
842 *reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
843 *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
845 *bit = (pin_num % RK3288_DRV_PINS_PER_REG);
846 *bit *= RK3288_DRV_BITS_PER_PIN;
848 return DRV_TYPE_IO_DEFAULT;
851 #define RK3366_PULL_GRF_OFFSET 0x110
852 #define RK3366_PULL_PMU_OFFSET 0x10
854 static void rk3366_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
855 int pin_num, struct regmap **regmap,
858 struct rockchip_pinctrl *info = bank->drvdata;
860 /* The bank0:32 and bank1:16 pins are located in PMU */
861 if ((bank->bank_num == 0) || (bank->bank_num == 1)) {
862 *regmap = info->regmap_pmu;
863 *reg = RK3366_PULL_PMU_OFFSET + bank->bank_num * 0x30;
865 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
866 *bit = pin_num % RK3188_PULL_PINS_PER_REG;
867 *bit *= RK3188_PULL_BITS_PER_PIN;
869 *regmap = info->regmap_base;
870 *reg = RK3366_PULL_GRF_OFFSET;
872 /* correct the offset, as we're starting with the 2nd bank */
874 *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
875 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
877 *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
878 *bit *= RK3188_PULL_BITS_PER_PIN;
882 #define RK3366_DRV_PMU_OFFSET 0x20
883 #define RK3366_DRV_GRF_OFFSET 0x210
885 #define RK3366_DRV_GPIO2B3_OFFSET 0x378
886 #define RK3366_DRV_GPIO2B3_BITS 4
888 #define RK3366_DRV_GPIO3A4_OFFSET 0x37c
889 #define RK3366_DRV_GPIO3A4_BITS 4
891 static enum rockchip_pin_drv_type rk3366_calc_drv_reg_and_bit(
892 struct rockchip_pin_bank *bank,
893 int pin_num, struct regmap **regmap,
896 struct rockchip_pinctrl *info = bank->drvdata;
898 /* The bank0:32 and bank1:16 pins are located in PMU */
899 if ((bank->bank_num == 0) || (bank->bank_num == 1)) {
900 *regmap = info->regmap_pmu;
901 *reg = RK3366_DRV_PMU_OFFSET + bank->bank_num * 0x30;
903 *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
904 *bit = pin_num % RK3288_DRV_PINS_PER_REG;
905 *bit *= RK3288_DRV_BITS_PER_PIN;
907 return DRV_TYPE_IO_DEFAULT;
908 } else if ((bank->bank_num == 2) && (pin_num == 11)) {
909 /* GPIO2B3 is a special case in bank2 */
910 *regmap = info->regmap_base;
911 *reg = RK3366_DRV_GPIO2B3_OFFSET;
912 *bit = RK3366_DRV_GPIO2B3_BITS;
914 return DRV_TYPE_IO_WIDE_LEVEL;
915 } else if ((bank->bank_num == 3) && (pin_num == 4)) {
916 /* GPIO3A4 is a special case in bank3 */
917 *regmap = info->regmap_base;
918 *reg = RK3366_DRV_GPIO3A4_OFFSET;
919 *bit = RK3366_DRV_GPIO3A4_BITS;
921 return DRV_TYPE_IO_WIDE_LEVEL;
924 *regmap = info->regmap_base;
925 *reg = RK3366_DRV_GRF_OFFSET;
927 /* correct the offset, as we're starting with the 2nd bank */
929 *reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
930 *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
932 *bit = (pin_num % RK3288_DRV_PINS_PER_REG);
933 *bit *= RK3288_DRV_BITS_PER_PIN;
935 /* special cases need special handle */
936 if ((bank->bank_num == 2) && (pin_num == 14))
937 return DRV_TYPE_IO_WIDE_LEVEL;
938 else if ((bank->bank_num == 2) && (pin_num == 16))
939 return DRV_TYPE_IO_NARROW_LEVEL;
940 else if ((bank->bank_num == 2) && (pin_num >= 24) && (pin_num <= 26))
941 return DRV_TYPE_IO_WIDE_LEVEL;
943 return DRV_TYPE_IO_DEFAULT;
946 #define RK3366_DRV_GPIO2A_EN_OFFSET 0x360
947 #define RK3366_DRV_GPIO2A_EP_OFFSET 0x364
949 #define RK3366_DRV_GPIO2C_EN_OFFSET 0x368
950 #define RK3366_DRV_GPIO2C_EP_OFFSET 0x36C
952 #define RK3366_DRV_GPIO2D_EN_OFFSET 0x370
953 #define RK3366_DRV_GPIO2D_EP_OFFSET 0x374
955 #define RK3366_DRV_GPIO2B3_E_OFFSET 0x378
956 #define RK3366_DRV_GPIO2B3_EN_BIT 0
957 #define RK3366_DRV_GPIO2B3_EP_BIT 2
959 #define RK3366_DRV_GPIO3A4_E_OFFSET 0x37c
960 #define RK3366_DRV_GPIO3A4_EN_BIT 0
961 #define RK3366_DRV_GPIO3A4_EP_BIT 2
963 #define RK3366_DRV_GPIO2B6_E_OFFSET 0x404
964 #define RK3366_DRV_GPIO2B6_EN_BIT 12
965 #define RK3366_DRV_GPIO2B6_EP_BIT 14
967 static enum rockchip_pin_extra_drv_type rk3366_calc_drv_extra_reg_and_bit(
968 struct rockchip_pin_bank *bank,
970 struct regmap **regmap,
973 struct rockchip_pinctrl *info = bank->drvdata;
975 *regmap = info->regmap_base;
976 if (bank->bank_num == 2) {
977 switch (pin_num / 8) {
979 *reg = RK3366_DRV_GPIO2A_EN_OFFSET;
982 /* special cases need special handle */
984 *reg = RK3366_DRV_GPIO2B3_E_OFFSET;
985 *bit = RK3366_DRV_GPIO2B3_EN_BIT;
986 } else if (pin_num == 14) {
987 *reg = RK3366_DRV_GPIO2B6_E_OFFSET;
988 *bit = RK3366_DRV_GPIO2B6_EN_BIT;
993 return DRV_TYPE_EXTRA_SAME_OFFSET;
995 *reg = RK3366_DRV_GPIO2C_EN_OFFSET;
998 *reg = RK3366_DRV_GPIO2D_EN_OFFSET;
1004 *bit = pin_num % RK3288_DRV_PINS_PER_REG;
1005 *bit *= RK3288_DRV_BITS_PER_PIN;
1007 return DRV_TYPE_EXTRA_SAME_BITS;
1010 /* GPIO3A4 is a special case */
1011 if ((pin_num != 4) && (bank->bank_num != 3))
1014 *reg = RK3366_DRV_GPIO3A4_E_OFFSET;
1015 *bit = RK3366_DRV_GPIO3A4_EN_BIT;
1017 return DRV_TYPE_EXTRA_SAME_OFFSET;
1020 #define RK3368_PULL_GRF_OFFSET 0x100
1021 #define RK3368_PULL_PMU_OFFSET 0x10
1023 static void rk3368_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1024 int pin_num, struct regmap **regmap,
1027 struct rockchip_pinctrl *info = bank->drvdata;
1029 /* The first 32 pins of the first bank are located in PMU */
1030 if (bank->bank_num == 0) {
1031 *regmap = info->regmap_pmu;
1032 *reg = RK3368_PULL_PMU_OFFSET;
1034 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1035 *bit = pin_num % RK3188_PULL_PINS_PER_REG;
1036 *bit *= RK3188_PULL_BITS_PER_PIN;
1038 *regmap = info->regmap_base;
1039 *reg = RK3368_PULL_GRF_OFFSET;
1041 /* correct the offset, as we're starting with the 2nd bank */
1043 *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
1044 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1046 *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
1047 *bit *= RK3188_PULL_BITS_PER_PIN;
1051 #define RK3368_DRV_PMU_OFFSET 0x20
1052 #define RK3368_DRV_GRF_OFFSET 0x200
1054 static enum rockchip_pin_drv_type rk3368_calc_drv_reg_and_bit(
1055 struct rockchip_pin_bank *bank,
1056 int pin_num, struct regmap **regmap,
1059 struct rockchip_pinctrl *info = bank->drvdata;
1061 /* The first 32 pins of the first bank are located in PMU */
1062 if (bank->bank_num == 0) {
1063 *regmap = info->regmap_pmu;
1064 *reg = RK3368_DRV_PMU_OFFSET;
1066 *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
1067 *bit = pin_num % RK3288_DRV_PINS_PER_REG;
1068 *bit *= RK3288_DRV_BITS_PER_PIN;
1070 *regmap = info->regmap_base;
1071 *reg = RK3368_DRV_GRF_OFFSET;
1073 /* correct the offset, as we're starting with the 2nd bank */
1075 *reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
1076 *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
1078 *bit = (pin_num % RK3288_DRV_PINS_PER_REG);
1079 *bit *= RK3288_DRV_BITS_PER_PIN;
1082 return DRV_TYPE_IO_DEFAULT;
1085 #define RK3399_PULL_GRF_OFFSET 0xe040
1086 #define RK3399_PULL_PMU_OFFSET 0x40
1087 #define RK3399_DRV_3BITS_PER_PIN 3
1089 static void rk3399_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
1090 int pin_num, struct regmap **regmap,
1093 struct rockchip_pinctrl *info = bank->drvdata;
1095 /* The bank0:16 and bank1:32 pins are located in PMU */
1096 if ((bank->bank_num == 0) || (bank->bank_num == 1)) {
1097 *regmap = info->regmap_pmu;
1098 *reg = RK3399_PULL_PMU_OFFSET;
1100 *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
1102 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1103 *bit = pin_num % RK3188_PULL_PINS_PER_REG;
1104 *bit *= RK3188_PULL_BITS_PER_PIN;
1106 *regmap = info->regmap_base;
1107 *reg = RK3399_PULL_GRF_OFFSET;
1109 /* correct the offset, as we're starting with the 3rd bank */
1111 *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
1112 *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
1114 *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
1115 *bit *= RK3188_PULL_BITS_PER_PIN;
1119 static enum rockchip_pin_drv_type rk3399_calc_drv_reg_and_bit(
1120 struct rockchip_pin_bank *bank,
1121 int pin_num, struct regmap **regmap,
1124 struct rockchip_pinctrl *info = bank->drvdata;
1125 int drv_num = (pin_num / 8);
1127 /* The bank0:16 and bank1:32 pins are located in PMU */
1128 if ((bank->bank_num == 0) || (bank->bank_num == 1))
1129 *regmap = info->regmap_pmu;
1131 *regmap = info->regmap_base;
1133 *reg = bank->drv[drv_num].offset;
1134 if ((bank->drv[drv_num].drv_type == DRV_TYPE_IO_1V8_3V0_AUTO) ||
1135 (bank->drv[drv_num].drv_type == DRV_TYPE_IO_3V3_ONLY))
1136 *bit = (pin_num % 8) * 3;
1138 *bit = (pin_num % 8) * 2;
1140 return DRV_TYPE_IO_DEFAULT;
1143 static int rockchip_perpin_drv_list[DRV_TYPE_MAX][8] = {
1144 { 2, 4, 8, 12, -1, -1, -1, -1 },
1145 { 3, 6, 9, 12, -1, -1, -1, -1 },
1146 { 5, 10, 15, 20, -1, -1, -1, -1 },
1147 { 4, 6, 8, 10, 12, 14, 16, 18 },
1148 { 4, 7, 10, 13, 16, 19, 22, 26 },
1149 { 0, 6, 12, 18, -1, -1, -1, -1 },
1150 { 4, 8, 12, 16, -1, -1, -1, -1 }
1153 static int rockchip_get_drive_perpin(struct rockchip_pin_bank *bank,
1156 struct rockchip_pinctrl *info = bank->drvdata;
1157 struct rockchip_pin_ctrl *ctrl = info->ctrl;
1158 struct regmap *regmap, *extra_regmap;
1159 int reg, ret, extra_reg;
1160 u32 data, temp, rmask_bits;
1164 drv_type = ctrl->drv_calc_reg(bank, pin_num, ®map, ®, &bit);
1166 drv_type = bank->drv[pin_num / 8].drv_type;
1169 case DRV_TYPE_IO_1V8_3V0_AUTO:
1170 case DRV_TYPE_IO_3V3_ONLY:
1171 rmask_bits = RK3399_DRV_3BITS_PER_PIN;
1174 /* regular case, nothing to do */
1178 * drive-strength offset is special, as it is
1179 * spread over 2 registers
1181 ret = regmap_read(regmap, reg, &data);
1185 ret = regmap_read(regmap, reg + 0x4, &temp);
1190 * the bit data[15] contains bit 0 of the value
1191 * while temp[1:0] contains bits 2 and 1
1198 return rockchip_perpin_drv_list[drv_type][data];
1200 /* setting fully enclosed in the second register */
1205 dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
1211 case DRV_TYPE_IO_WIDE_LEVEL:
1212 rmask_bits = RK3288_DRV_BITS_PER_PIN;
1213 /* enable the write to the equivalent lower bits */
1214 ret = regmap_read(regmap, reg, &data);
1218 data &= (1 << rmask_bits) - 1;
1221 * assume the drive strength of N channel and
1222 * P channel are the same.
1224 if (ctrl->drv_calc_extra_reg)
1225 ctrl->drv_calc_extra_reg(bank, pin_num,
1231 * It is enough to read one channel drive strength,
1232 * this is N channel.
1234 ret = regmap_read(extra_regmap, extra_reg, &temp);
1239 temp &= (1 << rmask_bits) - 1;
1241 return (rockchip_perpin_drv_list[drv_type][data]) + (temp * 2);
1242 case DRV_TYPE_IO_DEFAULT:
1243 case DRV_TYPE_IO_1V8_OR_3V0:
1244 case DRV_TYPE_IO_1V8_ONLY:
1245 case DRV_TYPE_IO_NARROW_LEVEL:
1246 rmask_bits = RK3288_DRV_BITS_PER_PIN;
1249 dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
1254 ret = regmap_read(regmap, reg, &data);
1259 data &= (1 << rmask_bits) - 1;
1261 return rockchip_perpin_drv_list[drv_type][data];
1264 static int rockchip_set_drive_perpin(struct rockchip_pin_bank *bank,
1265 int pin_num, int strength)
1267 struct rockchip_pinctrl *info = bank->drvdata;
1268 struct rockchip_pin_ctrl *ctrl = info->ctrl;
1269 struct regmap *regmap, *extra_regmap;
1270 unsigned long flags;
1272 u32 data, temp, rmask, rmask_bits;
1274 int drv_type, extra_drv_type = 0;
1275 int extra_value, extra_reg;
1277 dev_dbg(info->dev, "setting drive of GPIO%d-%d to %d\n",
1278 bank->bank_num, pin_num, strength);
1280 drv_type = ctrl->drv_calc_reg(bank, pin_num, ®map, ®, &bit);
1282 drv_type = bank->drv[pin_num / 8].drv_type;
1286 if (drv_type == DRV_TYPE_IO_WIDE_LEVEL) {
1287 if ((strength % 2 == 0) && (strength <= 24))
1288 ret = ((strength > 18) ? 18 : strength) / 6;
1290 for (i = 0; i < ARRAY_SIZE(rockchip_perpin_drv_list[drv_type]);
1292 if (rockchip_perpin_drv_list[drv_type][i] < 0) {
1293 ret = rockchip_perpin_drv_list[drv_type][i];
1295 } else if (rockchip_perpin_drv_list[drv_type][i] ==
1304 dev_err(info->dev, "unsupported driver strength %d\n",
1309 spin_lock_irqsave(&bank->slock, flags);
1312 case DRV_TYPE_IO_1V8_3V0_AUTO:
1313 case DRV_TYPE_IO_3V3_ONLY:
1314 rmask_bits = RK3399_DRV_3BITS_PER_PIN;
1317 /* regular case, nothing to do */
1321 * drive-strength offset is special, as it is spread
1322 * over 2 registers, the bit data[15] contains bit 0
1323 * of the value while temp[1:0] contains bits 2 and 1
1325 data = (ret & 0x1) << 15;
1326 temp = (ret >> 0x1) & 0x3;
1328 rmask = BIT(15) | BIT(31);
1330 ret = regmap_update_bits(regmap, reg, rmask, data);
1332 spin_unlock_irqrestore(&bank->slock, flags);
1336 rmask = 0x3 | (0x3 << 16);
1337 temp |= (0x3 << 16);
1339 ret = regmap_update_bits(regmap, reg, rmask, temp);
1341 spin_unlock_irqrestore(&bank->slock, flags);
1344 /* setting fully enclosed in the second register */
1349 spin_unlock_irqrestore(&bank->slock, flags);
1350 dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
1355 case DRV_TYPE_IO_WIDE_LEVEL:
1356 extra_value = ((strength -
1357 rockchip_perpin_drv_list[drv_type][ret])) >> 1;
1358 rmask_bits = RK3288_DRV_BITS_PER_PIN;
1361 * assume the drive strength of N channel and
1362 * P channel are the same.
1364 if (ctrl->drv_calc_extra_reg)
1365 extra_drv_type = ctrl->drv_calc_extra_reg(bank, pin_num,
1370 /* enable the write to the equivalent lower bits */
1371 data = ((1 << rmask_bits) - 1) << (extra_bit + 16);
1372 rmask = data | (data >> 16);
1373 data |= (extra_value << extra_bit);
1375 /* write drive strength of N channel */
1376 if (regmap_update_bits(extra_regmap, extra_reg, rmask, data))
1379 if (extra_drv_type == DRV_TYPE_EXTRA_SAME_OFFSET)
1381 else if (extra_drv_type == DRV_TYPE_EXTRA_SAME_BITS)
1386 /* enable the write to the equivalent lower bits */
1387 data = ((1 << rmask_bits) - 1) << (extra_bit + 16);
1388 rmask = data | (data >> 16);
1389 data |= (extra_value << extra_bit);
1391 /* write drive strength of P channel */
1392 if (regmap_update_bits(extra_regmap, extra_reg, rmask, data))
1396 case DRV_TYPE_IO_DEFAULT:
1397 case DRV_TYPE_IO_1V8_OR_3V0:
1398 case DRV_TYPE_IO_1V8_ONLY:
1399 case DRV_TYPE_IO_NARROW_LEVEL:
1400 rmask_bits = RK3288_DRV_BITS_PER_PIN;
1403 spin_unlock_irqrestore(&bank->slock, flags);
1404 dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
1409 /* enable the write to the equivalent lower bits */
1410 data = ((1 << rmask_bits) - 1) << (bit + 16);
1411 rmask = data | (data >> 16);
1412 data |= (ret << bit);
1414 ret = regmap_update_bits(regmap, reg, rmask, data);
1415 spin_unlock_irqrestore(&bank->slock, flags);
1420 static int rockchip_pull_list[PULL_TYPE_MAX][4] = {
1422 PIN_CONFIG_BIAS_DISABLE,
1423 PIN_CONFIG_BIAS_PULL_UP,
1424 PIN_CONFIG_BIAS_PULL_DOWN,
1425 PIN_CONFIG_BIAS_BUS_HOLD
1428 PIN_CONFIG_BIAS_DISABLE,
1429 PIN_CONFIG_BIAS_PULL_DOWN,
1430 PIN_CONFIG_BIAS_DISABLE,
1431 PIN_CONFIG_BIAS_PULL_UP
1435 static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
1437 struct rockchip_pinctrl *info = bank->drvdata;
1438 struct rockchip_pin_ctrl *ctrl = info->ctrl;
1439 struct regmap *regmap;
1440 int reg, ret, pull_type;
1444 /* rk3066b does support any pulls */
1445 if (ctrl->type == RK3066B)
1446 return PIN_CONFIG_BIAS_DISABLE;
1448 ctrl->pull_calc_reg(bank, pin_num, ®map, ®, &bit);
1450 ret = regmap_read(regmap, reg, &data);
1454 switch (ctrl->type) {
1456 return !(data & BIT(bit))
1457 ? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
1458 : PIN_CONFIG_BIAS_DISABLE;
1464 pull_type = bank->pull_type[pin_num / 8];
1466 data &= (1 << RK3188_PULL_BITS_PER_PIN) - 1;
1468 return rockchip_pull_list[pull_type][data];
1470 dev_err(info->dev, "unsupported pinctrl type\n");
1475 static int rockchip_set_pull(struct rockchip_pin_bank *bank,
1476 int pin_num, int pull)
1478 struct rockchip_pinctrl *info = bank->drvdata;
1479 struct rockchip_pin_ctrl *ctrl = info->ctrl;
1480 struct regmap *regmap;
1481 int reg, ret, i, pull_type;
1482 unsigned long flags;
1486 dev_dbg(info->dev, "setting pull of GPIO%d-%d to %d\n",
1487 bank->bank_num, pin_num, pull);
1489 /* rk3066b does support any pulls */
1490 if (ctrl->type == RK3066B)
1491 return pull ? -EINVAL : 0;
1493 ctrl->pull_calc_reg(bank, pin_num, ®map, ®, &bit);
1495 switch (ctrl->type) {
1497 spin_lock_irqsave(&bank->slock, flags);
1499 data = BIT(bit + 16);
1500 if (pull == PIN_CONFIG_BIAS_DISABLE)
1502 ret = regmap_write(regmap, reg, data);
1504 spin_unlock_irqrestore(&bank->slock, flags);
1511 pull_type = bank->pull_type[pin_num / 8];
1513 for (i = 0; i < ARRAY_SIZE(rockchip_pull_list[pull_type]);
1515 if (rockchip_pull_list[pull_type][i] == pull) {
1522 dev_err(info->dev, "unknown pull setting %d\n", pull);
1526 spin_lock_irqsave(&bank->slock, flags);
1528 /* enable the write to the equivalent lower bits */
1529 data = ((1 << RK3188_PULL_BITS_PER_PIN) - 1) << (bit + 16);
1530 rmask = data | (data >> 16);
1531 data |= (ret << bit);
1533 ret = regmap_update_bits(regmap, reg, rmask, data);
1535 spin_unlock_irqrestore(&bank->slock, flags);
1538 dev_err(info->dev, "unsupported pinctrl type\n");
1546 * Pinmux_ops handling
1549 static int rockchip_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
1551 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
1553 return info->nfunctions;
1556 static const char *rockchip_pmx_get_func_name(struct pinctrl_dev *pctldev,
1559 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
1561 return info->functions[selector].name;
1564 static int rockchip_pmx_get_groups(struct pinctrl_dev *pctldev,
1565 unsigned selector, const char * const **groups,
1566 unsigned * const num_groups)
1568 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
1570 *groups = info->functions[selector].groups;
1571 *num_groups = info->functions[selector].ngroups;
1576 static int rockchip_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
1579 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
1580 const unsigned int *pins = info->groups[group].pins;
1581 const struct rockchip_pin_config *data = info->groups[group].data;
1582 struct rockchip_pin_bank *bank;
1585 dev_dbg(info->dev, "enable function %s group %s\n",
1586 info->functions[selector].name, info->groups[group].name);
1589 * for each pin in the pin group selected, program the correspoding pin
1590 * pin function number in the config register.
1592 for (cnt = 0; cnt < info->groups[group].npins; cnt++) {
1593 bank = pin_to_bank(info, pins[cnt]);
1594 ret = rockchip_set_mux(bank, pins[cnt] - bank->pin_base,
1601 /* revert the already done pin settings */
1602 for (cnt--; cnt >= 0; cnt--)
1603 rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
1612 * The calls to gpio_direction_output() and gpio_direction_input()
1613 * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
1614 * function called from the gpiolib interface).
1616 static int _rockchip_pmx_gpio_set_direction(struct gpio_chip *chip,
1617 int pin, bool input)
1619 struct rockchip_pin_bank *bank;
1621 unsigned long flags;
1624 bank = gc_to_pin_bank(chip);
1626 ret = rockchip_set_mux(bank, pin, RK_FUNC_GPIO);
1630 clk_enable(bank->clk);
1631 spin_lock_irqsave(&bank->slock, flags);
1633 data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
1634 /* set bit to 1 for output, 0 for input */
1639 writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
1641 spin_unlock_irqrestore(&bank->slock, flags);
1642 clk_disable(bank->clk);
1647 static int rockchip_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
1648 struct pinctrl_gpio_range *range,
1649 unsigned offset, bool input)
1651 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
1652 struct gpio_chip *chip;
1656 pin = offset - chip->base;
1657 dev_dbg(info->dev, "gpio_direction for pin %u as %s-%d to %s\n",
1658 offset, range->name, pin, input ? "input" : "output");
1660 return _rockchip_pmx_gpio_set_direction(chip, offset - chip->base,
1664 static const struct pinmux_ops rockchip_pmx_ops = {
1665 .get_functions_count = rockchip_pmx_get_funcs_count,
1666 .get_function_name = rockchip_pmx_get_func_name,
1667 .get_function_groups = rockchip_pmx_get_groups,
1668 .set_mux = rockchip_pmx_set,
1669 .gpio_set_direction = rockchip_pmx_gpio_set_direction,
1673 * Pinconf_ops handling
1676 static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
1677 enum pin_config_param pull)
1679 switch (ctrl->type) {
1681 return (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT ||
1682 pull == PIN_CONFIG_BIAS_DISABLE);
1684 return pull ? false : true;
1690 return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT);
1696 static void rockchip_gpio_set(struct gpio_chip *gc, unsigned offset, int value);
1697 static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset);
1699 /* set the pin config settings for a specified pin */
1700 static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
1701 unsigned long *configs, unsigned num_configs)
1703 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
1704 struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
1705 enum pin_config_param param;
1710 for (i = 0; i < num_configs; i++) {
1711 param = pinconf_to_config_param(configs[i]);
1712 arg = pinconf_to_config_argument(configs[i]);
1715 case PIN_CONFIG_BIAS_DISABLE:
1716 rc = rockchip_set_pull(bank, pin - bank->pin_base,
1721 case PIN_CONFIG_BIAS_PULL_UP:
1722 case PIN_CONFIG_BIAS_PULL_DOWN:
1723 case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
1724 case PIN_CONFIG_BIAS_BUS_HOLD:
1725 if (!rockchip_pinconf_pull_valid(info->ctrl, param))
1731 rc = rockchip_set_pull(bank, pin - bank->pin_base,
1736 case PIN_CONFIG_OUTPUT:
1737 rockchip_gpio_set(&bank->gpio_chip,
1738 pin - bank->pin_base, arg);
1739 rc = _rockchip_pmx_gpio_set_direction(&bank->gpio_chip,
1740 pin - bank->pin_base, false);
1744 case PIN_CONFIG_DRIVE_STRENGTH:
1745 /* rk3288 is the first with per-pin drive-strength */
1746 if (!info->ctrl->drv_calc_reg)
1749 rc = rockchip_set_drive_perpin(bank,
1750 pin - bank->pin_base, arg);
1758 } /* for each config */
1763 /* get the pin config settings for a specified pin */
1764 static int rockchip_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
1765 unsigned long *config)
1767 struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
1768 struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
1769 enum pin_config_param param = pinconf_to_config_param(*config);
1774 case PIN_CONFIG_BIAS_DISABLE:
1775 if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
1780 case PIN_CONFIG_BIAS_PULL_UP:
1781 case PIN_CONFIG_BIAS_PULL_DOWN:
1782 case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
1783 case PIN_CONFIG_BIAS_BUS_HOLD:
1784 if (!rockchip_pinconf_pull_valid(info->ctrl, param))
1787 if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
1792 case PIN_CONFIG_OUTPUT:
1793 rc = rockchip_get_mux(bank, pin - bank->pin_base);
1794 if (rc != RK_FUNC_GPIO)
1797 rc = rockchip_gpio_get(&bank->gpio_chip, pin - bank->pin_base);
1803 case PIN_CONFIG_DRIVE_STRENGTH:
1804 /* rk3288 is the first with per-pin drive-strength */
1805 if (!info->ctrl->drv_calc_reg)
1808 rc = rockchip_get_drive_perpin(bank, pin - bank->pin_base);
1819 *config = pinconf_to_config_packed(param, arg);
1824 static const struct pinconf_ops rockchip_pinconf_ops = {
1825 .pin_config_get = rockchip_pinconf_get,
1826 .pin_config_set = rockchip_pinconf_set,
1830 static const struct of_device_id rockchip_bank_match[] = {
1831 { .compatible = "rockchip,gpio-bank" },
1832 { .compatible = "rockchip,rk3188-gpio-bank0" },
1836 static void rockchip_pinctrl_child_count(struct rockchip_pinctrl *info,
1837 struct device_node *np)
1839 struct device_node *child;
1841 for_each_child_of_node(np, child) {
1842 if (of_match_node(rockchip_bank_match, child))
1846 info->ngroups += of_get_child_count(child);
1850 static int rockchip_pinctrl_parse_groups(struct device_node *np,
1851 struct rockchip_pin_group *grp,
1852 struct rockchip_pinctrl *info,
1855 struct rockchip_pin_bank *bank;
1862 dev_dbg(info->dev, "group(%d): %s\n", index, np->name);
1864 /* Initialise group */
1865 grp->name = np->name;
1868 * the binding format is rockchip,pins = <bank pin mux CONFIG>,
1869 * do sanity check and calculate pins number
1871 list = of_get_property(np, "rockchip,pins", &size);
1872 /* we do not check return since it's safe node passed down */
1873 size /= sizeof(*list);
1874 if (!size || size % 4) {
1875 dev_err(info->dev, "wrong pins number or pins and configs should be by 4\n");
1879 grp->npins = size / 4;
1881 grp->pins = devm_kzalloc(info->dev, grp->npins * sizeof(unsigned int),
1883 grp->data = devm_kzalloc(info->dev, grp->npins *
1884 sizeof(struct rockchip_pin_config),
1886 if (!grp->pins || !grp->data)
1889 for (i = 0, j = 0; i < size; i += 4, j++) {
1890 const __be32 *phandle;
1891 struct device_node *np_config;
1893 num = be32_to_cpu(*list++);
1894 bank = bank_num_to_bank(info, num);
1896 return PTR_ERR(bank);
1898 grp->pins[j] = bank->pin_base + be32_to_cpu(*list++);
1899 grp->data[j].func = be32_to_cpu(*list++);
1905 np_config = of_find_node_by_phandle(be32_to_cpup(phandle));
1906 ret = pinconf_generic_parse_dt_config(np_config, NULL,
1907 &grp->data[j].configs, &grp->data[j].nconfigs);
1915 static int rockchip_pinctrl_parse_functions(struct device_node *np,
1916 struct rockchip_pinctrl *info,
1919 struct device_node *child;
1920 struct rockchip_pmx_func *func;
1921 struct rockchip_pin_group *grp;
1923 static u32 grp_index;
1926 dev_dbg(info->dev, "parse function(%d): %s\n", index, np->name);
1928 func = &info->functions[index];
1930 /* Initialise function */
1931 func->name = np->name;
1932 func->ngroups = of_get_child_count(np);
1933 if (func->ngroups <= 0)
1936 func->groups = devm_kzalloc(info->dev,
1937 func->ngroups * sizeof(char *), GFP_KERNEL);
1941 for_each_child_of_node(np, child) {
1942 func->groups[i] = child->name;
1943 grp = &info->groups[grp_index++];
1944 ret = rockchip_pinctrl_parse_groups(child, grp, info, i++);
1954 static int rockchip_pinctrl_parse_dt(struct platform_device *pdev,
1955 struct rockchip_pinctrl *info)
1957 struct device *dev = &pdev->dev;
1958 struct device_node *np = dev->of_node;
1959 struct device_node *child;
1963 rockchip_pinctrl_child_count(info, np);
1965 dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
1966 dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
1968 info->functions = devm_kzalloc(dev, info->nfunctions *
1969 sizeof(struct rockchip_pmx_func),
1971 if (!info->functions) {
1972 dev_err(dev, "failed to allocate memory for function list\n");
1976 info->groups = devm_kzalloc(dev, info->ngroups *
1977 sizeof(struct rockchip_pin_group),
1979 if (!info->groups) {
1980 dev_err(dev, "failed allocate memory for ping group list\n");
1986 for_each_child_of_node(np, child) {
1987 if (of_match_node(rockchip_bank_match, child))
1990 ret = rockchip_pinctrl_parse_functions(child, info, i++);
1992 dev_err(&pdev->dev, "failed to parse function\n");
2001 static int rockchip_pinctrl_register(struct platform_device *pdev,
2002 struct rockchip_pinctrl *info)
2004 struct pinctrl_desc *ctrldesc = &info->pctl;
2005 struct pinctrl_pin_desc *pindesc, *pdesc;
2006 struct rockchip_pin_bank *pin_bank;
2010 ctrldesc->name = "rockchip-pinctrl";
2011 ctrldesc->owner = THIS_MODULE;
2012 ctrldesc->pctlops = &rockchip_pctrl_ops;
2013 ctrldesc->pmxops = &rockchip_pmx_ops;
2014 ctrldesc->confops = &rockchip_pinconf_ops;
2016 pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
2017 info->ctrl->nr_pins, GFP_KERNEL);
2019 dev_err(&pdev->dev, "mem alloc for pin descriptors failed\n");
2022 ctrldesc->pins = pindesc;
2023 ctrldesc->npins = info->ctrl->nr_pins;
2026 for (bank = 0 , k = 0; bank < info->ctrl->nr_banks; bank++) {
2027 pin_bank = &info->ctrl->pin_banks[bank];
2028 for (pin = 0; pin < pin_bank->nr_pins; pin++, k++) {
2030 pdesc->name = kasprintf(GFP_KERNEL, "%s-%d",
2031 pin_bank->name, pin);
2036 ret = rockchip_pinctrl_parse_dt(pdev, info);
2040 info->pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, info);
2041 if (IS_ERR(info->pctl_dev)) {
2042 dev_err(&pdev->dev, "could not register pinctrl driver\n");
2043 return PTR_ERR(info->pctl_dev);
2046 for (bank = 0; bank < info->ctrl->nr_banks; ++bank) {
2047 pin_bank = &info->ctrl->pin_banks[bank];
2048 pin_bank->grange.name = pin_bank->name;
2049 pin_bank->grange.id = bank;
2050 pin_bank->grange.pin_base = pin_bank->pin_base;
2051 pin_bank->grange.base = pin_bank->gpio_chip.base;
2052 pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
2053 pin_bank->grange.gc = &pin_bank->gpio_chip;
2054 pinctrl_add_gpio_range(info->pctl_dev, &pin_bank->grange);
2064 static void rockchip_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
2066 struct rockchip_pin_bank *bank = gc_to_pin_bank(gc);
2067 void __iomem *reg = bank->reg_base + GPIO_SWPORT_DR;
2068 unsigned long flags;
2071 clk_enable(bank->clk);
2072 spin_lock_irqsave(&bank->slock, flags);
2075 data &= ~BIT(offset);
2077 data |= BIT(offset);
2080 spin_unlock_irqrestore(&bank->slock, flags);
2081 clk_disable(bank->clk);
2085 * Returns the level of the pin for input direction and setting of the DR
2086 * register for output gpios.
2088 static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset)
2090 struct rockchip_pin_bank *bank = gc_to_pin_bank(gc);
2093 clk_enable(bank->clk);
2094 data = readl(bank->reg_base + GPIO_EXT_PORT);
2095 clk_disable(bank->clk);
2102 * gpiolib gpio_direction_input callback function. The setting of the pin
2103 * mux function as 'gpio input' will be handled by the pinctrl susbsystem
2106 static int rockchip_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
2108 return pinctrl_gpio_direction_input(gc->base + offset);
2112 * gpiolib gpio_direction_output callback function. The setting of the pin
2113 * mux function as 'gpio output' will be handled by the pinctrl susbsystem
2116 static int rockchip_gpio_direction_output(struct gpio_chip *gc,
2117 unsigned offset, int value)
2119 rockchip_gpio_set(gc, offset, value);
2120 return pinctrl_gpio_direction_output(gc->base + offset);
2124 * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
2125 * and a virtual IRQ, if not already present.
2127 static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
2129 struct rockchip_pin_bank *bank = gc_to_pin_bank(gc);
2135 virq = irq_create_mapping(bank->domain, offset);
2137 return (virq) ? : -ENXIO;
2140 static const struct gpio_chip rockchip_gpiolib_chip = {
2141 .request = gpiochip_generic_request,
2142 .free = gpiochip_generic_free,
2143 .set = rockchip_gpio_set,
2144 .get = rockchip_gpio_get,
2145 .direction_input = rockchip_gpio_direction_input,
2146 .direction_output = rockchip_gpio_direction_output,
2147 .to_irq = rockchip_gpio_to_irq,
2148 .owner = THIS_MODULE,
2152 * Interrupt handling
2155 static void rockchip_irq_demux(struct irq_desc *desc)
2157 struct irq_chip *chip = irq_desc_get_chip(desc);
2158 struct rockchip_pin_bank *bank = irq_desc_get_handler_data(desc);
2161 dev_dbg(bank->drvdata->dev, "got irq for bank %s\n", bank->name);
2163 chained_irq_enter(chip, desc);
2165 pend = readl_relaxed(bank->reg_base + GPIO_INT_STATUS);
2168 unsigned int irq, virq;
2172 virq = irq_linear_revmap(bank->domain, irq);
2175 dev_err(bank->drvdata->dev, "unmapped irq %d\n", irq);
2179 dev_dbg(bank->drvdata->dev, "handling irq %d\n", irq);
2182 * Triggering IRQ on both rising and falling edge
2183 * needs manual intervention.
2185 if (bank->toggle_edge_mode & BIT(irq)) {
2186 u32 data, data_old, polarity;
2187 unsigned long flags;
2189 data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT);
2191 spin_lock_irqsave(&bank->slock, flags);
2193 polarity = readl_relaxed(bank->reg_base +
2195 if (data & BIT(irq))
2196 polarity &= ~BIT(irq);
2198 polarity |= BIT(irq);
2200 bank->reg_base + GPIO_INT_POLARITY);
2202 spin_unlock_irqrestore(&bank->slock, flags);
2205 data = readl_relaxed(bank->reg_base +
2207 } while ((data & BIT(irq)) != (data_old & BIT(irq)));
2210 generic_handle_irq(virq);
2213 chained_irq_exit(chip, desc);
2216 static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
2218 struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
2219 struct rockchip_pin_bank *bank = gc->private;
2220 u32 mask = BIT(d->hwirq);
2224 unsigned long flags;
2227 /* make sure the pin is configured as gpio input */
2228 ret = rockchip_set_mux(bank, d->hwirq, RK_FUNC_GPIO);
2232 clk_enable(bank->clk);
2233 spin_lock_irqsave(&bank->slock, flags);
2235 data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
2237 writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
2239 spin_unlock_irqrestore(&bank->slock, flags);
2241 if (type & IRQ_TYPE_EDGE_BOTH)
2242 irq_set_handler_locked(d, handle_edge_irq);
2244 irq_set_handler_locked(d, handle_level_irq);
2246 spin_lock_irqsave(&bank->slock, flags);
2249 level = readl_relaxed(gc->reg_base + GPIO_INTTYPE_LEVEL);
2250 polarity = readl_relaxed(gc->reg_base + GPIO_INT_POLARITY);
2253 case IRQ_TYPE_EDGE_BOTH:
2254 bank->toggle_edge_mode |= mask;
2258 * Determine gpio state. If 1 next interrupt should be falling
2261 data = readl(bank->reg_base + GPIO_EXT_PORT);
2267 case IRQ_TYPE_EDGE_RISING:
2268 bank->toggle_edge_mode &= ~mask;
2272 case IRQ_TYPE_EDGE_FALLING:
2273 bank->toggle_edge_mode &= ~mask;
2277 case IRQ_TYPE_LEVEL_HIGH:
2278 bank->toggle_edge_mode &= ~mask;
2282 case IRQ_TYPE_LEVEL_LOW:
2283 bank->toggle_edge_mode &= ~mask;
2289 spin_unlock_irqrestore(&bank->slock, flags);
2290 clk_disable(bank->clk);
2294 writel_relaxed(level, gc->reg_base + GPIO_INTTYPE_LEVEL);
2295 writel_relaxed(polarity, gc->reg_base + GPIO_INT_POLARITY);
2298 spin_unlock_irqrestore(&bank->slock, flags);
2299 clk_disable(bank->clk);
2304 static void rockchip_irq_suspend(struct irq_data *d)
2306 struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
2307 struct rockchip_pin_bank *bank = gc->private;
2309 clk_enable(bank->clk);
2310 bank->saved_masks = irq_reg_readl(gc, GPIO_INTMASK);
2311 irq_reg_writel(gc, ~gc->wake_active, GPIO_INTMASK);
2312 clk_disable(bank->clk);
2315 static void rockchip_irq_resume(struct irq_data *d)
2317 struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
2318 struct rockchip_pin_bank *bank = gc->private;
2320 clk_enable(bank->clk);
2321 irq_reg_writel(gc, bank->saved_masks, GPIO_INTMASK);
2322 clk_disable(bank->clk);
2325 static void rockchip_irq_gc_mask_clr_bit(struct irq_data *d)
2327 struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
2328 struct rockchip_pin_bank *bank = gc->private;
2330 clk_enable(bank->clk);
2331 irq_gc_mask_clr_bit(d);
2334 void rockchip_irq_gc_mask_set_bit(struct irq_data *d)
2336 struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
2337 struct rockchip_pin_bank *bank = gc->private;
2339 irq_gc_mask_set_bit(d);
2340 clk_disable(bank->clk);
2343 static int rockchip_interrupts_register(struct platform_device *pdev,
2344 struct rockchip_pinctrl *info)
2346 struct rockchip_pin_ctrl *ctrl = info->ctrl;
2347 struct rockchip_pin_bank *bank = ctrl->pin_banks;
2348 unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
2349 struct irq_chip_generic *gc;
2353 for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
2355 dev_warn(&pdev->dev, "bank %s is not valid\n",
2360 ret = clk_enable(bank->clk);
2362 dev_err(&pdev->dev, "failed to enable clock for bank %s\n",
2367 bank->domain = irq_domain_add_linear(bank->of_node, 32,
2368 &irq_generic_chip_ops, NULL);
2369 if (!bank->domain) {
2370 dev_warn(&pdev->dev, "could not initialize irq domain for bank %s\n",
2372 clk_disable(bank->clk);
2376 ret = irq_alloc_domain_generic_chips(bank->domain, 32, 1,
2377 "rockchip_gpio_irq", handle_level_irq,
2378 clr, 0, IRQ_GC_INIT_MASK_CACHE);
2380 dev_err(&pdev->dev, "could not alloc generic chips for bank %s\n",
2382 irq_domain_remove(bank->domain);
2383 clk_disable(bank->clk);
2388 * Linux assumes that all interrupts start out disabled/masked.
2389 * Our driver only uses the concept of masked and always keeps
2390 * things enabled, so for us that's all masked and all enabled.
2392 writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTMASK);
2393 writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTEN);
2395 gc = irq_get_domain_generic_chip(bank->domain, 0);
2396 gc->reg_base = bank->reg_base;
2398 gc->chip_types[0].regs.mask = GPIO_INTMASK;
2399 gc->chip_types[0].regs.ack = GPIO_PORTS_EOI;
2400 gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
2401 gc->chip_types[0].chip.irq_mask = rockchip_irq_gc_mask_set_bit;
2402 gc->chip_types[0].chip.irq_unmask =
2403 rockchip_irq_gc_mask_clr_bit;
2404 gc->chip_types[0].chip.irq_set_wake = irq_gc_set_wake;
2405 gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
2406 gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
2407 gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
2408 gc->wake_enabled = IRQ_MSK(bank->nr_pins);
2410 irq_set_chained_handler_and_data(bank->irq,
2411 rockchip_irq_demux, bank);
2413 /* map the gpio irqs here, when the clock is still running */
2414 for (j = 0 ; j < 32 ; j++)
2415 irq_create_mapping(bank->domain, j);
2417 clk_disable(bank->clk);
2423 static int rockchip_gpiolib_register(struct platform_device *pdev,
2424 struct rockchip_pinctrl *info)
2426 struct rockchip_pin_ctrl *ctrl = info->ctrl;
2427 struct rockchip_pin_bank *bank = ctrl->pin_banks;
2428 struct gpio_chip *gc;
2432 for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
2434 dev_warn(&pdev->dev, "bank %s is not valid\n",
2439 bank->gpio_chip = rockchip_gpiolib_chip;
2441 gc = &bank->gpio_chip;
2442 gc->base = bank->pin_base;
2443 gc->ngpio = bank->nr_pins;
2444 gc->dev = &pdev->dev;
2445 gc->of_node = bank->of_node;
2446 gc->label = bank->name;
2448 ret = gpiochip_add(gc);
2450 dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
2456 rockchip_interrupts_register(pdev, info);
2461 for (--i, --bank; i >= 0; --i, --bank) {
2464 gpiochip_remove(&bank->gpio_chip);
2469 static int rockchip_gpiolib_unregister(struct platform_device *pdev,
2470 struct rockchip_pinctrl *info)
2472 struct rockchip_pin_ctrl *ctrl = info->ctrl;
2473 struct rockchip_pin_bank *bank = ctrl->pin_banks;
2476 for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
2479 gpiochip_remove(&bank->gpio_chip);
2485 static int rockchip_get_bank_data(struct rockchip_pin_bank *bank,
2486 struct rockchip_pinctrl *info)
2488 struct resource res;
2491 if (of_address_to_resource(bank->of_node, 0, &res)) {
2492 dev_err(info->dev, "cannot find IO resource for bank\n");
2496 bank->reg_base = devm_ioremap_resource(info->dev, &res);
2497 if (IS_ERR(bank->reg_base))
2498 return PTR_ERR(bank->reg_base);
2501 * special case, where parts of the pull setting-registers are
2502 * part of the PMU register space
2504 if (of_device_is_compatible(bank->of_node,
2505 "rockchip,rk3188-gpio-bank0")) {
2506 struct device_node *node;
2508 node = of_parse_phandle(bank->of_node->parent,
2511 if (of_address_to_resource(bank->of_node, 1, &res)) {
2512 dev_err(info->dev, "cannot find IO resource for bank\n");
2516 base = devm_ioremap_resource(info->dev, &res);
2518 return PTR_ERR(base);
2519 rockchip_regmap_config.max_register =
2520 resource_size(&res) - 4;
2521 rockchip_regmap_config.name =
2522 "rockchip,rk3188-gpio-bank0-pull";
2523 bank->regmap_pull = devm_regmap_init_mmio(info->dev,
2525 &rockchip_regmap_config);
2529 bank->irq = irq_of_parse_and_map(bank->of_node, 0);
2531 bank->clk = of_clk_get(bank->of_node, 0);
2532 if (IS_ERR(bank->clk))
2533 return PTR_ERR(bank->clk);
2535 return clk_prepare(bank->clk);
2538 static const struct of_device_id rockchip_pinctrl_dt_match[];
2540 /* retrieve the soc specific data */
2541 static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
2542 struct rockchip_pinctrl *d,
2543 struct platform_device *pdev)
2545 const struct of_device_id *match;
2546 struct device_node *node = pdev->dev.of_node;
2547 struct device_node *np;
2548 struct rockchip_pin_ctrl *ctrl;
2549 struct rockchip_pin_bank *bank;
2550 int grf_offs, pmu_offs, drv_grf_offs, drv_pmu_offs, i, j;
2552 match = of_match_node(rockchip_pinctrl_dt_match, node);
2553 ctrl = (struct rockchip_pin_ctrl *)match->data;
2555 for_each_child_of_node(node, np) {
2556 if (!of_find_property(np, "gpio-controller", NULL))
2559 bank = ctrl->pin_banks;
2560 for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
2561 if (!strcmp(bank->name, np->name)) {
2564 if (!rockchip_get_bank_data(bank, d))
2572 grf_offs = ctrl->grf_mux_offset;
2573 pmu_offs = ctrl->pmu_mux_offset;
2574 drv_pmu_offs = ctrl->pmu_drv_offset;
2575 drv_grf_offs = ctrl->grf_drv_offset;
2576 bank = ctrl->pin_banks;
2577 for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
2580 spin_lock_init(&bank->slock);
2582 bank->pin_base = ctrl->nr_pins;
2583 ctrl->nr_pins += bank->nr_pins;
2585 /* calculate iomux and drv offsets */
2586 for (j = 0; j < 4; j++) {
2587 struct rockchip_iomux *iom = &bank->iomux[j];
2588 struct rockchip_drv *drv = &bank->drv[j];
2591 if (bank_pins >= bank->nr_pins)
2594 /* preset iomux offset value, set new start value */
2595 if (iom->offset >= 0) {
2596 if (iom->type & IOMUX_SOURCE_PMU)
2597 pmu_offs = iom->offset;
2599 grf_offs = iom->offset;
2600 } else { /* set current iomux offset */
2601 iom->offset = (iom->type & IOMUX_SOURCE_PMU) ?
2602 pmu_offs : grf_offs;
2605 /* preset drv offset value, set new start value */
2606 if (drv->offset >= 0) {
2607 if (iom->type & IOMUX_SOURCE_PMU)
2608 drv_pmu_offs = drv->offset;
2610 drv_grf_offs = drv->offset;
2611 } else { /* set current drv offset */
2612 drv->offset = (iom->type & IOMUX_SOURCE_PMU) ?
2613 drv_pmu_offs : drv_grf_offs;
2616 dev_dbg(d->dev, "bank %d, iomux %d has iom_offset 0x%x drv_offset 0x%x\n",
2617 i, j, iom->offset, drv->offset);
2620 * Increase offset according to iomux width.
2621 * 4bit iomux'es are spread over two registers.
2623 inc = (iom->type & IOMUX_WIDTH_4BIT) ? 8 : 4;
2624 if (iom->type & IOMUX_SOURCE_PMU)
2630 * Increase offset according to drv width.
2631 * 3bit drive-strenth'es are spread over two registers.
2633 if ((drv->drv_type == DRV_TYPE_IO_1V8_3V0_AUTO) ||
2634 (drv->drv_type == DRV_TYPE_IO_3V3_ONLY))
2639 if (iom->type & IOMUX_SOURCE_PMU)
2640 drv_pmu_offs += inc;
2642 drv_grf_offs += inc;
2651 #define RK3288_GRF_GPIO6C_IOMUX 0x64
2652 #define GPIO6C6_SEL_WRITE_ENABLE BIT(28)
2654 static u32 rk3288_grf_gpio6c_iomux;
2656 static int __maybe_unused rockchip_pinctrl_suspend(struct device *dev)
2658 struct rockchip_pinctrl *info = dev_get_drvdata(dev);
2659 int ret = pinctrl_force_sleep(info->pctl_dev);
2665 * RK3288 GPIO6_C6 mux would be modified by Maskrom when resume, so save
2666 * the setting here, and restore it at resume.
2668 if (info->ctrl->type == RK3288) {
2669 ret = regmap_read(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
2670 &rk3288_grf_gpio6c_iomux);
2672 pinctrl_force_default(info->pctl_dev);
2680 static int __maybe_unused rockchip_pinctrl_resume(struct device *dev)
2682 struct rockchip_pinctrl *info = dev_get_drvdata(dev);
2683 int ret = regmap_write(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
2684 rk3288_grf_gpio6c_iomux |
2685 GPIO6C6_SEL_WRITE_ENABLE);
2690 return pinctrl_force_default(info->pctl_dev);
2693 static SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
2694 rockchip_pinctrl_resume);
2696 static int rockchip_pinctrl_probe(struct platform_device *pdev)
2698 struct rockchip_pinctrl *info;
2699 struct device *dev = &pdev->dev;
2700 struct rockchip_pin_ctrl *ctrl;
2701 struct device_node *np = pdev->dev.of_node, *node;
2702 struct resource *res;
2706 if (!dev->of_node) {
2707 dev_err(dev, "device tree node not found\n");
2711 info = devm_kzalloc(dev, sizeof(struct rockchip_pinctrl), GFP_KERNEL);
2717 ctrl = rockchip_pinctrl_get_soc_data(info, pdev);
2719 dev_err(dev, "driver data not available\n");
2724 node = of_parse_phandle(np, "rockchip,grf", 0);
2726 info->regmap_base = syscon_node_to_regmap(node);
2727 if (IS_ERR(info->regmap_base))
2728 return PTR_ERR(info->regmap_base);
2730 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2731 base = devm_ioremap_resource(&pdev->dev, res);
2733 return PTR_ERR(base);
2735 rockchip_regmap_config.max_register = resource_size(res) - 4;
2736 rockchip_regmap_config.name = "rockchip,pinctrl";
2737 info->regmap_base = devm_regmap_init_mmio(&pdev->dev, base,
2738 &rockchip_regmap_config);
2740 /* to check for the old dt-bindings */
2741 info->reg_size = resource_size(res);
2743 /* Honor the old binding, with pull registers as 2nd resource */
2744 if (ctrl->type == RK3188 && info->reg_size < 0x200) {
2745 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
2746 base = devm_ioremap_resource(&pdev->dev, res);
2748 return PTR_ERR(base);
2750 rockchip_regmap_config.max_register =
2751 resource_size(res) - 4;
2752 rockchip_regmap_config.name = "rockchip,pinctrl-pull";
2753 info->regmap_pull = devm_regmap_init_mmio(&pdev->dev,
2755 &rockchip_regmap_config);
2759 /* try to find the optional reference to the pmu syscon */
2760 node = of_parse_phandle(np, "rockchip,pmu", 0);
2762 info->regmap_pmu = syscon_node_to_regmap(node);
2763 if (IS_ERR(info->regmap_pmu))
2764 return PTR_ERR(info->regmap_pmu);
2767 ret = rockchip_gpiolib_register(pdev, info);
2771 ret = rockchip_pinctrl_register(pdev, info);
2773 rockchip_gpiolib_unregister(pdev, info);
2777 platform_set_drvdata(pdev, info);
2782 static struct rockchip_pin_bank rk2928_pin_banks[] = {
2783 PIN_BANK(0, 32, "gpio0"),
2784 PIN_BANK(1, 32, "gpio1"),
2785 PIN_BANK(2, 32, "gpio2"),
2786 PIN_BANK(3, 32, "gpio3"),
2789 static struct rockchip_pin_ctrl rk2928_pin_ctrl = {
2790 .pin_banks = rk2928_pin_banks,
2791 .nr_banks = ARRAY_SIZE(rk2928_pin_banks),
2792 .label = "RK2928-GPIO",
2794 .grf_mux_offset = 0xa8,
2795 .pull_calc_reg = rk2928_calc_pull_reg_and_bit,
2798 static struct rockchip_pin_bank rk3036_pin_banks[] = {
2799 PIN_BANK(0, 32, "gpio0"),
2800 PIN_BANK(1, 32, "gpio1"),
2801 PIN_BANK(2, 32, "gpio2"),
2804 static struct rockchip_pin_ctrl rk3036_pin_ctrl = {
2805 .pin_banks = rk3036_pin_banks,
2806 .nr_banks = ARRAY_SIZE(rk3036_pin_banks),
2807 .label = "RK3036-GPIO",
2809 .grf_mux_offset = 0xa8,
2810 .pull_calc_reg = rk2928_calc_pull_reg_and_bit,
2813 static struct rockchip_pin_bank rk3066a_pin_banks[] = {
2814 PIN_BANK(0, 32, "gpio0"),
2815 PIN_BANK(1, 32, "gpio1"),
2816 PIN_BANK(2, 32, "gpio2"),
2817 PIN_BANK(3, 32, "gpio3"),
2818 PIN_BANK(4, 32, "gpio4"),
2819 PIN_BANK(6, 16, "gpio6"),
2822 static struct rockchip_pin_ctrl rk3066a_pin_ctrl = {
2823 .pin_banks = rk3066a_pin_banks,
2824 .nr_banks = ARRAY_SIZE(rk3066a_pin_banks),
2825 .label = "RK3066a-GPIO",
2827 .grf_mux_offset = 0xa8,
2828 .pull_calc_reg = rk2928_calc_pull_reg_and_bit,
2831 static struct rockchip_pin_bank rk3066b_pin_banks[] = {
2832 PIN_BANK(0, 32, "gpio0"),
2833 PIN_BANK(1, 32, "gpio1"),
2834 PIN_BANK(2, 32, "gpio2"),
2835 PIN_BANK(3, 32, "gpio3"),
2838 static struct rockchip_pin_ctrl rk3066b_pin_ctrl = {
2839 .pin_banks = rk3066b_pin_banks,
2840 .nr_banks = ARRAY_SIZE(rk3066b_pin_banks),
2841 .label = "RK3066b-GPIO",
2843 .grf_mux_offset = 0x60,
2846 static struct rockchip_pin_bank rk3188_pin_banks[] = {
2847 PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0),
2848 PIN_BANK(1, 32, "gpio1"),
2849 PIN_BANK(2, 32, "gpio2"),
2850 PIN_BANK(3, 32, "gpio3"),
2853 static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
2854 .pin_banks = rk3188_pin_banks,
2855 .nr_banks = ARRAY_SIZE(rk3188_pin_banks),
2856 .label = "RK3188-GPIO",
2858 .grf_mux_offset = 0x60,
2859 .pull_calc_reg = rk3188_calc_pull_reg_and_bit,
2862 static struct rockchip_pin_bank rk3228_pin_banks[] = {
2863 PIN_BANK(0, 32, "gpio0"),
2864 PIN_BANK(1, 32, "gpio1"),
2865 PIN_BANK(2, 32, "gpio2"),
2866 PIN_BANK(3, 32, "gpio3"),
2869 static struct rockchip_pin_ctrl rk3228_pin_ctrl = {
2870 .pin_banks = rk3228_pin_banks,
2871 .nr_banks = ARRAY_SIZE(rk3228_pin_banks),
2872 .label = "RK3228-GPIO",
2874 .grf_mux_offset = 0x0,
2875 .pull_calc_reg = rk3228_calc_pull_reg_and_bit,
2876 .drv_calc_reg = rk3228_calc_drv_reg_and_bit,
2879 static struct rockchip_pin_bank rk3288_pin_banks[] = {
2880 PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0", IOMUX_SOURCE_PMU,
2885 PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_UNROUTED,
2890 PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, IOMUX_UNROUTED),
2891 PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, IOMUX_WIDTH_4BIT),
2892 PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_4BIT,
2897 PIN_BANK_IOMUX_FLAGS(5, 32, "gpio5", IOMUX_UNROUTED,
2902 PIN_BANK_IOMUX_FLAGS(6, 32, "gpio6", 0, 0, 0, IOMUX_UNROUTED),
2903 PIN_BANK_IOMUX_FLAGS(7, 32, "gpio7", 0,
2908 PIN_BANK(8, 16, "gpio8"),
2911 static struct rockchip_pin_ctrl rk3288_pin_ctrl = {
2912 .pin_banks = rk3288_pin_banks,
2913 .nr_banks = ARRAY_SIZE(rk3288_pin_banks),
2914 .label = "RK3288-GPIO",
2916 .grf_mux_offset = 0x0,
2917 .pmu_mux_offset = 0x84,
2918 .pull_calc_reg = rk3288_calc_pull_reg_and_bit,
2919 .drv_calc_reg = rk3288_calc_drv_reg_and_bit,
2922 static struct rockchip_pin_bank rk3366_pin_banks[] = {
2923 PIN_BANK_IOMUX_DRV_FLAGS(0, 32, "gpio0",
2928 DRV_TYPE_IO_NARROW_LEVEL,
2929 DRV_TYPE_IO_NARROW_LEVEL,
2930 DRV_TYPE_IO_NARROW_LEVEL,
2931 DRV_TYPE_IO_NARROW_LEVEL
2933 PIN_BANK_IOMUX_FLAGS_OFFSET_DRV_FLAGS(1, 32, "gpio1",
2942 DRV_TYPE_IO_NARROW_LEVEL,
2943 DRV_TYPE_IO_NARROW_LEVEL,
2944 DRV_TYPE_IO_NARROW_LEVEL,
2945 DRV_TYPE_IO_NARROW_LEVEL
2947 PIN_BANK_DRV_FLAGS(2, 32, "gpio2",
2948 DRV_TYPE_IO_WIDE_LEVEL,
2949 DRV_TYPE_IO_NARROW_LEVEL,
2950 DRV_TYPE_IO_WIDE_LEVEL,
2951 DRV_TYPE_IO_NARROW_LEVEL
2953 PIN_BANK_DRV_FLAGS(3, 32, "gpio3",
2954 DRV_TYPE_IO_NARROW_LEVEL,
2955 DRV_TYPE_IO_NARROW_LEVEL,
2956 DRV_TYPE_IO_NARROW_LEVEL,
2957 DRV_TYPE_IO_NARROW_LEVEL
2959 PIN_BANK_DRV_FLAGS(4, 32, "gpio4",
2960 DRV_TYPE_IO_NARROW_LEVEL,
2961 DRV_TYPE_IO_NARROW_LEVEL,
2962 DRV_TYPE_IO_NARROW_LEVEL,
2963 DRV_TYPE_IO_NARROW_LEVEL
2965 PIN_BANK_DRV_FLAGS(5, 32, "gpio5",
2966 DRV_TYPE_IO_NARROW_LEVEL,
2967 DRV_TYPE_IO_NARROW_LEVEL,
2968 DRV_TYPE_IO_NARROW_LEVEL,
2969 DRV_TYPE_IO_NARROW_LEVEL
2973 static struct rockchip_pin_ctrl rk3366_pin_ctrl = {
2974 .pin_banks = rk3366_pin_banks,
2975 .nr_banks = ARRAY_SIZE(rk3366_pin_banks),
2976 .label = "RK3366-GPIO",
2978 .grf_mux_offset = 0x10,
2979 .pmu_mux_offset = 0x0,
2980 .pull_calc_reg = rk3366_calc_pull_reg_and_bit,
2981 .drv_calc_reg = rk3366_calc_drv_reg_and_bit,
2982 .drv_calc_extra_reg = rk3366_calc_drv_extra_reg_and_bit,
2985 static struct rockchip_pin_bank rk3368_pin_banks[] = {
2986 PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
2991 PIN_BANK(1, 32, "gpio1"),
2992 PIN_BANK(2, 32, "gpio2"),
2993 PIN_BANK(3, 32, "gpio3"),
2996 static struct rockchip_pin_ctrl rk3368_pin_ctrl = {
2997 .pin_banks = rk3368_pin_banks,
2998 .nr_banks = ARRAY_SIZE(rk3368_pin_banks),
2999 .label = "RK3368-GPIO",
3001 .grf_mux_offset = 0x0,
3002 .pmu_mux_offset = 0x0,
3003 .pull_calc_reg = rk3368_calc_pull_reg_and_bit,
3004 .drv_calc_reg = rk3368_calc_drv_reg_and_bit,
3007 static struct rockchip_pin_bank rk3399_pin_banks[] = {
3008 PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(0, 32, "gpio0",
3013 DRV_TYPE_IO_1V8_ONLY,
3014 DRV_TYPE_IO_1V8_ONLY,
3015 DRV_TYPE_IO_DEFAULT,
3016 DRV_TYPE_IO_DEFAULT,
3021 PULL_TYPE_IO_1V8_ONLY,
3022 PULL_TYPE_IO_1V8_ONLY,
3023 PULL_TYPE_IO_DEFAULT,
3024 PULL_TYPE_IO_DEFAULT),
3025 PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET(1, 32, "gpio1", IOMUX_SOURCE_PMU,
3029 DRV_TYPE_IO_1V8_OR_3V0,
3030 DRV_TYPE_IO_1V8_OR_3V0,
3031 DRV_TYPE_IO_1V8_OR_3V0,
3032 DRV_TYPE_IO_1V8_OR_3V0,
3038 PIN_BANK_DRV_FLAGS_PULL_FLAGS(2, 32, "gpio2", DRV_TYPE_IO_1V8_OR_3V0,
3039 DRV_TYPE_IO_1V8_OR_3V0,
3040 DRV_TYPE_IO_1V8_ONLY,
3041 DRV_TYPE_IO_1V8_ONLY,
3042 PULL_TYPE_IO_DEFAULT,
3043 PULL_TYPE_IO_DEFAULT,
3044 PULL_TYPE_IO_1V8_ONLY,
3045 PULL_TYPE_IO_1V8_ONLY
3047 PIN_BANK_DRV_FLAGS(3, 32, "gpio3", DRV_TYPE_IO_3V3_ONLY,
3048 DRV_TYPE_IO_3V3_ONLY,
3049 DRV_TYPE_IO_3V3_ONLY,
3050 DRV_TYPE_IO_1V8_OR_3V0
3052 PIN_BANK_DRV_FLAGS(4, 32, "gpio4", DRV_TYPE_IO_1V8_OR_3V0,
3053 DRV_TYPE_IO_1V8_3V0_AUTO,
3054 DRV_TYPE_IO_1V8_OR_3V0,
3055 DRV_TYPE_IO_1V8_OR_3V0
3059 static struct rockchip_pin_ctrl rk3399_pin_ctrl = {
3060 .pin_banks = rk3399_pin_banks,
3061 .nr_banks = ARRAY_SIZE(rk3399_pin_banks),
3062 .label = "RK3399-GPIO",
3064 .grf_mux_offset = 0xe000,
3065 .pmu_mux_offset = 0x0,
3066 .grf_drv_offset = 0xe100,
3067 .pmu_drv_offset = 0x80,
3068 .pull_calc_reg = rk3399_calc_pull_reg_and_bit,
3069 .drv_calc_reg = rk3399_calc_drv_reg_and_bit,
3072 static const struct of_device_id rockchip_pinctrl_dt_match[] = {
3073 { .compatible = "rockchip,rk2928-pinctrl",
3074 .data = (void *)&rk2928_pin_ctrl },
3075 { .compatible = "rockchip,rk3036-pinctrl",
3076 .data = (void *)&rk3036_pin_ctrl },
3077 { .compatible = "rockchip,rk3066a-pinctrl",
3078 .data = (void *)&rk3066a_pin_ctrl },
3079 { .compatible = "rockchip,rk3066b-pinctrl",
3080 .data = (void *)&rk3066b_pin_ctrl },
3081 { .compatible = "rockchip,rk3188-pinctrl",
3082 .data = (void *)&rk3188_pin_ctrl },
3083 { .compatible = "rockchip,rk3228-pinctrl",
3084 .data = (void *)&rk3228_pin_ctrl },
3085 { .compatible = "rockchip,rk3288-pinctrl",
3086 .data = (void *)&rk3288_pin_ctrl },
3087 { .compatible = "rockchip,rk3366-pinctrl",
3088 .data = (void *)&rk3366_pin_ctrl },
3089 { .compatible = "rockchip,rk3368-pinctrl",
3090 .data = (void *)&rk3368_pin_ctrl },
3091 { .compatible = "rockchip,rk3399-pinctrl",
3092 .data = (void *)&rk3399_pin_ctrl },
3095 MODULE_DEVICE_TABLE(of, rockchip_pinctrl_dt_match);
3097 static struct platform_driver rockchip_pinctrl_driver = {
3098 .probe = rockchip_pinctrl_probe,
3100 .name = "rockchip-pinctrl",
3101 .pm = &rockchip_pinctrl_dev_pm_ops,
3102 .of_match_table = rockchip_pinctrl_dt_match,
3106 static int __init rockchip_pinctrl_drv_register(void)
3108 return platform_driver_register(&rockchip_pinctrl_driver);
3110 postcore_initcall(rockchip_pinctrl_drv_register);
3112 MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
3113 MODULE_DESCRIPTION("Rockchip pinctrl driver");
3114 MODULE_LICENSE("GPL v2");