1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Renesas RZ/G2L Pin Control and GPIO driver core
4  *
5  * Copyright (C) 2021 Renesas Electronics Corporation.
6  */
7 
8 #include <linux/bitops.h>
9 #include <linux/clk.h>
10 #include <linux/gpio/driver.h>
11 #include <linux/io.h>
12 #include <linux/module.h>
13 #include <linux/of_device.h>
14 #include <linux/pinctrl/pinconf-generic.h>
15 #include <linux/pinctrl/pinconf.h>
16 #include <linux/pinctrl/pinctrl.h>
17 #include <linux/pinctrl/pinmux.h>
18 #include <linux/spinlock.h>
19 
20 #include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
21 
22 #include "../core.h"
23 #include "../pinconf.h"
24 #include "../pinmux.h"
25 
26 #define DRV_NAME	"pinctrl-rzg2l"
27 
28 /*
29  * Use 16 lower bits [15:0] for pin identifier
30  * Use 16 higher bits [31:16] for pin mux function
31  */
32 #define MUX_PIN_ID_MASK		GENMASK(15, 0)
33 #define MUX_FUNC_MASK		GENMASK(31, 16)
34 #define MUX_FUNC_OFFS		16
35 #define MUX_FUNC(pinconf)	(((pinconf) & MUX_FUNC_MASK) >> MUX_FUNC_OFFS)
36 
37 /* PIN capabilities */
38 #define PIN_CFG_IOLH_A			BIT(0)
39 #define PIN_CFG_IOLH_B			BIT(1)
40 #define PIN_CFG_SR			BIT(2)
41 #define PIN_CFG_IEN			BIT(3)
42 #define PIN_CFG_PUPD			BIT(4)
43 #define PIN_CFG_IO_VMC_SD0		BIT(5)
44 #define PIN_CFG_IO_VMC_SD1		BIT(6)
45 #define PIN_CFG_IO_VMC_QSPI		BIT(7)
46 #define PIN_CFG_IO_VMC_ETH0		BIT(8)
47 #define PIN_CFG_IO_VMC_ETH1		BIT(9)
48 #define PIN_CFG_FILONOFF		BIT(10)
49 #define PIN_CFG_FILNUM			BIT(11)
50 #define PIN_CFG_FILCLKSEL		BIT(12)
51 
52 #define RZG2L_MPXED_PIN_FUNCS		(PIN_CFG_IOLH_A | \
53 					 PIN_CFG_SR | \
54 					 PIN_CFG_PUPD | \
55 					 PIN_CFG_FILONOFF | \
56 					 PIN_CFG_FILNUM | \
57 					 PIN_CFG_FILCLKSEL)
58 
59 #define RZG2L_MPXED_ETH_PIN_FUNCS(x)	((x) | \
60 					 PIN_CFG_FILONOFF | \
61 					 PIN_CFG_FILNUM | \
62 					 PIN_CFG_FILCLKSEL)
63 
64 /*
65  * n indicates number of pins in the port, a is the register index
66  * and f is pin configuration capabilities supported.
67  */
68 #define RZG2L_GPIO_PORT_PACK(n, a, f)	(((n) << 28) | ((a) << 20) | (f))
69 #define RZG2L_GPIO_PORT_GET_PINCNT(x)	(((x) & GENMASK(30, 28)) >> 28)
70 #define RZG2L_GPIO_PORT_GET_INDEX(x)	(((x) & GENMASK(26, 20)) >> 20)
71 #define RZG2L_GPIO_PORT_GET_CFGS(x)	((x) & GENMASK(19, 0))
72 
73 /*
74  * BIT(31) indicates dedicated pin, p is the register index while
75  * referencing to SR/IEN/IOLH/FILxx registers, b is the register bits
76  * (b * 8) and f is the pin configuration capabilities supported.
77  */
78 #define RZG2L_SINGLE_PIN		BIT(31)
79 #define RZG2L_SINGLE_PIN_PACK(p, b, f)	(RZG2L_SINGLE_PIN | \
80 					 ((p) << 24) | ((b) << 20) | (f))
81 #define RZG2L_SINGLE_PIN_GET_PORT_OFFSET(x)	(((x) & GENMASK(30, 24)) >> 24)
82 #define RZG2L_SINGLE_PIN_GET_BIT(x)	(((x) & GENMASK(22, 20)) >> 20)
83 #define RZG2L_SINGLE_PIN_GET_CFGS(x)	((x) & GENMASK(19, 0))
84 
85 #define P(n)			(0x0000 + 0x10 + (n))
86 #define PM(n)			(0x0100 + 0x20 + (n) * 2)
87 #define PMC(n)			(0x0200 + 0x10 + (n))
88 #define PFC(n)			(0x0400 + 0x40 + (n) * 4)
89 #define PIN(n)			(0x0800 + 0x10 + (n))
90 #define IOLH(n)			(0x1000 + (n) * 8)
91 #define IEN(n)			(0x1800 + (n) * 8)
92 #define PWPR			(0x3014)
93 #define SD_CH(n)		(0x3000 + (n) * 4)
94 #define QSPI			(0x3008)
95 
96 #define PVDD_1800		1	/* I/O domain voltage <= 1.8V */
97 #define PVDD_3300		0	/* I/O domain voltage >= 3.3V */
98 
99 #define PWPR_B0WI		BIT(7)	/* Bit Write Disable */
100 #define PWPR_PFCWE		BIT(6)	/* PFC Register Write Enable */
101 
102 #define PM_MASK			0x03
103 #define PVDD_MASK		0x01
104 #define PFC_MASK		0x07
105 #define IEN_MASK		0x01
106 #define IOLH_MASK		0x03
107 
108 #define PM_INPUT		0x1
109 #define PM_OUTPUT		0x2
110 
111 #define RZG2L_PIN_ID_TO_PORT(id)	((id) / RZG2L_PINS_PER_PORT)
112 #define RZG2L_PIN_ID_TO_PORT_OFFSET(id)	(RZG2L_PIN_ID_TO_PORT(id) + 0x10)
113 #define RZG2L_PIN_ID_TO_PIN(id)		((id) % RZG2L_PINS_PER_PORT)
114 
115 struct rzg2l_dedicated_configs {
116 	const char *name;
117 	u32 config;
118 };
119 
120 struct rzg2l_pinctrl_data {
121 	const char * const *port_pins;
122 	const u32 *port_pin_configs;
123 	struct rzg2l_dedicated_configs *dedicated_pins;
124 	unsigned int n_port_pins;
125 	unsigned int n_dedicated_pins;
126 };
127 
128 struct rzg2l_pinctrl {
129 	struct pinctrl_dev		*pctl;
130 	struct pinctrl_desc		desc;
131 	struct pinctrl_pin_desc		*pins;
132 
133 	const struct rzg2l_pinctrl_data	*data;
134 	void __iomem			*base;
135 	struct device			*dev;
136 	struct clk			*clk;
137 
138 	struct gpio_chip		gpio_chip;
139 	struct pinctrl_gpio_range	gpio_range;
140 
141 	spinlock_t			lock;
142 };
143 
144 static const unsigned int iolh_groupa_mA[] = { 2, 4, 8, 12 };
145 static const unsigned int iolh_groupb_oi[] = { 100, 66, 50, 33 };
146 
147 static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl,
148 				       u8 port, u8 pin, u8 func)
149 {
150 	unsigned long flags;
151 	u32 reg;
152 
153 	spin_lock_irqsave(&pctrl->lock, flags);
154 
155 	/* Set pin to 'Non-use (Hi-Z input protection)'  */
156 	reg = readw(pctrl->base + PM(port));
157 	reg &= ~(PM_MASK << (pin * 2));
158 	writew(reg, pctrl->base + PM(port));
159 
160 	/* Temporarily switch to GPIO mode with PMC register */
161 	reg = readb(pctrl->base + PMC(port));
162 	writeb(reg & ~BIT(pin), pctrl->base + PMC(port));
163 
164 	/* Set the PWPR register to allow PFC register to write */
165 	writel(0x0, pctrl->base + PWPR);        /* B0WI=0, PFCWE=0 */
166 	writel(PWPR_PFCWE, pctrl->base + PWPR);  /* B0WI=0, PFCWE=1 */
167 
168 	/* Select Pin function mode with PFC register */
169 	reg = readl(pctrl->base + PFC(port));
170 	reg &= ~(PFC_MASK << (pin * 4));
171 	writel(reg | (func << (pin * 4)), pctrl->base + PFC(port));
172 
173 	/* Set the PWPR register to be write-protected */
174 	writel(0x0, pctrl->base + PWPR);        /* B0WI=0, PFCWE=0 */
175 	writel(PWPR_B0WI, pctrl->base + PWPR);  /* B0WI=1, PFCWE=0 */
176 
177 	/* Switch to Peripheral pin function with PMC register */
178 	reg = readb(pctrl->base + PMC(port));
179 	writeb(reg | BIT(pin), pctrl->base + PMC(port));
180 
181 	spin_unlock_irqrestore(&pctrl->lock, flags);
182 };
183 
184 static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev,
185 				 unsigned int func_selector,
186 				 unsigned int group_selector)
187 {
188 	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
189 	struct function_desc *func;
190 	unsigned int i, *psel_val;
191 	struct group_desc *group;
192 	int *pins;
193 
194 	func = pinmux_generic_get_function(pctldev, func_selector);
195 	if (!func)
196 		return -EINVAL;
197 	group = pinctrl_generic_get_group(pctldev, group_selector);
198 	if (!group)
199 		return -EINVAL;
200 
201 	psel_val = func->data;
202 	pins = group->pins;
203 
204 	for (i = 0; i < group->num_pins; i++) {
205 		dev_dbg(pctrl->dev, "port:%u pin: %u PSEL:%u\n",
206 			RZG2L_PIN_ID_TO_PORT(pins[i]), RZG2L_PIN_ID_TO_PIN(pins[i]),
207 			psel_val[i]);
208 		rzg2l_pinctrl_set_pfc_mode(pctrl, RZG2L_PIN_ID_TO_PORT(pins[i]),
209 					   RZG2L_PIN_ID_TO_PIN(pins[i]), psel_val[i]);
210 	}
211 
212 	return 0;
213 };
214 
215 static int rzg2l_map_add_config(struct pinctrl_map *map,
216 				const char *group_or_pin,
217 				enum pinctrl_map_type type,
218 				unsigned long *configs,
219 				unsigned int num_configs)
220 {
221 	unsigned long *cfgs;
222 
223 	cfgs = kmemdup(configs, num_configs * sizeof(*cfgs),
224 		       GFP_KERNEL);
225 	if (!cfgs)
226 		return -ENOMEM;
227 
228 	map->type = type;
229 	map->data.configs.group_or_pin = group_or_pin;
230 	map->data.configs.configs = cfgs;
231 	map->data.configs.num_configs = num_configs;
232 
233 	return 0;
234 }
235 
236 static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev,
237 				   struct device_node *np,
238 				   struct pinctrl_map **map,
239 				   unsigned int *num_maps,
240 				   unsigned int *index)
241 {
242 	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
243 	struct pinctrl_map *maps = *map;
244 	unsigned int nmaps = *num_maps;
245 	unsigned long *configs = NULL;
246 	unsigned int *pins, *psel_val;
247 	unsigned int num_pinmux = 0;
248 	unsigned int idx = *index;
249 	unsigned int num_pins, i;
250 	unsigned int num_configs;
251 	struct property *pinmux;
252 	struct property *prop;
253 	int ret, gsel, fsel;
254 	const char **pin_fn;
255 	const char *pin;
256 
257 	pinmux = of_find_property(np, "pinmux", NULL);
258 	if (pinmux)
259 		num_pinmux = pinmux->length / sizeof(u32);
260 
261 	ret = of_property_count_strings(np, "pins");
262 	if (ret == -EINVAL) {
263 		num_pins = 0;
264 	} else if (ret < 0) {
265 		dev_err(pctrl->dev, "Invalid pins list in DT\n");
266 		return ret;
267 	} else {
268 		num_pins = ret;
269 	}
270 
271 	if (!num_pinmux && !num_pins)
272 		return 0;
273 
274 	if (num_pinmux && num_pins) {
275 		dev_err(pctrl->dev,
276 			"DT node must contain either a pinmux or pins and not both\n");
277 		return -EINVAL;
278 	}
279 
280 	ret = pinconf_generic_parse_dt_config(np, NULL, &configs, &num_configs);
281 	if (ret < 0)
282 		return ret;
283 
284 	if (num_pins && !num_configs) {
285 		dev_err(pctrl->dev, "DT node must contain a config\n");
286 		ret = -ENODEV;
287 		goto done;
288 	}
289 
290 	if (num_pinmux)
291 		nmaps += 1;
292 
293 	if (num_pins)
294 		nmaps += num_pins;
295 
296 	maps = krealloc_array(maps, nmaps, sizeof(*maps), GFP_KERNEL);
297 	if (!maps) {
298 		ret = -ENOMEM;
299 		goto done;
300 	}
301 
302 	*map = maps;
303 	*num_maps = nmaps;
304 	if (num_pins) {
305 		of_property_for_each_string(np, "pins", prop, pin) {
306 			ret = rzg2l_map_add_config(&maps[idx], pin,
307 						   PIN_MAP_TYPE_CONFIGS_PIN,
308 						   configs, num_configs);
309 			if (ret < 0)
310 				goto done;
311 
312 			idx++;
313 		}
314 		ret = 0;
315 		goto done;
316 	}
317 
318 	pins = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*pins), GFP_KERNEL);
319 	psel_val = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*psel_val),
320 				GFP_KERNEL);
321 	pin_fn = devm_kzalloc(pctrl->dev, sizeof(*pin_fn), GFP_KERNEL);
322 	if (!pins || !psel_val || !pin_fn) {
323 		ret = -ENOMEM;
324 		goto done;
325 	}
326 
327 	/* Collect pin locations and mux settings from DT properties */
328 	for (i = 0; i < num_pinmux; ++i) {
329 		u32 value;
330 
331 		ret = of_property_read_u32_index(np, "pinmux", i, &value);
332 		if (ret)
333 			goto done;
334 		pins[i] = value & MUX_PIN_ID_MASK;
335 		psel_val[i] = MUX_FUNC(value);
336 	}
337 
338 	/* Register a single pin group listing all the pins we read from DT */
339 	gsel = pinctrl_generic_add_group(pctldev, np->name, pins, num_pinmux, NULL);
340 	if (gsel < 0) {
341 		ret = gsel;
342 		goto done;
343 	}
344 
345 	/*
346 	 * Register a single group function where the 'data' is an array PSEL
347 	 * register values read from DT.
348 	 */
349 	pin_fn[0] = np->name;
350 	fsel = pinmux_generic_add_function(pctldev, np->name, pin_fn, 1,
351 					   psel_val);
352 	if (fsel < 0) {
353 		ret = fsel;
354 		goto remove_group;
355 	}
356 
357 	maps[idx].type = PIN_MAP_TYPE_MUX_GROUP;
358 	maps[idx].data.mux.group = np->name;
359 	maps[idx].data.mux.function = np->name;
360 	idx++;
361 
362 	dev_dbg(pctrl->dev, "Parsed %pOF with %d pins\n", np, num_pinmux);
363 	ret = 0;
364 	goto done;
365 
366 remove_group:
367 	pinctrl_generic_remove_group(pctldev, gsel);
368 done:
369 	*index = idx;
370 	kfree(configs);
371 	return ret;
372 }
373 
374 static void rzg2l_dt_free_map(struct pinctrl_dev *pctldev,
375 			      struct pinctrl_map *map,
376 			      unsigned int num_maps)
377 {
378 	unsigned int i;
379 
380 	if (!map)
381 		return;
382 
383 	for (i = 0; i < num_maps; ++i) {
384 		if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP ||
385 		    map[i].type == PIN_MAP_TYPE_CONFIGS_PIN)
386 			kfree(map[i].data.configs.configs);
387 	}
388 	kfree(map);
389 }
390 
391 static int rzg2l_dt_node_to_map(struct pinctrl_dev *pctldev,
392 				struct device_node *np,
393 				struct pinctrl_map **map,
394 				unsigned int *num_maps)
395 {
396 	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
397 	struct device_node *child;
398 	unsigned int index;
399 	int ret;
400 
401 	*map = NULL;
402 	*num_maps = 0;
403 	index = 0;
404 
405 	for_each_child_of_node(np, child) {
406 		ret = rzg2l_dt_subnode_to_map(pctldev, child, map,
407 					      num_maps, &index);
408 		if (ret < 0) {
409 			of_node_put(child);
410 			goto done;
411 		}
412 	}
413 
414 	if (*num_maps == 0) {
415 		ret = rzg2l_dt_subnode_to_map(pctldev, np, map,
416 					      num_maps, &index);
417 		if (ret < 0)
418 			goto done;
419 	}
420 
421 	if (*num_maps)
422 		return 0;
423 
424 	dev_err(pctrl->dev, "no mapping found in node %pOF\n", np);
425 	ret = -EINVAL;
426 
427 done:
428 	if (ret < 0)
429 		rzg2l_dt_free_map(pctldev, *map, *num_maps);
430 
431 	return ret;
432 }
433 
434 static int rzg2l_validate_gpio_pin(struct rzg2l_pinctrl *pctrl,
435 				   u32 cfg, u32 port, u8 bit)
436 {
437 	u8 pincount = RZG2L_GPIO_PORT_GET_PINCNT(cfg);
438 	u32 port_index = RZG2L_GPIO_PORT_GET_INDEX(cfg);
439 	u32 data;
440 
441 	if (bit >= pincount || port >= pctrl->data->n_port_pins)
442 		return -EINVAL;
443 
444 	data = pctrl->data->port_pin_configs[port];
445 	if (port_index != RZG2L_GPIO_PORT_GET_INDEX(data))
446 		return -EINVAL;
447 
448 	return 0;
449 }
450 
451 static u32 rzg2l_read_pin_config(struct rzg2l_pinctrl *pctrl, u32 offset,
452 				 u8 bit, u32 mask)
453 {
454 	void __iomem *addr = pctrl->base + offset;
455 
456 	/* handle _L/_H for 32-bit register read/write */
457 	if (bit >= 4) {
458 		bit -= 4;
459 		addr += 4;
460 	}
461 
462 	return (readl(addr) >> (bit * 8)) & mask;
463 }
464 
465 static void rzg2l_rmw_pin_config(struct rzg2l_pinctrl *pctrl, u32 offset,
466 				 u8 bit, u32 mask, u32 val)
467 {
468 	void __iomem *addr = pctrl->base + offset;
469 	unsigned long flags;
470 	u32 reg;
471 
472 	/* handle _L/_H for 32-bit register read/write */
473 	if (bit >= 4) {
474 		bit -= 4;
475 		addr += 4;
476 	}
477 
478 	spin_lock_irqsave(&pctrl->lock, flags);
479 	reg = readl(addr) & ~(mask << (bit * 8));
480 	writel(reg | (val << (bit * 8)), addr);
481 	spin_unlock_irqrestore(&pctrl->lock, flags);
482 }
483 
484 static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
485 				     unsigned int _pin,
486 				     unsigned long *config)
487 {
488 	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
489 	enum pin_config_param param = pinconf_to_config_param(*config);
490 	const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin];
491 	unsigned int *pin_data = pin->drv_data;
492 	unsigned int arg = 0;
493 	unsigned long flags;
494 	void __iomem *addr;
495 	u32 port_offset;
496 	u32 cfg = 0;
497 	u8 bit = 0;
498 
499 	if (!pin_data)
500 		return -EINVAL;
501 
502 	if (*pin_data & RZG2L_SINGLE_PIN) {
503 		port_offset = RZG2L_SINGLE_PIN_GET_PORT_OFFSET(*pin_data);
504 		cfg = RZG2L_SINGLE_PIN_GET_CFGS(*pin_data);
505 		bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data);
506 	} else {
507 		cfg = RZG2L_GPIO_PORT_GET_CFGS(*pin_data);
508 		port_offset = RZG2L_PIN_ID_TO_PORT_OFFSET(_pin);
509 		bit = RZG2L_PIN_ID_TO_PIN(_pin);
510 
511 		if (rzg2l_validate_gpio_pin(pctrl, *pin_data, RZG2L_PIN_ID_TO_PORT(_pin), bit))
512 			return -EINVAL;
513 	}
514 
515 	switch (param) {
516 	case PIN_CONFIG_INPUT_ENABLE:
517 		if (!(cfg & PIN_CFG_IEN))
518 			return -EINVAL;
519 		arg = rzg2l_read_pin_config(pctrl, IEN(port_offset), bit, IEN_MASK);
520 		break;
521 
522 	case PIN_CONFIG_POWER_SOURCE: {
523 		u32 pwr_reg = 0x0;
524 
525 		if (cfg & PIN_CFG_IO_VMC_SD0)
526 			pwr_reg = SD_CH(0);
527 		else if (cfg & PIN_CFG_IO_VMC_SD1)
528 			pwr_reg = SD_CH(1);
529 		else if (cfg & PIN_CFG_IO_VMC_QSPI)
530 			pwr_reg = QSPI;
531 		else
532 			return -EINVAL;
533 
534 		spin_lock_irqsave(&pctrl->lock, flags);
535 		addr = pctrl->base + pwr_reg;
536 		arg = (readl(addr) & PVDD_MASK) ? 1800 : 3300;
537 		spin_unlock_irqrestore(&pctrl->lock, flags);
538 		break;
539 	}
540 
541 	case PIN_CONFIG_DRIVE_STRENGTH: {
542 		unsigned int index;
543 
544 		if (!(cfg & PIN_CFG_IOLH_A))
545 			return -EINVAL;
546 
547 		index = rzg2l_read_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK);
548 		arg = iolh_groupa_mA[index];
549 		break;
550 	}
551 
552 	case PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS: {
553 		unsigned int index;
554 
555 		if (!(cfg & PIN_CFG_IOLH_B))
556 			return -EINVAL;
557 
558 		index = rzg2l_read_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK);
559 		arg = iolh_groupb_oi[index];
560 		break;
561 	}
562 
563 	default:
564 		return -ENOTSUPP;
565 	}
566 
567 	*config = pinconf_to_config_packed(param, arg);
568 
569 	return 0;
570 };
571 
572 static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
573 				     unsigned int _pin,
574 				     unsigned long *_configs,
575 				     unsigned int num_configs)
576 {
577 	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
578 	const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin];
579 	unsigned int *pin_data = pin->drv_data;
580 	enum pin_config_param param;
581 	unsigned long flags;
582 	void __iomem *addr;
583 	u32 port_offset;
584 	unsigned int i;
585 	u32 cfg = 0;
586 	u8 bit = 0;
587 
588 	if (!pin_data)
589 		return -EINVAL;
590 
591 	if (*pin_data & RZG2L_SINGLE_PIN) {
592 		port_offset = RZG2L_SINGLE_PIN_GET_PORT_OFFSET(*pin_data);
593 		cfg = RZG2L_SINGLE_PIN_GET_CFGS(*pin_data);
594 		bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data);
595 	} else {
596 		cfg = RZG2L_GPIO_PORT_GET_CFGS(*pin_data);
597 		port_offset = RZG2L_PIN_ID_TO_PORT_OFFSET(_pin);
598 		bit = RZG2L_PIN_ID_TO_PIN(_pin);
599 
600 		if (rzg2l_validate_gpio_pin(pctrl, *pin_data, RZG2L_PIN_ID_TO_PORT(_pin), bit))
601 			return -EINVAL;
602 	}
603 
604 	for (i = 0; i < num_configs; i++) {
605 		param = pinconf_to_config_param(_configs[i]);
606 		switch (param) {
607 		case PIN_CONFIG_INPUT_ENABLE: {
608 			unsigned int arg =
609 					pinconf_to_config_argument(_configs[i]);
610 
611 			if (!(cfg & PIN_CFG_IEN))
612 				return -EINVAL;
613 
614 			rzg2l_rmw_pin_config(pctrl, IEN(port_offset), bit, IEN_MASK, !!arg);
615 			break;
616 		}
617 
618 		case PIN_CONFIG_POWER_SOURCE: {
619 			unsigned int mV = pinconf_to_config_argument(_configs[i]);
620 			u32 pwr_reg = 0x0;
621 
622 			if (mV != 1800 && mV != 3300)
623 				return -EINVAL;
624 
625 			if (cfg & PIN_CFG_IO_VMC_SD0)
626 				pwr_reg = SD_CH(0);
627 			else if (cfg & PIN_CFG_IO_VMC_SD1)
628 				pwr_reg = SD_CH(1);
629 			else if (cfg & PIN_CFG_IO_VMC_QSPI)
630 				pwr_reg = QSPI;
631 			else
632 				return -EINVAL;
633 
634 			addr = pctrl->base + pwr_reg;
635 			spin_lock_irqsave(&pctrl->lock, flags);
636 			writel((mV == 1800) ? PVDD_1800 : PVDD_3300, addr);
637 			spin_unlock_irqrestore(&pctrl->lock, flags);
638 			break;
639 		}
640 
641 		case PIN_CONFIG_DRIVE_STRENGTH: {
642 			unsigned int arg = pinconf_to_config_argument(_configs[i]);
643 			unsigned int index;
644 
645 			if (!(cfg & PIN_CFG_IOLH_A))
646 				return -EINVAL;
647 
648 			for (index = 0; index < ARRAY_SIZE(iolh_groupa_mA); index++) {
649 				if (arg == iolh_groupa_mA[index])
650 					break;
651 			}
652 			if (index >= ARRAY_SIZE(iolh_groupa_mA))
653 				return -EINVAL;
654 
655 			rzg2l_rmw_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK, index);
656 			break;
657 		}
658 
659 		case PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS: {
660 			unsigned int arg = pinconf_to_config_argument(_configs[i]);
661 			unsigned int index;
662 
663 			if (!(cfg & PIN_CFG_IOLH_B))
664 				return -EINVAL;
665 
666 			for (index = 0; index < ARRAY_SIZE(iolh_groupb_oi); index++) {
667 				if (arg == iolh_groupb_oi[index])
668 					break;
669 			}
670 			if (index >= ARRAY_SIZE(iolh_groupb_oi))
671 				return -EINVAL;
672 
673 			rzg2l_rmw_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK, index);
674 			break;
675 		}
676 
677 		default:
678 			return -EOPNOTSUPP;
679 		}
680 	}
681 
682 	return 0;
683 }
684 
685 static int rzg2l_pinctrl_pinconf_group_set(struct pinctrl_dev *pctldev,
686 					   unsigned int group,
687 					   unsigned long *configs,
688 					   unsigned int num_configs)
689 {
690 	const unsigned int *pins;
691 	unsigned int i, npins;
692 	int ret;
693 
694 	ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins);
695 	if (ret)
696 		return ret;
697 
698 	for (i = 0; i < npins; i++) {
699 		ret = rzg2l_pinctrl_pinconf_set(pctldev, pins[i], configs,
700 						num_configs);
701 		if (ret)
702 			return ret;
703 	}
704 
705 	return 0;
706 };
707 
708 static int rzg2l_pinctrl_pinconf_group_get(struct pinctrl_dev *pctldev,
709 					   unsigned int group,
710 					   unsigned long *config)
711 {
712 	const unsigned int *pins;
713 	unsigned int i, npins, prev_config = 0;
714 	int ret;
715 
716 	ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins);
717 	if (ret)
718 		return ret;
719 
720 	for (i = 0; i < npins; i++) {
721 		ret = rzg2l_pinctrl_pinconf_get(pctldev, pins[i], config);
722 		if (ret)
723 			return ret;
724 
725 		/* Check config matching between to pin  */
726 		if (i && prev_config != *config)
727 			return -EOPNOTSUPP;
728 
729 		prev_config = *config;
730 	}
731 
732 	return 0;
733 };
734 
735 static const struct pinctrl_ops rzg2l_pinctrl_pctlops = {
736 	.get_groups_count = pinctrl_generic_get_group_count,
737 	.get_group_name = pinctrl_generic_get_group_name,
738 	.get_group_pins = pinctrl_generic_get_group_pins,
739 	.dt_node_to_map = rzg2l_dt_node_to_map,
740 	.dt_free_map = rzg2l_dt_free_map,
741 };
742 
743 static const struct pinmux_ops rzg2l_pinctrl_pmxops = {
744 	.get_functions_count = pinmux_generic_get_function_count,
745 	.get_function_name = pinmux_generic_get_function_name,
746 	.get_function_groups = pinmux_generic_get_function_groups,
747 	.set_mux = rzg2l_pinctrl_set_mux,
748 	.strict = true,
749 };
750 
751 static const struct pinconf_ops rzg2l_pinctrl_confops = {
752 	.is_generic = true,
753 	.pin_config_get = rzg2l_pinctrl_pinconf_get,
754 	.pin_config_set = rzg2l_pinctrl_pinconf_set,
755 	.pin_config_group_set = rzg2l_pinctrl_pinconf_group_set,
756 	.pin_config_group_get = rzg2l_pinctrl_pinconf_group_get,
757 	.pin_config_config_dbg_show = pinconf_generic_dump_config,
758 };
759 
760 static int rzg2l_gpio_request(struct gpio_chip *chip, unsigned int offset)
761 {
762 	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
763 	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
764 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
765 	unsigned long flags;
766 	u8 reg8;
767 	int ret;
768 
769 	ret = pinctrl_gpio_request(chip->base + offset);
770 	if (ret)
771 		return ret;
772 
773 	spin_lock_irqsave(&pctrl->lock, flags);
774 
775 	/* Select GPIO mode in PMC Register */
776 	reg8 = readb(pctrl->base + PMC(port));
777 	reg8 &= ~BIT(bit);
778 	writeb(reg8, pctrl->base + PMC(port));
779 
780 	spin_unlock_irqrestore(&pctrl->lock, flags);
781 
782 	return 0;
783 }
784 
785 static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 port,
786 				     u8 bit, bool output)
787 {
788 	unsigned long flags;
789 	u16 reg16;
790 
791 	spin_lock_irqsave(&pctrl->lock, flags);
792 
793 	reg16 = readw(pctrl->base + PM(port));
794 	reg16 &= ~(PM_MASK << (bit * 2));
795 
796 	reg16 |= (output ? PM_OUTPUT : PM_INPUT) << (bit * 2);
797 	writew(reg16, pctrl->base + PM(port));
798 
799 	spin_unlock_irqrestore(&pctrl->lock, flags);
800 }
801 
802 static int rzg2l_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
803 {
804 	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
805 	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
806 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
807 
808 	if (!(readb(pctrl->base + PMC(port)) & BIT(bit))) {
809 		u16 reg16;
810 
811 		reg16 = readw(pctrl->base + PM(port));
812 		reg16 = (reg16 >> (bit * 2)) & PM_MASK;
813 		if (reg16 == PM_OUTPUT)
814 			return GPIO_LINE_DIRECTION_OUT;
815 	}
816 
817 	return GPIO_LINE_DIRECTION_IN;
818 }
819 
820 static int rzg2l_gpio_direction_input(struct gpio_chip *chip,
821 				      unsigned int offset)
822 {
823 	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
824 	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
825 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
826 
827 	rzg2l_gpio_set_direction(pctrl, port, bit, false);
828 
829 	return 0;
830 }
831 
832 static void rzg2l_gpio_set(struct gpio_chip *chip, unsigned int offset,
833 			   int value)
834 {
835 	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
836 	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
837 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
838 	unsigned long flags;
839 	u8 reg8;
840 
841 	spin_lock_irqsave(&pctrl->lock, flags);
842 
843 	reg8 = readb(pctrl->base + P(port));
844 
845 	if (value)
846 		writeb(reg8 | BIT(bit), pctrl->base + P(port));
847 	else
848 		writeb(reg8 & ~BIT(bit), pctrl->base + P(port));
849 
850 	spin_unlock_irqrestore(&pctrl->lock, flags);
851 }
852 
853 static int rzg2l_gpio_direction_output(struct gpio_chip *chip,
854 				       unsigned int offset, int value)
855 {
856 	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
857 	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
858 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
859 
860 	rzg2l_gpio_set(chip, offset, value);
861 	rzg2l_gpio_set_direction(pctrl, port, bit, true);
862 
863 	return 0;
864 }
865 
866 static int rzg2l_gpio_get(struct gpio_chip *chip, unsigned int offset)
867 {
868 	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
869 	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
870 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
871 	u16 reg16;
872 
873 	reg16 = readw(pctrl->base + PM(port));
874 	reg16 = (reg16 >> (bit * 2)) & PM_MASK;
875 
876 	if (reg16 == PM_INPUT)
877 		return !!(readb(pctrl->base + PIN(port)) & BIT(bit));
878 	else if (reg16 == PM_OUTPUT)
879 		return !!(readb(pctrl->base + P(port)) & BIT(bit));
880 	else
881 		return -EINVAL;
882 }
883 
884 static void rzg2l_gpio_free(struct gpio_chip *chip, unsigned int offset)
885 {
886 	pinctrl_gpio_free(chip->base + offset);
887 
888 	/*
889 	 * Set the GPIO as an input to ensure that the next GPIO request won't
890 	 * drive the GPIO pin as an output.
891 	 */
892 	rzg2l_gpio_direction_input(chip, offset);
893 }
894 
895 static const char * const rzg2l_gpio_names[] = {
896 	"P0_0", "P0_1", "P0_2", "P0_3", "P0_4", "P0_5", "P0_6", "P0_7",
897 	"P1_0", "P1_1", "P1_2", "P1_3", "P1_4", "P1_5", "P1_6", "P1_7",
898 	"P2_0", "P2_1", "P2_2", "P2_3", "P2_4", "P2_5", "P2_6", "P2_7",
899 	"P3_0", "P3_1", "P3_2", "P3_3", "P3_4", "P3_5", "P3_6", "P3_7",
900 	"P4_0", "P4_1", "P4_2", "P4_3", "P4_4", "P4_5", "P4_6", "P4_7",
901 	"P5_0", "P5_1", "P5_2", "P5_3", "P5_4", "P5_5", "P5_6", "P5_7",
902 	"P6_0", "P6_1", "P6_2", "P6_3", "P6_4", "P6_5", "P6_6", "P6_7",
903 	"P7_0", "P7_1", "P7_2", "P7_3", "P7_4", "P7_5", "P7_6", "P7_7",
904 	"P8_0", "P8_1", "P8_2", "P8_3", "P8_4", "P8_5", "P8_6", "P8_7",
905 	"P9_0", "P9_1", "P9_2", "P9_3", "P9_4", "P9_5", "P9_6", "P9_7",
906 	"P10_0", "P10_1", "P10_2", "P10_3", "P10_4", "P10_5", "P10_6", "P10_7",
907 	"P11_0", "P11_1", "P11_2", "P11_3", "P11_4", "P11_5", "P11_6", "P11_7",
908 	"P12_0", "P12_1", "P12_2", "P12_3", "P12_4", "P12_5", "P12_6", "P12_7",
909 	"P13_0", "P13_1", "P13_2", "P13_3", "P13_4", "P13_5", "P13_6", "P13_7",
910 	"P14_0", "P14_1", "P14_2", "P14_3", "P14_4", "P14_5", "P14_6", "P14_7",
911 	"P15_0", "P15_1", "P15_2", "P15_3", "P15_4", "P15_5", "P15_6", "P15_7",
912 	"P16_0", "P16_1", "P16_2", "P16_3", "P16_4", "P16_5", "P16_6", "P16_7",
913 	"P17_0", "P17_1", "P17_2", "P17_3", "P17_4", "P17_5", "P17_6", "P17_7",
914 	"P18_0", "P18_1", "P18_2", "P18_3", "P18_4", "P18_5", "P18_6", "P18_7",
915 	"P19_0", "P19_1", "P19_2", "P19_3", "P19_4", "P19_5", "P19_6", "P19_7",
916 	"P20_0", "P20_1", "P20_2", "P20_3", "P20_4", "P20_5", "P20_6", "P20_7",
917 	"P21_0", "P21_1", "P21_2", "P21_3", "P21_4", "P21_5", "P21_6", "P21_7",
918 	"P22_0", "P22_1", "P22_2", "P22_3", "P22_4", "P22_5", "P22_6", "P22_7",
919 	"P23_0", "P23_1", "P23_2", "P23_3", "P23_4", "P23_5", "P23_6", "P23_7",
920 	"P24_0", "P24_1", "P24_2", "P24_3", "P24_4", "P24_5", "P24_6", "P24_7",
921 	"P25_0", "P25_1", "P25_2", "P25_3", "P25_4", "P25_5", "P25_6", "P25_7",
922 	"P26_0", "P26_1", "P26_2", "P26_3", "P26_4", "P26_5", "P26_6", "P26_7",
923 	"P27_0", "P27_1", "P27_2", "P27_3", "P27_4", "P27_5", "P27_6", "P27_7",
924 	"P28_0", "P28_1", "P28_2", "P28_3", "P28_4", "P28_5", "P28_6", "P28_7",
925 	"P29_0", "P29_1", "P29_2", "P29_3", "P29_4", "P29_5", "P29_6", "P29_7",
926 	"P30_0", "P30_1", "P30_2", "P30_3", "P30_4", "P30_5", "P30_6", "P30_7",
927 	"P31_0", "P31_1", "P31_2", "P31_3", "P31_4", "P31_5", "P31_6", "P31_7",
928 	"P32_0", "P32_1", "P32_2", "P32_3", "P32_4", "P32_5", "P32_6", "P32_7",
929 	"P33_0", "P33_1", "P33_2", "P33_3", "P33_4", "P33_5", "P33_6", "P33_7",
930 	"P34_0", "P34_1", "P34_2", "P34_3", "P34_4", "P34_5", "P34_6", "P34_7",
931 	"P35_0", "P35_1", "P35_2", "P35_3", "P35_4", "P35_5", "P35_6", "P35_7",
932 	"P36_0", "P36_1", "P36_2", "P36_3", "P36_4", "P36_5", "P36_6", "P36_7",
933 	"P37_0", "P37_1", "P37_2", "P37_3", "P37_4", "P37_5", "P37_6", "P37_7",
934 	"P38_0", "P38_1", "P38_2", "P38_3", "P38_4", "P38_5", "P38_6", "P38_7",
935 	"P39_0", "P39_1", "P39_2", "P39_3", "P39_4", "P39_5", "P39_6", "P39_7",
936 	"P40_0", "P40_1", "P40_2", "P40_3", "P40_4", "P40_5", "P40_6", "P40_7",
937 	"P41_0", "P41_1", "P41_2", "P41_3", "P41_4", "P41_5", "P41_6", "P41_7",
938 	"P42_0", "P42_1", "P42_2", "P42_3", "P42_4", "P42_5", "P42_6", "P42_7",
939 	"P43_0", "P43_1", "P43_2", "P43_3", "P43_4", "P43_5", "P43_6", "P43_7",
940 	"P44_0", "P44_1", "P44_2", "P44_3", "P44_4", "P44_5", "P44_6", "P44_7",
941 	"P45_0", "P45_1", "P45_2", "P45_3", "P45_4", "P45_5", "P45_6", "P45_7",
942 	"P46_0", "P46_1", "P46_2", "P46_3", "P46_4", "P46_5", "P46_6", "P46_7",
943 	"P47_0", "P47_1", "P47_2", "P47_3", "P47_4", "P47_5", "P47_6", "P47_7",
944 	"P48_0", "P48_1", "P48_2", "P48_3", "P48_4", "P48_5", "P48_6", "P48_7",
945 };
946 
947 static const u32 rzg2l_gpio_configs[] = {
948 	RZG2L_GPIO_PORT_PACK(2, 0x10, RZG2L_MPXED_PIN_FUNCS),
949 	RZG2L_GPIO_PORT_PACK(2, 0x11, RZG2L_MPXED_PIN_FUNCS),
950 	RZG2L_GPIO_PORT_PACK(2, 0x12, RZG2L_MPXED_PIN_FUNCS),
951 	RZG2L_GPIO_PORT_PACK(2, 0x13, RZG2L_MPXED_PIN_FUNCS),
952 	RZG2L_GPIO_PORT_PACK(2, 0x14, RZG2L_MPXED_PIN_FUNCS),
953 	RZG2L_GPIO_PORT_PACK(3, 0x15, RZG2L_MPXED_PIN_FUNCS),
954 	RZG2L_GPIO_PORT_PACK(2, 0x16, RZG2L_MPXED_PIN_FUNCS),
955 	RZG2L_GPIO_PORT_PACK(3, 0x17, RZG2L_MPXED_PIN_FUNCS),
956 	RZG2L_GPIO_PORT_PACK(3, 0x18, RZG2L_MPXED_PIN_FUNCS),
957 	RZG2L_GPIO_PORT_PACK(2, 0x19, RZG2L_MPXED_PIN_FUNCS),
958 	RZG2L_GPIO_PORT_PACK(2, 0x1a, RZG2L_MPXED_PIN_FUNCS),
959 	RZG2L_GPIO_PORT_PACK(2, 0x1b, RZG2L_MPXED_PIN_FUNCS),
960 	RZG2L_GPIO_PORT_PACK(2, 0x1c, RZG2L_MPXED_PIN_FUNCS),
961 	RZG2L_GPIO_PORT_PACK(3, 0x1d, RZG2L_MPXED_PIN_FUNCS),
962 	RZG2L_GPIO_PORT_PACK(2, 0x1e, RZG2L_MPXED_PIN_FUNCS),
963 	RZG2L_GPIO_PORT_PACK(2, 0x1f, RZG2L_MPXED_PIN_FUNCS),
964 	RZG2L_GPIO_PORT_PACK(2, 0x20, RZG2L_MPXED_PIN_FUNCS),
965 	RZG2L_GPIO_PORT_PACK(3, 0x21, RZG2L_MPXED_PIN_FUNCS),
966 	RZG2L_GPIO_PORT_PACK(2, 0x22, RZG2L_MPXED_PIN_FUNCS),
967 	RZG2L_GPIO_PORT_PACK(2, 0x23, RZG2L_MPXED_PIN_FUNCS),
968 	RZG2L_GPIO_PORT_PACK(3, 0x24, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
969 	RZG2L_GPIO_PORT_PACK(2, 0x25, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
970 	RZG2L_GPIO_PORT_PACK(2, 0x26, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
971 	RZG2L_GPIO_PORT_PACK(2, 0x27, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
972 	RZG2L_GPIO_PORT_PACK(2, 0x28, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
973 	RZG2L_GPIO_PORT_PACK(2, 0x29, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
974 	RZG2L_GPIO_PORT_PACK(2, 0x2a, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
975 	RZG2L_GPIO_PORT_PACK(2, 0x2b, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
976 	RZG2L_GPIO_PORT_PACK(2, 0x2c, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)),
977 	RZG2L_GPIO_PORT_PACK(2, 0x2d, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
978 	RZG2L_GPIO_PORT_PACK(2, 0x2e, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
979 	RZG2L_GPIO_PORT_PACK(2, 0x2f, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
980 	RZG2L_GPIO_PORT_PACK(2, 0x30, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
981 	RZG2L_GPIO_PORT_PACK(2, 0x31, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
982 	RZG2L_GPIO_PORT_PACK(2, 0x32, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
983 	RZG2L_GPIO_PORT_PACK(2, 0x33, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
984 	RZG2L_GPIO_PORT_PACK(2, 0x34, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
985 	RZG2L_GPIO_PORT_PACK(3, 0x35, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)),
986 	RZG2L_GPIO_PORT_PACK(2, 0x36, RZG2L_MPXED_PIN_FUNCS),
987 	RZG2L_GPIO_PORT_PACK(3, 0x37, RZG2L_MPXED_PIN_FUNCS),
988 	RZG2L_GPIO_PORT_PACK(3, 0x38, RZG2L_MPXED_PIN_FUNCS),
989 	RZG2L_GPIO_PORT_PACK(2, 0x39, RZG2L_MPXED_PIN_FUNCS),
990 	RZG2L_GPIO_PORT_PACK(5, 0x3a, RZG2L_MPXED_PIN_FUNCS),
991 	RZG2L_GPIO_PORT_PACK(4, 0x3b, RZG2L_MPXED_PIN_FUNCS),
992 	RZG2L_GPIO_PORT_PACK(4, 0x3c, RZG2L_MPXED_PIN_FUNCS),
993 	RZG2L_GPIO_PORT_PACK(4, 0x3d, RZG2L_MPXED_PIN_FUNCS),
994 	RZG2L_GPIO_PORT_PACK(4, 0x3e, RZG2L_MPXED_PIN_FUNCS),
995 	RZG2L_GPIO_PORT_PACK(4, 0x3f, RZG2L_MPXED_PIN_FUNCS),
996 	RZG2L_GPIO_PORT_PACK(5, 0x40, RZG2L_MPXED_PIN_FUNCS),
997 };
998 
999 static  struct rzg2l_dedicated_configs rzg2l_dedicated_pins[] = {
1000 	{ "NMI", RZG2L_SINGLE_PIN_PACK(0x1, 0,
1001 	 (PIN_CFG_FILONOFF | PIN_CFG_FILNUM | PIN_CFG_FILCLKSEL)) },
1002 	{ "TMS/SWDIO", RZG2L_SINGLE_PIN_PACK(0x2, 0,
1003 	 (PIN_CFG_SR | PIN_CFG_IOLH_A | PIN_CFG_IEN)) },
1004 	{ "TDO", RZG2L_SINGLE_PIN_PACK(0x3, 0,
1005 	 (PIN_CFG_IOLH_A | PIN_CFG_SR | PIN_CFG_IEN)) },
1006 	{ "AUDIO_CLK1", RZG2L_SINGLE_PIN_PACK(0x4, 0, PIN_CFG_IEN) },
1007 	{ "AUDIO_CLK2", RZG2L_SINGLE_PIN_PACK(0x4, 1, PIN_CFG_IEN) },
1008 	{ "SD0_CLK", RZG2L_SINGLE_PIN_PACK(0x6, 0,
1009 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_SD0)) },
1010 	{ "SD0_CMD", RZG2L_SINGLE_PIN_PACK(0x6, 1,
1011 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1012 	{ "SD0_RST#", RZG2L_SINGLE_PIN_PACK(0x6, 2,
1013 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_SD0)) },
1014 	{ "SD0_DATA0", RZG2L_SINGLE_PIN_PACK(0x7, 0,
1015 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1016 	{ "SD0_DATA1", RZG2L_SINGLE_PIN_PACK(0x7, 1,
1017 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1018 	{ "SD0_DATA2", RZG2L_SINGLE_PIN_PACK(0x7, 2,
1019 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1020 	{ "SD0_DATA3", RZG2L_SINGLE_PIN_PACK(0x7, 3,
1021 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1022 	{ "SD0_DATA4", RZG2L_SINGLE_PIN_PACK(0x7, 4,
1023 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1024 	{ "SD0_DATA5", RZG2L_SINGLE_PIN_PACK(0x7, 5,
1025 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1026 	{ "SD0_DATA6", RZG2L_SINGLE_PIN_PACK(0x7, 6,
1027 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1028 	{ "SD0_DATA7", RZG2L_SINGLE_PIN_PACK(0x7, 7,
1029 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) },
1030 	{ "SD1_CLK", RZG2L_SINGLE_PIN_PACK(0x8, 0,
1031 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_SD1)) },
1032 	{ "SD1_CMD", RZG2L_SINGLE_PIN_PACK(0x8, 1,
1033 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) },
1034 	{ "SD1_DATA0", RZG2L_SINGLE_PIN_PACK(0x9, 0,
1035 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) },
1036 	{ "SD1_DATA1", RZG2L_SINGLE_PIN_PACK(0x9, 1,
1037 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) },
1038 	{ "SD1_DATA2", RZG2L_SINGLE_PIN_PACK(0x9, 2,
1039 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) },
1040 	{ "SD1_DATA3", RZG2L_SINGLE_PIN_PACK(0x9, 3,
1041 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) },
1042 	{ "QSPI0_SPCLK", RZG2L_SINGLE_PIN_PACK(0xa, 0,
1043 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1044 	{ "QSPI0_IO0", RZG2L_SINGLE_PIN_PACK(0xa, 1,
1045 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1046 	{ "QSPI0_IO1", RZG2L_SINGLE_PIN_PACK(0xa, 2,
1047 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1048 	{ "QSPI0_IO2", RZG2L_SINGLE_PIN_PACK(0xa, 3,
1049 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1050 	{ "QSPI0_IO3", RZG2L_SINGLE_PIN_PACK(0xa, 4,
1051 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1052 	{ "QSPI0_SSL", RZG2L_SINGLE_PIN_PACK(0xa, 5,
1053 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1054 	{ "QSPI1_SPCLK", RZG2L_SINGLE_PIN_PACK(0xb, 0,
1055 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1056 	{ "QSPI1_IO0", RZG2L_SINGLE_PIN_PACK(0xb, 1,
1057 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1058 	{ "QSPI1_IO1", RZG2L_SINGLE_PIN_PACK(0xb, 2,
1059 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1060 	{ "QSPI1_IO2", RZG2L_SINGLE_PIN_PACK(0xb, 3,
1061 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1062 	{ "QSPI1_IO3", RZG2L_SINGLE_PIN_PACK(0xb, 4,
1063 	 (PIN_CFG_IOLH_B | PIN_CFG_SR  | PIN_CFG_IO_VMC_QSPI)) },
1064 	{ "QSPI1_SSL", RZG2L_SINGLE_PIN_PACK(0xb, 5,
1065 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1066 	{ "QSPI_RESET#", RZG2L_SINGLE_PIN_PACK(0xc, 0,
1067 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1068 	{ "QSPI_WP#", RZG2L_SINGLE_PIN_PACK(0xc, 1,
1069 	 (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1070 	{ "QSPI_INT#", RZG2L_SINGLE_PIN_PACK(0xc, 2, (PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) },
1071 	{ "WDTOVF_PERROUT#", RZG2L_SINGLE_PIN_PACK(0xd, 0, (PIN_CFG_IOLH_A | PIN_CFG_SR)) },
1072 	{ "RIIC0_SDA", RZG2L_SINGLE_PIN_PACK(0xe, 0, PIN_CFG_IEN) },
1073 	{ "RIIC0_SCL", RZG2L_SINGLE_PIN_PACK(0xe, 1, PIN_CFG_IEN) },
1074 	{ "RIIC1_SDA", RZG2L_SINGLE_PIN_PACK(0xe, 2, PIN_CFG_IEN) },
1075 	{ "RIIC1_SCL", RZG2L_SINGLE_PIN_PACK(0xe, 3, PIN_CFG_IEN) },
1076 };
1077 
1078 static int rzg2l_gpio_register(struct rzg2l_pinctrl *pctrl)
1079 {
1080 	struct device_node *np = pctrl->dev->of_node;
1081 	struct gpio_chip *chip = &pctrl->gpio_chip;
1082 	const char *name = dev_name(pctrl->dev);
1083 	struct of_phandle_args of_args;
1084 	int ret;
1085 
1086 	ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &of_args);
1087 	if (ret) {
1088 		dev_err(pctrl->dev, "Unable to parse gpio-ranges\n");
1089 		return ret;
1090 	}
1091 
1092 	if (of_args.args[0] != 0 || of_args.args[1] != 0 ||
1093 	    of_args.args[2] != ARRAY_SIZE(rzg2l_gpio_names)) {
1094 		dev_err(pctrl->dev, "gpio-ranges does not match selected SOC\n");
1095 		return -EINVAL;
1096 	}
1097 
1098 	chip->names = rzg2l_gpio_names;
1099 	chip->request = rzg2l_gpio_request;
1100 	chip->free = rzg2l_gpio_free;
1101 	chip->get_direction = rzg2l_gpio_get_direction;
1102 	chip->direction_input = rzg2l_gpio_direction_input;
1103 	chip->direction_output = rzg2l_gpio_direction_output;
1104 	chip->get = rzg2l_gpio_get;
1105 	chip->set = rzg2l_gpio_set;
1106 	chip->label = name;
1107 	chip->parent = pctrl->dev;
1108 	chip->owner = THIS_MODULE;
1109 	chip->base = -1;
1110 	chip->ngpio = of_args.args[2];
1111 
1112 	pctrl->gpio_range.id = 0;
1113 	pctrl->gpio_range.pin_base = 0;
1114 	pctrl->gpio_range.base = 0;
1115 	pctrl->gpio_range.npins = chip->ngpio;
1116 	pctrl->gpio_range.name = chip->label;
1117 	pctrl->gpio_range.gc = chip;
1118 	ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl);
1119 	if (ret) {
1120 		dev_err(pctrl->dev, "failed to add GPIO controller\n");
1121 		return ret;
1122 	}
1123 
1124 	dev_dbg(pctrl->dev, "Registered gpio controller\n");
1125 
1126 	return 0;
1127 }
1128 
1129 static int rzg2l_pinctrl_register(struct rzg2l_pinctrl *pctrl)
1130 {
1131 	struct pinctrl_pin_desc *pins;
1132 	unsigned int i, j;
1133 	u32 *pin_data;
1134 	int ret;
1135 
1136 	pctrl->desc.name = DRV_NAME;
1137 	pctrl->desc.npins = pctrl->data->n_port_pins + pctrl->data->n_dedicated_pins;
1138 	pctrl->desc.pctlops = &rzg2l_pinctrl_pctlops;
1139 	pctrl->desc.pmxops = &rzg2l_pinctrl_pmxops;
1140 	pctrl->desc.confops = &rzg2l_pinctrl_confops;
1141 	pctrl->desc.owner = THIS_MODULE;
1142 
1143 	pins = devm_kcalloc(pctrl->dev, pctrl->desc.npins, sizeof(*pins), GFP_KERNEL);
1144 	if (!pins)
1145 		return -ENOMEM;
1146 
1147 	pin_data = devm_kcalloc(pctrl->dev, pctrl->desc.npins,
1148 				sizeof(*pin_data), GFP_KERNEL);
1149 	if (!pin_data)
1150 		return -ENOMEM;
1151 
1152 	pctrl->pins = pins;
1153 	pctrl->desc.pins = pins;
1154 
1155 	for (i = 0, j = 0; i < pctrl->data->n_port_pins; i++) {
1156 		pins[i].number = i;
1157 		pins[i].name = pctrl->data->port_pins[i];
1158 		if (i && !(i % RZG2L_PINS_PER_PORT))
1159 			j++;
1160 		pin_data[i] = pctrl->data->port_pin_configs[j];
1161 		pins[i].drv_data = &pin_data[i];
1162 	}
1163 
1164 	for (i = 0; i < pctrl->data->n_dedicated_pins; i++) {
1165 		unsigned int index = pctrl->data->n_port_pins + i;
1166 
1167 		pins[index].number = index;
1168 		pins[index].name = pctrl->data->dedicated_pins[i].name;
1169 		pin_data[index] = pctrl->data->dedicated_pins[i].config;
1170 		pins[index].drv_data = &pin_data[index];
1171 	}
1172 
1173 	ret = devm_pinctrl_register_and_init(pctrl->dev, &pctrl->desc, pctrl,
1174 					     &pctrl->pctl);
1175 	if (ret) {
1176 		dev_err(pctrl->dev, "pinctrl registration failed\n");
1177 		return ret;
1178 	}
1179 
1180 	ret = pinctrl_enable(pctrl->pctl);
1181 	if (ret) {
1182 		dev_err(pctrl->dev, "pinctrl enable failed\n");
1183 		return ret;
1184 	}
1185 
1186 	ret = rzg2l_gpio_register(pctrl);
1187 	if (ret) {
1188 		dev_err(pctrl->dev, "failed to add GPIO chip: %i\n", ret);
1189 		return ret;
1190 	}
1191 
1192 	return 0;
1193 }
1194 
1195 static void rzg2l_pinctrl_clk_disable(void *data)
1196 {
1197 	clk_disable_unprepare(data);
1198 }
1199 
1200 static int rzg2l_pinctrl_probe(struct platform_device *pdev)
1201 {
1202 	struct rzg2l_pinctrl *pctrl;
1203 	int ret;
1204 
1205 	pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
1206 	if (!pctrl)
1207 		return -ENOMEM;
1208 
1209 	pctrl->dev = &pdev->dev;
1210 
1211 	pctrl->data = of_device_get_match_data(&pdev->dev);
1212 	if (!pctrl->data)
1213 		return -EINVAL;
1214 
1215 	pctrl->base = devm_platform_ioremap_resource(pdev, 0);
1216 	if (IS_ERR(pctrl->base))
1217 		return PTR_ERR(pctrl->base);
1218 
1219 	pctrl->clk = devm_clk_get(pctrl->dev, NULL);
1220 	if (IS_ERR(pctrl->clk)) {
1221 		ret = PTR_ERR(pctrl->clk);
1222 		dev_err(pctrl->dev, "failed to get GPIO clk : %i\n", ret);
1223 		return ret;
1224 	}
1225 
1226 	spin_lock_init(&pctrl->lock);
1227 
1228 	platform_set_drvdata(pdev, pctrl);
1229 
1230 	ret = clk_prepare_enable(pctrl->clk);
1231 	if (ret) {
1232 		dev_err(pctrl->dev, "failed to enable GPIO clk: %i\n", ret);
1233 		return ret;
1234 	}
1235 
1236 	ret = devm_add_action_or_reset(&pdev->dev, rzg2l_pinctrl_clk_disable,
1237 				       pctrl->clk);
1238 	if (ret) {
1239 		dev_err(pctrl->dev,
1240 			"failed to register GPIO clk disable action, %i\n",
1241 			ret);
1242 		return ret;
1243 	}
1244 
1245 	ret = rzg2l_pinctrl_register(pctrl);
1246 	if (ret)
1247 		return ret;
1248 
1249 	dev_info(pctrl->dev, "%s support registered\n", DRV_NAME);
1250 	return 0;
1251 }
1252 
1253 static struct rzg2l_pinctrl_data r9a07g044_data = {
1254 	.port_pins = rzg2l_gpio_names,
1255 	.port_pin_configs = rzg2l_gpio_configs,
1256 	.dedicated_pins = rzg2l_dedicated_pins,
1257 	.n_port_pins = ARRAY_SIZE(rzg2l_gpio_names),
1258 	.n_dedicated_pins = ARRAY_SIZE(rzg2l_dedicated_pins),
1259 };
1260 
1261 static const struct of_device_id rzg2l_pinctrl_of_table[] = {
1262 	{
1263 		.compatible = "renesas,r9a07g044-pinctrl",
1264 		.data = &r9a07g044_data,
1265 	},
1266 	{ /* sentinel */ }
1267 };
1268 
1269 static struct platform_driver rzg2l_pinctrl_driver = {
1270 	.driver = {
1271 		.name = DRV_NAME,
1272 		.of_match_table = of_match_ptr(rzg2l_pinctrl_of_table),
1273 	},
1274 	.probe = rzg2l_pinctrl_probe,
1275 };
1276 
1277 static int __init rzg2l_pinctrl_init(void)
1278 {
1279 	return platform_driver_register(&rzg2l_pinctrl_driver);
1280 }
1281 core_initcall(rzg2l_pinctrl_init);
1282 
1283 MODULE_AUTHOR("Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>");
1284 MODULE_DESCRIPTION("Pin and gpio controller driver for RZ/G2L family");
1285 MODULE_LICENSE("GPL v2");
1286