xref: /openbmc/u-boot/drivers/pinctrl/renesas/pfc.c (revision 7547ad4ca00158608a5ff4028aa5b7c2927a96d1)
1910df4d0SMarek Vasut /*
2910df4d0SMarek Vasut  * Pin Control driver for SuperH Pin Function Controller.
3910df4d0SMarek Vasut  *
4910df4d0SMarek Vasut  * Authors: Magnus Damm, Paul Mundt, Laurent Pinchart
5910df4d0SMarek Vasut  *
6910df4d0SMarek Vasut  * Copyright (C) 2008 Magnus Damm
7910df4d0SMarek Vasut  * Copyright (C) 2009 - 2012 Paul Mundt
8910df4d0SMarek Vasut  * Copyright (C) 2017 Marek Vasut
9910df4d0SMarek Vasut  *
10910df4d0SMarek Vasut  * SPDX-License-Identifier:	GPL-2.0
11910df4d0SMarek Vasut  */
12910df4d0SMarek Vasut 
13910df4d0SMarek Vasut #define DRV_NAME "sh-pfc"
14910df4d0SMarek Vasut 
15910df4d0SMarek Vasut #include <common.h>
16910df4d0SMarek Vasut #include <dm.h>
17910df4d0SMarek Vasut #include <errno.h>
18910df4d0SMarek Vasut #include <dm/pinctrl.h>
19910df4d0SMarek Vasut #include <linux/io.h>
20910df4d0SMarek Vasut #include <linux/sizes.h>
21910df4d0SMarek Vasut 
22910df4d0SMarek Vasut #include "sh_pfc.h"
23910df4d0SMarek Vasut 
24910df4d0SMarek Vasut DECLARE_GLOBAL_DATA_PTR;
25910df4d0SMarek Vasut 
26910df4d0SMarek Vasut enum sh_pfc_model {
27*7547ad4cSMarek Vasut 	SH_PFC_R8A7790 = 0,
28*7547ad4cSMarek Vasut 	SH_PFC_R8A7795,
29910df4d0SMarek Vasut 	SH_PFC_R8A7796,
30c106bb53SMarek Vasut 	SH_PFC_R8A77970,
31a59e6976SMarek Vasut 	SH_PFC_R8A77995,
32910df4d0SMarek Vasut };
33910df4d0SMarek Vasut 
34910df4d0SMarek Vasut struct sh_pfc_pin_config {
35910df4d0SMarek Vasut 	u32 type;
36910df4d0SMarek Vasut };
37910df4d0SMarek Vasut 
38910df4d0SMarek Vasut struct sh_pfc_pinctrl {
39910df4d0SMarek Vasut 	struct sh_pfc *pfc;
40910df4d0SMarek Vasut 
41910df4d0SMarek Vasut 	struct sh_pfc_pin_config *configs;
42910df4d0SMarek Vasut 
43910df4d0SMarek Vasut 	const char *func_prop_name;
44910df4d0SMarek Vasut 	const char *groups_prop_name;
45910df4d0SMarek Vasut 	const char *pins_prop_name;
46910df4d0SMarek Vasut };
47910df4d0SMarek Vasut 
48910df4d0SMarek Vasut struct sh_pfc_pin_range {
49910df4d0SMarek Vasut 	u16 start;
50910df4d0SMarek Vasut 	u16 end;
51910df4d0SMarek Vasut };
52910df4d0SMarek Vasut 
53910df4d0SMarek Vasut struct sh_pfc_pinctrl_priv {
54910df4d0SMarek Vasut 	struct sh_pfc			pfc;
55910df4d0SMarek Vasut 	struct sh_pfc_pinctrl		pmx;
56910df4d0SMarek Vasut };
57910df4d0SMarek Vasut 
58910df4d0SMarek Vasut int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin)
59910df4d0SMarek Vasut {
60910df4d0SMarek Vasut 	unsigned int offset;
61910df4d0SMarek Vasut 	unsigned int i;
62910df4d0SMarek Vasut 
63910df4d0SMarek Vasut 	for (i = 0, offset = 0; i < pfc->nr_ranges; ++i) {
64910df4d0SMarek Vasut 		const struct sh_pfc_pin_range *range = &pfc->ranges[i];
65910df4d0SMarek Vasut 
66910df4d0SMarek Vasut 		if (pin <= range->end)
67910df4d0SMarek Vasut 			return pin >= range->start
68910df4d0SMarek Vasut 			     ? offset + pin - range->start : -1;
69910df4d0SMarek Vasut 
70910df4d0SMarek Vasut 		offset += range->end - range->start + 1;
71910df4d0SMarek Vasut 	}
72910df4d0SMarek Vasut 
73910df4d0SMarek Vasut 	return -EINVAL;
74910df4d0SMarek Vasut }
75910df4d0SMarek Vasut 
76910df4d0SMarek Vasut static int sh_pfc_enum_in_range(u16 enum_id, const struct pinmux_range *r)
77910df4d0SMarek Vasut {
78910df4d0SMarek Vasut 	if (enum_id < r->begin)
79910df4d0SMarek Vasut 		return 0;
80910df4d0SMarek Vasut 
81910df4d0SMarek Vasut 	if (enum_id > r->end)
82910df4d0SMarek Vasut 		return 0;
83910df4d0SMarek Vasut 
84910df4d0SMarek Vasut 	return 1;
85910df4d0SMarek Vasut }
86910df4d0SMarek Vasut 
87910df4d0SMarek Vasut u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width)
88910df4d0SMarek Vasut {
89910df4d0SMarek Vasut 	switch (reg_width) {
90910df4d0SMarek Vasut 	case 8:
91910df4d0SMarek Vasut 		return readb(mapped_reg);
92910df4d0SMarek Vasut 	case 16:
93910df4d0SMarek Vasut 		return readw(mapped_reg);
94910df4d0SMarek Vasut 	case 32:
95910df4d0SMarek Vasut 		return readl(mapped_reg);
96910df4d0SMarek Vasut 	}
97910df4d0SMarek Vasut 
98910df4d0SMarek Vasut 	BUG();
99910df4d0SMarek Vasut 	return 0;
100910df4d0SMarek Vasut }
101910df4d0SMarek Vasut 
102910df4d0SMarek Vasut void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
103910df4d0SMarek Vasut 			  u32 data)
104910df4d0SMarek Vasut {
105910df4d0SMarek Vasut 	switch (reg_width) {
106910df4d0SMarek Vasut 	case 8:
107910df4d0SMarek Vasut 		writeb(data, mapped_reg);
108910df4d0SMarek Vasut 		return;
109910df4d0SMarek Vasut 	case 16:
110910df4d0SMarek Vasut 		writew(data, mapped_reg);
111910df4d0SMarek Vasut 		return;
112910df4d0SMarek Vasut 	case 32:
113910df4d0SMarek Vasut 		writel(data, mapped_reg);
114910df4d0SMarek Vasut 		return;
115910df4d0SMarek Vasut 	}
116910df4d0SMarek Vasut 
117910df4d0SMarek Vasut 	BUG();
118910df4d0SMarek Vasut }
119910df4d0SMarek Vasut 
120910df4d0SMarek Vasut u32 sh_pfc_read_reg(struct sh_pfc *pfc, u32 reg, unsigned int width)
121910df4d0SMarek Vasut {
122910df4d0SMarek Vasut 	return sh_pfc_read_raw_reg(pfc->regs + reg, width);
123910df4d0SMarek Vasut }
124910df4d0SMarek Vasut 
125910df4d0SMarek Vasut void sh_pfc_write_reg(struct sh_pfc *pfc, u32 reg, unsigned int width, u32 data)
126910df4d0SMarek Vasut {
127910df4d0SMarek Vasut 	void __iomem *unlock_reg =
128910df4d0SMarek Vasut 		(void __iomem *)(uintptr_t)pfc->info->unlock_reg;
129910df4d0SMarek Vasut 
130910df4d0SMarek Vasut 	if (pfc->info->unlock_reg)
131910df4d0SMarek Vasut 		sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
132910df4d0SMarek Vasut 
133910df4d0SMarek Vasut 	sh_pfc_write_raw_reg(pfc->regs + reg, width, data);
134910df4d0SMarek Vasut }
135910df4d0SMarek Vasut 
136910df4d0SMarek Vasut static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,
137910df4d0SMarek Vasut 				     const struct pinmux_cfg_reg *crp,
138910df4d0SMarek Vasut 				     unsigned int in_pos,
139910df4d0SMarek Vasut 				     void __iomem **mapped_regp, u32 *maskp,
140910df4d0SMarek Vasut 				     unsigned int *posp)
141910df4d0SMarek Vasut {
142910df4d0SMarek Vasut 	unsigned int k;
143910df4d0SMarek Vasut 
144910df4d0SMarek Vasut 	*mapped_regp = (void __iomem *)(uintptr_t)crp->reg;
145910df4d0SMarek Vasut 
146910df4d0SMarek Vasut 	if (crp->field_width) {
147910df4d0SMarek Vasut 		*maskp = (1 << crp->field_width) - 1;
148910df4d0SMarek Vasut 		*posp = crp->reg_width - ((in_pos + 1) * crp->field_width);
149910df4d0SMarek Vasut 	} else {
150910df4d0SMarek Vasut 		*maskp = (1 << crp->var_field_width[in_pos]) - 1;
151910df4d0SMarek Vasut 		*posp = crp->reg_width;
152910df4d0SMarek Vasut 		for (k = 0; k <= in_pos; k++)
153910df4d0SMarek Vasut 			*posp -= crp->var_field_width[k];
154910df4d0SMarek Vasut 	}
155910df4d0SMarek Vasut }
156910df4d0SMarek Vasut 
157910df4d0SMarek Vasut static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
158910df4d0SMarek Vasut 				    const struct pinmux_cfg_reg *crp,
159910df4d0SMarek Vasut 				    unsigned int field, u32 value)
160910df4d0SMarek Vasut {
161910df4d0SMarek Vasut 	void __iomem *mapped_reg;
162910df4d0SMarek Vasut 	void __iomem *unlock_reg =
163910df4d0SMarek Vasut 		(void __iomem *)(uintptr_t)pfc->info->unlock_reg;
164910df4d0SMarek Vasut 	unsigned int pos;
165910df4d0SMarek Vasut 	u32 mask, data;
166910df4d0SMarek Vasut 
167910df4d0SMarek Vasut 	sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);
168910df4d0SMarek Vasut 
169910df4d0SMarek Vasut 	dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, "
170910df4d0SMarek Vasut 		"r_width = %u, f_width = %u\n",
171910df4d0SMarek Vasut 		crp->reg, value, field, crp->reg_width, crp->field_width);
172910df4d0SMarek Vasut 
173910df4d0SMarek Vasut 	mask = ~(mask << pos);
174910df4d0SMarek Vasut 	value = value << pos;
175910df4d0SMarek Vasut 
176910df4d0SMarek Vasut 	data = sh_pfc_read_raw_reg(mapped_reg, crp->reg_width);
177910df4d0SMarek Vasut 	data &= mask;
178910df4d0SMarek Vasut 	data |= value;
179910df4d0SMarek Vasut 
180910df4d0SMarek Vasut 	if (pfc->info->unlock_reg)
181910df4d0SMarek Vasut 		sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
182910df4d0SMarek Vasut 
183910df4d0SMarek Vasut 	sh_pfc_write_raw_reg(mapped_reg, crp->reg_width, data);
184910df4d0SMarek Vasut }
185910df4d0SMarek Vasut 
186910df4d0SMarek Vasut static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,
187910df4d0SMarek Vasut 				 const struct pinmux_cfg_reg **crp,
188910df4d0SMarek Vasut 				 unsigned int *fieldp, u32 *valuep)
189910df4d0SMarek Vasut {
190910df4d0SMarek Vasut 	unsigned int k = 0;
191910df4d0SMarek Vasut 
192910df4d0SMarek Vasut 	while (1) {
193910df4d0SMarek Vasut 		const struct pinmux_cfg_reg *config_reg =
194910df4d0SMarek Vasut 			pfc->info->cfg_regs + k;
195910df4d0SMarek Vasut 		unsigned int r_width = config_reg->reg_width;
196910df4d0SMarek Vasut 		unsigned int f_width = config_reg->field_width;
197910df4d0SMarek Vasut 		unsigned int curr_width;
198910df4d0SMarek Vasut 		unsigned int bit_pos;
199910df4d0SMarek Vasut 		unsigned int pos = 0;
200910df4d0SMarek Vasut 		unsigned int m = 0;
201910df4d0SMarek Vasut 
202910df4d0SMarek Vasut 		if (!r_width)
203910df4d0SMarek Vasut 			break;
204910df4d0SMarek Vasut 
205910df4d0SMarek Vasut 		for (bit_pos = 0; bit_pos < r_width; bit_pos += curr_width) {
206910df4d0SMarek Vasut 			u32 ncomb;
207910df4d0SMarek Vasut 			u32 n;
208910df4d0SMarek Vasut 
209910df4d0SMarek Vasut 			if (f_width)
210910df4d0SMarek Vasut 				curr_width = f_width;
211910df4d0SMarek Vasut 			else
212910df4d0SMarek Vasut 				curr_width = config_reg->var_field_width[m];
213910df4d0SMarek Vasut 
214910df4d0SMarek Vasut 			ncomb = 1 << curr_width;
215910df4d0SMarek Vasut 			for (n = 0; n < ncomb; n++) {
216910df4d0SMarek Vasut 				if (config_reg->enum_ids[pos + n] == enum_id) {
217910df4d0SMarek Vasut 					*crp = config_reg;
218910df4d0SMarek Vasut 					*fieldp = m;
219910df4d0SMarek Vasut 					*valuep = n;
220910df4d0SMarek Vasut 					return 0;
221910df4d0SMarek Vasut 				}
222910df4d0SMarek Vasut 			}
223910df4d0SMarek Vasut 			pos += ncomb;
224910df4d0SMarek Vasut 			m++;
225910df4d0SMarek Vasut 		}
226910df4d0SMarek Vasut 		k++;
227910df4d0SMarek Vasut 	}
228910df4d0SMarek Vasut 
229910df4d0SMarek Vasut 	return -EINVAL;
230910df4d0SMarek Vasut }
231910df4d0SMarek Vasut 
232910df4d0SMarek Vasut static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, u16 mark, int pos,
233910df4d0SMarek Vasut 			      u16 *enum_idp)
234910df4d0SMarek Vasut {
235910df4d0SMarek Vasut 	const u16 *data = pfc->info->pinmux_data;
236910df4d0SMarek Vasut 	unsigned int k;
237910df4d0SMarek Vasut 
238910df4d0SMarek Vasut 	if (pos) {
239910df4d0SMarek Vasut 		*enum_idp = data[pos + 1];
240910df4d0SMarek Vasut 		return pos + 1;
241910df4d0SMarek Vasut 	}
242910df4d0SMarek Vasut 
243910df4d0SMarek Vasut 	for (k = 0; k < pfc->info->pinmux_data_size; k++) {
244910df4d0SMarek Vasut 		if (data[k] == mark) {
245910df4d0SMarek Vasut 			*enum_idp = data[k + 1];
246910df4d0SMarek Vasut 			return k + 1;
247910df4d0SMarek Vasut 		}
248910df4d0SMarek Vasut 	}
249910df4d0SMarek Vasut 
250910df4d0SMarek Vasut 	dev_err(pfc->dev, "cannot locate data/mark enum_id for mark %d\n",
251910df4d0SMarek Vasut 		mark);
252910df4d0SMarek Vasut 	return -EINVAL;
253910df4d0SMarek Vasut }
254910df4d0SMarek Vasut 
255910df4d0SMarek Vasut int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
256910df4d0SMarek Vasut {
257910df4d0SMarek Vasut 	const struct pinmux_range *range;
258910df4d0SMarek Vasut 	int pos = 0;
259910df4d0SMarek Vasut 
260910df4d0SMarek Vasut 	switch (pinmux_type) {
261910df4d0SMarek Vasut 	case PINMUX_TYPE_GPIO:
262910df4d0SMarek Vasut 	case PINMUX_TYPE_FUNCTION:
263910df4d0SMarek Vasut 		range = NULL;
264910df4d0SMarek Vasut 		break;
265910df4d0SMarek Vasut 
266910df4d0SMarek Vasut 	case PINMUX_TYPE_OUTPUT:
267910df4d0SMarek Vasut 		range = &pfc->info->output;
268910df4d0SMarek Vasut 		break;
269910df4d0SMarek Vasut 
270910df4d0SMarek Vasut 	case PINMUX_TYPE_INPUT:
271910df4d0SMarek Vasut 		range = &pfc->info->input;
272910df4d0SMarek Vasut 		break;
273910df4d0SMarek Vasut 
274910df4d0SMarek Vasut 	default:
275910df4d0SMarek Vasut 		return -EINVAL;
276910df4d0SMarek Vasut 	}
277910df4d0SMarek Vasut 
278910df4d0SMarek Vasut 	/* Iterate over all the configuration fields we need to update. */
279910df4d0SMarek Vasut 	while (1) {
280910df4d0SMarek Vasut 		const struct pinmux_cfg_reg *cr;
281910df4d0SMarek Vasut 		unsigned int field;
282910df4d0SMarek Vasut 		u16 enum_id;
283910df4d0SMarek Vasut 		u32 value;
284910df4d0SMarek Vasut 		int in_range;
285910df4d0SMarek Vasut 		int ret;
286910df4d0SMarek Vasut 
287910df4d0SMarek Vasut 		pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);
288910df4d0SMarek Vasut 		if (pos < 0)
289910df4d0SMarek Vasut 			return pos;
290910df4d0SMarek Vasut 
291910df4d0SMarek Vasut 		if (!enum_id)
292910df4d0SMarek Vasut 			break;
293910df4d0SMarek Vasut 
294910df4d0SMarek Vasut 		/* Check if the configuration field selects a function. If it
295910df4d0SMarek Vasut 		 * doesn't, skip the field if it's not applicable to the
296910df4d0SMarek Vasut 		 * requested pinmux type.
297910df4d0SMarek Vasut 		 */
298910df4d0SMarek Vasut 		in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);
299910df4d0SMarek Vasut 		if (!in_range) {
300910df4d0SMarek Vasut 			if (pinmux_type == PINMUX_TYPE_FUNCTION) {
301910df4d0SMarek Vasut 				/* Functions are allowed to modify all
302910df4d0SMarek Vasut 				 * fields.
303910df4d0SMarek Vasut 				 */
304910df4d0SMarek Vasut 				in_range = 1;
305910df4d0SMarek Vasut 			} else if (pinmux_type != PINMUX_TYPE_GPIO) {
306910df4d0SMarek Vasut 				/* Input/output types can only modify fields
307910df4d0SMarek Vasut 				 * that correspond to their respective ranges.
308910df4d0SMarek Vasut 				 */
309910df4d0SMarek Vasut 				in_range = sh_pfc_enum_in_range(enum_id, range);
310910df4d0SMarek Vasut 
311910df4d0SMarek Vasut 				/*
312910df4d0SMarek Vasut 				 * special case pass through for fixed
313910df4d0SMarek Vasut 				 * input-only or output-only pins without
314910df4d0SMarek Vasut 				 * function enum register association.
315910df4d0SMarek Vasut 				 */
316910df4d0SMarek Vasut 				if (in_range && enum_id == range->force)
317910df4d0SMarek Vasut 					continue;
318910df4d0SMarek Vasut 			}
319910df4d0SMarek Vasut 			/* GPIOs are only allowed to modify function fields. */
320910df4d0SMarek Vasut 		}
321910df4d0SMarek Vasut 
322910df4d0SMarek Vasut 		if (!in_range)
323910df4d0SMarek Vasut 			continue;
324910df4d0SMarek Vasut 
325910df4d0SMarek Vasut 		ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);
326910df4d0SMarek Vasut 		if (ret < 0)
327910df4d0SMarek Vasut 			return ret;
328910df4d0SMarek Vasut 
329910df4d0SMarek Vasut 		sh_pfc_write_config_reg(pfc, cr, field, value);
330910df4d0SMarek Vasut 	}
331910df4d0SMarek Vasut 
332910df4d0SMarek Vasut 	return 0;
333910df4d0SMarek Vasut }
334910df4d0SMarek Vasut 
335910df4d0SMarek Vasut const struct sh_pfc_bias_info *
336910df4d0SMarek Vasut sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
337910df4d0SMarek Vasut 			unsigned int num, unsigned int pin)
338910df4d0SMarek Vasut {
339910df4d0SMarek Vasut 	unsigned int i;
340910df4d0SMarek Vasut 
341910df4d0SMarek Vasut 	for (i = 0; i < num; i++)
342910df4d0SMarek Vasut 		if (info[i].pin == pin)
343910df4d0SMarek Vasut 			return &info[i];
344910df4d0SMarek Vasut 
345910df4d0SMarek Vasut 	printf("Pin %u is not in bias info list\n", pin);
346910df4d0SMarek Vasut 
347910df4d0SMarek Vasut 	return NULL;
348910df4d0SMarek Vasut }
349910df4d0SMarek Vasut 
350910df4d0SMarek Vasut static int sh_pfc_init_ranges(struct sh_pfc *pfc)
351910df4d0SMarek Vasut {
352910df4d0SMarek Vasut 	struct sh_pfc_pin_range *range;
353910df4d0SMarek Vasut 	unsigned int nr_ranges;
354910df4d0SMarek Vasut 	unsigned int i;
355910df4d0SMarek Vasut 
356910df4d0SMarek Vasut 	if (pfc->info->pins[0].pin == (u16)-1) {
357910df4d0SMarek Vasut 		/* Pin number -1 denotes that the SoC doesn't report pin numbers
358910df4d0SMarek Vasut 		 * in its pin arrays yet. Consider the pin numbers range as
359910df4d0SMarek Vasut 		 * continuous and allocate a single range.
360910df4d0SMarek Vasut 		 */
361910df4d0SMarek Vasut 		pfc->nr_ranges = 1;
362910df4d0SMarek Vasut 		pfc->ranges = kzalloc(sizeof(*pfc->ranges), GFP_KERNEL);
363910df4d0SMarek Vasut 		if (pfc->ranges == NULL)
364910df4d0SMarek Vasut 			return -ENOMEM;
365910df4d0SMarek Vasut 
366910df4d0SMarek Vasut 		pfc->ranges->start = 0;
367910df4d0SMarek Vasut 		pfc->ranges->end = pfc->info->nr_pins - 1;
368910df4d0SMarek Vasut 		pfc->nr_gpio_pins = pfc->info->nr_pins;
369910df4d0SMarek Vasut 
370910df4d0SMarek Vasut 		return 0;
371910df4d0SMarek Vasut 	}
372910df4d0SMarek Vasut 
373910df4d0SMarek Vasut 	/* Count, allocate and fill the ranges. The PFC SoC data pins array must
374910df4d0SMarek Vasut 	 * be sorted by pin numbers, and pins without a GPIO port must come
375910df4d0SMarek Vasut 	 * last.
376910df4d0SMarek Vasut 	 */
377910df4d0SMarek Vasut 	for (i = 1, nr_ranges = 1; i < pfc->info->nr_pins; ++i) {
378910df4d0SMarek Vasut 		if (pfc->info->pins[i-1].pin != pfc->info->pins[i].pin - 1)
379910df4d0SMarek Vasut 			nr_ranges++;
380910df4d0SMarek Vasut 	}
381910df4d0SMarek Vasut 
382910df4d0SMarek Vasut 	pfc->nr_ranges = nr_ranges;
383910df4d0SMarek Vasut 	pfc->ranges = kzalloc(sizeof(*pfc->ranges) * nr_ranges, GFP_KERNEL);
384910df4d0SMarek Vasut 	if (pfc->ranges == NULL)
385910df4d0SMarek Vasut 		return -ENOMEM;
386910df4d0SMarek Vasut 
387910df4d0SMarek Vasut 	range = pfc->ranges;
388910df4d0SMarek Vasut 	range->start = pfc->info->pins[0].pin;
389910df4d0SMarek Vasut 
390910df4d0SMarek Vasut 	for (i = 1; i < pfc->info->nr_pins; ++i) {
391910df4d0SMarek Vasut 		if (pfc->info->pins[i-1].pin == pfc->info->pins[i].pin - 1)
392910df4d0SMarek Vasut 			continue;
393910df4d0SMarek Vasut 
394910df4d0SMarek Vasut 		range->end = pfc->info->pins[i-1].pin;
395910df4d0SMarek Vasut 		if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
396910df4d0SMarek Vasut 			pfc->nr_gpio_pins = range->end + 1;
397910df4d0SMarek Vasut 
398910df4d0SMarek Vasut 		range++;
399910df4d0SMarek Vasut 		range->start = pfc->info->pins[i].pin;
400910df4d0SMarek Vasut 	}
401910df4d0SMarek Vasut 
402910df4d0SMarek Vasut 	range->end = pfc->info->pins[i-1].pin;
403910df4d0SMarek Vasut 	if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
404910df4d0SMarek Vasut 		pfc->nr_gpio_pins = range->end + 1;
405910df4d0SMarek Vasut 
406910df4d0SMarek Vasut 	return 0;
407910df4d0SMarek Vasut }
408910df4d0SMarek Vasut 
409910df4d0SMarek Vasut static int sh_pfc_pinctrl_get_pins_count(struct udevice *dev)
410910df4d0SMarek Vasut {
411910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
412910df4d0SMarek Vasut 
413910df4d0SMarek Vasut 	return priv->pfc.info->nr_pins;
414910df4d0SMarek Vasut }
415910df4d0SMarek Vasut 
416910df4d0SMarek Vasut static const char *sh_pfc_pinctrl_get_pin_name(struct udevice *dev,
417910df4d0SMarek Vasut 						  unsigned selector)
418910df4d0SMarek Vasut {
419910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
420910df4d0SMarek Vasut 
421910df4d0SMarek Vasut 	return priv->pfc.info->pins[selector].name;
422910df4d0SMarek Vasut }
423910df4d0SMarek Vasut 
424910df4d0SMarek Vasut static int sh_pfc_pinctrl_get_groups_count(struct udevice *dev)
425910df4d0SMarek Vasut {
426910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
427910df4d0SMarek Vasut 
428910df4d0SMarek Vasut 	return priv->pfc.info->nr_groups;
429910df4d0SMarek Vasut }
430910df4d0SMarek Vasut 
431910df4d0SMarek Vasut static const char *sh_pfc_pinctrl_get_group_name(struct udevice *dev,
432910df4d0SMarek Vasut 						  unsigned selector)
433910df4d0SMarek Vasut {
434910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
435910df4d0SMarek Vasut 
436910df4d0SMarek Vasut 	return priv->pfc.info->groups[selector].name;
437910df4d0SMarek Vasut }
438910df4d0SMarek Vasut 
439910df4d0SMarek Vasut static int sh_pfc_pinctrl_get_functions_count(struct udevice *dev)
440910df4d0SMarek Vasut {
441910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
442910df4d0SMarek Vasut 
443910df4d0SMarek Vasut 	return priv->pfc.info->nr_functions;
444910df4d0SMarek Vasut }
445910df4d0SMarek Vasut 
446910df4d0SMarek Vasut static const char *sh_pfc_pinctrl_get_function_name(struct udevice *dev,
447910df4d0SMarek Vasut 						  unsigned selector)
448910df4d0SMarek Vasut {
449910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
450910df4d0SMarek Vasut 
451910df4d0SMarek Vasut 	return priv->pfc.info->functions[selector].name;
452910df4d0SMarek Vasut }
453910df4d0SMarek Vasut 
454f6e545a7SMarek Vasut int sh_pfc_config_mux_for_gpio(struct udevice *dev, unsigned pin_selector)
455f6e545a7SMarek Vasut {
456f6e545a7SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
457f6e545a7SMarek Vasut 	struct sh_pfc_pinctrl *pmx = &priv->pmx;
458f6e545a7SMarek Vasut 	struct sh_pfc *pfc = &priv->pfc;
459f6e545a7SMarek Vasut 	struct sh_pfc_pin_config *cfg;
460f6e545a7SMarek Vasut 	const struct sh_pfc_pin *pin = NULL;
461f6e545a7SMarek Vasut 	int i, idx;
462f6e545a7SMarek Vasut 
463f6e545a7SMarek Vasut 	for (i = 1; i < pfc->info->nr_pins; i++) {
464f6e545a7SMarek Vasut 		if (priv->pfc.info->pins[i].pin != pin_selector)
465f6e545a7SMarek Vasut 			continue;
466f6e545a7SMarek Vasut 
467f6e545a7SMarek Vasut 		pin = &priv->pfc.info->pins[i];
468f6e545a7SMarek Vasut 		break;
469f6e545a7SMarek Vasut 	}
470f6e545a7SMarek Vasut 
471f6e545a7SMarek Vasut 	if (!pin)
472f6e545a7SMarek Vasut 		return -EINVAL;
473f6e545a7SMarek Vasut 
474f6e545a7SMarek Vasut 	idx = sh_pfc_get_pin_index(pfc, pin->pin);
475f6e545a7SMarek Vasut 	cfg = &pmx->configs[idx];
476f6e545a7SMarek Vasut 
477f6e545a7SMarek Vasut 	if (cfg->type != PINMUX_TYPE_NONE)
478f6e545a7SMarek Vasut 		return -EBUSY;
479f6e545a7SMarek Vasut 
480f6e545a7SMarek Vasut 	return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_GPIO);
481f6e545a7SMarek Vasut }
482f6e545a7SMarek Vasut 
4832489bb54SMarek Vasut static int sh_pfc_pinctrl_pin_set(struct udevice *dev, unsigned pin_selector,
4842489bb54SMarek Vasut 				  unsigned func_selector)
4852489bb54SMarek Vasut {
4862489bb54SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
4872489bb54SMarek Vasut 	struct sh_pfc_pinctrl *pmx = &priv->pmx;
4882489bb54SMarek Vasut 	struct sh_pfc *pfc = &priv->pfc;
4892489bb54SMarek Vasut 	const struct sh_pfc_pin *pin = &priv->pfc.info->pins[pin_selector];
4902489bb54SMarek Vasut 	int idx = sh_pfc_get_pin_index(pfc, pin->pin);
4912489bb54SMarek Vasut 	struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
4922489bb54SMarek Vasut 
4932489bb54SMarek Vasut 	if (cfg->type != PINMUX_TYPE_NONE)
4942489bb54SMarek Vasut 		return -EBUSY;
4952489bb54SMarek Vasut 
4962489bb54SMarek Vasut 	return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_FUNCTION);
4972489bb54SMarek Vasut }
4982489bb54SMarek Vasut 
499910df4d0SMarek Vasut static int sh_pfc_pinctrl_group_set(struct udevice *dev, unsigned group_selector,
500910df4d0SMarek Vasut 				     unsigned func_selector)
501910df4d0SMarek Vasut {
502910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
503910df4d0SMarek Vasut 	struct sh_pfc_pinctrl *pmx = &priv->pmx;
504910df4d0SMarek Vasut 	struct sh_pfc *pfc = &priv->pfc;
505910df4d0SMarek Vasut 	const struct sh_pfc_pin_group *grp = &priv->pfc.info->groups[group_selector];
506910df4d0SMarek Vasut 	unsigned int i;
507910df4d0SMarek Vasut 	int ret = 0;
508910df4d0SMarek Vasut 
509910df4d0SMarek Vasut 	for (i = 0; i < grp->nr_pins; ++i) {
510910df4d0SMarek Vasut 		int idx = sh_pfc_get_pin_index(pfc, grp->pins[i]);
511910df4d0SMarek Vasut 		struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
512910df4d0SMarek Vasut 
513910df4d0SMarek Vasut 		if (cfg->type != PINMUX_TYPE_NONE) {
514910df4d0SMarek Vasut 			ret = -EBUSY;
515910df4d0SMarek Vasut 			goto done;
516910df4d0SMarek Vasut 		}
517910df4d0SMarek Vasut 	}
518910df4d0SMarek Vasut 
519910df4d0SMarek Vasut 	for (i = 0; i < grp->nr_pins; ++i) {
520910df4d0SMarek Vasut 		ret = sh_pfc_config_mux(pfc, grp->mux[i], PINMUX_TYPE_FUNCTION);
521910df4d0SMarek Vasut 		if (ret < 0)
522910df4d0SMarek Vasut 			break;
523910df4d0SMarek Vasut 	}
524910df4d0SMarek Vasut 
525910df4d0SMarek Vasut done:
526910df4d0SMarek Vasut 	return ret;
527910df4d0SMarek Vasut }
528d52132c3SMarek Vasut #if CONFIG_IS_ENABLED(PINCONF)
529d52132c3SMarek Vasut static const struct pinconf_param sh_pfc_pinconf_params[] = {
530d52132c3SMarek Vasut 	{ "bias-disable",	PIN_CONFIG_BIAS_DISABLE,	0 },
531d52132c3SMarek Vasut 	{ "bias-pull-up",	PIN_CONFIG_BIAS_PULL_UP,	1 },
532d52132c3SMarek Vasut 	{ "bias-pull-down",	PIN_CONFIG_BIAS_PULL_DOWN,	1 },
533d52132c3SMarek Vasut 	{ "drive-strength",	PIN_CONFIG_DRIVE_STRENGTH,	0 },
534d52132c3SMarek Vasut 	{ "power-source",	PIN_CONFIG_POWER_SOURCE,	3300 },
535d52132c3SMarek Vasut };
536d52132c3SMarek Vasut 
537d52132c3SMarek Vasut static void __iomem *
538d52132c3SMarek Vasut sh_pfc_pinconf_find_drive_strength_reg(struct sh_pfc *pfc, unsigned int pin,
539d52132c3SMarek Vasut 				       unsigned int *offset, unsigned int *size)
540d52132c3SMarek Vasut {
541d52132c3SMarek Vasut 	const struct pinmux_drive_reg_field *field;
542d52132c3SMarek Vasut 	const struct pinmux_drive_reg *reg;
543d52132c3SMarek Vasut 	unsigned int i;
544d52132c3SMarek Vasut 
545d52132c3SMarek Vasut 	for (reg = pfc->info->drive_regs; reg->reg; ++reg) {
546d52132c3SMarek Vasut 		for (i = 0; i < ARRAY_SIZE(reg->fields); ++i) {
547d52132c3SMarek Vasut 			field = &reg->fields[i];
548d52132c3SMarek Vasut 
549d52132c3SMarek Vasut 			if (field->size && field->pin == pin) {
550d52132c3SMarek Vasut 				*offset = field->offset;
551d52132c3SMarek Vasut 				*size = field->size;
552d52132c3SMarek Vasut 
553d52132c3SMarek Vasut 				return (void __iomem *)(uintptr_t)reg->reg;
554d52132c3SMarek Vasut 			}
555d52132c3SMarek Vasut 		}
556d52132c3SMarek Vasut 	}
557d52132c3SMarek Vasut 
558d52132c3SMarek Vasut 	return NULL;
559d52132c3SMarek Vasut }
560d52132c3SMarek Vasut 
561d52132c3SMarek Vasut static int sh_pfc_pinconf_set_drive_strength(struct sh_pfc *pfc,
562d52132c3SMarek Vasut 					     unsigned int pin, u16 strength)
563d52132c3SMarek Vasut {
564d52132c3SMarek Vasut 	unsigned int offset;
565d52132c3SMarek Vasut 	unsigned int size;
566d52132c3SMarek Vasut 	unsigned int step;
567d52132c3SMarek Vasut 	void __iomem *reg;
568d52132c3SMarek Vasut 	void __iomem *unlock_reg =
569d52132c3SMarek Vasut 		(void __iomem *)(uintptr_t)pfc->info->unlock_reg;
570d52132c3SMarek Vasut 	u32 val;
571d52132c3SMarek Vasut 
572d52132c3SMarek Vasut 	reg = sh_pfc_pinconf_find_drive_strength_reg(pfc, pin, &offset, &size);
573d52132c3SMarek Vasut 	if (!reg)
574d52132c3SMarek Vasut 		return -EINVAL;
575d52132c3SMarek Vasut 
576d52132c3SMarek Vasut 	step = size == 2 ? 6 : 3;
577d52132c3SMarek Vasut 
578d52132c3SMarek Vasut 	if (strength < step || strength > 24)
579d52132c3SMarek Vasut 		return -EINVAL;
580d52132c3SMarek Vasut 
581d52132c3SMarek Vasut 	/* Convert the value from mA based on a full drive strength value of
582d52132c3SMarek Vasut 	 * 24mA. We can make the full value configurable later if needed.
583d52132c3SMarek Vasut 	 */
584d52132c3SMarek Vasut 	strength = strength / step - 1;
585d52132c3SMarek Vasut 
586d52132c3SMarek Vasut 	val = sh_pfc_read_raw_reg(reg, 32);
587d52132c3SMarek Vasut 	val &= ~GENMASK(offset + size - 1, offset);
588d52132c3SMarek Vasut 	val |= strength << offset;
589d52132c3SMarek Vasut 
590d52132c3SMarek Vasut 	if (unlock_reg)
591d52132c3SMarek Vasut 		sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
592d52132c3SMarek Vasut 
593d52132c3SMarek Vasut 	sh_pfc_write_raw_reg(reg, 32, val);
594d52132c3SMarek Vasut 
595d52132c3SMarek Vasut 	return 0;
596d52132c3SMarek Vasut }
597d52132c3SMarek Vasut 
598d52132c3SMarek Vasut /* Check whether the requested parameter is supported for a pin. */
599d52132c3SMarek Vasut static bool sh_pfc_pinconf_validate(struct sh_pfc *pfc, unsigned int _pin,
600d52132c3SMarek Vasut 				    unsigned int param)
601d52132c3SMarek Vasut {
602d52132c3SMarek Vasut 	int idx = sh_pfc_get_pin_index(pfc, _pin);
603d52132c3SMarek Vasut 	const struct sh_pfc_pin *pin = &pfc->info->pins[idx];
604d52132c3SMarek Vasut 
605d52132c3SMarek Vasut 	switch (param) {
606d52132c3SMarek Vasut 	case PIN_CONFIG_BIAS_DISABLE:
607d52132c3SMarek Vasut 		return pin->configs &
608d52132c3SMarek Vasut 			(SH_PFC_PIN_CFG_PULL_UP | SH_PFC_PIN_CFG_PULL_DOWN);
609d52132c3SMarek Vasut 
610d52132c3SMarek Vasut 	case PIN_CONFIG_BIAS_PULL_UP:
611d52132c3SMarek Vasut 		return pin->configs & SH_PFC_PIN_CFG_PULL_UP;
612d52132c3SMarek Vasut 
613d52132c3SMarek Vasut 	case PIN_CONFIG_BIAS_PULL_DOWN:
614d52132c3SMarek Vasut 		return pin->configs & SH_PFC_PIN_CFG_PULL_DOWN;
615d52132c3SMarek Vasut 
616d52132c3SMarek Vasut 	case PIN_CONFIG_DRIVE_STRENGTH:
617d52132c3SMarek Vasut 		return pin->configs & SH_PFC_PIN_CFG_DRIVE_STRENGTH;
618d52132c3SMarek Vasut 
619d52132c3SMarek Vasut 	case PIN_CONFIG_POWER_SOURCE:
620d52132c3SMarek Vasut 		return pin->configs & SH_PFC_PIN_CFG_IO_VOLTAGE;
621d52132c3SMarek Vasut 
622d52132c3SMarek Vasut 	default:
623d52132c3SMarek Vasut 		return false;
624d52132c3SMarek Vasut 	}
625d52132c3SMarek Vasut }
626d52132c3SMarek Vasut 
627d52132c3SMarek Vasut static int sh_pfc_pinconf_set(struct sh_pfc_pinctrl *pmx, unsigned _pin,
628d52132c3SMarek Vasut 			      unsigned int param, unsigned int arg)
629d52132c3SMarek Vasut {
630d52132c3SMarek Vasut 	struct sh_pfc *pfc = pmx->pfc;
631d52132c3SMarek Vasut 	void __iomem *pocctrl;
632d52132c3SMarek Vasut 	void __iomem *unlock_reg =
633d52132c3SMarek Vasut 		(void __iomem *)(uintptr_t)pfc->info->unlock_reg;
634d52132c3SMarek Vasut 	u32 addr, val;
635d52132c3SMarek Vasut 	int bit, ret;
636d52132c3SMarek Vasut 
637d52132c3SMarek Vasut 	if (!sh_pfc_pinconf_validate(pfc, _pin, param))
638d52132c3SMarek Vasut 		return -ENOTSUPP;
639d52132c3SMarek Vasut 
640d52132c3SMarek Vasut 	switch (param) {
641d52132c3SMarek Vasut 	case PIN_CONFIG_BIAS_PULL_UP:
642d52132c3SMarek Vasut 	case PIN_CONFIG_BIAS_PULL_DOWN:
643d52132c3SMarek Vasut 	case PIN_CONFIG_BIAS_DISABLE:
644d52132c3SMarek Vasut 		if (!pfc->info->ops || !pfc->info->ops->set_bias)
645d52132c3SMarek Vasut 			return -ENOTSUPP;
646d52132c3SMarek Vasut 
647d52132c3SMarek Vasut 		pfc->info->ops->set_bias(pfc, _pin, param);
648d52132c3SMarek Vasut 
649d52132c3SMarek Vasut 		break;
650d52132c3SMarek Vasut 
651d52132c3SMarek Vasut 	case PIN_CONFIG_DRIVE_STRENGTH:
652d52132c3SMarek Vasut 		ret = sh_pfc_pinconf_set_drive_strength(pfc, _pin, arg);
653d52132c3SMarek Vasut 		if (ret < 0)
654d52132c3SMarek Vasut 			return ret;
655d52132c3SMarek Vasut 
656d52132c3SMarek Vasut 		break;
657d52132c3SMarek Vasut 
658d52132c3SMarek Vasut 	case PIN_CONFIG_POWER_SOURCE:
659d52132c3SMarek Vasut 		if (!pfc->info->ops || !pfc->info->ops->pin_to_pocctrl)
660d52132c3SMarek Vasut 			return -ENOTSUPP;
661d52132c3SMarek Vasut 
662d52132c3SMarek Vasut 		bit = pfc->info->ops->pin_to_pocctrl(pfc, _pin, &addr);
663d52132c3SMarek Vasut 		if (bit < 0) {
664d52132c3SMarek Vasut 			printf("invalid pin %#x", _pin);
665d52132c3SMarek Vasut 			return bit;
666d52132c3SMarek Vasut 		}
667d52132c3SMarek Vasut 
668d52132c3SMarek Vasut 		if (arg != 1800 && arg != 3300)
669d52132c3SMarek Vasut 			return -EINVAL;
670d52132c3SMarek Vasut 
671d52132c3SMarek Vasut 		pocctrl = (void __iomem *)(uintptr_t)addr;
672d52132c3SMarek Vasut 
673d52132c3SMarek Vasut 		val = sh_pfc_read_raw_reg(pocctrl, 32);
674d52132c3SMarek Vasut 		if (arg == 3300)
675d52132c3SMarek Vasut 			val |= BIT(bit);
676d52132c3SMarek Vasut 		else
677d52132c3SMarek Vasut 			val &= ~BIT(bit);
678d52132c3SMarek Vasut 
679d52132c3SMarek Vasut 		if (unlock_reg)
680d52132c3SMarek Vasut 			sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
681d52132c3SMarek Vasut 
682d52132c3SMarek Vasut 		sh_pfc_write_raw_reg(pocctrl, 32, val);
683d52132c3SMarek Vasut 
684d52132c3SMarek Vasut 		break;
685d52132c3SMarek Vasut 
686d52132c3SMarek Vasut 	default:
687d52132c3SMarek Vasut 		return -ENOTSUPP;
688d52132c3SMarek Vasut 	}
689d52132c3SMarek Vasut 
690d52132c3SMarek Vasut 	return 0;
691d52132c3SMarek Vasut }
692d52132c3SMarek Vasut 
6932489bb54SMarek Vasut static int sh_pfc_pinconf_pin_set(struct udevice *dev,
6942489bb54SMarek Vasut 				  unsigned int pin_selector,
6952489bb54SMarek Vasut 				  unsigned int param, unsigned int arg)
6962489bb54SMarek Vasut {
6972489bb54SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
6982489bb54SMarek Vasut 	struct sh_pfc_pinctrl *pmx = &priv->pmx;
6992489bb54SMarek Vasut 	struct sh_pfc *pfc = &priv->pfc;
7002489bb54SMarek Vasut 	const struct sh_pfc_pin *pin = &pfc->info->pins[pin_selector];
7012489bb54SMarek Vasut 
7022489bb54SMarek Vasut 	sh_pfc_pinconf_set(pmx, pin->pin, param, arg);
7032489bb54SMarek Vasut 
7042489bb54SMarek Vasut 	return 0;
7052489bb54SMarek Vasut }
706d52132c3SMarek Vasut 
707d52132c3SMarek Vasut static int sh_pfc_pinconf_group_set(struct udevice *dev,
708d52132c3SMarek Vasut 				      unsigned int group_selector,
709d52132c3SMarek Vasut 				      unsigned int param, unsigned int arg)
710d52132c3SMarek Vasut {
711d52132c3SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
712d52132c3SMarek Vasut 	struct sh_pfc_pinctrl *pmx = &priv->pmx;
713d52132c3SMarek Vasut 	struct sh_pfc *pfc = &priv->pfc;
714d52132c3SMarek Vasut 	const struct sh_pfc_pin_group *grp = &pfc->info->groups[group_selector];
715d52132c3SMarek Vasut 	unsigned int i;
716d52132c3SMarek Vasut 
717d52132c3SMarek Vasut 	for (i = 0; i < grp->nr_pins; i++)
718d52132c3SMarek Vasut 		sh_pfc_pinconf_set(pmx, grp->pins[i], param, arg);
719d52132c3SMarek Vasut 
720d52132c3SMarek Vasut 	return 0;
721d52132c3SMarek Vasut }
722d52132c3SMarek Vasut #endif
723910df4d0SMarek Vasut 
724910df4d0SMarek Vasut static struct pinctrl_ops sh_pfc_pinctrl_ops = {
725910df4d0SMarek Vasut 	.get_pins_count		= sh_pfc_pinctrl_get_pins_count,
726910df4d0SMarek Vasut 	.get_pin_name		= sh_pfc_pinctrl_get_pin_name,
727910df4d0SMarek Vasut 	.get_groups_count	= sh_pfc_pinctrl_get_groups_count,
728910df4d0SMarek Vasut 	.get_group_name		= sh_pfc_pinctrl_get_group_name,
729910df4d0SMarek Vasut 	.get_functions_count	= sh_pfc_pinctrl_get_functions_count,
730910df4d0SMarek Vasut 	.get_function_name	= sh_pfc_pinctrl_get_function_name,
731910df4d0SMarek Vasut 
732d52132c3SMarek Vasut #if CONFIG_IS_ENABLED(PINCONF)
733d52132c3SMarek Vasut 	.pinconf_num_params	= ARRAY_SIZE(sh_pfc_pinconf_params),
734d52132c3SMarek Vasut 	.pinconf_params		= sh_pfc_pinconf_params,
7352489bb54SMarek Vasut 	.pinconf_set		= sh_pfc_pinconf_pin_set,
736d52132c3SMarek Vasut 	.pinconf_group_set	= sh_pfc_pinconf_group_set,
737d52132c3SMarek Vasut #endif
7382489bb54SMarek Vasut 	.pinmux_set		= sh_pfc_pinctrl_pin_set,
739910df4d0SMarek Vasut 	.pinmux_group_set	= sh_pfc_pinctrl_group_set,
740910df4d0SMarek Vasut 	.set_state		= pinctrl_generic_set_state,
741910df4d0SMarek Vasut };
742910df4d0SMarek Vasut 
743910df4d0SMarek Vasut static int sh_pfc_map_pins(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
744910df4d0SMarek Vasut {
745910df4d0SMarek Vasut 	unsigned int i;
746910df4d0SMarek Vasut 
747910df4d0SMarek Vasut 	/* Allocate and initialize the pins and configs arrays. */
748910df4d0SMarek Vasut 	pmx->configs = kzalloc(sizeof(*pmx->configs) * pfc->info->nr_pins,
749910df4d0SMarek Vasut 				    GFP_KERNEL);
750910df4d0SMarek Vasut 	if (unlikely(!pmx->configs))
751910df4d0SMarek Vasut 		return -ENOMEM;
752910df4d0SMarek Vasut 
753910df4d0SMarek Vasut 	for (i = 0; i < pfc->info->nr_pins; ++i) {
754910df4d0SMarek Vasut 		struct sh_pfc_pin_config *cfg = &pmx->configs[i];
755910df4d0SMarek Vasut 		cfg->type = PINMUX_TYPE_NONE;
756910df4d0SMarek Vasut 	}
757910df4d0SMarek Vasut 
758910df4d0SMarek Vasut 	return 0;
759910df4d0SMarek Vasut }
760910df4d0SMarek Vasut 
761910df4d0SMarek Vasut 
762910df4d0SMarek Vasut static int sh_pfc_pinctrl_probe(struct udevice *dev)
763910df4d0SMarek Vasut {
764910df4d0SMarek Vasut 	struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
765910df4d0SMarek Vasut 	enum sh_pfc_model model = dev_get_driver_data(dev);
766910df4d0SMarek Vasut 	fdt_addr_t base;
767910df4d0SMarek Vasut 
768910df4d0SMarek Vasut 	base = devfdt_get_addr(dev);
769910df4d0SMarek Vasut 	if (base == FDT_ADDR_T_NONE)
770910df4d0SMarek Vasut 		return -EINVAL;
771910df4d0SMarek Vasut 
772910df4d0SMarek Vasut 	priv->pfc.regs = devm_ioremap(dev, base, SZ_2K);
773910df4d0SMarek Vasut 	if (!priv->pfc.regs)
774910df4d0SMarek Vasut 		return -ENOMEM;
775910df4d0SMarek Vasut 
776*7547ad4cSMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A7790
777*7547ad4cSMarek Vasut 	if (model == SH_PFC_R8A7790)
778*7547ad4cSMarek Vasut 		priv->pfc.info = &r8a7790_pinmux_info;
779*7547ad4cSMarek Vasut #endif
780910df4d0SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A7795
781910df4d0SMarek Vasut 	if (model == SH_PFC_R8A7795)
782910df4d0SMarek Vasut 		priv->pfc.info = &r8a7795_pinmux_info;
783910df4d0SMarek Vasut #endif
784910df4d0SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A7796
785910df4d0SMarek Vasut 	if (model == SH_PFC_R8A7796)
786910df4d0SMarek Vasut 		priv->pfc.info = &r8a7796_pinmux_info;
787910df4d0SMarek Vasut #endif
788c106bb53SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A77970
789c106bb53SMarek Vasut 	if (model == SH_PFC_R8A77970)
790c106bb53SMarek Vasut 		priv->pfc.info = &r8a77970_pinmux_info;
791c106bb53SMarek Vasut #endif
792a59e6976SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A77995
793a59e6976SMarek Vasut 	if (model == SH_PFC_R8A77995)
794a59e6976SMarek Vasut 		priv->pfc.info = &r8a77995_pinmux_info;
795a59e6976SMarek Vasut #endif
796910df4d0SMarek Vasut 
797910df4d0SMarek Vasut 	priv->pmx.pfc = &priv->pfc;
798910df4d0SMarek Vasut 	sh_pfc_init_ranges(&priv->pfc);
799910df4d0SMarek Vasut 	sh_pfc_map_pins(&priv->pfc, &priv->pmx);
800910df4d0SMarek Vasut 
801910df4d0SMarek Vasut 	return 0;
802910df4d0SMarek Vasut }
803910df4d0SMarek Vasut 
804910df4d0SMarek Vasut static const struct udevice_id sh_pfc_pinctrl_ids[] = {
805*7547ad4cSMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A7790
806*7547ad4cSMarek Vasut 	{
807*7547ad4cSMarek Vasut 		.compatible = "renesas,pfc-r8a7790",
808*7547ad4cSMarek Vasut 		.data = SH_PFC_R8A7790,
809*7547ad4cSMarek Vasut 	},
810*7547ad4cSMarek Vasut #endif
811910df4d0SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A7795
812910df4d0SMarek Vasut 	{
813910df4d0SMarek Vasut 		.compatible = "renesas,pfc-r8a7795",
814910df4d0SMarek Vasut 		.data = SH_PFC_R8A7795,
815910df4d0SMarek Vasut 	},
816910df4d0SMarek Vasut #endif
817910df4d0SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A7796
818910df4d0SMarek Vasut 	{
819910df4d0SMarek Vasut 		.compatible = "renesas,pfc-r8a7796",
820910df4d0SMarek Vasut 		.data = SH_PFC_R8A7796,
821910df4d0SMarek Vasut 	},
822910df4d0SMarek Vasut #endif
823c106bb53SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A77970
824c106bb53SMarek Vasut 	{
825c106bb53SMarek Vasut 		.compatible = "renesas,pfc-r8a77970",
826c106bb53SMarek Vasut 		.data = SH_PFC_R8A77970,
827c106bb53SMarek Vasut 	},
828c106bb53SMarek Vasut #endif
829a59e6976SMarek Vasut #ifdef CONFIG_PINCTRL_PFC_R8A77995
830a59e6976SMarek Vasut 	{
831a59e6976SMarek Vasut 		.compatible = "renesas,pfc-r8a77995",
832a59e6976SMarek Vasut 		.data = SH_PFC_R8A77995,
833a59e6976SMarek Vasut 	},
834a59e6976SMarek Vasut #endif
835910df4d0SMarek Vasut 	{ },
836910df4d0SMarek Vasut };
837910df4d0SMarek Vasut 
838910df4d0SMarek Vasut U_BOOT_DRIVER(pinctrl_sh_pfc) = {
839910df4d0SMarek Vasut 	.name		= "sh_pfc_pinctrl",
840910df4d0SMarek Vasut 	.id		= UCLASS_PINCTRL,
841910df4d0SMarek Vasut 	.of_match	= sh_pfc_pinctrl_ids,
842910df4d0SMarek Vasut 	.priv_auto_alloc_size = sizeof(struct sh_pfc_pinctrl_priv),
843910df4d0SMarek Vasut 	.ops		= &sh_pfc_pinctrl_ops,
844910df4d0SMarek Vasut 	.probe		= sh_pfc_pinctrl_probe,
845910df4d0SMarek Vasut };
846