1 /*
2 * MediaTek MT7622 Pinctrl Driver
3 *
4 * Copyright (C) 2017 Sean Wang <sean.wang@mediatek.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 #include <linux/gpio.h>
17 #include <linux/gpio/driver.h>
18 #include <linux/io.h>
19 #include <linux/init.h>
20 #include <linux/mfd/syscon.h>
21 #include <linux/of.h>
22 #include <linux/of_irq.h>
23 #include <linux/of_platform.h>
24 #include <linux/platform_device.h>
25 #include <linux/pinctrl/pinctrl.h>
26 #include <linux/pinctrl/pinmux.h>
27 #include <linux/pinctrl/pinconf.h>
28 #include <linux/pinctrl/pinconf-generic.h>
29 #include <linux/regmap.h>
30
31 #include "../core.h"
32 #include "../pinconf.h"
33 #include "../pinmux.h"
34 #include "mtk-eint.h"
35
36 #define PINCTRL_PINCTRL_DEV KBUILD_MODNAME
37 #define MTK_RANGE(_a) { .range = (_a), .nranges = ARRAY_SIZE(_a), }
38 #define PINCTRL_PIN_GROUP(name, id) \
39 { \
40 name, \
41 id##_pins, \
42 ARRAY_SIZE(id##_pins), \
43 id##_funcs, \
44 }
45
46 #define MTK_GPIO_MODE 1
47 #define MTK_INPUT 0
48 #define MTK_OUTPUT 1
49 #define MTK_DISABLE 0
50 #define MTK_ENABLE 1
51
52 /* Custom pinconf parameters */
53 #define MTK_PIN_CONFIG_TDSEL (PIN_CONFIG_END + 1)
54 #define MTK_PIN_CONFIG_RDSEL (PIN_CONFIG_END + 2)
55
56 /* List these attributes which could be modified for the pin */
57 enum {
58 PINCTRL_PIN_REG_MODE,
59 PINCTRL_PIN_REG_DIR,
60 PINCTRL_PIN_REG_DI,
61 PINCTRL_PIN_REG_DO,
62 PINCTRL_PIN_REG_SR,
63 PINCTRL_PIN_REG_SMT,
64 PINCTRL_PIN_REG_PD,
65 PINCTRL_PIN_REG_PU,
66 PINCTRL_PIN_REG_E4,
67 PINCTRL_PIN_REG_E8,
68 PINCTRL_PIN_REG_TDSEL,
69 PINCTRL_PIN_REG_RDSEL,
70 PINCTRL_PIN_REG_MAX,
71 };
72
73 /* struct mtk_pin_field - the structure that holds the information of the field
74 * used to describe the attribute for the pin
75 * @offset: the register offset relative to the base address
76 * @mask: the mask used to filter out the field from the register
77 * @bitpos: the start bit relative to the register
78 * @next: the indication that the field would be extended to the
79 next register
80 */
81 struct mtk_pin_field {
82 u32 offset;
83 u32 mask;
84 u8 bitpos;
85 u8 next;
86 };
87
88 /* struct mtk_pin_field_calc - the structure that holds the range providing
89 * the guide used to look up the relevant field
90 * @s_pin: the start pin within the range
91 * @e_pin: the end pin within the range
92 * @s_addr: the start address for the range
93 * @x_addrs: the address distance between two consecutive registers
94 * within the range
95 * @s_bit: the start bit for the first register within the range
96 * @x_bits: the bit distance between two consecutive pins within
97 * the range
98 */
99 struct mtk_pin_field_calc {
100 u16 s_pin;
101 u16 e_pin;
102 u32 s_addr;
103 u8 x_addrs;
104 u8 s_bit;
105 u8 x_bits;
106 };
107
108 /* struct mtk_pin_reg_calc - the structure that holds all ranges used to
109 * determine which register the pin would make use of
110 * for certain pin attribute.
111 * @range: the start address for the range
112 * @nranges: the number of items in the range
113 */
114 struct mtk_pin_reg_calc {
115 const struct mtk_pin_field_calc *range;
116 unsigned int nranges;
117 };
118
119 /* struct mtk_pin_soc - the structure that holds SoC-specific data */
120 struct mtk_pin_soc {
121 const struct mtk_pin_reg_calc *reg_cal;
122 const struct pinctrl_pin_desc *pins;
123 unsigned int npins;
124 const struct group_desc *grps;
125 unsigned int ngrps;
126 const struct function_desc *funcs;
127 unsigned int nfuncs;
128 const struct mtk_eint_regs *eint_regs;
129 const struct mtk_eint_hw *eint_hw;
130 };
131
132 struct mtk_pinctrl {
133 struct pinctrl_dev *pctrl;
134 void __iomem *base;
135 struct device *dev;
136 struct gpio_chip chip;
137 const struct mtk_pin_soc *soc;
138 struct mtk_eint *eint;
139 };
140
141 static const struct mtk_pin_field_calc mt7622_pin_mode_range[] = {
142 {0, 0, 0x320, 0x10, 16, 4},
143 {1, 4, 0x3a0, 0x10, 16, 4},
144 {5, 5, 0x320, 0x10, 0, 4},
145 {6, 6, 0x300, 0x10, 4, 4},
146 {7, 7, 0x300, 0x10, 4, 4},
147 {8, 9, 0x350, 0x10, 20, 4},
148 {10, 10, 0x300, 0x10, 8, 4},
149 {11, 11, 0x300, 0x10, 8, 4},
150 {12, 12, 0x300, 0x10, 8, 4},
151 {13, 13, 0x300, 0x10, 8, 4},
152 {14, 15, 0x320, 0x10, 4, 4},
153 {16, 17, 0x320, 0x10, 20, 4},
154 {18, 21, 0x310, 0x10, 16, 4},
155 {22, 22, 0x380, 0x10, 16, 4},
156 {23, 23, 0x300, 0x10, 24, 4},
157 {24, 24, 0x300, 0x10, 24, 4},
158 {25, 25, 0x300, 0x10, 12, 4},
159 {25, 25, 0x300, 0x10, 12, 4},
160 {26, 26, 0x300, 0x10, 12, 4},
161 {27, 27, 0x300, 0x10, 12, 4},
162 {28, 28, 0x300, 0x10, 12, 4},
163 {29, 29, 0x300, 0x10, 12, 4},
164 {30, 30, 0x300, 0x10, 12, 4},
165 {31, 31, 0x300, 0x10, 12, 4},
166 {32, 32, 0x300, 0x10, 12, 4},
167 {33, 33, 0x300, 0x10, 12, 4},
168 {34, 34, 0x300, 0x10, 12, 4},
169 {35, 35, 0x300, 0x10, 12, 4},
170 {36, 36, 0x300, 0x10, 12, 4},
171 {37, 37, 0x300, 0x10, 20, 4},
172 {38, 38, 0x300, 0x10, 20, 4},
173 {39, 39, 0x300, 0x10, 20, 4},
174 {40, 40, 0x300, 0x10, 20, 4},
175 {41, 41, 0x300, 0x10, 20, 4},
176 {42, 42, 0x300, 0x10, 20, 4},
177 {43, 43, 0x300, 0x10, 20, 4},
178 {44, 44, 0x300, 0x10, 20, 4},
179 {45, 46, 0x300, 0x10, 20, 4},
180 {47, 47, 0x300, 0x10, 20, 4},
181 {48, 48, 0x300, 0x10, 20, 4},
182 {49, 49, 0x300, 0x10, 20, 4},
183 {50, 50, 0x300, 0x10, 20, 4},
184 {51, 70, 0x330, 0x10, 4, 4},
185 {71, 71, 0x300, 0x10, 16, 4},
186 {72, 72, 0x300, 0x10, 16, 4},
187 {73, 76, 0x310, 0x10, 0, 4},
188 {77, 77, 0x320, 0x10, 28, 4},
189 {78, 78, 0x320, 0x10, 12, 4},
190 {79, 82, 0x3a0, 0x10, 0, 4},
191 {83, 83, 0x350, 0x10, 28, 4},
192 {84, 84, 0x330, 0x10, 0, 4},
193 {85, 90, 0x360, 0x10, 4, 4},
194 {91, 94, 0x390, 0x10, 16, 4},
195 {95, 97, 0x380, 0x10, 20, 4},
196 {98, 101, 0x390, 0x10, 0, 4},
197 {102, 102, 0x360, 0x10, 0, 4},
198 };
199
200 static const struct mtk_pin_field_calc mt7622_pin_dir_range[] = {
201 {0, 102, 0x0, 0x10, 0, 1},
202 };
203
204 static const struct mtk_pin_field_calc mt7622_pin_di_range[] = {
205 {0, 102, 0x200, 0x10, 0, 1},
206 };
207
208 static const struct mtk_pin_field_calc mt7622_pin_do_range[] = {
209 {0, 102, 0x100, 0x10, 0, 1},
210 };
211
212 static const struct mtk_pin_field_calc mt7622_pin_sr_range[] = {
213 {0, 31, 0x910, 0x10, 0, 1},
214 {32, 50, 0xa10, 0x10, 0, 1},
215 {51, 70, 0x810, 0x10, 0, 1},
216 {71, 72, 0xb10, 0x10, 0, 1},
217 {73, 86, 0xb10, 0x10, 4, 1},
218 {87, 90, 0xc10, 0x10, 0, 1},
219 {91, 102, 0xb10, 0x10, 18, 1},
220 };
221
222 static const struct mtk_pin_field_calc mt7622_pin_smt_range[] = {
223 {0, 31, 0x920, 0x10, 0, 1},
224 {32, 50, 0xa20, 0x10, 0, 1},
225 {51, 70, 0x820, 0x10, 0, 1},
226 {71, 72, 0xb20, 0x10, 0, 1},
227 {73, 86, 0xb20, 0x10, 4, 1},
228 {87, 90, 0xc20, 0x10, 0, 1},
229 {91, 102, 0xb20, 0x10, 18, 1},
230 };
231
232 static const struct mtk_pin_field_calc mt7622_pin_pu_range[] = {
233 {0, 31, 0x930, 0x10, 0, 1},
234 {32, 50, 0xa30, 0x10, 0, 1},
235 {51, 70, 0x830, 0x10, 0, 1},
236 {71, 72, 0xb30, 0x10, 0, 1},
237 {73, 86, 0xb30, 0x10, 4, 1},
238 {87, 90, 0xc30, 0x10, 0, 1},
239 {91, 102, 0xb30, 0x10, 18, 1},
240 };
241
242 static const struct mtk_pin_field_calc mt7622_pin_pd_range[] = {
243 {0, 31, 0x940, 0x10, 0, 1},
244 {32, 50, 0xa40, 0x10, 0, 1},
245 {51, 70, 0x840, 0x10, 0, 1},
246 {71, 72, 0xb40, 0x10, 0, 1},
247 {73, 86, 0xb40, 0x10, 4, 1},
248 {87, 90, 0xc40, 0x10, 0, 1},
249 {91, 102, 0xb40, 0x10, 18, 1},
250 };
251
252 static const struct mtk_pin_field_calc mt7622_pin_e4_range[] = {
253 {0, 31, 0x960, 0x10, 0, 1},
254 {32, 50, 0xa60, 0x10, 0, 1},
255 {51, 70, 0x860, 0x10, 0, 1},
256 {71, 72, 0xb60, 0x10, 0, 1},
257 {73, 86, 0xb60, 0x10, 4, 1},
258 {87, 90, 0xc60, 0x10, 0, 1},
259 {91, 102, 0xb60, 0x10, 18, 1},
260 };
261
262 static const struct mtk_pin_field_calc mt7622_pin_e8_range[] = {
263 {0, 31, 0x970, 0x10, 0, 1},
264 {32, 50, 0xa70, 0x10, 0, 1},
265 {51, 70, 0x870, 0x10, 0, 1},
266 {71, 72, 0xb70, 0x10, 0, 1},
267 {73, 86, 0xb70, 0x10, 4, 1},
268 {87, 90, 0xc70, 0x10, 0, 1},
269 {91, 102, 0xb70, 0x10, 18, 1},
270 };
271
272 static const struct mtk_pin_field_calc mt7622_pin_tdsel_range[] = {
273 {0, 31, 0x980, 0x4, 0, 4},
274 {32, 50, 0xa80, 0x4, 0, 4},
275 {51, 70, 0x880, 0x4, 0, 4},
276 {71, 72, 0xb80, 0x4, 0, 4},
277 {73, 86, 0xb80, 0x4, 16, 4},
278 {87, 90, 0xc80, 0x4, 0, 4},
279 {91, 102, 0xb88, 0x4, 8, 4},
280 };
281
282 static const struct mtk_pin_field_calc mt7622_pin_rdsel_range[] = {
283 {0, 31, 0x990, 0x4, 0, 6},
284 {32, 50, 0xa90, 0x4, 0, 6},
285 {51, 58, 0x890, 0x4, 0, 6},
286 {59, 60, 0x894, 0x4, 28, 6},
287 {61, 62, 0x894, 0x4, 16, 6},
288 {63, 66, 0x898, 0x4, 8, 6},
289 {67, 68, 0x89c, 0x4, 12, 6},
290 {69, 70, 0x89c, 0x4, 0, 6},
291 {71, 72, 0xb90, 0x4, 0, 6},
292 {73, 86, 0xb90, 0x4, 24, 6},
293 {87, 90, 0xc90, 0x4, 0, 6},
294 {91, 102, 0xb9c, 0x4, 12, 6},
295 };
296
297 static const struct mtk_pin_reg_calc mt7622_reg_cals[PINCTRL_PIN_REG_MAX] = {
298 [PINCTRL_PIN_REG_MODE] = MTK_RANGE(mt7622_pin_mode_range),
299 [PINCTRL_PIN_REG_DIR] = MTK_RANGE(mt7622_pin_dir_range),
300 [PINCTRL_PIN_REG_DI] = MTK_RANGE(mt7622_pin_di_range),
301 [PINCTRL_PIN_REG_DO] = MTK_RANGE(mt7622_pin_do_range),
302 [PINCTRL_PIN_REG_SR] = MTK_RANGE(mt7622_pin_sr_range),
303 [PINCTRL_PIN_REG_SMT] = MTK_RANGE(mt7622_pin_smt_range),
304 [PINCTRL_PIN_REG_PU] = MTK_RANGE(mt7622_pin_pu_range),
305 [PINCTRL_PIN_REG_PD] = MTK_RANGE(mt7622_pin_pd_range),
306 [PINCTRL_PIN_REG_E4] = MTK_RANGE(mt7622_pin_e4_range),
307 [PINCTRL_PIN_REG_E8] = MTK_RANGE(mt7622_pin_e8_range),
308 [PINCTRL_PIN_REG_TDSEL] = MTK_RANGE(mt7622_pin_tdsel_range),
309 [PINCTRL_PIN_REG_RDSEL] = MTK_RANGE(mt7622_pin_rdsel_range),
310 };
311
312 static const struct pinctrl_pin_desc mt7622_pins[] = {
313 PINCTRL_PIN(0, "GPIO_A"),
314 PINCTRL_PIN(1, "I2S1_IN"),
315 PINCTRL_PIN(2, "I2S1_OUT"),
316 PINCTRL_PIN(3, "I2S_BCLK"),
317 PINCTRL_PIN(4, "I2S_WS"),
318 PINCTRL_PIN(5, "I2S_MCLK"),
319 PINCTRL_PIN(6, "TXD0"),
320 PINCTRL_PIN(7, "RXD0"),
321 PINCTRL_PIN(8, "SPI_WP"),
322 PINCTRL_PIN(9, "SPI_HOLD"),
323 PINCTRL_PIN(10, "SPI_CLK"),
324 PINCTRL_PIN(11, "SPI_MOSI"),
325 PINCTRL_PIN(12, "SPI_MISO"),
326 PINCTRL_PIN(13, "SPI_CS"),
327 PINCTRL_PIN(14, "I2C_SDA"),
328 PINCTRL_PIN(15, "I2C_SCL"),
329 PINCTRL_PIN(16, "I2S2_IN"),
330 PINCTRL_PIN(17, "I2S3_IN"),
331 PINCTRL_PIN(18, "I2S4_IN"),
332 PINCTRL_PIN(19, "I2S2_OUT"),
333 PINCTRL_PIN(20, "I2S3_OUT"),
334 PINCTRL_PIN(21, "I2S4_OUT"),
335 PINCTRL_PIN(22, "GPIO_B"),
336 PINCTRL_PIN(23, "MDC"),
337 PINCTRL_PIN(24, "MDIO"),
338 PINCTRL_PIN(25, "G2_TXD0"),
339 PINCTRL_PIN(26, "G2_TXD1"),
340 PINCTRL_PIN(27, "G2_TXD2"),
341 PINCTRL_PIN(28, "G2_TXD3"),
342 PINCTRL_PIN(29, "G2_TXEN"),
343 PINCTRL_PIN(30, "G2_TXC"),
344 PINCTRL_PIN(31, "G2_RXD0"),
345 PINCTRL_PIN(32, "G2_RXD1"),
346 PINCTRL_PIN(33, "G2_RXD2"),
347 PINCTRL_PIN(34, "G2_RXD3"),
348 PINCTRL_PIN(35, "G2_RXDV"),
349 PINCTRL_PIN(36, "G2_RXC"),
350 PINCTRL_PIN(37, "NCEB"),
351 PINCTRL_PIN(38, "NWEB"),
352 PINCTRL_PIN(39, "NREB"),
353 PINCTRL_PIN(40, "NDL4"),
354 PINCTRL_PIN(41, "NDL5"),
355 PINCTRL_PIN(42, "NDL6"),
356 PINCTRL_PIN(43, "NDL7"),
357 PINCTRL_PIN(44, "NRB"),
358 PINCTRL_PIN(45, "NCLE"),
359 PINCTRL_PIN(46, "NALE"),
360 PINCTRL_PIN(47, "NDL0"),
361 PINCTRL_PIN(48, "NDL1"),
362 PINCTRL_PIN(49, "NDL2"),
363 PINCTRL_PIN(50, "NDL3"),
364 PINCTRL_PIN(51, "MDI_TP_P0"),
365 PINCTRL_PIN(52, "MDI_TN_P0"),
366 PINCTRL_PIN(53, "MDI_RP_P0"),
367 PINCTRL_PIN(54, "MDI_RN_P0"),
368 PINCTRL_PIN(55, "MDI_TP_P1"),
369 PINCTRL_PIN(56, "MDI_TN_P1"),
370 PINCTRL_PIN(57, "MDI_RP_P1"),
371 PINCTRL_PIN(58, "MDI_RN_P1"),
372 PINCTRL_PIN(59, "MDI_RP_P2"),
373 PINCTRL_PIN(60, "MDI_RN_P2"),
374 PINCTRL_PIN(61, "MDI_TP_P2"),
375 PINCTRL_PIN(62, "MDI_TN_P2"),
376 PINCTRL_PIN(63, "MDI_TP_P3"),
377 PINCTRL_PIN(64, "MDI_TN_P3"),
378 PINCTRL_PIN(65, "MDI_RP_P3"),
379 PINCTRL_PIN(66, "MDI_RN_P3"),
380 PINCTRL_PIN(67, "MDI_RP_P4"),
381 PINCTRL_PIN(68, "MDI_RN_P4"),
382 PINCTRL_PIN(69, "MDI_TP_P4"),
383 PINCTRL_PIN(70, "MDI_TN_P4"),
384 PINCTRL_PIN(71, "PMIC_SCL"),
385 PINCTRL_PIN(72, "PMIC_SDA"),
386 PINCTRL_PIN(73, "SPIC1_CLK"),
387 PINCTRL_PIN(74, "SPIC1_MOSI"),
388 PINCTRL_PIN(75, "SPIC1_MISO"),
389 PINCTRL_PIN(76, "SPIC1_CS"),
390 PINCTRL_PIN(77, "GPIO_D"),
391 PINCTRL_PIN(78, "WATCHDOG"),
392 PINCTRL_PIN(79, "RTS3_N"),
393 PINCTRL_PIN(80, "CTS3_N"),
394 PINCTRL_PIN(81, "TXD3"),
395 PINCTRL_PIN(82, "RXD3"),
396 PINCTRL_PIN(83, "PERST0_N"),
397 PINCTRL_PIN(84, "PERST1_N"),
398 PINCTRL_PIN(85, "WLED_N"),
399 PINCTRL_PIN(86, "EPHY_LED0_N"),
400 PINCTRL_PIN(87, "AUXIN0"),
401 PINCTRL_PIN(88, "AUXIN1"),
402 PINCTRL_PIN(89, "AUXIN2"),
403 PINCTRL_PIN(90, "AUXIN3"),
404 PINCTRL_PIN(91, "TXD4"),
405 PINCTRL_PIN(92, "RXD4"),
406 PINCTRL_PIN(93, "RTS4_N"),
407 PINCTRL_PIN(94, "CTS4_N"),
408 PINCTRL_PIN(95, "PWM1"),
409 PINCTRL_PIN(96, "PWM2"),
410 PINCTRL_PIN(97, "PWM3"),
411 PINCTRL_PIN(98, "PWM4"),
412 PINCTRL_PIN(99, "PWM5"),
413 PINCTRL_PIN(100, "PWM6"),
414 PINCTRL_PIN(101, "PWM7"),
415 PINCTRL_PIN(102, "GPIO_E"),
416 };
417
418 /* List all groups consisting of these pins dedicated to the enablement of
419 * certain hardware block and the corresponding mode for all of the pins. The
420 * hardware probably has multiple combinations of these pinouts.
421 */
422
423 /* EMMC */
424 static int mt7622_emmc_pins[] = { 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, };
425 static int mt7622_emmc_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
426
427 static int mt7622_emmc_rst_pins[] = { 37, };
428 static int mt7622_emmc_rst_funcs[] = { 1, };
429
430 /* LED for EPHY */
431 static int mt7622_ephy_leds_pins[] = { 86, 91, 92, 93, 94, };
432 static int mt7622_ephy_leds_funcs[] = { 0, 0, 0, 0, 0, };
433 static int mt7622_ephy0_led_pins[] = { 86, };
434 static int mt7622_ephy0_led_funcs[] = { 0, };
435 static int mt7622_ephy1_led_pins[] = { 91, };
436 static int mt7622_ephy1_led_funcs[] = { 2, };
437 static int mt7622_ephy2_led_pins[] = { 92, };
438 static int mt7622_ephy2_led_funcs[] = { 2, };
439 static int mt7622_ephy3_led_pins[] = { 93, };
440 static int mt7622_ephy3_led_funcs[] = { 2, };
441 static int mt7622_ephy4_led_pins[] = { 94, };
442 static int mt7622_ephy4_led_funcs[] = { 2, };
443
444 /* Embedded Switch */
445 static int mt7622_esw_pins[] = { 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
446 62, 63, 64, 65, 66, 67, 68, 69, 70, };
447 static int mt7622_esw_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
448 0, 0, 0, 0, 0, 0, 0, 0, 0, };
449 static int mt7622_esw_p0_p1_pins[] = { 51, 52, 53, 54, 55, 56, 57, 58, };
450 static int mt7622_esw_p0_p1_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, };
451 static int mt7622_esw_p2_p3_p4_pins[] = { 59, 60, 61, 62, 63, 64, 65, 66, 67,
452 68, 69, 70, };
453 static int mt7622_esw_p2_p3_p4_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0,
454 0, 0, 0, };
455 /* RGMII via ESW */
456 static int mt7622_rgmii_via_esw_pins[] = { 59, 60, 61, 62, 63, 64, 65, 66,
457 67, 68, 69, 70, };
458 static int mt7622_rgmii_via_esw_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
459 0, };
460
461 /* RGMII via GMAC1 */
462 static int mt7622_rgmii_via_gmac1_pins[] = { 59, 60, 61, 62, 63, 64, 65, 66,
463 67, 68, 69, 70, };
464 static int mt7622_rgmii_via_gmac1_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
465 2, };
466
467 /* RGMII via GMAC2 */
468 static int mt7622_rgmii_via_gmac2_pins[] = { 25, 26, 27, 28, 29, 30, 31, 32,
469 33, 34, 35, 36, };
470 static int mt7622_rgmii_via_gmac2_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
471 0, };
472
473 /* I2C */
474 static int mt7622_i2c0_pins[] = { 14, 15, };
475 static int mt7622_i2c0_funcs[] = { 0, 0, };
476 static int mt7622_i2c1_0_pins[] = { 55, 56, };
477 static int mt7622_i2c1_0_funcs[] = { 0, 0, };
478 static int mt7622_i2c1_1_pins[] = { 73, 74, };
479 static int mt7622_i2c1_1_funcs[] = { 3, 3, };
480 static int mt7622_i2c1_2_pins[] = { 87, 88, };
481 static int mt7622_i2c1_2_funcs[] = { 0, 0, };
482 static int mt7622_i2c2_0_pins[] = { 57, 58, };
483 static int mt7622_i2c2_0_funcs[] = { 0, 0, };
484 static int mt7622_i2c2_1_pins[] = { 75, 76, };
485 static int mt7622_i2c2_1_funcs[] = { 3, 3, };
486 static int mt7622_i2c2_2_pins[] = { 89, 90, };
487 static int mt7622_i2c2_2_funcs[] = { 0, 0, };
488
489 /* I2S */
490 static int mt7622_i2s_in_mclk_bclk_ws_pins[] = { 3, 4, 5, };
491 static int mt7622_i2s_in_mclk_bclk_ws_funcs[] = { 3, 3, 0, };
492 static int mt7622_i2s1_in_data_pins[] = { 1, };
493 static int mt7622_i2s1_in_data_funcs[] = { 0, };
494 static int mt7622_i2s2_in_data_pins[] = { 16, };
495 static int mt7622_i2s2_in_data_funcs[] = { 0, };
496 static int mt7622_i2s3_in_data_pins[] = { 17, };
497 static int mt7622_i2s3_in_data_funcs[] = { 0, };
498 static int mt7622_i2s4_in_data_pins[] = { 18, };
499 static int mt7622_i2s4_in_data_funcs[] = { 0, };
500 static int mt7622_i2s_out_mclk_bclk_ws_pins[] = { 3, 4, 5, };
501 static int mt7622_i2s_out_mclk_bclk_ws_funcs[] = { 0, 0, 0, };
502 static int mt7622_i2s1_out_data_pins[] = { 2, };
503 static int mt7622_i2s1_out_data_funcs[] = { 0, };
504 static int mt7622_i2s2_out_data_pins[] = { 19, };
505 static int mt7622_i2s2_out_data_funcs[] = { 0, };
506 static int mt7622_i2s3_out_data_pins[] = { 20, };
507 static int mt7622_i2s3_out_data_funcs[] = { 0, };
508 static int mt7622_i2s4_out_data_pins[] = { 21, };
509 static int mt7622_i2s4_out_data_funcs[] = { 0, };
510
511 /* IR */
512 static int mt7622_ir_0_tx_pins[] = { 16, };
513 static int mt7622_ir_0_tx_funcs[] = { 4, };
514 static int mt7622_ir_1_tx_pins[] = { 59, };
515 static int mt7622_ir_1_tx_funcs[] = { 5, };
516 static int mt7622_ir_2_tx_pins[] = { 99, };
517 static int mt7622_ir_2_tx_funcs[] = { 3, };
518 static int mt7622_ir_0_rx_pins[] = { 17, };
519 static int mt7622_ir_0_rx_funcs[] = { 4, };
520 static int mt7622_ir_1_rx_pins[] = { 60, };
521 static int mt7622_ir_1_rx_funcs[] = { 5, };
522 static int mt7622_ir_2_rx_pins[] = { 100, };
523 static int mt7622_ir_2_rx_funcs[] = { 3, };
524
525 /* MDIO */
526 static int mt7622_mdc_mdio_pins[] = { 23, 24, };
527 static int mt7622_mdc_mdio_funcs[] = { 0, 0, };
528
529 /* PCIE */
530 static int mt7622_pcie0_0_waken_pins[] = { 14, };
531 static int mt7622_pcie0_0_waken_funcs[] = { 2, };
532 static int mt7622_pcie0_0_clkreq_pins[] = { 15, };
533 static int mt7622_pcie0_0_clkreq_funcs[] = { 2, };
534 static int mt7622_pcie0_1_waken_pins[] = { 79, };
535 static int mt7622_pcie0_1_waken_funcs[] = { 4, };
536 static int mt7622_pcie0_1_clkreq_pins[] = { 80, };
537 static int mt7622_pcie0_1_clkreq_funcs[] = { 4, };
538 static int mt7622_pcie1_0_waken_pins[] = { 14, };
539 static int mt7622_pcie1_0_waken_funcs[] = { 3, };
540 static int mt7622_pcie1_0_clkreq_pins[] = { 15, };
541 static int mt7622_pcie1_0_clkreq_funcs[] = { 3, };
542
543 static int mt7622_pcie0_pad_perst_pins[] = { 83, };
544 static int mt7622_pcie0_pad_perst_funcs[] = { 0, };
545 static int mt7622_pcie1_pad_perst_pins[] = { 84, };
546 static int mt7622_pcie1_pad_perst_funcs[] = { 0, };
547
548 /* PMIC bus */
549 static int mt7622_pmic_bus_pins[] = { 71, 72, };
550 static int mt7622_pmic_bus_funcs[] = { 0, 0, };
551
552 /* Parallel NAND */
553 static int mt7622_pnand_pins[] = { 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
554 48, 49, 50, };
555 static int mt7622_pnand_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
556 0, };
557
558 /* PWM */
559 static int mt7622_pwm_ch1_0_pins[] = { 51, };
560 static int mt7622_pwm_ch1_0_funcs[] = { 3, };
561 static int mt7622_pwm_ch1_1_pins[] = { 73, };
562 static int mt7622_pwm_ch1_1_funcs[] = { 4, };
563 static int mt7622_pwm_ch1_2_pins[] = { 95, };
564 static int mt7622_pwm_ch1_2_funcs[] = { 0, };
565 static int mt7622_pwm_ch2_0_pins[] = { 52, };
566 static int mt7622_pwm_ch2_0_funcs[] = { 3, };
567 static int mt7622_pwm_ch2_1_pins[] = { 74, };
568 static int mt7622_pwm_ch2_1_funcs[] = { 4, };
569 static int mt7622_pwm_ch2_2_pins[] = { 96, };
570 static int mt7622_pwm_ch2_2_funcs[] = { 0, };
571 static int mt7622_pwm_ch3_0_pins[] = { 53, };
572 static int mt7622_pwm_ch3_0_funcs[] = { 3, };
573 static int mt7622_pwm_ch3_1_pins[] = { 75, };
574 static int mt7622_pwm_ch3_1_funcs[] = { 4, };
575 static int mt7622_pwm_ch3_2_pins[] = { 97, };
576 static int mt7622_pwm_ch3_2_funcs[] = { 0, };
577 static int mt7622_pwm_ch4_0_pins[] = { 54, };
578 static int mt7622_pwm_ch4_0_funcs[] = { 3, };
579 static int mt7622_pwm_ch4_1_pins[] = { 67, };
580 static int mt7622_pwm_ch4_1_funcs[] = { 3, };
581 static int mt7622_pwm_ch4_2_pins[] = { 76, };
582 static int mt7622_pwm_ch4_2_funcs[] = { 4, };
583 static int mt7622_pwm_ch4_3_pins[] = { 98, };
584 static int mt7622_pwm_ch4_3_funcs[] = { 0, };
585 static int mt7622_pwm_ch5_0_pins[] = { 68, };
586 static int mt7622_pwm_ch5_0_funcs[] = { 3, };
587 static int mt7622_pwm_ch5_1_pins[] = { 77, };
588 static int mt7622_pwm_ch5_1_funcs[] = { 4, };
589 static int mt7622_pwm_ch5_2_pins[] = { 99, };
590 static int mt7622_pwm_ch5_2_funcs[] = { 0, };
591 static int mt7622_pwm_ch6_0_pins[] = { 69, };
592 static int mt7622_pwm_ch6_0_funcs[] = { 3, };
593 static int mt7622_pwm_ch6_1_pins[] = { 78, };
594 static int mt7622_pwm_ch6_1_funcs[] = { 4, };
595 static int mt7622_pwm_ch6_2_pins[] = { 81, };
596 static int mt7622_pwm_ch6_2_funcs[] = { 4, };
597 static int mt7622_pwm_ch6_3_pins[] = { 100, };
598 static int mt7622_pwm_ch6_3_funcs[] = { 0, };
599 static int mt7622_pwm_ch7_0_pins[] = { 70, };
600 static int mt7622_pwm_ch7_0_funcs[] = { 3, };
601 static int mt7622_pwm_ch7_1_pins[] = { 82, };
602 static int mt7622_pwm_ch7_1_funcs[] = { 4, };
603 static int mt7622_pwm_ch7_2_pins[] = { 101, };
604 static int mt7622_pwm_ch7_2_funcs[] = { 0, };
605
606 /* SD */
607 static int mt7622_sd_0_pins[] = { 16, 17, 18, 19, 20, 21, };
608 static int mt7622_sd_0_funcs[] = { 2, 2, 2, 2, 2, 2, };
609 static int mt7622_sd_1_pins[] = { 25, 26, 27, 28, 29, 30, };
610 static int mt7622_sd_1_funcs[] = { 2, 2, 2, 2, 2, 2, };
611
612 /* Serial NAND */
613 static int mt7622_snfi_pins[] = { 8, 9, 10, 11, 12, 13, };
614 static int mt7622_snfi_funcs[] = { 2, 2, 2, 2, 2, 2, };
615
616 /* SPI NOR */
617 static int mt7622_spi_pins[] = { 8, 9, 10, 11, 12, 13 };
618 static int mt7622_spi_funcs[] = { 0, 0, 0, 0, 0, 0, };
619
620 /* SPIC */
621 static int mt7622_spic0_0_pins[] = { 63, 64, 65, 66, };
622 static int mt7622_spic0_0_funcs[] = { 4, 4, 4, 4, };
623 static int mt7622_spic0_1_pins[] = { 79, 80, 81, 82, };
624 static int mt7622_spic0_1_funcs[] = { 3, 3, 3, 3, };
625 static int mt7622_spic1_0_pins[] = { 67, 68, 69, 70, };
626 static int mt7622_spic1_0_funcs[] = { 4, 4, 4, 4, };
627 static int mt7622_spic1_1_pins[] = { 73, 74, 75, 76, };
628 static int mt7622_spic1_1_funcs[] = { 0, 0, 0, 0, };
629 static int mt7622_spic2_0_pins[] = { 10, 11, 12, 13, };
630 static int mt7622_spic2_0_funcs[] = { 0, 0, 0, 0, };
631 static int mt7622_spic2_0_wp_hold_pins[] = { 8, 9, };
632 static int mt7622_spic2_0_wp_hold_funcs[] = { 0, 0, };
633
634 /* TDM */
635 static int mt7622_tdm_0_out_mclk_bclk_ws_pins[] = { 8, 9, 10, };
636 static int mt7622_tdm_0_out_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
637 static int mt7622_tdm_0_in_mclk_bclk_ws_pins[] = { 11, 12, 13, };
638 static int mt7622_tdm_0_in_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
639 static int mt7622_tdm_0_out_data_pins[] = { 20, };
640 static int mt7622_tdm_0_out_data_funcs[] = { 3, };
641 static int mt7622_tdm_0_in_data_pins[] = { 21, };
642 static int mt7622_tdm_0_in_data_funcs[] = { 3, };
643 static int mt7622_tdm_1_out_mclk_bclk_ws_pins[] = { 57, 58, 59, };
644 static int mt7622_tdm_1_out_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
645 static int mt7622_tdm_1_in_mclk_bclk_ws_pins[] = { 60, 61, 62, };
646 static int mt7622_tdm_1_in_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
647 static int mt7622_tdm_1_out_data_pins[] = { 55, };
648 static int mt7622_tdm_1_out_data_funcs[] = { 3, };
649 static int mt7622_tdm_1_in_data_pins[] = { 56, };
650 static int mt7622_tdm_1_in_data_funcs[] = { 3, };
651
652 /* UART */
653 static int mt7622_uart0_0_tx_rx_pins[] = { 6, 7, };
654 static int mt7622_uart0_0_tx_rx_funcs[] = { 0, 0, };
655 static int mt7622_uart1_0_tx_rx_pins[] = { 55, 56, };
656 static int mt7622_uart1_0_tx_rx_funcs[] = { 2, 2, };
657 static int mt7622_uart1_0_rts_cts_pins[] = { 57, 58, };
658 static int mt7622_uart1_0_rts_cts_funcs[] = { 2, 2, };
659 static int mt7622_uart1_1_tx_rx_pins[] = { 73, 74, };
660 static int mt7622_uart1_1_tx_rx_funcs[] = { 2, 2, };
661 static int mt7622_uart1_1_rts_cts_pins[] = { 75, 76, };
662 static int mt7622_uart1_1_rts_cts_funcs[] = { 2, 2, };
663 static int mt7622_uart2_0_tx_rx_pins[] = { 3, 4, };
664 static int mt7622_uart2_0_tx_rx_funcs[] = { 2, 2, };
665 static int mt7622_uart2_0_rts_cts_pins[] = { 1, 2, };
666 static int mt7622_uart2_0_rts_cts_funcs[] = { 2, 2, };
667 static int mt7622_uart2_1_tx_rx_pins[] = { 51, 52, };
668 static int mt7622_uart2_1_tx_rx_funcs[] = { 0, 0, };
669 static int mt7622_uart2_1_rts_cts_pins[] = { 53, 54, };
670 static int mt7622_uart2_1_rts_cts_funcs[] = { 0, 0, };
671 static int mt7622_uart2_2_tx_rx_pins[] = { 59, 60, };
672 static int mt7622_uart2_2_tx_rx_funcs[] = { 4, 4, };
673 static int mt7622_uart2_2_rts_cts_pins[] = { 61, 62, };
674 static int mt7622_uart2_2_rts_cts_funcs[] = { 4, 4, };
675 static int mt7622_uart2_3_tx_rx_pins[] = { 95, 96, };
676 static int mt7622_uart2_3_tx_rx_funcs[] = { 3, 3, };
677 static int mt7622_uart3_0_tx_rx_pins[] = { 57, 58, };
678 static int mt7622_uart3_0_tx_rx_funcs[] = { 5, 5, };
679 static int mt7622_uart3_1_tx_rx_pins[] = { 81, 82, };
680 static int mt7622_uart3_1_tx_rx_funcs[] = { 0, 0, };
681 static int mt7622_uart3_1_rts_cts_pins[] = { 79, 80, };
682 static int mt7622_uart3_1_rts_cts_funcs[] = { 0, 0, };
683 static int mt7622_uart4_0_tx_rx_pins[] = { 61, 62, };
684 static int mt7622_uart4_0_tx_rx_funcs[] = { 5, 5, };
685 static int mt7622_uart4_1_tx_rx_pins[] = { 91, 92, };
686 static int mt7622_uart4_1_tx_rx_funcs[] = { 0, 0, };
687 static int mt7622_uart4_1_rts_cts_pins[] = { 93, 94 };
688 static int mt7622_uart4_1_rts_cts_funcs[] = { 0, 0, };
689 static int mt7622_uart4_2_tx_rx_pins[] = { 97, 98, };
690 static int mt7622_uart4_2_tx_rx_funcs[] = { 2, 2, };
691 static int mt7622_uart4_2_rts_cts_pins[] = { 95, 96 };
692 static int mt7622_uart4_2_rts_cts_funcs[] = { 2, 2, };
693
694 /* Watchdog */
695 static int mt7622_watchdog_pins[] = { 78, };
696 static int mt7622_watchdog_funcs[] = { 0, };
697
698 /* WLAN LED */
699 static int mt7622_wled_pins[] = { 85, };
700 static int mt7622_wled_funcs[] = { 0, };
701
702 static const struct group_desc mt7622_groups[] = {
703 PINCTRL_PIN_GROUP("emmc", mt7622_emmc),
704 PINCTRL_PIN_GROUP("emmc_rst", mt7622_emmc_rst),
705 PINCTRL_PIN_GROUP("ephy_leds", mt7622_ephy_leds),
706 PINCTRL_PIN_GROUP("ephy0_led", mt7622_ephy0_led),
707 PINCTRL_PIN_GROUP("ephy1_led", mt7622_ephy1_led),
708 PINCTRL_PIN_GROUP("ephy2_led", mt7622_ephy2_led),
709 PINCTRL_PIN_GROUP("ephy3_led", mt7622_ephy3_led),
710 PINCTRL_PIN_GROUP("ephy4_led", mt7622_ephy4_led),
711 PINCTRL_PIN_GROUP("esw", mt7622_esw),
712 PINCTRL_PIN_GROUP("esw_p0_p1", mt7622_esw_p0_p1),
713 PINCTRL_PIN_GROUP("esw_p2_p3_p4", mt7622_esw_p2_p3_p4),
714 PINCTRL_PIN_GROUP("rgmii_via_esw", mt7622_rgmii_via_esw),
715 PINCTRL_PIN_GROUP("rgmii_via_gmac1", mt7622_rgmii_via_gmac1),
716 PINCTRL_PIN_GROUP("rgmii_via_gmac2", mt7622_rgmii_via_gmac2),
717 PINCTRL_PIN_GROUP("i2c0", mt7622_i2c0),
718 PINCTRL_PIN_GROUP("i2c1_0", mt7622_i2c1_0),
719 PINCTRL_PIN_GROUP("i2c1_1", mt7622_i2c1_1),
720 PINCTRL_PIN_GROUP("i2c1_2", mt7622_i2c1_2),
721 PINCTRL_PIN_GROUP("i2c2_0", mt7622_i2c2_0),
722 PINCTRL_PIN_GROUP("i2c2_1", mt7622_i2c2_1),
723 PINCTRL_PIN_GROUP("i2c2_2", mt7622_i2c2_2),
724 PINCTRL_PIN_GROUP("i2s_out_mclk_bclk_ws", mt7622_i2s_out_mclk_bclk_ws),
725 PINCTRL_PIN_GROUP("i2s_in_mclk_bclk_ws", mt7622_i2s_in_mclk_bclk_ws),
726 PINCTRL_PIN_GROUP("i2s1_in_data", mt7622_i2s1_in_data),
727 PINCTRL_PIN_GROUP("i2s2_in_data", mt7622_i2s2_in_data),
728 PINCTRL_PIN_GROUP("i2s3_in_data", mt7622_i2s3_in_data),
729 PINCTRL_PIN_GROUP("i2s4_in_data", mt7622_i2s4_in_data),
730 PINCTRL_PIN_GROUP("i2s1_out_data", mt7622_i2s1_out_data),
731 PINCTRL_PIN_GROUP("i2s2_out_data", mt7622_i2s2_out_data),
732 PINCTRL_PIN_GROUP("i2s3_out_data", mt7622_i2s3_out_data),
733 PINCTRL_PIN_GROUP("i2s4_out_data", mt7622_i2s4_out_data),
734 PINCTRL_PIN_GROUP("ir_0_tx", mt7622_ir_0_tx),
735 PINCTRL_PIN_GROUP("ir_1_tx", mt7622_ir_1_tx),
736 PINCTRL_PIN_GROUP("ir_2_tx", mt7622_ir_2_tx),
737 PINCTRL_PIN_GROUP("ir_0_rx", mt7622_ir_0_rx),
738 PINCTRL_PIN_GROUP("ir_1_rx", mt7622_ir_1_rx),
739 PINCTRL_PIN_GROUP("ir_2_rx", mt7622_ir_2_rx),
740 PINCTRL_PIN_GROUP("mdc_mdio", mt7622_mdc_mdio),
741 PINCTRL_PIN_GROUP("pcie0_0_waken", mt7622_pcie0_0_waken),
742 PINCTRL_PIN_GROUP("pcie0_0_clkreq", mt7622_pcie0_0_clkreq),
743 PINCTRL_PIN_GROUP("pcie0_1_waken", mt7622_pcie0_1_waken),
744 PINCTRL_PIN_GROUP("pcie0_1_clkreq", mt7622_pcie0_1_clkreq),
745 PINCTRL_PIN_GROUP("pcie1_0_waken", mt7622_pcie1_0_waken),
746 PINCTRL_PIN_GROUP("pcie1_0_clkreq", mt7622_pcie1_0_clkreq),
747 PINCTRL_PIN_GROUP("pcie0_pad_perst", mt7622_pcie0_pad_perst),
748 PINCTRL_PIN_GROUP("pcie1_pad_perst", mt7622_pcie1_pad_perst),
749 PINCTRL_PIN_GROUP("par_nand", mt7622_pnand),
750 PINCTRL_PIN_GROUP("pmic_bus", mt7622_pmic_bus),
751 PINCTRL_PIN_GROUP("pwm_ch1_0", mt7622_pwm_ch1_0),
752 PINCTRL_PIN_GROUP("pwm_ch1_1", mt7622_pwm_ch1_1),
753 PINCTRL_PIN_GROUP("pwm_ch1_2", mt7622_pwm_ch1_2),
754 PINCTRL_PIN_GROUP("pwm_ch2_0", mt7622_pwm_ch2_0),
755 PINCTRL_PIN_GROUP("pwm_ch2_1", mt7622_pwm_ch2_1),
756 PINCTRL_PIN_GROUP("pwm_ch2_2", mt7622_pwm_ch2_2),
757 PINCTRL_PIN_GROUP("pwm_ch3_0", mt7622_pwm_ch3_0),
758 PINCTRL_PIN_GROUP("pwm_ch3_1", mt7622_pwm_ch3_1),
759 PINCTRL_PIN_GROUP("pwm_ch3_2", mt7622_pwm_ch3_2),
760 PINCTRL_PIN_GROUP("pwm_ch4_0", mt7622_pwm_ch4_0),
761 PINCTRL_PIN_GROUP("pwm_ch4_1", mt7622_pwm_ch4_1),
762 PINCTRL_PIN_GROUP("pwm_ch4_2", mt7622_pwm_ch4_2),
763 PINCTRL_PIN_GROUP("pwm_ch4_3", mt7622_pwm_ch4_3),
764 PINCTRL_PIN_GROUP("pwm_ch5_0", mt7622_pwm_ch5_0),
765 PINCTRL_PIN_GROUP("pwm_ch5_1", mt7622_pwm_ch5_1),
766 PINCTRL_PIN_GROUP("pwm_ch5_2", mt7622_pwm_ch5_2),
767 PINCTRL_PIN_GROUP("pwm_ch6_0", mt7622_pwm_ch6_0),
768 PINCTRL_PIN_GROUP("pwm_ch6_1", mt7622_pwm_ch6_1),
769 PINCTRL_PIN_GROUP("pwm_ch6_2", mt7622_pwm_ch6_2),
770 PINCTRL_PIN_GROUP("pwm_ch6_3", mt7622_pwm_ch6_3),
771 PINCTRL_PIN_GROUP("pwm_ch7_0", mt7622_pwm_ch7_0),
772 PINCTRL_PIN_GROUP("pwm_ch7_1", mt7622_pwm_ch7_1),
773 PINCTRL_PIN_GROUP("pwm_ch7_2", mt7622_pwm_ch7_2),
774 PINCTRL_PIN_GROUP("sd_0", mt7622_sd_0),
775 PINCTRL_PIN_GROUP("sd_1", mt7622_sd_1),
776 PINCTRL_PIN_GROUP("snfi", mt7622_snfi),
777 PINCTRL_PIN_GROUP("spi_nor", mt7622_spi),
778 PINCTRL_PIN_GROUP("spic0_0", mt7622_spic0_0),
779 PINCTRL_PIN_GROUP("spic0_1", mt7622_spic0_1),
780 PINCTRL_PIN_GROUP("spic1_0", mt7622_spic1_0),
781 PINCTRL_PIN_GROUP("spic1_1", mt7622_spic1_1),
782 PINCTRL_PIN_GROUP("spic2_0", mt7622_spic2_0),
783 PINCTRL_PIN_GROUP("spic2_0_wp_hold", mt7622_spic2_0_wp_hold),
784 PINCTRL_PIN_GROUP("tdm_0_out_mclk_bclk_ws",
785 mt7622_tdm_0_out_mclk_bclk_ws),
786 PINCTRL_PIN_GROUP("tdm_0_in_mclk_bclk_ws",
787 mt7622_tdm_0_in_mclk_bclk_ws),
788 PINCTRL_PIN_GROUP("tdm_0_out_data", mt7622_tdm_0_out_data),
789 PINCTRL_PIN_GROUP("tdm_0_in_data", mt7622_tdm_0_in_data),
790 PINCTRL_PIN_GROUP("tdm_1_out_mclk_bclk_ws",
791 mt7622_tdm_1_out_mclk_bclk_ws),
792 PINCTRL_PIN_GROUP("tdm_1_in_mclk_bclk_ws",
793 mt7622_tdm_1_in_mclk_bclk_ws),
794 PINCTRL_PIN_GROUP("tdm_1_out_data", mt7622_tdm_1_out_data),
795 PINCTRL_PIN_GROUP("tdm_1_in_data", mt7622_tdm_1_in_data),
796 PINCTRL_PIN_GROUP("uart0_0_tx_rx", mt7622_uart0_0_tx_rx),
797 PINCTRL_PIN_GROUP("uart1_0_tx_rx", mt7622_uart1_0_tx_rx),
798 PINCTRL_PIN_GROUP("uart1_0_rts_cts", mt7622_uart1_0_rts_cts),
799 PINCTRL_PIN_GROUP("uart1_1_tx_rx", mt7622_uart1_1_tx_rx),
800 PINCTRL_PIN_GROUP("uart1_1_rts_cts", mt7622_uart1_1_rts_cts),
801 PINCTRL_PIN_GROUP("uart2_0_tx_rx", mt7622_uart2_0_tx_rx),
802 PINCTRL_PIN_GROUP("uart2_0_rts_cts", mt7622_uart2_0_rts_cts),
803 PINCTRL_PIN_GROUP("uart2_1_tx_rx", mt7622_uart2_1_tx_rx),
804 PINCTRL_PIN_GROUP("uart2_1_rts_cts", mt7622_uart2_1_rts_cts),
805 PINCTRL_PIN_GROUP("uart2_2_tx_rx", mt7622_uart2_2_tx_rx),
806 PINCTRL_PIN_GROUP("uart2_2_rts_cts", mt7622_uart2_2_rts_cts),
807 PINCTRL_PIN_GROUP("uart2_3_tx_rx", mt7622_uart2_3_tx_rx),
808 PINCTRL_PIN_GROUP("uart3_0_tx_rx", mt7622_uart3_0_tx_rx),
809 PINCTRL_PIN_GROUP("uart3_1_tx_rx", mt7622_uart3_1_tx_rx),
810 PINCTRL_PIN_GROUP("uart3_1_rts_cts", mt7622_uart3_1_rts_cts),
811 PINCTRL_PIN_GROUP("uart4_0_tx_rx", mt7622_uart4_0_tx_rx),
812 PINCTRL_PIN_GROUP("uart4_1_tx_rx", mt7622_uart4_1_tx_rx),
813 PINCTRL_PIN_GROUP("uart4_1_rts_cts", mt7622_uart4_1_rts_cts),
814 PINCTRL_PIN_GROUP("uart4_2_tx_rx", mt7622_uart4_2_tx_rx),
815 PINCTRL_PIN_GROUP("uart4_2_rts_cts", mt7622_uart4_2_rts_cts),
816 PINCTRL_PIN_GROUP("watchdog", mt7622_watchdog),
817 PINCTRL_PIN_GROUP("wled", mt7622_wled),
818 };
819
820 /* Joint those groups owning the same capability in user point of view which
821 * allows that people tend to use through the device tree.
822 */
823 static const char *mt7622_emmc_groups[] = { "emmc", "emmc_rst", };
824 static const char *mt7622_ethernet_groups[] = { "esw", "esw_p0_p1",
825 "esw_p2_p3_p4", "mdc_mdio",
826 "rgmii_via_gmac1",
827 "rgmii_via_gmac2",
828 "rgmii_via_esw", };
829 static const char *mt7622_i2c_groups[] = { "i2c0", "i2c1_0", "i2c1_1",
830 "i2c1_2", "i2c2_0", "i2c2_1",
831 "i2c2_2", };
832 static const char *mt7622_i2s_groups[] = { "i2s_out_mclk_bclk_ws",
833 "i2s_in_mclk_bclk_ws",
834 "i2s1_in_data", "i2s2_in_data",
835 "i2s3_in_data", "i2s4_in_data",
836 "i2s1_out_data", "i2s2_out_data",
837 "i2s3_out_data", "i2s4_out_data", };
838 static const char *mt7622_ir_groups[] = { "ir_0_tx", "ir_1_tx", "ir_2_tx",
839 "ir_0_rx", "ir_1_rx", "ir_2_rx"};
840 static const char *mt7622_led_groups[] = { "ephy_leds", "ephy0_led",
841 "ephy1_led", "ephy2_led",
842 "ephy3_led", "ephy4_led",
843 "wled", };
844 static const char *mt7622_flash_groups[] = { "par_nand", "snfi", "spi_nor"};
845 static const char *mt7622_pcie_groups[] = { "pcie0_0_waken", "pcie0_0_clkreq",
846 "pcie0_1_waken", "pcie0_1_clkreq",
847 "pcie1_0_waken", "pcie1_0_clkreq",
848 "pcie0_pad_perst",
849 "pcie1_pad_perst", };
850 static const char *mt7622_pmic_bus_groups[] = { "pmic_bus", };
851 static const char *mt7622_pwm_groups[] = { "pwm_ch1_0", "pwm_ch1_1",
852 "pwm_ch1_2", "pwm_ch2_0",
853 "pwm_ch2_1", "pwm_ch2_2",
854 "pwm_ch3_0", "pwm_ch3_1",
855 "pwm_ch3_2", "pwm_ch4_0",
856 "pwm_ch4_1", "pwm_ch4_2",
857 "pwm_ch4_3", "pwm_ch5_0",
858 "pwm_ch5_1", "pwm_ch5_2",
859 "pwm_ch6_0", "pwm_ch6_1",
860 "pwm_ch6_2", "pwm_ch6_3",
861 "pwm_ch7_0", "pwm_ch7_1",
862 "pwm_ch7_2", };
863 static const char *mt7622_sd_groups[] = { "sd_0", "sd_1", };
864 static const char *mt7622_spic_groups[] = { "spic0_0", "spic0_1", "spic1_0",
865 "spic1_1", "spic2_0",
866 "spic2_0_wp_hold", };
867 static const char *mt7622_tdm_groups[] = { "tdm_0_out_mclk_bclk_ws",
868 "tdm_0_in_mclk_bclk_ws",
869 "tdm_0_out_data",
870 "tdm_0_in_data",
871 "tdm_1_out_mclk_bclk_ws",
872 "tdm_1_in_mclk_bclk_ws",
873 "tdm_1_out_data",
874 "tdm_1_in_data", };
875
876 static const char *mt7622_uart_groups[] = { "uart0_0_tx_rx",
877 "uart1_0_tx_rx", "uart1_0_rts_cts",
878 "uart1_1_tx_rx", "uart1_1_rts_cts",
879 "uart2_0_tx_rx", "uart2_0_rts_cts",
880 "uart2_1_tx_rx", "uart2_1_rts_cts",
881 "uart2_2_tx_rx", "uart2_2_rts_cts",
882 "uart2_3_tx_rx",
883 "uart3_0_tx_rx",
884 "uart3_1_tx_rx", "uart3_1_rts_cts",
885 "uart4_0_tx_rx",
886 "uart4_1_tx_rx", "uart4_1_rts_cts",
887 "uart4_2_tx_rx",
888 "uart4_2_rts_cts",};
889 static const char *mt7622_wdt_groups[] = { "watchdog", };
890
891 static const struct function_desc mt7622_functions[] = {
892 {"emmc", mt7622_emmc_groups, ARRAY_SIZE(mt7622_emmc_groups)},
893 {"eth", mt7622_ethernet_groups, ARRAY_SIZE(mt7622_ethernet_groups)},
894 {"i2c", mt7622_i2c_groups, ARRAY_SIZE(mt7622_i2c_groups)},
895 {"i2s", mt7622_i2s_groups, ARRAY_SIZE(mt7622_i2s_groups)},
896 {"ir", mt7622_ir_groups, ARRAY_SIZE(mt7622_ir_groups)},
897 {"led", mt7622_led_groups, ARRAY_SIZE(mt7622_led_groups)},
898 {"flash", mt7622_flash_groups, ARRAY_SIZE(mt7622_flash_groups)},
899 {"pcie", mt7622_pcie_groups, ARRAY_SIZE(mt7622_pcie_groups)},
900 {"pmic", mt7622_pmic_bus_groups, ARRAY_SIZE(mt7622_pmic_bus_groups)},
901 {"pwm", mt7622_pwm_groups, ARRAY_SIZE(mt7622_pwm_groups)},
902 {"sd", mt7622_sd_groups, ARRAY_SIZE(mt7622_sd_groups)},
903 {"spi", mt7622_spic_groups, ARRAY_SIZE(mt7622_spic_groups)},
904 {"tdm", mt7622_tdm_groups, ARRAY_SIZE(mt7622_tdm_groups)},
905 {"uart", mt7622_uart_groups, ARRAY_SIZE(mt7622_uart_groups)},
906 {"watchdog", mt7622_wdt_groups, ARRAY_SIZE(mt7622_wdt_groups)},
907 };
908
909 static const struct pinconf_generic_params mtk_custom_bindings[] = {
910 {"mediatek,tdsel", MTK_PIN_CONFIG_TDSEL, 0},
911 {"mediatek,rdsel", MTK_PIN_CONFIG_RDSEL, 0},
912 };
913
914 #ifdef CONFIG_DEBUG_FS
915 static const struct pin_config_item mtk_conf_items[] = {
916 PCONFDUMP(MTK_PIN_CONFIG_TDSEL, "tdsel", NULL, true),
917 PCONFDUMP(MTK_PIN_CONFIG_RDSEL, "rdsel", NULL, true),
918 };
919 #endif
920
921 static const struct mtk_eint_hw mt7622_eint_hw = {
922 .port_mask = 7,
923 .ports = 7,
924 .ap_num = ARRAY_SIZE(mt7622_pins),
925 .db_cnt = 20,
926 };
927
928 static const struct mtk_pin_soc mt7622_data = {
929 .reg_cal = mt7622_reg_cals,
930 .pins = mt7622_pins,
931 .npins = ARRAY_SIZE(mt7622_pins),
932 .grps = mt7622_groups,
933 .ngrps = ARRAY_SIZE(mt7622_groups),
934 .funcs = mt7622_functions,
935 .nfuncs = ARRAY_SIZE(mt7622_functions),
936 .eint_hw = &mt7622_eint_hw,
937 };
938
mtk_w32(struct mtk_pinctrl * pctl,u32 reg,u32 val)939 static void mtk_w32(struct mtk_pinctrl *pctl, u32 reg, u32 val)
940 {
941 writel_relaxed(val, pctl->base + reg);
942 }
943
mtk_r32(struct mtk_pinctrl * pctl,u32 reg)944 static u32 mtk_r32(struct mtk_pinctrl *pctl, u32 reg)
945 {
946 return readl_relaxed(pctl->base + reg);
947 }
948
mtk_rmw(struct mtk_pinctrl * pctl,u32 reg,u32 mask,u32 set)949 static void mtk_rmw(struct mtk_pinctrl *pctl, u32 reg, u32 mask, u32 set)
950 {
951 u32 val;
952
953 val = mtk_r32(pctl, reg);
954 val &= ~mask;
955 val |= set;
956 mtk_w32(pctl, reg, val);
957 }
958
mtk_hw_pin_field_lookup(struct mtk_pinctrl * hw,int pin,const struct mtk_pin_reg_calc * rc,struct mtk_pin_field * pfd)959 static int mtk_hw_pin_field_lookup(struct mtk_pinctrl *hw, int pin,
960 const struct mtk_pin_reg_calc *rc,
961 struct mtk_pin_field *pfd)
962 {
963 const struct mtk_pin_field_calc *c, *e;
964 u32 bits;
965
966 c = rc->range;
967 e = c + rc->nranges;
968
969 while (c < e) {
970 if (pin >= c->s_pin && pin <= c->e_pin)
971 break;
972 c++;
973 }
974
975 if (c >= e) {
976 dev_err(hw->dev, "Out of range for pin = %d\n", pin);
977 return -EINVAL;
978 }
979
980 /* Caculated bits as the overall offset the pin is located at */
981 bits = c->s_bit + (pin - c->s_pin) * (c->x_bits);
982
983 /* Fill pfd from bits and 32-bit register applied is assumed */
984 pfd->offset = c->s_addr + c->x_addrs * (bits / 32);
985 pfd->bitpos = bits % 32;
986 pfd->mask = (1 << c->x_bits) - 1;
987
988 /* pfd->next is used for indicating that bit wrapping-around happens
989 * which requires the manipulation for bit 0 starting in the next
990 * register to form the complete field read/write.
991 */
992 pfd->next = pfd->bitpos + c->x_bits - 1 > 31 ? c->x_addrs : 0;
993
994 return 0;
995 }
996
mtk_hw_pin_field_get(struct mtk_pinctrl * hw,int pin,int field,struct mtk_pin_field * pfd)997 static int mtk_hw_pin_field_get(struct mtk_pinctrl *hw, int pin,
998 int field, struct mtk_pin_field *pfd)
999 {
1000 const struct mtk_pin_reg_calc *rc;
1001
1002 if (field < 0 || field >= PINCTRL_PIN_REG_MAX) {
1003 dev_err(hw->dev, "Invalid Field %d\n", field);
1004 return -EINVAL;
1005 }
1006
1007 if (hw->soc->reg_cal && hw->soc->reg_cal[field].range) {
1008 rc = &hw->soc->reg_cal[field];
1009 } else {
1010 dev_err(hw->dev, "Undefined range for field %d\n", field);
1011 return -EINVAL;
1012 }
1013
1014 return mtk_hw_pin_field_lookup(hw, pin, rc, pfd);
1015 }
1016
mtk_hw_bits_part(struct mtk_pin_field * pf,int * h,int * l)1017 static void mtk_hw_bits_part(struct mtk_pin_field *pf, int *h, int *l)
1018 {
1019 *l = 32 - pf->bitpos;
1020 *h = get_count_order(pf->mask) - *l;
1021 }
1022
mtk_hw_write_cross_field(struct mtk_pinctrl * hw,struct mtk_pin_field * pf,int value)1023 static void mtk_hw_write_cross_field(struct mtk_pinctrl *hw,
1024 struct mtk_pin_field *pf, int value)
1025 {
1026 int nbits_l, nbits_h;
1027
1028 mtk_hw_bits_part(pf, &nbits_h, &nbits_l);
1029
1030 mtk_rmw(hw, pf->offset, pf->mask << pf->bitpos,
1031 (value & pf->mask) << pf->bitpos);
1032
1033 mtk_rmw(hw, pf->offset + pf->next, BIT(nbits_h) - 1,
1034 (value & pf->mask) >> nbits_l);
1035 }
1036
mtk_hw_read_cross_field(struct mtk_pinctrl * hw,struct mtk_pin_field * pf,int * value)1037 static void mtk_hw_read_cross_field(struct mtk_pinctrl *hw,
1038 struct mtk_pin_field *pf, int *value)
1039 {
1040 int nbits_l, nbits_h, h, l;
1041
1042 mtk_hw_bits_part(pf, &nbits_h, &nbits_l);
1043
1044 l = (mtk_r32(hw, pf->offset) >> pf->bitpos) & (BIT(nbits_l) - 1);
1045 h = (mtk_r32(hw, pf->offset + pf->next)) & (BIT(nbits_h) - 1);
1046
1047 *value = (h << nbits_l) | l;
1048 }
1049
mtk_hw_set_value(struct mtk_pinctrl * hw,int pin,int field,int value)1050 static int mtk_hw_set_value(struct mtk_pinctrl *hw, int pin, int field,
1051 int value)
1052 {
1053 struct mtk_pin_field pf;
1054 int err;
1055
1056 err = mtk_hw_pin_field_get(hw, pin, field, &pf);
1057 if (err)
1058 return err;
1059
1060 if (!pf.next)
1061 mtk_rmw(hw, pf.offset, pf.mask << pf.bitpos,
1062 (value & pf.mask) << pf.bitpos);
1063 else
1064 mtk_hw_write_cross_field(hw, &pf, value);
1065
1066 return 0;
1067 }
1068
mtk_hw_get_value(struct mtk_pinctrl * hw,int pin,int field,int * value)1069 static int mtk_hw_get_value(struct mtk_pinctrl *hw, int pin, int field,
1070 int *value)
1071 {
1072 struct mtk_pin_field pf;
1073 int err;
1074
1075 err = mtk_hw_pin_field_get(hw, pin, field, &pf);
1076 if (err)
1077 return err;
1078
1079 if (!pf.next)
1080 *value = (mtk_r32(hw, pf.offset) >> pf.bitpos) & pf.mask;
1081 else
1082 mtk_hw_read_cross_field(hw, &pf, value);
1083
1084 return 0;
1085 }
1086
mtk_pinmux_set_mux(struct pinctrl_dev * pctldev,unsigned int selector,unsigned int group)1087 static int mtk_pinmux_set_mux(struct pinctrl_dev *pctldev,
1088 unsigned int selector, unsigned int group)
1089 {
1090 struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
1091 struct function_desc *func;
1092 struct group_desc *grp;
1093 int i;
1094
1095 func = pinmux_generic_get_function(pctldev, selector);
1096 if (!func)
1097 return -EINVAL;
1098
1099 grp = pinctrl_generic_get_group(pctldev, group);
1100 if (!grp)
1101 return -EINVAL;
1102
1103 dev_dbg(pctldev->dev, "enable function %s group %s\n",
1104 func->name, grp->name);
1105
1106 for (i = 0; i < grp->num_pins; i++) {
1107 int *pin_modes = grp->data;
1108
1109 mtk_hw_set_value(hw, grp->pins[i], PINCTRL_PIN_REG_MODE,
1110 pin_modes[i]);
1111 }
1112
1113 return 0;
1114 }
1115
mtk_pinmux_gpio_request_enable(struct pinctrl_dev * pctldev,struct pinctrl_gpio_range * range,unsigned int pin)1116 static int mtk_pinmux_gpio_request_enable(struct pinctrl_dev *pctldev,
1117 struct pinctrl_gpio_range *range,
1118 unsigned int pin)
1119 {
1120 struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
1121
1122 return mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_MODE, MTK_GPIO_MODE);
1123 }
1124
mtk_pinmux_gpio_set_direction(struct pinctrl_dev * pctldev,struct pinctrl_gpio_range * range,unsigned int pin,bool input)1125 static int mtk_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
1126 struct pinctrl_gpio_range *range,
1127 unsigned int pin, bool input)
1128 {
1129 struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
1130
1131 /* hardware would take 0 as input direction */
1132 return mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_DIR, !input);
1133 }
1134
mtk_pinconf_get(struct pinctrl_dev * pctldev,unsigned int pin,unsigned long * config)1135 static int mtk_pinconf_get(struct pinctrl_dev *pctldev,
1136 unsigned int pin, unsigned long *config)
1137 {
1138 struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
1139 u32 param = pinconf_to_config_param(*config);
1140 int val, val2, err, reg, ret = 1;
1141
1142 switch (param) {
1143 case PIN_CONFIG_BIAS_DISABLE:
1144 err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_PU, &val);
1145 if (err)
1146 return err;
1147
1148 err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_PD, &val2);
1149 if (err)
1150 return err;
1151
1152 if (val || val2)
1153 return -EINVAL;
1154
1155 break;
1156 case PIN_CONFIG_BIAS_PULL_UP:
1157 case PIN_CONFIG_BIAS_PULL_DOWN:
1158 case PIN_CONFIG_SLEW_RATE:
1159 reg = (param == PIN_CONFIG_BIAS_PULL_UP) ?
1160 PINCTRL_PIN_REG_PU :
1161 (param == PIN_CONFIG_BIAS_PULL_DOWN) ?
1162 PINCTRL_PIN_REG_PD : PINCTRL_PIN_REG_SR;
1163
1164 err = mtk_hw_get_value(hw, pin, reg, &val);
1165 if (err)
1166 return err;
1167
1168 if (!val)
1169 return -EINVAL;
1170
1171 break;
1172 case PIN_CONFIG_INPUT_ENABLE:
1173 case PIN_CONFIG_OUTPUT_ENABLE:
1174 err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_DIR, &val);
1175 if (err)
1176 return err;
1177
1178 /* HW takes input mode as zero; output mode as non-zero */
1179 if ((val && param == PIN_CONFIG_INPUT_ENABLE) ||
1180 (!val && param == PIN_CONFIG_OUTPUT_ENABLE))
1181 return -EINVAL;
1182
1183 break;
1184 case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
1185 err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_DIR, &val);
1186 if (err)
1187 return err;
1188
1189 err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_SMT, &val2);
1190 if (err)
1191 return err;
1192
1193 if (val || !val2)
1194 return -EINVAL;
1195
1196 break;
1197 case PIN_CONFIG_DRIVE_STRENGTH:
1198 err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_E4, &val);
1199 if (err)
1200 return err;
1201
1202 err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_E8, &val2);
1203 if (err)
1204 return err;
1205
1206 /* 4mA when (e8, e4) = (0, 0); 8mA when (e8, e4) = (0, 1)
1207 * 12mA when (e8, e4) = (1, 0); 16mA when (e8, e4) = (1, 1)
1208 */
1209 ret = ((val2 << 1) + val + 1) * 4;
1210
1211 break;
1212 case MTK_PIN_CONFIG_TDSEL:
1213 case MTK_PIN_CONFIG_RDSEL:
1214 reg = (param == MTK_PIN_CONFIG_TDSEL) ?
1215 PINCTRL_PIN_REG_TDSEL : PINCTRL_PIN_REG_RDSEL;
1216
1217 err = mtk_hw_get_value(hw, pin, reg, &val);
1218 if (err)
1219 return err;
1220
1221 ret = val;
1222
1223 break;
1224 default:
1225 return -ENOTSUPP;
1226 }
1227
1228 *config = pinconf_to_config_packed(param, ret);
1229
1230 return 0;
1231 }
1232
mtk_pinconf_set(struct pinctrl_dev * pctldev,unsigned int pin,unsigned long * configs,unsigned int num_configs)1233 static int mtk_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
1234 unsigned long *configs, unsigned int num_configs)
1235 {
1236 struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
1237 u32 reg, param, arg;
1238 int cfg, err = 0;
1239
1240 for (cfg = 0; cfg < num_configs; cfg++) {
1241 param = pinconf_to_config_param(configs[cfg]);
1242 arg = pinconf_to_config_argument(configs[cfg]);
1243
1244 switch (param) {
1245 case PIN_CONFIG_BIAS_DISABLE:
1246 case PIN_CONFIG_BIAS_PULL_UP:
1247 case PIN_CONFIG_BIAS_PULL_DOWN:
1248 arg = (param == PIN_CONFIG_BIAS_DISABLE) ? 0 :
1249 (param == PIN_CONFIG_BIAS_PULL_UP) ? 1 : 2;
1250
1251 err = mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_PU,
1252 arg & 1);
1253 if (err)
1254 goto err;
1255
1256 err = mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_PD,
1257 !!(arg & 2));
1258 if (err)
1259 goto err;
1260 break;
1261 case PIN_CONFIG_OUTPUT_ENABLE:
1262 err = mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_SMT,
1263 MTK_DISABLE);
1264 if (err)
1265 goto err;
1266 /* else: fall through */
1267 case PIN_CONFIG_INPUT_ENABLE:
1268 case PIN_CONFIG_SLEW_RATE:
1269 reg = (param == PIN_CONFIG_SLEW_RATE) ?
1270 PINCTRL_PIN_REG_SR : PINCTRL_PIN_REG_DIR;
1271
1272 arg = (param == PIN_CONFIG_INPUT_ENABLE) ? 0 :
1273 (param == PIN_CONFIG_OUTPUT_ENABLE) ? 1 : arg;
1274 err = mtk_hw_set_value(hw, pin, reg, arg);
1275 if (err)
1276 goto err;
1277
1278 break;
1279 case PIN_CONFIG_OUTPUT:
1280 err = mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_DIR,
1281 MTK_OUTPUT);
1282 if (err)
1283 goto err;
1284
1285 err = mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_DO,
1286 arg);
1287 if (err)
1288 goto err;
1289 break;
1290 case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
1291 /* arg = 1: Input mode & SMT enable ;
1292 * arg = 0: Output mode & SMT disable
1293 */
1294 arg = arg ? 2 : 1;
1295 err = mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_DIR,
1296 arg & 1);
1297 if (err)
1298 goto err;
1299
1300 err = mtk_hw_set_value(hw, pin, PINCTRL_PIN_REG_SMT,
1301 !!(arg & 2));
1302 if (err)
1303 goto err;
1304 break;
1305 case PIN_CONFIG_DRIVE_STRENGTH:
1306 /* 4mA when (e8, e4) = (0, 0);
1307 * 8mA when (e8, e4) = (0, 1);
1308 * 12mA when (e8, e4) = (1, 0);
1309 * 16mA when (e8, e4) = (1, 1)
1310 */
1311 if (!(arg % 4) && (arg >= 4 && arg <= 16)) {
1312 arg = arg / 4 - 1;
1313 err = mtk_hw_set_value(hw, pin,
1314 PINCTRL_PIN_REG_E4,
1315 arg & 0x1);
1316 if (err)
1317 goto err;
1318
1319 err = mtk_hw_set_value(hw, pin,
1320 PINCTRL_PIN_REG_E8,
1321 (arg & 0x2) >> 1);
1322 if (err)
1323 goto err;
1324 } else {
1325 err = -ENOTSUPP;
1326 }
1327 break;
1328 case MTK_PIN_CONFIG_TDSEL:
1329 case MTK_PIN_CONFIG_RDSEL:
1330 reg = (param == MTK_PIN_CONFIG_TDSEL) ?
1331 PINCTRL_PIN_REG_TDSEL : PINCTRL_PIN_REG_RDSEL;
1332
1333 err = mtk_hw_set_value(hw, pin, reg, arg);
1334 if (err)
1335 goto err;
1336 break;
1337 default:
1338 err = -ENOTSUPP;
1339 }
1340 }
1341 err:
1342 return err;
1343 }
1344
mtk_pinconf_group_get(struct pinctrl_dev * pctldev,unsigned int group,unsigned long * config)1345 static int mtk_pinconf_group_get(struct pinctrl_dev *pctldev,
1346 unsigned int group, unsigned long *config)
1347 {
1348 const unsigned int *pins;
1349 unsigned int i, npins, old = 0;
1350 int ret;
1351
1352 ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins);
1353 if (ret)
1354 return ret;
1355
1356 for (i = 0; i < npins; i++) {
1357 if (mtk_pinconf_get(pctldev, pins[i], config))
1358 return -ENOTSUPP;
1359
1360 /* configs do not match between two pins */
1361 if (i && old != *config)
1362 return -ENOTSUPP;
1363
1364 old = *config;
1365 }
1366
1367 return 0;
1368 }
1369
mtk_pinconf_group_set(struct pinctrl_dev * pctldev,unsigned int group,unsigned long * configs,unsigned int num_configs)1370 static int mtk_pinconf_group_set(struct pinctrl_dev *pctldev,
1371 unsigned int group, unsigned long *configs,
1372 unsigned int num_configs)
1373 {
1374 const unsigned int *pins;
1375 unsigned int i, npins;
1376 int ret;
1377
1378 ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins);
1379 if (ret)
1380 return ret;
1381
1382 for (i = 0; i < npins; i++) {
1383 ret = mtk_pinconf_set(pctldev, pins[i], configs, num_configs);
1384 if (ret)
1385 return ret;
1386 }
1387
1388 return 0;
1389 }
1390
1391 static const struct pinctrl_ops mtk_pctlops = {
1392 .get_groups_count = pinctrl_generic_get_group_count,
1393 .get_group_name = pinctrl_generic_get_group_name,
1394 .get_group_pins = pinctrl_generic_get_group_pins,
1395 .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
1396 .dt_free_map = pinconf_generic_dt_free_map,
1397 };
1398
1399 static const struct pinmux_ops mtk_pmxops = {
1400 .get_functions_count = pinmux_generic_get_function_count,
1401 .get_function_name = pinmux_generic_get_function_name,
1402 .get_function_groups = pinmux_generic_get_function_groups,
1403 .set_mux = mtk_pinmux_set_mux,
1404 .gpio_request_enable = mtk_pinmux_gpio_request_enable,
1405 .gpio_set_direction = mtk_pinmux_gpio_set_direction,
1406 .strict = true,
1407 };
1408
1409 static const struct pinconf_ops mtk_confops = {
1410 .is_generic = true,
1411 .pin_config_get = mtk_pinconf_get,
1412 .pin_config_set = mtk_pinconf_set,
1413 .pin_config_group_get = mtk_pinconf_group_get,
1414 .pin_config_group_set = mtk_pinconf_group_set,
1415 .pin_config_config_dbg_show = pinconf_generic_dump_config,
1416 };
1417
1418 static struct pinctrl_desc mtk_desc = {
1419 .name = PINCTRL_PINCTRL_DEV,
1420 .pctlops = &mtk_pctlops,
1421 .pmxops = &mtk_pmxops,
1422 .confops = &mtk_confops,
1423 .owner = THIS_MODULE,
1424 };
1425
mtk_gpio_get(struct gpio_chip * chip,unsigned int gpio)1426 static int mtk_gpio_get(struct gpio_chip *chip, unsigned int gpio)
1427 {
1428 struct mtk_pinctrl *hw = gpiochip_get_data(chip);
1429 int value, err;
1430
1431 err = mtk_hw_get_value(hw, gpio, PINCTRL_PIN_REG_DI, &value);
1432 if (err)
1433 return err;
1434
1435 return !!value;
1436 }
1437
mtk_gpio_set(struct gpio_chip * chip,unsigned int gpio,int value)1438 static void mtk_gpio_set(struct gpio_chip *chip, unsigned int gpio, int value)
1439 {
1440 struct mtk_pinctrl *hw = gpiochip_get_data(chip);
1441
1442 mtk_hw_set_value(hw, gpio, PINCTRL_PIN_REG_DO, !!value);
1443 }
1444
mtk_gpio_direction_input(struct gpio_chip * chip,unsigned int gpio)1445 static int mtk_gpio_direction_input(struct gpio_chip *chip, unsigned int gpio)
1446 {
1447 return pinctrl_gpio_direction_input(chip->base + gpio);
1448 }
1449
mtk_gpio_direction_output(struct gpio_chip * chip,unsigned int gpio,int value)1450 static int mtk_gpio_direction_output(struct gpio_chip *chip, unsigned int gpio,
1451 int value)
1452 {
1453 mtk_gpio_set(chip, gpio, value);
1454
1455 return pinctrl_gpio_direction_output(chip->base + gpio);
1456 }
1457
mtk_gpio_to_irq(struct gpio_chip * chip,unsigned int offset)1458 static int mtk_gpio_to_irq(struct gpio_chip *chip, unsigned int offset)
1459 {
1460 struct mtk_pinctrl *hw = gpiochip_get_data(chip);
1461 unsigned long eint_n;
1462
1463 if (!hw->eint)
1464 return -ENOTSUPP;
1465
1466 eint_n = offset;
1467
1468 return mtk_eint_find_irq(hw->eint, eint_n);
1469 }
1470
mtk_gpio_set_config(struct gpio_chip * chip,unsigned int offset,unsigned long config)1471 static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
1472 unsigned long config)
1473 {
1474 struct mtk_pinctrl *hw = gpiochip_get_data(chip);
1475 unsigned long eint_n;
1476 u32 debounce;
1477
1478 if (!hw->eint ||
1479 pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
1480 return -ENOTSUPP;
1481
1482 debounce = pinconf_to_config_argument(config);
1483 eint_n = offset;
1484
1485 return mtk_eint_set_debounce(hw->eint, eint_n, debounce);
1486 }
1487
mtk_build_gpiochip(struct mtk_pinctrl * hw,struct device_node * np)1488 static int mtk_build_gpiochip(struct mtk_pinctrl *hw, struct device_node *np)
1489 {
1490 struct gpio_chip *chip = &hw->chip;
1491 int ret;
1492
1493 chip->label = PINCTRL_PINCTRL_DEV;
1494 chip->parent = hw->dev;
1495 chip->request = gpiochip_generic_request;
1496 chip->free = gpiochip_generic_free;
1497 chip->direction_input = mtk_gpio_direction_input;
1498 chip->direction_output = mtk_gpio_direction_output;
1499 chip->get = mtk_gpio_get;
1500 chip->set = mtk_gpio_set;
1501 chip->to_irq = mtk_gpio_to_irq,
1502 chip->set_config = mtk_gpio_set_config,
1503 chip->base = -1;
1504 chip->ngpio = hw->soc->npins;
1505 chip->of_node = np;
1506 chip->of_gpio_n_cells = 2;
1507
1508 ret = gpiochip_add_data(chip, hw);
1509 if (ret < 0)
1510 return ret;
1511
1512 /* Just for backward compatible for these old pinctrl nodes without
1513 * "gpio-ranges" property. Otherwise, called directly from a
1514 * DeviceTree-supported pinctrl driver is DEPRECATED.
1515 * Please see Section 2.1 of
1516 * Documentation/devicetree/bindings/gpio/gpio.txt on how to
1517 * bind pinctrl and gpio drivers via the "gpio-ranges" property.
1518 */
1519 if (!of_find_property(np, "gpio-ranges", NULL)) {
1520 ret = gpiochip_add_pin_range(chip, dev_name(hw->dev), 0, 0,
1521 chip->ngpio);
1522 if (ret < 0) {
1523 gpiochip_remove(chip);
1524 return ret;
1525 }
1526 }
1527
1528 return 0;
1529 }
1530
mtk_build_groups(struct mtk_pinctrl * hw)1531 static int mtk_build_groups(struct mtk_pinctrl *hw)
1532 {
1533 int err, i;
1534
1535 for (i = 0; i < hw->soc->ngrps; i++) {
1536 const struct group_desc *group = hw->soc->grps + i;
1537
1538 err = pinctrl_generic_add_group(hw->pctrl, group->name,
1539 group->pins, group->num_pins,
1540 group->data);
1541 if (err < 0) {
1542 dev_err(hw->dev, "Failed to register group %s\n",
1543 group->name);
1544 return err;
1545 }
1546 }
1547
1548 return 0;
1549 }
1550
mtk_build_functions(struct mtk_pinctrl * hw)1551 static int mtk_build_functions(struct mtk_pinctrl *hw)
1552 {
1553 int i, err;
1554
1555 for (i = 0; i < hw->soc->nfuncs ; i++) {
1556 const struct function_desc *func = hw->soc->funcs + i;
1557
1558 err = pinmux_generic_add_function(hw->pctrl, func->name,
1559 func->group_names,
1560 func->num_group_names,
1561 func->data);
1562 if (err < 0) {
1563 dev_err(hw->dev, "Failed to register function %s\n",
1564 func->name);
1565 return err;
1566 }
1567 }
1568
1569 return 0;
1570 }
1571
mtk_xt_get_gpio_n(void * data,unsigned long eint_n,unsigned int * gpio_n,struct gpio_chip ** gpio_chip)1572 static int mtk_xt_get_gpio_n(void *data, unsigned long eint_n,
1573 unsigned int *gpio_n,
1574 struct gpio_chip **gpio_chip)
1575 {
1576 struct mtk_pinctrl *hw = (struct mtk_pinctrl *)data;
1577
1578 *gpio_chip = &hw->chip;
1579 *gpio_n = eint_n;
1580
1581 return 0;
1582 }
1583
mtk_xt_get_gpio_state(void * data,unsigned long eint_n)1584 static int mtk_xt_get_gpio_state(void *data, unsigned long eint_n)
1585 {
1586 struct mtk_pinctrl *hw = (struct mtk_pinctrl *)data;
1587 struct gpio_chip *gpio_chip;
1588 unsigned int gpio_n;
1589 int err;
1590
1591 err = mtk_xt_get_gpio_n(hw, eint_n, &gpio_n, &gpio_chip);
1592 if (err)
1593 return err;
1594
1595 return mtk_gpio_get(gpio_chip, gpio_n);
1596 }
1597
mtk_xt_set_gpio_as_eint(void * data,unsigned long eint_n)1598 static int mtk_xt_set_gpio_as_eint(void *data, unsigned long eint_n)
1599 {
1600 struct mtk_pinctrl *hw = (struct mtk_pinctrl *)data;
1601 struct gpio_chip *gpio_chip;
1602 unsigned int gpio_n;
1603 int err;
1604
1605 err = mtk_xt_get_gpio_n(hw, eint_n, &gpio_n, &gpio_chip);
1606 if (err)
1607 return err;
1608
1609 err = mtk_hw_set_value(hw, gpio_n, PINCTRL_PIN_REG_MODE,
1610 MTK_GPIO_MODE);
1611 if (err)
1612 return err;
1613
1614 err = mtk_hw_set_value(hw, gpio_n, PINCTRL_PIN_REG_DIR, MTK_INPUT);
1615 if (err)
1616 return err;
1617
1618 err = mtk_hw_set_value(hw, gpio_n, PINCTRL_PIN_REG_SMT, MTK_ENABLE);
1619 if (err)
1620 return err;
1621
1622 return 0;
1623 }
1624
1625 static const struct mtk_eint_xt mtk_eint_xt = {
1626 .get_gpio_n = mtk_xt_get_gpio_n,
1627 .get_gpio_state = mtk_xt_get_gpio_state,
1628 .set_gpio_as_eint = mtk_xt_set_gpio_as_eint,
1629 };
1630
1631 static int
mtk_build_eint(struct mtk_pinctrl * hw,struct platform_device * pdev)1632 mtk_build_eint(struct mtk_pinctrl *hw, struct platform_device *pdev)
1633 {
1634 struct device_node *np = pdev->dev.of_node;
1635 struct resource *res;
1636
1637 if (!IS_ENABLED(CONFIG_EINT_MTK))
1638 return 0;
1639
1640 if (!of_property_read_bool(np, "interrupt-controller"))
1641 return -ENODEV;
1642
1643 hw->eint = devm_kzalloc(hw->dev, sizeof(*hw->eint), GFP_KERNEL);
1644 if (!hw->eint)
1645 return -ENOMEM;
1646
1647 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "eint");
1648 if (!res) {
1649 dev_err(&pdev->dev, "Unable to get eint resource\n");
1650 return -ENODEV;
1651 }
1652
1653 hw->eint->base = devm_ioremap_resource(&pdev->dev, res);
1654 if (IS_ERR(hw->eint->base))
1655 return PTR_ERR(hw->eint->base);
1656
1657 hw->eint->irq = irq_of_parse_and_map(np, 0);
1658 if (!hw->eint->irq)
1659 return -EINVAL;
1660
1661 hw->eint->dev = &pdev->dev;
1662 hw->eint->hw = hw->soc->eint_hw;
1663 hw->eint->pctl = hw;
1664 hw->eint->gpio_xlate = &mtk_eint_xt;
1665
1666 return mtk_eint_do_init(hw->eint);
1667 }
1668
1669 static const struct of_device_id mtk_pinctrl_of_match[] = {
1670 { .compatible = "mediatek,mt7622-pinctrl", .data = &mt7622_data},
1671 { }
1672 };
1673
mtk_pinctrl_probe(struct platform_device * pdev)1674 static int mtk_pinctrl_probe(struct platform_device *pdev)
1675 {
1676 struct resource *res;
1677 struct mtk_pinctrl *hw;
1678 const struct of_device_id *of_id =
1679 of_match_device(mtk_pinctrl_of_match, &pdev->dev);
1680 int err;
1681
1682 hw = devm_kzalloc(&pdev->dev, sizeof(*hw), GFP_KERNEL);
1683 if (!hw)
1684 return -ENOMEM;
1685
1686 hw->soc = of_id->data;
1687
1688 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1689 if (!res) {
1690 dev_err(&pdev->dev, "missing IO resource\n");
1691 return -ENXIO;
1692 }
1693
1694 hw->dev = &pdev->dev;
1695 hw->base = devm_ioremap_resource(&pdev->dev, res);
1696 if (IS_ERR(hw->base))
1697 return PTR_ERR(hw->base);
1698
1699 /* Setup pins descriptions per SoC types */
1700 mtk_desc.pins = hw->soc->pins;
1701 mtk_desc.npins = hw->soc->npins;
1702 mtk_desc.num_custom_params = ARRAY_SIZE(mtk_custom_bindings);
1703 mtk_desc.custom_params = mtk_custom_bindings;
1704 #ifdef CONFIG_DEBUG_FS
1705 mtk_desc.custom_conf_items = mtk_conf_items;
1706 #endif
1707
1708 err = devm_pinctrl_register_and_init(&pdev->dev, &mtk_desc, hw,
1709 &hw->pctrl);
1710 if (err)
1711 return err;
1712
1713 /* Setup groups descriptions per SoC types */
1714 err = mtk_build_groups(hw);
1715 if (err) {
1716 dev_err(&pdev->dev, "Failed to build groups\n");
1717 return err;
1718 }
1719
1720 /* Setup functions descriptions per SoC types */
1721 err = mtk_build_functions(hw);
1722 if (err) {
1723 dev_err(&pdev->dev, "Failed to build functions\n");
1724 return err;
1725 }
1726
1727 /* For able to make pinctrl_claim_hogs, we must not enable pinctrl
1728 * until all groups and functions are being added one.
1729 */
1730 err = pinctrl_enable(hw->pctrl);
1731 if (err)
1732 return err;
1733
1734 err = mtk_build_eint(hw, pdev);
1735 if (err)
1736 dev_warn(&pdev->dev,
1737 "Failed to add EINT, but pinctrl still can work\n");
1738
1739 /* Build gpiochip should be after pinctrl_enable is done */
1740 err = mtk_build_gpiochip(hw, pdev->dev.of_node);
1741 if (err) {
1742 dev_err(&pdev->dev, "Failed to add gpio_chip\n");
1743 return err;
1744 }
1745
1746 platform_set_drvdata(pdev, hw);
1747
1748 return 0;
1749 }
1750
1751 static struct platform_driver mtk_pinctrl_driver = {
1752 .driver = {
1753 .name = "mtk-pinctrl",
1754 .of_match_table = mtk_pinctrl_of_match,
1755 },
1756 .probe = mtk_pinctrl_probe,
1757 };
1758
mtk_pinctrl_init(void)1759 static int __init mtk_pinctrl_init(void)
1760 {
1761 return platform_driver_register(&mtk_pinctrl_driver);
1762 }
1763 arch_initcall(mtk_pinctrl_init);
1764
