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16#include <linux/dmi.h>
17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/init.h>
20#include <linux/types.h>
21#include <linux/gpio.h>
22#include <linux/gpio/driver.h>
23#include <linux/acpi.h>
24#include <linux/pinctrl/pinctrl.h>
25#include <linux/pinctrl/pinmux.h>
26#include <linux/pinctrl/pinconf.h>
27#include <linux/pinctrl/pinconf-generic.h>
28#include <linux/platform_device.h>
29
30#define CHV_INTSTAT 0x300
31#define CHV_INTMASK 0x380
32
33#define FAMILY_PAD_REGS_OFF 0x4400
34#define FAMILY_PAD_REGS_SIZE 0x400
35#define MAX_FAMILY_PAD_GPIO_NO 15
36#define GPIO_REGS_SIZE 8
37
38#define CHV_PADCTRL0 0x000
39#define CHV_PADCTRL0_INTSEL_SHIFT 28
40#define CHV_PADCTRL0_INTSEL_MASK (0xf << CHV_PADCTRL0_INTSEL_SHIFT)
41#define CHV_PADCTRL0_TERM_UP BIT(23)
42#define CHV_PADCTRL0_TERM_SHIFT 20
43#define CHV_PADCTRL0_TERM_MASK (7 << CHV_PADCTRL0_TERM_SHIFT)
44#define CHV_PADCTRL0_TERM_20K 1
45#define CHV_PADCTRL0_TERM_5K 2
46#define CHV_PADCTRL0_TERM_1K 4
47#define CHV_PADCTRL0_PMODE_SHIFT 16
48#define CHV_PADCTRL0_PMODE_MASK (0xf << CHV_PADCTRL0_PMODE_SHIFT)
49#define CHV_PADCTRL0_GPIOEN BIT(15)
50#define CHV_PADCTRL0_GPIOCFG_SHIFT 8
51#define CHV_PADCTRL0_GPIOCFG_MASK (7 << CHV_PADCTRL0_GPIOCFG_SHIFT)
52#define CHV_PADCTRL0_GPIOCFG_GPIO 0
53#define CHV_PADCTRL0_GPIOCFG_GPO 1
54#define CHV_PADCTRL0_GPIOCFG_GPI 2
55#define CHV_PADCTRL0_GPIOCFG_HIZ 3
56#define CHV_PADCTRL0_GPIOTXSTATE BIT(1)
57#define CHV_PADCTRL0_GPIORXSTATE BIT(0)
58
59#define CHV_PADCTRL1 0x004
60#define CHV_PADCTRL1_CFGLOCK BIT(31)
61#define CHV_PADCTRL1_INVRXTX_SHIFT 4
62#define CHV_PADCTRL1_INVRXTX_MASK (0xf << CHV_PADCTRL1_INVRXTX_SHIFT)
63#define CHV_PADCTRL1_INVRXTX_TXENABLE (2 << CHV_PADCTRL1_INVRXTX_SHIFT)
64#define CHV_PADCTRL1_ODEN BIT(3)
65#define CHV_PADCTRL1_INVRXTX_RXDATA (4 << CHV_PADCTRL1_INVRXTX_SHIFT)
66#define CHV_PADCTRL1_INTWAKECFG_MASK 7
67#define CHV_PADCTRL1_INTWAKECFG_FALLING 1
68#define CHV_PADCTRL1_INTWAKECFG_RISING 2
69#define CHV_PADCTRL1_INTWAKECFG_BOTH 3
70#define CHV_PADCTRL1_INTWAKECFG_LEVEL 4
71
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77
78struct chv_alternate_function {
79 unsigned pin;
80 u8 mode;
81 bool invert_oe;
82};
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93
94struct chv_pingroup {
95 const char *name;
96 const unsigned *pins;
97 size_t npins;
98 struct chv_alternate_function altfunc;
99 const struct chv_alternate_function *overrides;
100 size_t noverrides;
101};
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108
109struct chv_function {
110 const char *name;
111 const char * const *groups;
112 size_t ngroups;
113};
114
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119
120struct chv_gpio_pinrange {
121 unsigned base;
122 unsigned npins;
123};
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137
138struct chv_community {
139 const char *uid;
140 const struct pinctrl_pin_desc *pins;
141 size_t npins;
142 const struct chv_pingroup *groups;
143 size_t ngroups;
144 const struct chv_function *functions;
145 size_t nfunctions;
146 const struct chv_gpio_pinrange *gpio_ranges;
147 size_t ngpio_ranges;
148 size_t nirqs;
149 acpi_adr_space_type acpi_space_id;
150};
151
152struct chv_pin_context {
153 u32 padctrl0;
154 u32 padctrl1;
155};
156
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170
171struct chv_pinctrl {
172 struct device *dev;
173 struct pinctrl_desc pctldesc;
174 struct pinctrl_dev *pctldev;
175 struct gpio_chip chip;
176 void __iomem *regs;
177 unsigned intr_lines[16];
178 const struct chv_community *community;
179 u32 saved_intmask;
180 struct chv_pin_context *saved_pin_context;
181};
182
183#define ALTERNATE_FUNCTION(p, m, i) \
184 { \
185 .pin = (p), \
186 .mode = (m), \
187 .invert_oe = (i), \
188 }
189
190#define PIN_GROUP(n, p, m, i) \
191 { \
192 .name = (n), \
193 .pins = (p), \
194 .npins = ARRAY_SIZE((p)), \
195 .altfunc.mode = (m), \
196 .altfunc.invert_oe = (i), \
197 }
198
199#define PIN_GROUP_WITH_OVERRIDE(n, p, m, i, o) \
200 { \
201 .name = (n), \
202 .pins = (p), \
203 .npins = ARRAY_SIZE((p)), \
204 .altfunc.mode = (m), \
205 .altfunc.invert_oe = (i), \
206 .overrides = (o), \
207 .noverrides = ARRAY_SIZE((o)), \
208 }
209
210#define FUNCTION(n, g) \
211 { \
212 .name = (n), \
213 .groups = (g), \
214 .ngroups = ARRAY_SIZE((g)), \
215 }
216
217#define GPIO_PINRANGE(start, end) \
218 { \
219 .base = (start), \
220 .npins = (end) - (start) + 1, \
221 }
222
223static const struct pinctrl_pin_desc southwest_pins[] = {
224 PINCTRL_PIN(0, "FST_SPI_D2"),
225 PINCTRL_PIN(1, "FST_SPI_D0"),
226 PINCTRL_PIN(2, "FST_SPI_CLK"),
227 PINCTRL_PIN(3, "FST_SPI_D3"),
228 PINCTRL_PIN(4, "FST_SPI_CS1_B"),
229 PINCTRL_PIN(5, "FST_SPI_D1"),
230 PINCTRL_PIN(6, "FST_SPI_CS0_B"),
231 PINCTRL_PIN(7, "FST_SPI_CS2_B"),
232
233 PINCTRL_PIN(15, "UART1_RTS_B"),
234 PINCTRL_PIN(16, "UART1_RXD"),
235 PINCTRL_PIN(17, "UART2_RXD"),
236 PINCTRL_PIN(18, "UART1_CTS_B"),
237 PINCTRL_PIN(19, "UART2_RTS_B"),
238 PINCTRL_PIN(20, "UART1_TXD"),
239 PINCTRL_PIN(21, "UART2_TXD"),
240 PINCTRL_PIN(22, "UART2_CTS_B"),
241
242 PINCTRL_PIN(30, "MF_HDA_CLK"),
243 PINCTRL_PIN(31, "MF_HDA_RSTB"),
244 PINCTRL_PIN(32, "MF_HDA_SDIO"),
245 PINCTRL_PIN(33, "MF_HDA_SDO"),
246 PINCTRL_PIN(34, "MF_HDA_DOCKRSTB"),
247 PINCTRL_PIN(35, "MF_HDA_SYNC"),
248 PINCTRL_PIN(36, "MF_HDA_SDI1"),
249 PINCTRL_PIN(37, "MF_HDA_DOCKENB"),
250
251 PINCTRL_PIN(45, "I2C5_SDA"),
252 PINCTRL_PIN(46, "I2C4_SDA"),
253 PINCTRL_PIN(47, "I2C6_SDA"),
254 PINCTRL_PIN(48, "I2C5_SCL"),
255 PINCTRL_PIN(49, "I2C_NFC_SDA"),
256 PINCTRL_PIN(50, "I2C4_SCL"),
257 PINCTRL_PIN(51, "I2C6_SCL"),
258 PINCTRL_PIN(52, "I2C_NFC_SCL"),
259
260 PINCTRL_PIN(60, "I2C1_SDA"),
261 PINCTRL_PIN(61, "I2C0_SDA"),
262 PINCTRL_PIN(62, "I2C2_SDA"),
263 PINCTRL_PIN(63, "I2C1_SCL"),
264 PINCTRL_PIN(64, "I2C3_SDA"),
265 PINCTRL_PIN(65, "I2C0_SCL"),
266 PINCTRL_PIN(66, "I2C2_SCL"),
267 PINCTRL_PIN(67, "I2C3_SCL"),
268
269 PINCTRL_PIN(75, "SATA_GP0"),
270 PINCTRL_PIN(76, "SATA_GP1"),
271 PINCTRL_PIN(77, "SATA_LEDN"),
272 PINCTRL_PIN(78, "SATA_GP2"),
273 PINCTRL_PIN(79, "MF_SMB_ALERTB"),
274 PINCTRL_PIN(80, "SATA_GP3"),
275 PINCTRL_PIN(81, "MF_SMB_CLK"),
276 PINCTRL_PIN(82, "MF_SMB_DATA"),
277
278 PINCTRL_PIN(90, "PCIE_CLKREQ0B"),
279 PINCTRL_PIN(91, "PCIE_CLKREQ1B"),
280 PINCTRL_PIN(92, "GP_SSP_2_CLK"),
281 PINCTRL_PIN(93, "PCIE_CLKREQ2B"),
282 PINCTRL_PIN(94, "GP_SSP_2_RXD"),
283 PINCTRL_PIN(95, "PCIE_CLKREQ3B"),
284 PINCTRL_PIN(96, "GP_SSP_2_FS"),
285 PINCTRL_PIN(97, "GP_SSP_2_TXD"),
286};
287
288static const unsigned southwest_fspi_pins[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
289static const unsigned southwest_uart0_pins[] = { 16, 20 };
290static const unsigned southwest_uart1_pins[] = { 15, 16, 18, 20 };
291static const unsigned southwest_uart2_pins[] = { 17, 19, 21, 22 };
292static const unsigned southwest_i2c0_pins[] = { 61, 65 };
293static const unsigned southwest_hda_pins[] = { 30, 31, 32, 33, 34, 35, 36, 37 };
294static const unsigned southwest_lpe_pins[] = {
295 30, 31, 32, 33, 34, 35, 36, 37, 92, 94, 96, 97,
296};
297static const unsigned southwest_i2c1_pins[] = { 60, 63 };
298static const unsigned southwest_i2c2_pins[] = { 62, 66 };
299static const unsigned southwest_i2c3_pins[] = { 64, 67 };
300static const unsigned southwest_i2c4_pins[] = { 46, 50 };
301static const unsigned southwest_i2c5_pins[] = { 45, 48 };
302static const unsigned southwest_i2c6_pins[] = { 47, 51 };
303static const unsigned southwest_i2c_nfc_pins[] = { 49, 52 };
304static const unsigned southwest_smbus_pins[] = { 79, 81, 82 };
305static const unsigned southwest_spi3_pins[] = { 76, 79, 80, 81, 82 };
306
307
308static const struct chv_alternate_function southwest_lpe_altfuncs[] = {
309 ALTERNATE_FUNCTION(30, 1, true),
310 ALTERNATE_FUNCTION(34, 1, true),
311 ALTERNATE_FUNCTION(97, 1, true),
312};
313
314
315
316
317
318static const struct chv_alternate_function southwest_spi3_altfuncs[] = {
319 ALTERNATE_FUNCTION(76, 3, false),
320 ALTERNATE_FUNCTION(80, 3, false),
321};
322
323static const struct chv_pingroup southwest_groups[] = {
324 PIN_GROUP("uart0_grp", southwest_uart0_pins, 2, false),
325 PIN_GROUP("uart1_grp", southwest_uart1_pins, 1, false),
326 PIN_GROUP("uart2_grp", southwest_uart2_pins, 1, false),
327 PIN_GROUP("hda_grp", southwest_hda_pins, 2, false),
328 PIN_GROUP("i2c0_grp", southwest_i2c0_pins, 1, true),
329 PIN_GROUP("i2c1_grp", southwest_i2c1_pins, 1, true),
330 PIN_GROUP("i2c2_grp", southwest_i2c2_pins, 1, true),
331 PIN_GROUP("i2c3_grp", southwest_i2c3_pins, 1, true),
332 PIN_GROUP("i2c4_grp", southwest_i2c4_pins, 1, true),
333 PIN_GROUP("i2c5_grp", southwest_i2c5_pins, 1, true),
334 PIN_GROUP("i2c6_grp", southwest_i2c6_pins, 1, true),
335 PIN_GROUP("i2c_nfc_grp", southwest_i2c_nfc_pins, 2, true),
336
337 PIN_GROUP_WITH_OVERRIDE("lpe_grp", southwest_lpe_pins, 1, false,
338 southwest_lpe_altfuncs),
339 PIN_GROUP_WITH_OVERRIDE("spi3_grp", southwest_spi3_pins, 2, false,
340 southwest_spi3_altfuncs),
341};
342
343static const char * const southwest_uart0_groups[] = { "uart0_grp" };
344static const char * const southwest_uart1_groups[] = { "uart1_grp" };
345static const char * const southwest_uart2_groups[] = { "uart2_grp" };
346static const char * const southwest_hda_groups[] = { "hda_grp" };
347static const char * const southwest_lpe_groups[] = { "lpe_grp" };
348static const char * const southwest_i2c0_groups[] = { "i2c0_grp" };
349static const char * const southwest_i2c1_groups[] = { "i2c1_grp" };
350static const char * const southwest_i2c2_groups[] = { "i2c2_grp" };
351static const char * const southwest_i2c3_groups[] = { "i2c3_grp" };
352static const char * const southwest_i2c4_groups[] = { "i2c4_grp" };
353static const char * const southwest_i2c5_groups[] = { "i2c5_grp" };
354static const char * const southwest_i2c6_groups[] = { "i2c6_grp" };
355static const char * const southwest_i2c_nfc_groups[] = { "i2c_nfc_grp" };
356static const char * const southwest_spi3_groups[] = { "spi3_grp" };
357
358
359
360
361
362static const struct chv_function southwest_functions[] = {
363 FUNCTION("uart0", southwest_uart0_groups),
364 FUNCTION("uart1", southwest_uart1_groups),
365 FUNCTION("uart2", southwest_uart2_groups),
366 FUNCTION("hda", southwest_hda_groups),
367 FUNCTION("lpe", southwest_lpe_groups),
368 FUNCTION("i2c0", southwest_i2c0_groups),
369 FUNCTION("i2c1", southwest_i2c1_groups),
370 FUNCTION("i2c2", southwest_i2c2_groups),
371 FUNCTION("i2c3", southwest_i2c3_groups),
372 FUNCTION("i2c4", southwest_i2c4_groups),
373 FUNCTION("i2c5", southwest_i2c5_groups),
374 FUNCTION("i2c6", southwest_i2c6_groups),
375 FUNCTION("i2c_nfc", southwest_i2c_nfc_groups),
376 FUNCTION("spi3", southwest_spi3_groups),
377};
378
379static const struct chv_gpio_pinrange southwest_gpio_ranges[] = {
380 GPIO_PINRANGE(0, 7),
381 GPIO_PINRANGE(15, 22),
382 GPIO_PINRANGE(30, 37),
383 GPIO_PINRANGE(45, 52),
384 GPIO_PINRANGE(60, 67),
385 GPIO_PINRANGE(75, 82),
386 GPIO_PINRANGE(90, 97),
387};
388
389static const struct chv_community southwest_community = {
390 .uid = "1",
391 .pins = southwest_pins,
392 .npins = ARRAY_SIZE(southwest_pins),
393 .groups = southwest_groups,
394 .ngroups = ARRAY_SIZE(southwest_groups),
395 .functions = southwest_functions,
396 .nfunctions = ARRAY_SIZE(southwest_functions),
397 .gpio_ranges = southwest_gpio_ranges,
398 .ngpio_ranges = ARRAY_SIZE(southwest_gpio_ranges),
399
400
401
402
403
404 .nirqs = 8,
405 .acpi_space_id = 0x91,
406};
407
408static const struct pinctrl_pin_desc north_pins[] = {
409 PINCTRL_PIN(0, "GPIO_DFX_0"),
410 PINCTRL_PIN(1, "GPIO_DFX_3"),
411 PINCTRL_PIN(2, "GPIO_DFX_7"),
412 PINCTRL_PIN(3, "GPIO_DFX_1"),
413 PINCTRL_PIN(4, "GPIO_DFX_5"),
414 PINCTRL_PIN(5, "GPIO_DFX_4"),
415 PINCTRL_PIN(6, "GPIO_DFX_8"),
416 PINCTRL_PIN(7, "GPIO_DFX_2"),
417 PINCTRL_PIN(8, "GPIO_DFX_6"),
418
419 PINCTRL_PIN(15, "GPIO_SUS0"),
420 PINCTRL_PIN(16, "SEC_GPIO_SUS10"),
421 PINCTRL_PIN(17, "GPIO_SUS3"),
422 PINCTRL_PIN(18, "GPIO_SUS7"),
423 PINCTRL_PIN(19, "GPIO_SUS1"),
424 PINCTRL_PIN(20, "GPIO_SUS5"),
425 PINCTRL_PIN(21, "SEC_GPIO_SUS11"),
426 PINCTRL_PIN(22, "GPIO_SUS4"),
427 PINCTRL_PIN(23, "SEC_GPIO_SUS8"),
428 PINCTRL_PIN(24, "GPIO_SUS2"),
429 PINCTRL_PIN(25, "GPIO_SUS6"),
430 PINCTRL_PIN(26, "CX_PREQ_B"),
431 PINCTRL_PIN(27, "SEC_GPIO_SUS9"),
432
433 PINCTRL_PIN(30, "TRST_B"),
434 PINCTRL_PIN(31, "TCK"),
435 PINCTRL_PIN(32, "PROCHOT_B"),
436 PINCTRL_PIN(33, "SVIDO_DATA"),
437 PINCTRL_PIN(34, "TMS"),
438 PINCTRL_PIN(35, "CX_PRDY_B_2"),
439 PINCTRL_PIN(36, "TDO_2"),
440 PINCTRL_PIN(37, "CX_PRDY_B"),
441 PINCTRL_PIN(38, "SVIDO_ALERT_B"),
442 PINCTRL_PIN(39, "TDO"),
443 PINCTRL_PIN(40, "SVIDO_CLK"),
444 PINCTRL_PIN(41, "TDI"),
445
446 PINCTRL_PIN(45, "GP_CAMERASB_05"),
447 PINCTRL_PIN(46, "GP_CAMERASB_02"),
448 PINCTRL_PIN(47, "GP_CAMERASB_08"),
449 PINCTRL_PIN(48, "GP_CAMERASB_00"),
450 PINCTRL_PIN(49, "GP_CAMERASB_06"),
451 PINCTRL_PIN(50, "GP_CAMERASB_10"),
452 PINCTRL_PIN(51, "GP_CAMERASB_03"),
453 PINCTRL_PIN(52, "GP_CAMERASB_09"),
454 PINCTRL_PIN(53, "GP_CAMERASB_01"),
455 PINCTRL_PIN(54, "GP_CAMERASB_07"),
456 PINCTRL_PIN(55, "GP_CAMERASB_11"),
457 PINCTRL_PIN(56, "GP_CAMERASB_04"),
458
459 PINCTRL_PIN(60, "PANEL0_BKLTEN"),
460 PINCTRL_PIN(61, "HV_DDI0_HPD"),
461 PINCTRL_PIN(62, "HV_DDI2_DDC_SDA"),
462 PINCTRL_PIN(63, "PANEL1_BKLTCTL"),
463 PINCTRL_PIN(64, "HV_DDI1_HPD"),
464 PINCTRL_PIN(65, "PANEL0_BKLTCTL"),
465 PINCTRL_PIN(66, "HV_DDI0_DDC_SDA"),
466 PINCTRL_PIN(67, "HV_DDI2_DDC_SCL"),
467 PINCTRL_PIN(68, "HV_DDI2_HPD"),
468 PINCTRL_PIN(69, "PANEL1_VDDEN"),
469 PINCTRL_PIN(70, "PANEL1_BKLTEN"),
470 PINCTRL_PIN(71, "HV_DDI0_DDC_SCL"),
471 PINCTRL_PIN(72, "PANEL0_VDDEN"),
472};
473
474static const struct chv_gpio_pinrange north_gpio_ranges[] = {
475 GPIO_PINRANGE(0, 8),
476 GPIO_PINRANGE(15, 27),
477 GPIO_PINRANGE(30, 41),
478 GPIO_PINRANGE(45, 56),
479 GPIO_PINRANGE(60, 72),
480};
481
482static const struct chv_community north_community = {
483 .uid = "2",
484 .pins = north_pins,
485 .npins = ARRAY_SIZE(north_pins),
486 .gpio_ranges = north_gpio_ranges,
487 .ngpio_ranges = ARRAY_SIZE(north_gpio_ranges),
488
489
490
491
492
493 .nirqs = 8,
494 .acpi_space_id = 0x92,
495};
496
497static const struct pinctrl_pin_desc east_pins[] = {
498 PINCTRL_PIN(0, "PMU_SLP_S3_B"),
499 PINCTRL_PIN(1, "PMU_BATLOW_B"),
500 PINCTRL_PIN(2, "SUS_STAT_B"),
501 PINCTRL_PIN(3, "PMU_SLP_S0IX_B"),
502 PINCTRL_PIN(4, "PMU_AC_PRESENT"),
503 PINCTRL_PIN(5, "PMU_PLTRST_B"),
504 PINCTRL_PIN(6, "PMU_SUSCLK"),
505 PINCTRL_PIN(7, "PMU_SLP_LAN_B"),
506 PINCTRL_PIN(8, "PMU_PWRBTN_B"),
507 PINCTRL_PIN(9, "PMU_SLP_S4_B"),
508 PINCTRL_PIN(10, "PMU_WAKE_B"),
509 PINCTRL_PIN(11, "PMU_WAKE_LAN_B"),
510
511 PINCTRL_PIN(15, "MF_ISH_GPIO_3"),
512 PINCTRL_PIN(16, "MF_ISH_GPIO_7"),
513 PINCTRL_PIN(17, "MF_ISH_I2C1_SCL"),
514 PINCTRL_PIN(18, "MF_ISH_GPIO_1"),
515 PINCTRL_PIN(19, "MF_ISH_GPIO_5"),
516 PINCTRL_PIN(20, "MF_ISH_GPIO_9"),
517 PINCTRL_PIN(21, "MF_ISH_GPIO_0"),
518 PINCTRL_PIN(22, "MF_ISH_GPIO_4"),
519 PINCTRL_PIN(23, "MF_ISH_GPIO_8"),
520 PINCTRL_PIN(24, "MF_ISH_GPIO_2"),
521 PINCTRL_PIN(25, "MF_ISH_GPIO_6"),
522 PINCTRL_PIN(26, "MF_ISH_I2C1_SDA"),
523};
524
525static const struct chv_gpio_pinrange east_gpio_ranges[] = {
526 GPIO_PINRANGE(0, 11),
527 GPIO_PINRANGE(15, 26),
528};
529
530static const struct chv_community east_community = {
531 .uid = "3",
532 .pins = east_pins,
533 .npins = ARRAY_SIZE(east_pins),
534 .gpio_ranges = east_gpio_ranges,
535 .ngpio_ranges = ARRAY_SIZE(east_gpio_ranges),
536 .nirqs = 16,
537 .acpi_space_id = 0x93,
538};
539
540static const struct pinctrl_pin_desc southeast_pins[] = {
541 PINCTRL_PIN(0, "MF_PLT_CLK0"),
542 PINCTRL_PIN(1, "PWM1"),
543 PINCTRL_PIN(2, "MF_PLT_CLK1"),
544 PINCTRL_PIN(3, "MF_PLT_CLK4"),
545 PINCTRL_PIN(4, "MF_PLT_CLK3"),
546 PINCTRL_PIN(5, "PWM0"),
547 PINCTRL_PIN(6, "MF_PLT_CLK5"),
548 PINCTRL_PIN(7, "MF_PLT_CLK2"),
549
550 PINCTRL_PIN(15, "SDMMC2_D3_CD_B"),
551 PINCTRL_PIN(16, "SDMMC1_CLK"),
552 PINCTRL_PIN(17, "SDMMC1_D0"),
553 PINCTRL_PIN(18, "SDMMC2_D1"),
554 PINCTRL_PIN(19, "SDMMC2_CLK"),
555 PINCTRL_PIN(20, "SDMMC1_D2"),
556 PINCTRL_PIN(21, "SDMMC2_D2"),
557 PINCTRL_PIN(22, "SDMMC2_CMD"),
558 PINCTRL_PIN(23, "SDMMC1_CMD"),
559 PINCTRL_PIN(24, "SDMMC1_D1"),
560 PINCTRL_PIN(25, "SDMMC2_D0"),
561 PINCTRL_PIN(26, "SDMMC1_D3_CD_B"),
562
563 PINCTRL_PIN(30, "SDMMC3_D1"),
564 PINCTRL_PIN(31, "SDMMC3_CLK"),
565 PINCTRL_PIN(32, "SDMMC3_D3"),
566 PINCTRL_PIN(33, "SDMMC3_D2"),
567 PINCTRL_PIN(34, "SDMMC3_CMD"),
568 PINCTRL_PIN(35, "SDMMC3_D0"),
569
570 PINCTRL_PIN(45, "MF_LPC_AD2"),
571 PINCTRL_PIN(46, "LPC_CLKRUNB"),
572 PINCTRL_PIN(47, "MF_LPC_AD0"),
573 PINCTRL_PIN(48, "LPC_FRAMEB"),
574 PINCTRL_PIN(49, "MF_LPC_CLKOUT1"),
575 PINCTRL_PIN(50, "MF_LPC_AD3"),
576 PINCTRL_PIN(51, "MF_LPC_CLKOUT0"),
577 PINCTRL_PIN(52, "MF_LPC_AD1"),
578
579 PINCTRL_PIN(60, "SPI1_MISO"),
580 PINCTRL_PIN(61, "SPI1_CSO_B"),
581 PINCTRL_PIN(62, "SPI1_CLK"),
582 PINCTRL_PIN(63, "MMC1_D6"),
583 PINCTRL_PIN(64, "SPI1_MOSI"),
584 PINCTRL_PIN(65, "MMC1_D5"),
585 PINCTRL_PIN(66, "SPI1_CS1_B"),
586 PINCTRL_PIN(67, "MMC1_D4_SD_WE"),
587 PINCTRL_PIN(68, "MMC1_D7"),
588 PINCTRL_PIN(69, "MMC1_RCLK"),
589
590 PINCTRL_PIN(75, "USB_OC1_B"),
591 PINCTRL_PIN(76, "PMU_RESETBUTTON_B"),
592 PINCTRL_PIN(77, "GPIO_ALERT"),
593 PINCTRL_PIN(78, "SDMMC3_PWR_EN_B"),
594 PINCTRL_PIN(79, "ILB_SERIRQ"),
595 PINCTRL_PIN(80, "USB_OC0_B"),
596 PINCTRL_PIN(81, "SDMMC3_CD_B"),
597 PINCTRL_PIN(82, "SPKR"),
598 PINCTRL_PIN(83, "SUSPWRDNACK"),
599 PINCTRL_PIN(84, "SPARE_PIN"),
600 PINCTRL_PIN(85, "SDMMC3_1P8_EN"),
601};
602
603static const unsigned southeast_pwm0_pins[] = { 5 };
604static const unsigned southeast_pwm1_pins[] = { 1 };
605static const unsigned southeast_sdmmc1_pins[] = {
606 16, 17, 20, 23, 24, 26, 63, 65, 67, 68, 69,
607};
608static const unsigned southeast_sdmmc2_pins[] = { 15, 18, 19, 21, 22, 25 };
609static const unsigned southeast_sdmmc3_pins[] = {
610 30, 31, 32, 33, 34, 35, 78, 81, 85,
611};
612static const unsigned southeast_spi1_pins[] = { 60, 61, 62, 64, 66 };
613static const unsigned southeast_spi2_pins[] = { 2, 3, 4, 6, 7 };
614
615static const struct chv_pingroup southeast_groups[] = {
616 PIN_GROUP("pwm0_grp", southeast_pwm0_pins, 1, false),
617 PIN_GROUP("pwm1_grp", southeast_pwm1_pins, 1, false),
618 PIN_GROUP("sdmmc1_grp", southeast_sdmmc1_pins, 1, false),
619 PIN_GROUP("sdmmc2_grp", southeast_sdmmc2_pins, 1, false),
620 PIN_GROUP("sdmmc3_grp", southeast_sdmmc3_pins, 1, false),
621 PIN_GROUP("spi1_grp", southeast_spi1_pins, 1, false),
622 PIN_GROUP("spi2_grp", southeast_spi2_pins, 4, false),
623};
624
625static const char * const southeast_pwm0_groups[] = { "pwm0_grp" };
626static const char * const southeast_pwm1_groups[] = { "pwm1_grp" };
627static const char * const southeast_sdmmc1_groups[] = { "sdmmc1_grp" };
628static const char * const southeast_sdmmc2_groups[] = { "sdmmc2_grp" };
629static const char * const southeast_sdmmc3_groups[] = { "sdmmc3_grp" };
630static const char * const southeast_spi1_groups[] = { "spi1_grp" };
631static const char * const southeast_spi2_groups[] = { "spi2_grp" };
632
633static const struct chv_function southeast_functions[] = {
634 FUNCTION("pwm0", southeast_pwm0_groups),
635 FUNCTION("pwm1", southeast_pwm1_groups),
636 FUNCTION("sdmmc1", southeast_sdmmc1_groups),
637 FUNCTION("sdmmc2", southeast_sdmmc2_groups),
638 FUNCTION("sdmmc3", southeast_sdmmc3_groups),
639 FUNCTION("spi1", southeast_spi1_groups),
640 FUNCTION("spi2", southeast_spi2_groups),
641};
642
643static const struct chv_gpio_pinrange southeast_gpio_ranges[] = {
644 GPIO_PINRANGE(0, 7),
645 GPIO_PINRANGE(15, 26),
646 GPIO_PINRANGE(30, 35),
647 GPIO_PINRANGE(45, 52),
648 GPIO_PINRANGE(60, 69),
649 GPIO_PINRANGE(75, 85),
650};
651
652static const struct chv_community southeast_community = {
653 .uid = "4",
654 .pins = southeast_pins,
655 .npins = ARRAY_SIZE(southeast_pins),
656 .groups = southeast_groups,
657 .ngroups = ARRAY_SIZE(southeast_groups),
658 .functions = southeast_functions,
659 .nfunctions = ARRAY_SIZE(southeast_functions),
660 .gpio_ranges = southeast_gpio_ranges,
661 .ngpio_ranges = ARRAY_SIZE(southeast_gpio_ranges),
662 .nirqs = 16,
663 .acpi_space_id = 0x94,
664};
665
666static const struct chv_community *chv_communities[] = {
667 &southwest_community,
668 &north_community,
669 &east_community,
670 &southeast_community,
671};
672
673
674
675
676
677
678
679
680
681
682static DEFINE_RAW_SPINLOCK(chv_lock);
683
684static void __iomem *chv_padreg(struct chv_pinctrl *pctrl, unsigned offset,
685 unsigned reg)
686{
687 unsigned family_no = offset / MAX_FAMILY_PAD_GPIO_NO;
688 unsigned pad_no = offset % MAX_FAMILY_PAD_GPIO_NO;
689
690 offset = FAMILY_PAD_REGS_OFF + FAMILY_PAD_REGS_SIZE * family_no +
691 GPIO_REGS_SIZE * pad_no;
692
693 return pctrl->regs + offset + reg;
694}
695
696static void chv_writel(u32 value, void __iomem *reg)
697{
698 writel(value, reg);
699
700 readl(reg);
701}
702
703
704static bool chv_pad_locked(struct chv_pinctrl *pctrl, unsigned offset)
705{
706 void __iomem *reg;
707
708 reg = chv_padreg(pctrl, offset, CHV_PADCTRL1);
709 return readl(reg) & CHV_PADCTRL1_CFGLOCK;
710}
711
712static int chv_get_groups_count(struct pinctrl_dev *pctldev)
713{
714 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
715
716 return pctrl->community->ngroups;
717}
718
719static const char *chv_get_group_name(struct pinctrl_dev *pctldev,
720 unsigned group)
721{
722 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
723
724 return pctrl->community->groups[group].name;
725}
726
727static int chv_get_group_pins(struct pinctrl_dev *pctldev, unsigned group,
728 const unsigned **pins, unsigned *npins)
729{
730 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
731
732 *pins = pctrl->community->groups[group].pins;
733 *npins = pctrl->community->groups[group].npins;
734 return 0;
735}
736
737static void chv_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
738 unsigned offset)
739{
740 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
741 unsigned long flags;
742 u32 ctrl0, ctrl1;
743 bool locked;
744
745 raw_spin_lock_irqsave(&chv_lock, flags);
746
747 ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
748 ctrl1 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL1));
749 locked = chv_pad_locked(pctrl, offset);
750
751 raw_spin_unlock_irqrestore(&chv_lock, flags);
752
753 if (ctrl0 & CHV_PADCTRL0_GPIOEN) {
754 seq_puts(s, "GPIO ");
755 } else {
756 u32 mode;
757
758 mode = ctrl0 & CHV_PADCTRL0_PMODE_MASK;
759 mode >>= CHV_PADCTRL0_PMODE_SHIFT;
760
761 seq_printf(s, "mode %d ", mode);
762 }
763
764 seq_printf(s, "0x%08x 0x%08x", ctrl0, ctrl1);
765
766 if (locked)
767 seq_puts(s, " [LOCKED]");
768}
769
770static const struct pinctrl_ops chv_pinctrl_ops = {
771 .get_groups_count = chv_get_groups_count,
772 .get_group_name = chv_get_group_name,
773 .get_group_pins = chv_get_group_pins,
774 .pin_dbg_show = chv_pin_dbg_show,
775};
776
777static int chv_get_functions_count(struct pinctrl_dev *pctldev)
778{
779 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
780
781 return pctrl->community->nfunctions;
782}
783
784static const char *chv_get_function_name(struct pinctrl_dev *pctldev,
785 unsigned function)
786{
787 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
788
789 return pctrl->community->functions[function].name;
790}
791
792static int chv_get_function_groups(struct pinctrl_dev *pctldev,
793 unsigned function,
794 const char * const **groups,
795 unsigned * const ngroups)
796{
797 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
798
799 *groups = pctrl->community->functions[function].groups;
800 *ngroups = pctrl->community->functions[function].ngroups;
801 return 0;
802}
803
804static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function,
805 unsigned group)
806{
807 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
808 const struct chv_pingroup *grp;
809 unsigned long flags;
810 int i;
811
812 grp = &pctrl->community->groups[group];
813
814 raw_spin_lock_irqsave(&chv_lock, flags);
815
816
817 for (i = 0; i < grp->npins; i++) {
818 if (chv_pad_locked(pctrl, grp->pins[i])) {
819 dev_warn(pctrl->dev, "unable to set mode for locked pin %u\n",
820 grp->pins[i]);
821 raw_spin_unlock_irqrestore(&chv_lock, flags);
822 return -EBUSY;
823 }
824 }
825
826 for (i = 0; i < grp->npins; i++) {
827 const struct chv_alternate_function *altfunc = &grp->altfunc;
828 int pin = grp->pins[i];
829 void __iomem *reg;
830 u32 value;
831
832
833 if (grp->overrides) {
834 int j;
835
836 for (j = 0; j < grp->noverrides; j++) {
837 if (grp->overrides[j].pin == pin) {
838 altfunc = &grp->overrides[j];
839 break;
840 }
841 }
842 }
843
844 reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
845 value = readl(reg);
846
847 value &= ~CHV_PADCTRL0_GPIOEN;
848
849 value &= ~CHV_PADCTRL0_PMODE_MASK;
850 value |= altfunc->mode << CHV_PADCTRL0_PMODE_SHIFT;
851 chv_writel(value, reg);
852
853
854 reg = chv_padreg(pctrl, pin, CHV_PADCTRL1);
855 value = readl(reg) & ~CHV_PADCTRL1_INVRXTX_MASK;
856 if (altfunc->invert_oe)
857 value |= CHV_PADCTRL1_INVRXTX_TXENABLE;
858 chv_writel(value, reg);
859
860 dev_dbg(pctrl->dev, "configured pin %u mode %u OE %sinverted\n",
861 pin, altfunc->mode, altfunc->invert_oe ? "" : "not ");
862 }
863
864 raw_spin_unlock_irqrestore(&chv_lock, flags);
865
866 return 0;
867}
868
869static int chv_gpio_request_enable(struct pinctrl_dev *pctldev,
870 struct pinctrl_gpio_range *range,
871 unsigned offset)
872{
873 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
874 unsigned long flags;
875 void __iomem *reg;
876 u32 value;
877
878 raw_spin_lock_irqsave(&chv_lock, flags);
879
880 if (chv_pad_locked(pctrl, offset)) {
881 value = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
882 if (!(value & CHV_PADCTRL0_GPIOEN)) {
883
884 raw_spin_unlock_irqrestore(&chv_lock, flags);
885 return -EBUSY;
886 }
887 } else {
888 int i;
889
890
891 for (i = 0; i < ARRAY_SIZE(pctrl->intr_lines); i++) {
892 if (pctrl->intr_lines[i] == offset) {
893 pctrl->intr_lines[i] = 0;
894 break;
895 }
896 }
897
898
899 reg = chv_padreg(pctrl, offset, CHV_PADCTRL1);
900 value = readl(reg);
901 value &= ~CHV_PADCTRL1_INTWAKECFG_MASK;
902 value &= ~CHV_PADCTRL1_INVRXTX_MASK;
903 chv_writel(value, reg);
904
905 reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
906 value = readl(reg);
907
908
909
910
911
912 if ((value & CHV_PADCTRL0_GPIOCFG_MASK) ==
913 (CHV_PADCTRL0_GPIOCFG_HIZ << CHV_PADCTRL0_GPIOCFG_SHIFT)) {
914 value &= ~CHV_PADCTRL0_GPIOCFG_MASK;
915 value |= CHV_PADCTRL0_GPIOCFG_GPI <<
916 CHV_PADCTRL0_GPIOCFG_SHIFT;
917 }
918
919
920 value |= CHV_PADCTRL0_GPIOEN;
921 chv_writel(value, reg);
922 }
923
924 raw_spin_unlock_irqrestore(&chv_lock, flags);
925
926 return 0;
927}
928
929static void chv_gpio_disable_free(struct pinctrl_dev *pctldev,
930 struct pinctrl_gpio_range *range,
931 unsigned offset)
932{
933 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
934 unsigned long flags;
935 void __iomem *reg;
936 u32 value;
937
938 raw_spin_lock_irqsave(&chv_lock, flags);
939
940 reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
941 value = readl(reg) & ~CHV_PADCTRL0_GPIOEN;
942 chv_writel(value, reg);
943
944 raw_spin_unlock_irqrestore(&chv_lock, flags);
945}
946
947static int chv_gpio_set_direction(struct pinctrl_dev *pctldev,
948 struct pinctrl_gpio_range *range,
949 unsigned offset, bool input)
950{
951 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
952 void __iomem *reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
953 unsigned long flags;
954 u32 ctrl0;
955
956 raw_spin_lock_irqsave(&chv_lock, flags);
957
958 ctrl0 = readl(reg) & ~CHV_PADCTRL0_GPIOCFG_MASK;
959 if (input)
960 ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPI << CHV_PADCTRL0_GPIOCFG_SHIFT;
961 else
962 ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPO << CHV_PADCTRL0_GPIOCFG_SHIFT;
963 chv_writel(ctrl0, reg);
964
965 raw_spin_unlock_irqrestore(&chv_lock, flags);
966
967 return 0;
968}
969
970static const struct pinmux_ops chv_pinmux_ops = {
971 .get_functions_count = chv_get_functions_count,
972 .get_function_name = chv_get_function_name,
973 .get_function_groups = chv_get_function_groups,
974 .set_mux = chv_pinmux_set_mux,
975 .gpio_request_enable = chv_gpio_request_enable,
976 .gpio_disable_free = chv_gpio_disable_free,
977 .gpio_set_direction = chv_gpio_set_direction,
978};
979
980static int chv_config_get(struct pinctrl_dev *pctldev, unsigned pin,
981 unsigned long *config)
982{
983 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
984 enum pin_config_param param = pinconf_to_config_param(*config);
985 unsigned long flags;
986 u32 ctrl0, ctrl1;
987 u16 arg = 0;
988 u32 term;
989
990 raw_spin_lock_irqsave(&chv_lock, flags);
991 ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
992 ctrl1 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL1));
993 raw_spin_unlock_irqrestore(&chv_lock, flags);
994
995 term = (ctrl0 & CHV_PADCTRL0_TERM_MASK) >> CHV_PADCTRL0_TERM_SHIFT;
996
997 switch (param) {
998 case PIN_CONFIG_BIAS_DISABLE:
999 if (term)
1000 return -EINVAL;
1001 break;
1002
1003 case PIN_CONFIG_BIAS_PULL_UP:
1004 if (!(ctrl0 & CHV_PADCTRL0_TERM_UP))
1005 return -EINVAL;
1006
1007 switch (term) {
1008 case CHV_PADCTRL0_TERM_20K:
1009 arg = 20000;
1010 break;
1011 case CHV_PADCTRL0_TERM_5K:
1012 arg = 5000;
1013 break;
1014 case CHV_PADCTRL0_TERM_1K:
1015 arg = 1000;
1016 break;
1017 }
1018
1019 break;
1020
1021 case PIN_CONFIG_BIAS_PULL_DOWN:
1022 if (!term || (ctrl0 & CHV_PADCTRL0_TERM_UP))
1023 return -EINVAL;
1024
1025 switch (term) {
1026 case CHV_PADCTRL0_TERM_20K:
1027 arg = 20000;
1028 break;
1029 case CHV_PADCTRL0_TERM_5K:
1030 arg = 5000;
1031 break;
1032 }
1033
1034 break;
1035
1036 case PIN_CONFIG_DRIVE_OPEN_DRAIN:
1037 if (!(ctrl1 & CHV_PADCTRL1_ODEN))
1038 return -EINVAL;
1039 break;
1040
1041 case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: {
1042 u32 cfg;
1043
1044 cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
1045 cfg >>= CHV_PADCTRL0_GPIOCFG_SHIFT;
1046 if (cfg != CHV_PADCTRL0_GPIOCFG_HIZ)
1047 return -EINVAL;
1048
1049 break;
1050 }
1051
1052 default:
1053 return -ENOTSUPP;
1054 }
1055
1056 *config = pinconf_to_config_packed(param, arg);
1057 return 0;
1058}
1059
1060static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin,
1061 enum pin_config_param param, u32 arg)
1062{
1063 void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
1064 unsigned long flags;
1065 u32 ctrl0, pull;
1066
1067 raw_spin_lock_irqsave(&chv_lock, flags);
1068 ctrl0 = readl(reg);
1069
1070 switch (param) {
1071 case PIN_CONFIG_BIAS_DISABLE:
1072 ctrl0 &= ~(CHV_PADCTRL0_TERM_MASK | CHV_PADCTRL0_TERM_UP);
1073 break;
1074
1075 case PIN_CONFIG_BIAS_PULL_UP:
1076 ctrl0 &= ~(CHV_PADCTRL0_TERM_MASK | CHV_PADCTRL0_TERM_UP);
1077
1078 switch (arg) {
1079 case 1000:
1080
1081 pull = CHV_PADCTRL0_TERM_1K << CHV_PADCTRL0_TERM_SHIFT;
1082 break;
1083 case 5000:
1084 pull = CHV_PADCTRL0_TERM_5K << CHV_PADCTRL0_TERM_SHIFT;
1085 break;
1086 case 20000:
1087 pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT;
1088 break;
1089 default:
1090 raw_spin_unlock_irqrestore(&chv_lock, flags);
1091 return -EINVAL;
1092 }
1093
1094 ctrl0 |= CHV_PADCTRL0_TERM_UP | pull;
1095 break;
1096
1097 case PIN_CONFIG_BIAS_PULL_DOWN:
1098 ctrl0 &= ~(CHV_PADCTRL0_TERM_MASK | CHV_PADCTRL0_TERM_UP);
1099
1100 switch (arg) {
1101 case 5000:
1102 pull = CHV_PADCTRL0_TERM_5K << CHV_PADCTRL0_TERM_SHIFT;
1103 break;
1104 case 20000:
1105 pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT;
1106 break;
1107 default:
1108 raw_spin_unlock_irqrestore(&chv_lock, flags);
1109 return -EINVAL;
1110 }
1111
1112 ctrl0 |= pull;
1113 break;
1114
1115 default:
1116 raw_spin_unlock_irqrestore(&chv_lock, flags);
1117 return -EINVAL;
1118 }
1119
1120 chv_writel(ctrl0, reg);
1121 raw_spin_unlock_irqrestore(&chv_lock, flags);
1122
1123 return 0;
1124}
1125
1126static int chv_config_set_oden(struct chv_pinctrl *pctrl, unsigned int pin,
1127 bool enable)
1128{
1129 void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL1);
1130 unsigned long flags;
1131 u32 ctrl1;
1132
1133 raw_spin_lock_irqsave(&chv_lock, flags);
1134 ctrl1 = readl(reg);
1135
1136 if (enable)
1137 ctrl1 |= CHV_PADCTRL1_ODEN;
1138 else
1139 ctrl1 &= ~CHV_PADCTRL1_ODEN;
1140
1141 chv_writel(ctrl1, reg);
1142 raw_spin_unlock_irqrestore(&chv_lock, flags);
1143
1144 return 0;
1145}
1146
1147static int chv_config_set(struct pinctrl_dev *pctldev, unsigned pin,
1148 unsigned long *configs, unsigned nconfigs)
1149{
1150 struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
1151 enum pin_config_param param;
1152 int i, ret;
1153 u32 arg;
1154
1155 if (chv_pad_locked(pctrl, pin))
1156 return -EBUSY;
1157
1158 for (i = 0; i < nconfigs; i++) {
1159 param = pinconf_to_config_param(configs[i]);
1160 arg = pinconf_to_config_argument(configs[i]);
1161
1162 switch (param) {
1163 case PIN_CONFIG_BIAS_DISABLE:
1164 case PIN_CONFIG_BIAS_PULL_UP:
1165 case PIN_CONFIG_BIAS_PULL_DOWN:
1166 ret = chv_config_set_pull(pctrl, pin, param, arg);
1167 if (ret)
1168 return ret;
1169 break;
1170
1171 case PIN_CONFIG_DRIVE_PUSH_PULL:
1172 ret = chv_config_set_oden(pctrl, pin, false);
1173 if (ret)
1174 return ret;
1175 break;
1176
1177 case PIN_CONFIG_DRIVE_OPEN_DRAIN:
1178 ret = chv_config_set_oden(pctrl, pin, true);
1179 if (ret)
1180 return ret;
1181 break;
1182
1183 default:
1184 return -ENOTSUPP;
1185 }
1186
1187 dev_dbg(pctrl->dev, "pin %d set config %d arg %u\n", pin,
1188 param, arg);
1189 }
1190
1191 return 0;
1192}
1193
1194static int chv_config_group_get(struct pinctrl_dev *pctldev,
1195 unsigned int group,
1196 unsigned long *config)
1197{
1198 const unsigned int *pins;
1199 unsigned int npins;
1200 int ret;
1201
1202 ret = chv_get_group_pins(pctldev, group, &pins, &npins);
1203 if (ret)
1204 return ret;
1205
1206 ret = chv_config_get(pctldev, pins[0], config);
1207 if (ret)
1208 return ret;
1209
1210 return 0;
1211}
1212
1213static int chv_config_group_set(struct pinctrl_dev *pctldev,
1214 unsigned int group, unsigned long *configs,
1215 unsigned int num_configs)
1216{
1217 const unsigned int *pins;
1218 unsigned int npins;
1219 int i, ret;
1220
1221 ret = chv_get_group_pins(pctldev, group, &pins, &npins);
1222 if (ret)
1223 return ret;
1224
1225 for (i = 0; i < npins; i++) {
1226 ret = chv_config_set(pctldev, pins[i], configs, num_configs);
1227 if (ret)
1228 return ret;
1229 }
1230
1231 return 0;
1232}
1233
1234static const struct pinconf_ops chv_pinconf_ops = {
1235 .is_generic = true,
1236 .pin_config_set = chv_config_set,
1237 .pin_config_get = chv_config_get,
1238 .pin_config_group_get = chv_config_group_get,
1239 .pin_config_group_set = chv_config_group_set,
1240};
1241
1242static struct pinctrl_desc chv_pinctrl_desc = {
1243 .pctlops = &chv_pinctrl_ops,
1244 .pmxops = &chv_pinmux_ops,
1245 .confops = &chv_pinconf_ops,
1246 .owner = THIS_MODULE,
1247};
1248
1249static int chv_gpio_get(struct gpio_chip *chip, unsigned offset)
1250{
1251 struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
1252 unsigned long flags;
1253 u32 ctrl0, cfg;
1254
1255 raw_spin_lock_irqsave(&chv_lock, flags);
1256 ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
1257 raw_spin_unlock_irqrestore(&chv_lock, flags);
1258
1259 cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
1260 cfg >>= CHV_PADCTRL0_GPIOCFG_SHIFT;
1261
1262 if (cfg == CHV_PADCTRL0_GPIOCFG_GPO)
1263 return !!(ctrl0 & CHV_PADCTRL0_GPIOTXSTATE);
1264 return !!(ctrl0 & CHV_PADCTRL0_GPIORXSTATE);
1265}
1266
1267static void chv_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
1268{
1269 struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
1270 unsigned long flags;
1271 void __iomem *reg;
1272 u32 ctrl0;
1273
1274 raw_spin_lock_irqsave(&chv_lock, flags);
1275
1276 reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
1277 ctrl0 = readl(reg);
1278
1279 if (value)
1280 ctrl0 |= CHV_PADCTRL0_GPIOTXSTATE;
1281 else
1282 ctrl0 &= ~CHV_PADCTRL0_GPIOTXSTATE;
1283
1284 chv_writel(ctrl0, reg);
1285
1286 raw_spin_unlock_irqrestore(&chv_lock, flags);
1287}
1288
1289static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
1290{
1291 struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
1292 u32 ctrl0, direction;
1293 unsigned long flags;
1294
1295 raw_spin_lock_irqsave(&chv_lock, flags);
1296 ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
1297 raw_spin_unlock_irqrestore(&chv_lock, flags);
1298
1299 direction = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
1300 direction >>= CHV_PADCTRL0_GPIOCFG_SHIFT;
1301
1302 return direction != CHV_PADCTRL0_GPIOCFG_GPO;
1303}
1304
1305static int chv_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
1306{
1307 return pinctrl_gpio_direction_input(chip->base + offset);
1308}
1309
1310static int chv_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
1311 int value)
1312{
1313 chv_gpio_set(chip, offset, value);
1314 return pinctrl_gpio_direction_output(chip->base + offset);
1315}
1316
1317static const struct gpio_chip chv_gpio_chip = {
1318 .owner = THIS_MODULE,
1319 .request = gpiochip_generic_request,
1320 .free = gpiochip_generic_free,
1321 .get_direction = chv_gpio_get_direction,
1322 .direction_input = chv_gpio_direction_input,
1323 .direction_output = chv_gpio_direction_output,
1324 .get = chv_gpio_get,
1325 .set = chv_gpio_set,
1326};
1327
1328static void chv_gpio_irq_ack(struct irq_data *d)
1329{
1330 struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
1331 struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
1332 int pin = irqd_to_hwirq(d);
1333 u32 intr_line;
1334
1335 raw_spin_lock(&chv_lock);
1336
1337 intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
1338 intr_line &= CHV_PADCTRL0_INTSEL_MASK;
1339 intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
1340 chv_writel(BIT(intr_line), pctrl->regs + CHV_INTSTAT);
1341
1342 raw_spin_unlock(&chv_lock);
1343}
1344
1345static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
1346{
1347 struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
1348 struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
1349 int pin = irqd_to_hwirq(d);
1350 u32 value, intr_line;
1351 unsigned long flags;
1352
1353 raw_spin_lock_irqsave(&chv_lock, flags);
1354
1355 intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
1356 intr_line &= CHV_PADCTRL0_INTSEL_MASK;
1357 intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
1358
1359 value = readl(pctrl->regs + CHV_INTMASK);
1360 if (mask)
1361 value &= ~BIT(intr_line);
1362 else
1363 value |= BIT(intr_line);
1364 chv_writel(value, pctrl->regs + CHV_INTMASK);
1365
1366 raw_spin_unlock_irqrestore(&chv_lock, flags);
1367}
1368
1369static void chv_gpio_irq_mask(struct irq_data *d)
1370{
1371 chv_gpio_irq_mask_unmask(d, true);
1372}
1373
1374static void chv_gpio_irq_unmask(struct irq_data *d)
1375{
1376 chv_gpio_irq_mask_unmask(d, false);
1377}
1378
1379static unsigned chv_gpio_irq_startup(struct irq_data *d)
1380{
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391 if (irqd_get_trigger_type(d) == IRQ_TYPE_NONE) {
1392 struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
1393 struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
1394 unsigned pin = irqd_to_hwirq(d);
1395 irq_flow_handler_t handler;
1396 unsigned long flags;
1397 u32 intsel, value;
1398
1399 raw_spin_lock_irqsave(&chv_lock, flags);
1400 intsel = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
1401 intsel &= CHV_PADCTRL0_INTSEL_MASK;
1402 intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
1403
1404 value = readl(chv_padreg(pctrl, pin, CHV_PADCTRL1));
1405 if (value & CHV_PADCTRL1_INTWAKECFG_LEVEL)
1406 handler = handle_level_irq;
1407 else
1408 handler = handle_edge_irq;
1409
1410 if (!pctrl->intr_lines[intsel]) {
1411 irq_set_handler_locked(d, handler);
1412 pctrl->intr_lines[intsel] = pin;
1413 }
1414 raw_spin_unlock_irqrestore(&chv_lock, flags);
1415 }
1416
1417 chv_gpio_irq_unmask(d);
1418 return 0;
1419}
1420
1421static int chv_gpio_irq_type(struct irq_data *d, unsigned type)
1422{
1423 struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
1424 struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
1425 unsigned pin = irqd_to_hwirq(d);
1426 unsigned long flags;
1427 u32 value;
1428
1429 raw_spin_lock_irqsave(&chv_lock, flags);
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444 if (!chv_pad_locked(pctrl, pin)) {
1445 void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL1);
1446
1447 value = readl(reg);
1448 value &= ~CHV_PADCTRL1_INTWAKECFG_MASK;
1449 value &= ~CHV_PADCTRL1_INVRXTX_MASK;
1450
1451 if (type & IRQ_TYPE_EDGE_BOTH) {
1452 if ((type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH)
1453 value |= CHV_PADCTRL1_INTWAKECFG_BOTH;
1454 else if (type & IRQ_TYPE_EDGE_RISING)
1455 value |= CHV_PADCTRL1_INTWAKECFG_RISING;
1456 else if (type & IRQ_TYPE_EDGE_FALLING)
1457 value |= CHV_PADCTRL1_INTWAKECFG_FALLING;
1458 } else if (type & IRQ_TYPE_LEVEL_MASK) {
1459 value |= CHV_PADCTRL1_INTWAKECFG_LEVEL;
1460 if (type & IRQ_TYPE_LEVEL_LOW)
1461 value |= CHV_PADCTRL1_INVRXTX_RXDATA;
1462 }
1463
1464 chv_writel(value, reg);
1465 }
1466
1467 value = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
1468 value &= CHV_PADCTRL0_INTSEL_MASK;
1469 value >>= CHV_PADCTRL0_INTSEL_SHIFT;
1470
1471 pctrl->intr_lines[value] = pin;
1472
1473 if (type & IRQ_TYPE_EDGE_BOTH)
1474 irq_set_handler_locked(d, handle_edge_irq);
1475 else if (type & IRQ_TYPE_LEVEL_MASK)
1476 irq_set_handler_locked(d, handle_level_irq);
1477
1478 raw_spin_unlock_irqrestore(&chv_lock, flags);
1479
1480 return 0;
1481}
1482
1483static struct irq_chip chv_gpio_irqchip = {
1484 .name = "chv-gpio",
1485 .irq_startup = chv_gpio_irq_startup,
1486 .irq_ack = chv_gpio_irq_ack,
1487 .irq_mask = chv_gpio_irq_mask,
1488 .irq_unmask = chv_gpio_irq_unmask,
1489 .irq_set_type = chv_gpio_irq_type,
1490 .flags = IRQCHIP_SKIP_SET_WAKE,
1491};
1492
1493static void chv_gpio_irq_handler(struct irq_desc *desc)
1494{
1495 struct gpio_chip *gc = irq_desc_get_handler_data(desc);
1496 struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
1497 struct irq_chip *chip = irq_desc_get_chip(desc);
1498 unsigned long pending;
1499 u32 intr_line;
1500
1501 chained_irq_enter(chip, desc);
1502
1503 pending = readl(pctrl->regs + CHV_INTSTAT);
1504 for_each_set_bit(intr_line, &pending, pctrl->community->nirqs) {
1505 unsigned irq, offset;
1506
1507 offset = pctrl->intr_lines[intr_line];
1508 irq = irq_find_mapping(gc->irq.domain, offset);
1509 generic_handle_irq(irq);
1510 }
1511
1512 chained_irq_exit(chip, desc);
1513}
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523static const struct dmi_system_id chv_no_valid_mask[] = {
1524
1525 {
1526 .ident = "Intel_Strago based Chromebooks (All models)",
1527 .matches = {
1528 DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
1529 DMI_MATCH(DMI_PRODUCT_FAMILY, "Intel_Strago"),
1530 DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
1531 },
1532 },
1533 {
1534 .ident = "HP Chromebook 11 G5 (Setzer)",
1535 .matches = {
1536 DMI_MATCH(DMI_SYS_VENDOR, "HP"),
1537 DMI_MATCH(DMI_PRODUCT_NAME, "Setzer"),
1538 DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
1539 },
1540 },
1541 {
1542 .ident = "Acer Chromebook R11 (Cyan)",
1543 .matches = {
1544 DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
1545 DMI_MATCH(DMI_PRODUCT_NAME, "Cyan"),
1546 DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
1547 },
1548 },
1549 {
1550 .ident = "Samsung Chromebook 3 (Celes)",
1551 .matches = {
1552 DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
1553 DMI_MATCH(DMI_PRODUCT_NAME, "Celes"),
1554 DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
1555 },
1556 },
1557 {}
1558};
1559
1560static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
1561{
1562 const struct chv_gpio_pinrange *range;
1563 struct gpio_chip *chip = &pctrl->chip;
1564 bool need_valid_mask = !dmi_check_system(chv_no_valid_mask);
1565 const struct chv_community *community = pctrl->community;
1566 int ret, i, irq_base;
1567
1568 *chip = chv_gpio_chip;
1569
1570 chip->ngpio = community->pins[community->npins - 1].number + 1;
1571 chip->label = dev_name(pctrl->dev);
1572 chip->parent = pctrl->dev;
1573 chip->base = -1;
1574 chip->irq.need_valid_mask = need_valid_mask;
1575
1576 ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl);
1577 if (ret) {
1578 dev_err(pctrl->dev, "Failed to register gpiochip\n");
1579 return ret;
1580 }
1581
1582 for (i = 0; i < community->ngpio_ranges; i++) {
1583 range = &community->gpio_ranges[i];
1584 ret = gpiochip_add_pin_range(chip, dev_name(pctrl->dev),
1585 range->base, range->base,
1586 range->npins);
1587 if (ret) {
1588 dev_err(pctrl->dev, "failed to add GPIO pin range\n");
1589 return ret;
1590 }
1591 }
1592
1593
1594 for (i = 0; i < community->npins; i++) {
1595 const struct pinctrl_pin_desc *desc;
1596 u32 intsel;
1597
1598 desc = &community->pins[i];
1599
1600 intsel = readl(chv_padreg(pctrl, desc->number, CHV_PADCTRL0));
1601 intsel &= CHV_PADCTRL0_INTSEL_MASK;
1602 intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
1603
1604 if (need_valid_mask && intsel >= community->nirqs)
1605 clear_bit(i, chip->irq.valid_mask);
1606 }
1607
1608
1609
1610
1611
1612
1613
1614
1615 if (!need_valid_mask) {
1616
1617
1618
1619
1620 chv_writel(GENMASK(31, pctrl->community->nirqs),
1621 pctrl->regs + CHV_INTMASK);
1622 }
1623
1624
1625 chv_writel(0xffff, pctrl->regs + CHV_INTSTAT);
1626
1627 if (!need_valid_mask) {
1628 irq_base = devm_irq_alloc_descs(pctrl->dev, -1, 0,
1629 community->npins, NUMA_NO_NODE);
1630 if (irq_base < 0) {
1631 dev_err(pctrl->dev, "Failed to allocate IRQ numbers\n");
1632 return irq_base;
1633 }
1634 }
1635
1636 ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, 0,
1637 handle_bad_irq, IRQ_TYPE_NONE);
1638 if (ret) {
1639 dev_err(pctrl->dev, "failed to add IRQ chip\n");
1640 return ret;
1641 }
1642
1643 if (!need_valid_mask) {
1644 for (i = 0; i < community->ngpio_ranges; i++) {
1645 range = &community->gpio_ranges[i];
1646
1647 irq_domain_associate_many(chip->irq.domain, irq_base,
1648 range->base, range->npins);
1649 irq_base += range->npins;
1650 }
1651 }
1652
1653 gpiochip_set_chained_irqchip(chip, &chv_gpio_irqchip, irq,
1654 chv_gpio_irq_handler);
1655 return 0;
1656}
1657
1658static acpi_status chv_pinctrl_mmio_access_handler(u32 function,
1659 acpi_physical_address address, u32 bits, u64 *value,
1660 void *handler_context, void *region_context)
1661{
1662 struct chv_pinctrl *pctrl = region_context;
1663 unsigned long flags;
1664 acpi_status ret = AE_OK;
1665
1666 raw_spin_lock_irqsave(&chv_lock, flags);
1667
1668 if (function == ACPI_WRITE)
1669 chv_writel((u32)(*value), pctrl->regs + (u32)address);
1670 else if (function == ACPI_READ)
1671 *value = readl(pctrl->regs + (u32)address);
1672 else
1673 ret = AE_BAD_PARAMETER;
1674
1675 raw_spin_unlock_irqrestore(&chv_lock, flags);
1676
1677 return ret;
1678}
1679
1680static int chv_pinctrl_probe(struct platform_device *pdev)
1681{
1682 struct chv_pinctrl *pctrl;
1683 struct acpi_device *adev;
1684 struct resource *res;
1685 acpi_status status;
1686 int ret, irq, i;
1687
1688 adev = ACPI_COMPANION(&pdev->dev);
1689 if (!adev)
1690 return -ENODEV;
1691
1692 pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
1693 if (!pctrl)
1694 return -ENOMEM;
1695
1696 for (i = 0; i < ARRAY_SIZE(chv_communities); i++)
1697 if (!strcmp(adev->pnp.unique_id, chv_communities[i]->uid)) {
1698 pctrl->community = chv_communities[i];
1699 break;
1700 }
1701 if (i == ARRAY_SIZE(chv_communities))
1702 return -ENODEV;
1703
1704 pctrl->dev = &pdev->dev;
1705
1706#ifdef CONFIG_PM_SLEEP
1707 pctrl->saved_pin_context = devm_kcalloc(pctrl->dev,
1708 pctrl->community->npins, sizeof(*pctrl->saved_pin_context),
1709 GFP_KERNEL);
1710 if (!pctrl->saved_pin_context)
1711 return -ENOMEM;
1712#endif
1713
1714 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1715 pctrl->regs = devm_ioremap_resource(&pdev->dev, res);
1716 if (IS_ERR(pctrl->regs))
1717 return PTR_ERR(pctrl->regs);
1718
1719 irq = platform_get_irq(pdev, 0);
1720 if (irq < 0) {
1721 dev_err(&pdev->dev, "failed to get interrupt number\n");
1722 return irq;
1723 }
1724
1725 pctrl->pctldesc = chv_pinctrl_desc;
1726 pctrl->pctldesc.name = dev_name(&pdev->dev);
1727 pctrl->pctldesc.pins = pctrl->community->pins;
1728 pctrl->pctldesc.npins = pctrl->community->npins;
1729
1730 pctrl->pctldev = devm_pinctrl_register(&pdev->dev, &pctrl->pctldesc,
1731 pctrl);
1732 if (IS_ERR(pctrl->pctldev)) {
1733 dev_err(&pdev->dev, "failed to register pinctrl driver\n");
1734 return PTR_ERR(pctrl->pctldev);
1735 }
1736
1737 ret = chv_gpio_probe(pctrl, irq);
1738 if (ret)
1739 return ret;
1740
1741 status = acpi_install_address_space_handler(adev->handle,
1742 pctrl->community->acpi_space_id,
1743 chv_pinctrl_mmio_access_handler,
1744 NULL, pctrl);
1745 if (ACPI_FAILURE(status))
1746 dev_err(&pdev->dev, "failed to install ACPI addr space handler\n");
1747
1748 platform_set_drvdata(pdev, pctrl);
1749
1750 return 0;
1751}
1752
1753static int chv_pinctrl_remove(struct platform_device *pdev)
1754{
1755 struct chv_pinctrl *pctrl = platform_get_drvdata(pdev);
1756
1757 acpi_remove_address_space_handler(ACPI_COMPANION(&pdev->dev),
1758 pctrl->community->acpi_space_id,
1759 chv_pinctrl_mmio_access_handler);
1760
1761 return 0;
1762}
1763
1764#ifdef CONFIG_PM_SLEEP
1765static int chv_pinctrl_suspend_noirq(struct device *dev)
1766{
1767 struct platform_device *pdev = to_platform_device(dev);
1768 struct chv_pinctrl *pctrl = platform_get_drvdata(pdev);
1769 unsigned long flags;
1770 int i;
1771
1772 raw_spin_lock_irqsave(&chv_lock, flags);
1773
1774 pctrl->saved_intmask = readl(pctrl->regs + CHV_INTMASK);
1775
1776 for (i = 0; i < pctrl->community->npins; i++) {
1777 const struct pinctrl_pin_desc *desc;
1778 struct chv_pin_context *ctx;
1779 void __iomem *reg;
1780
1781 desc = &pctrl->community->pins[i];
1782 if (chv_pad_locked(pctrl, desc->number))
1783 continue;
1784
1785 ctx = &pctrl->saved_pin_context[i];
1786
1787 reg = chv_padreg(pctrl, desc->number, CHV_PADCTRL0);
1788 ctx->padctrl0 = readl(reg) & ~CHV_PADCTRL0_GPIORXSTATE;
1789
1790 reg = chv_padreg(pctrl, desc->number, CHV_PADCTRL1);
1791 ctx->padctrl1 = readl(reg);
1792 }
1793
1794 raw_spin_unlock_irqrestore(&chv_lock, flags);
1795
1796 return 0;
1797}
1798
1799static int chv_pinctrl_resume_noirq(struct device *dev)
1800{
1801 struct platform_device *pdev = to_platform_device(dev);
1802 struct chv_pinctrl *pctrl = platform_get_drvdata(pdev);
1803 unsigned long flags;
1804 int i;
1805
1806 raw_spin_lock_irqsave(&chv_lock, flags);
1807
1808
1809
1810
1811
1812
1813 chv_writel(0, pctrl->regs + CHV_INTMASK);
1814
1815 for (i = 0; i < pctrl->community->npins; i++) {
1816 const struct pinctrl_pin_desc *desc;
1817 const struct chv_pin_context *ctx;
1818 void __iomem *reg;
1819 u32 val;
1820
1821 desc = &pctrl->community->pins[i];
1822 if (chv_pad_locked(pctrl, desc->number))
1823 continue;
1824
1825 ctx = &pctrl->saved_pin_context[i];
1826
1827
1828 reg = chv_padreg(pctrl, desc->number, CHV_PADCTRL0);
1829 val = readl(reg) & ~CHV_PADCTRL0_GPIORXSTATE;
1830 if (ctx->padctrl0 != val) {
1831 chv_writel(ctx->padctrl0, reg);
1832 dev_dbg(pctrl->dev, "restored pin %2u ctrl0 0x%08x\n",
1833 desc->number, readl(reg));
1834 }
1835
1836 reg = chv_padreg(pctrl, desc->number, CHV_PADCTRL1);
1837 val = readl(reg);
1838 if (ctx->padctrl1 != val) {
1839 chv_writel(ctx->padctrl1, reg);
1840 dev_dbg(pctrl->dev, "restored pin %2u ctrl1 0x%08x\n",
1841 desc->number, readl(reg));
1842 }
1843 }
1844
1845
1846
1847
1848
1849 chv_writel(0xffff, pctrl->regs + CHV_INTSTAT);
1850 chv_writel(pctrl->saved_intmask, pctrl->regs + CHV_INTMASK);
1851
1852 raw_spin_unlock_irqrestore(&chv_lock, flags);
1853
1854 return 0;
1855}
1856#endif
1857
1858static const struct dev_pm_ops chv_pinctrl_pm_ops = {
1859 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(chv_pinctrl_suspend_noirq,
1860 chv_pinctrl_resume_noirq)
1861};
1862
1863static const struct acpi_device_id chv_pinctrl_acpi_match[] = {
1864 { "INT33FF" },
1865 { }
1866};
1867MODULE_DEVICE_TABLE(acpi, chv_pinctrl_acpi_match);
1868
1869static struct platform_driver chv_pinctrl_driver = {
1870 .probe = chv_pinctrl_probe,
1871 .remove = chv_pinctrl_remove,
1872 .driver = {
1873 .name = "cherryview-pinctrl",
1874 .pm = &chv_pinctrl_pm_ops,
1875 .acpi_match_table = chv_pinctrl_acpi_match,
1876 },
1877};
1878
1879static int __init chv_pinctrl_init(void)
1880{
1881 return platform_driver_register(&chv_pinctrl_driver);
1882}
1883subsys_initcall(chv_pinctrl_init);
1884
1885static void __exit chv_pinctrl_exit(void)
1886{
1887 platform_driver_unregister(&chv_pinctrl_driver);
1888}
1889module_exit(chv_pinctrl_exit);
1890
1891MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
1892MODULE_DESCRIPTION("Intel Cherryview/Braswell pinctrl driver");
1893MODULE_LICENSE("GPL v2");
1894
