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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright 2017 Impinj, Inc
4 * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
5 *
6 * Based on the code of analogus driver:
7 *
8 * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
9 */
10
11#include <linux/clk.h>
12#include <linux/of_device.h>
13#include <linux/platform_device.h>
14#include <linux/pm_domain.h>
15#include <linux/regmap.h>
16#include <linux/regulator/consumer.h>
17#include <linux/sizes.h>
18#include <dt-bindings/power/imx7-power.h>
19#include <dt-bindings/power/imx8mq-power.h>
20
21#define GPC_LPCR_A_CORE_BSC 0x000
22
23#define GPC_PGC_CPU_MAPPING 0x0ec
24
25#define IMX7_USB_HSIC_PHY_A_CORE_DOMAIN BIT(6)
26#define IMX7_USB_OTG2_PHY_A_CORE_DOMAIN BIT(5)
27#define IMX7_USB_OTG1_PHY_A_CORE_DOMAIN BIT(4)
28#define IMX7_PCIE_PHY_A_CORE_DOMAIN BIT(3)
29#define IMX7_MIPI_PHY_A_CORE_DOMAIN BIT(2)
30
31#define IMX8M_PCIE2_A53_DOMAIN BIT(15)
32#define IMX8M_MIPI_CSI2_A53_DOMAIN BIT(14)
33#define IMX8M_MIPI_CSI1_A53_DOMAIN BIT(13)
34#define IMX8M_DISP_A53_DOMAIN BIT(12)
35#define IMX8M_HDMI_A53_DOMAIN BIT(11)
36#define IMX8M_VPU_A53_DOMAIN BIT(10)
37#define IMX8M_GPU_A53_DOMAIN BIT(9)
38#define IMX8M_DDR2_A53_DOMAIN BIT(8)
39#define IMX8M_DDR1_A53_DOMAIN BIT(7)
40#define IMX8M_OTG2_A53_DOMAIN BIT(5)
41#define IMX8M_OTG1_A53_DOMAIN BIT(4)
42#define IMX8M_PCIE1_A53_DOMAIN BIT(3)
43#define IMX8M_MIPI_A53_DOMAIN BIT(2)
44
45#define GPC_PU_PGC_SW_PUP_REQ 0x0f8
46#define GPC_PU_PGC_SW_PDN_REQ 0x104
47
48#define IMX7_USB_HSIC_PHY_SW_Pxx_REQ BIT(4)
49#define IMX7_USB_OTG2_PHY_SW_Pxx_REQ BIT(3)
50#define IMX7_USB_OTG1_PHY_SW_Pxx_REQ BIT(2)
51#define IMX7_PCIE_PHY_SW_Pxx_REQ BIT(1)
52#define IMX7_MIPI_PHY_SW_Pxx_REQ BIT(0)
53
54#define IMX8M_PCIE2_SW_Pxx_REQ BIT(13)
55#define IMX8M_MIPI_CSI2_SW_Pxx_REQ BIT(12)
56#define IMX8M_MIPI_CSI1_SW_Pxx_REQ BIT(11)
57#define IMX8M_DISP_SW_Pxx_REQ BIT(10)
58#define IMX8M_HDMI_SW_Pxx_REQ BIT(9)
59#define IMX8M_VPU_SW_Pxx_REQ BIT(8)
60#define IMX8M_GPU_SW_Pxx_REQ BIT(7)
61#define IMX8M_DDR2_SW_Pxx_REQ BIT(6)
62#define IMX8M_DDR1_SW_Pxx_REQ BIT(5)
63#define IMX8M_OTG2_SW_Pxx_REQ BIT(3)
64#define IMX8M_OTG1_SW_Pxx_REQ BIT(2)
65#define IMX8M_PCIE1_SW_Pxx_REQ BIT(1)
66#define IMX8M_MIPI_SW_Pxx_REQ BIT(0)
67
68#define GPC_M4_PU_PDN_FLG 0x1bc
69
70#define GPC_PU_PWRHSK 0x1fc
71
72#define IMX8M_GPU_HSK_PWRDNREQN BIT(6)
73#define IMX8M_VPU_HSK_PWRDNREQN BIT(5)
74#define IMX8M_DISP_HSK_PWRDNREQN BIT(4)
75
76/*
77 * The PGC offset values in Reference Manual
78 * (Rev. 1, 01/2018 and the older ones) GPC chapter's
79 * GPC_PGC memory map are incorrect, below offset
80 * values are from design RTL.
81 */
82#define IMX7_PGC_MIPI 16
83#define IMX7_PGC_PCIE 17
84#define IMX7_PGC_USB_HSIC 20
85
86#define IMX8M_PGC_MIPI 16
87#define IMX8M_PGC_PCIE1 17
88#define IMX8M_PGC_OTG1 18
89#define IMX8M_PGC_OTG2 19
90#define IMX8M_PGC_DDR1 21
91#define IMX8M_PGC_GPU 23
92#define IMX8M_PGC_VPU 24
93#define IMX8M_PGC_DISP 26
94#define IMX8M_PGC_MIPI_CSI1 27
95#define IMX8M_PGC_MIPI_CSI2 28
96#define IMX8M_PGC_PCIE2 29
97
98#define GPC_PGC_CTRL(n) (0x800 + (n) * 0x40)
99#define GPC_PGC_SR(n) (GPC_PGC_CTRL(n) + 0xc)
100
101#define GPC_PGC_CTRL_PCR BIT(0)
102
103#define GPC_CLK_MAX 6
104
105struct imx_pgc_domain {
106 struct generic_pm_domain genpd;
107 struct regmap *regmap;
108 struct regulator *regulator;
109 struct clk *clk[GPC_CLK_MAX];
110 int num_clks;
111
112 unsigned int pgc;
113
114 const struct {
115 u32 pxx;
116 u32 map;
117 u32 hsk;
118 } bits;
119
120 const int voltage;
121 struct device *dev;
122};
123
124struct imx_pgc_domain_data {
125 const struct imx_pgc_domain *domains;
126 size_t domains_num;
127 const struct regmap_access_table *reg_access_table;
128};
129
130static int imx_gpc_pu_pgc_sw_pxx_req(struct generic_pm_domain *genpd,
131 bool on)
132{
133 struct imx_pgc_domain *domain = container_of(genpd,
134 struct imx_pgc_domain,
135 genpd);
136 unsigned int offset = on ?
137 GPC_PU_PGC_SW_PUP_REQ : GPC_PU_PGC_SW_PDN_REQ;
138 const bool enable_power_control = !on;
139 const bool has_regulator = !IS_ERR(domain->regulator);
140 int i, ret = 0;
141 u32 pxx_req;
142
143 regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING,
144 domain->bits.map, domain->bits.map);
145
146 if (has_regulator && on) {
147 ret = regulator_enable(domain->regulator);
148 if (ret) {
149 dev_err(domain->dev, "failed to enable regulator\n");
150 goto unmap;
151 }
152 }
153
154 /* Enable reset clocks for all devices in the domain */
155 for (i = 0; i < domain->num_clks; i++)
156 clk_prepare_enable(domain->clk[i]);
157
158 if (enable_power_control)
159 regmap_update_bits(domain->regmap, GPC_PGC_CTRL(domain->pgc),
160 GPC_PGC_CTRL_PCR, GPC_PGC_CTRL_PCR);
161
162 if (domain->bits.hsk)
163 regmap_update_bits(domain->regmap, GPC_PU_PWRHSK,
164 domain->bits.hsk, on ? domain->bits.hsk : 0);
165
166 regmap_update_bits(domain->regmap, offset,
167 domain->bits.pxx, domain->bits.pxx);
168
169 /*
170 * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait
171 * for PUP_REQ/PDN_REQ bit to be cleared
172 */
173 ret = regmap_read_poll_timeout(domain->regmap, offset, pxx_req,
174 !(pxx_req & domain->bits.pxx),
175 0, USEC_PER_MSEC);
176 if (ret) {
177 dev_err(domain->dev, "failed to command PGC\n");
178 /*
179 * If we were in a process of enabling a
180 * domain and failed we might as well disable
181 * the regulator we just enabled. And if it
182 * was the opposite situation and we failed to
183 * power down -- keep the regulator on
184 */
185 on = !on;
186 }
187
188 if (enable_power_control)
189 regmap_update_bits(domain->regmap, GPC_PGC_CTRL(domain->pgc),
190 GPC_PGC_CTRL_PCR, 0);
191
192 /* Disable reset clocks for all devices in the domain */
193 for (i = 0; i < domain->num_clks; i++)
194 clk_disable_unprepare(domain->clk[i]);
195
196 if (has_regulator && !on) {
197 int err;
198
199 err = regulator_disable(domain->regulator);
200 if (err)
201 dev_err(domain->dev,
202 "failed to disable regulator: %d\n", err);
203 /* Preserve earlier error code */
204 ret = ret ?: err;
205 }
206unmap:
207 regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING,
208 domain->bits.map, 0);
209 return ret;
210}
211
212static int imx_gpc_pu_pgc_sw_pup_req(struct generic_pm_domain *genpd)
213{
214 return imx_gpc_pu_pgc_sw_pxx_req(genpd, true);
215}
216
217static int imx_gpc_pu_pgc_sw_pdn_req(struct generic_pm_domain *genpd)
218{
219 return imx_gpc_pu_pgc_sw_pxx_req(genpd, false);
220}
221
222static const struct imx_pgc_domain imx7_pgc_domains[] = {
223 [IMX7_POWER_DOMAIN_MIPI_PHY] = {
224 .genpd = {
225 .name = "mipi-phy",
226 },
227 .bits = {
228 .pxx = IMX7_MIPI_PHY_SW_Pxx_REQ,
229 .map = IMX7_MIPI_PHY_A_CORE_DOMAIN,
230 },
231 .voltage = 1000000,
232 .pgc = IMX7_PGC_MIPI,
233 },
234
235 [IMX7_POWER_DOMAIN_PCIE_PHY] = {
236 .genpd = {
237 .name = "pcie-phy",
238 },
239 .bits = {
240 .pxx = IMX7_PCIE_PHY_SW_Pxx_REQ,
241 .map = IMX7_PCIE_PHY_A_CORE_DOMAIN,
242 },
243 .voltage = 1000000,
244 .pgc = IMX7_PGC_PCIE,
245 },
246
247 [IMX7_POWER_DOMAIN_USB_HSIC_PHY] = {
248 .genpd = {
249 .name = "usb-hsic-phy",
250 },
251 .bits = {
252 .pxx = IMX7_USB_HSIC_PHY_SW_Pxx_REQ,
253 .map = IMX7_USB_HSIC_PHY_A_CORE_DOMAIN,
254 },
255 .voltage = 1200000,
256 .pgc = IMX7_PGC_USB_HSIC,
257 },
258};
259
260static const struct regmap_range imx7_yes_ranges[] = {
261 regmap_reg_range(GPC_LPCR_A_CORE_BSC,
262 GPC_M4_PU_PDN_FLG),
263 regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_MIPI),
264 GPC_PGC_SR(IMX7_PGC_MIPI)),
265 regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_PCIE),
266 GPC_PGC_SR(IMX7_PGC_PCIE)),
267 regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_USB_HSIC),
268 GPC_PGC_SR(IMX7_PGC_USB_HSIC)),
269};
270
271static const struct regmap_access_table imx7_access_table = {
272 .yes_ranges = imx7_yes_ranges,
273 .n_yes_ranges = ARRAY_SIZE(imx7_yes_ranges),
274};
275
276static const struct imx_pgc_domain_data imx7_pgc_domain_data = {
277 .domains = imx7_pgc_domains,
278 .domains_num = ARRAY_SIZE(imx7_pgc_domains),
279 .reg_access_table = &imx7_access_table,
280};
281
282static const struct imx_pgc_domain imx8m_pgc_domains[] = {
283 [IMX8M_POWER_DOMAIN_MIPI] = {
284 .genpd = {
285 .name = "mipi",
286 },
287 .bits = {
288 .pxx = IMX8M_MIPI_SW_Pxx_REQ,
289 .map = IMX8M_MIPI_A53_DOMAIN,
290 },
291 .pgc = IMX8M_PGC_MIPI,
292 },
293
294 [IMX8M_POWER_DOMAIN_PCIE1] = {
295 .genpd = {
296 .name = "pcie1",
297 },
298 .bits = {
299 .pxx = IMX8M_PCIE1_SW_Pxx_REQ,
300 .map = IMX8M_PCIE1_A53_DOMAIN,
301 },
302 .pgc = IMX8M_PGC_PCIE1,
303 },
304
305 [IMX8M_POWER_DOMAIN_USB_OTG1] = {
306 .genpd = {
307 .name = "usb-otg1",
308 },
309 .bits = {
310 .pxx = IMX8M_OTG1_SW_Pxx_REQ,
311 .map = IMX8M_OTG1_A53_DOMAIN,
312 },
313 .pgc = IMX8M_PGC_OTG1,
314 },
315
316 [IMX8M_POWER_DOMAIN_USB_OTG2] = {
317 .genpd = {
318 .name = "usb-otg2",
319 },
320 .bits = {
321 .pxx = IMX8M_OTG2_SW_Pxx_REQ,
322 .map = IMX8M_OTG2_A53_DOMAIN,
323 },
324 .pgc = IMX8M_PGC_OTG2,
325 },
326
327 [IMX8M_POWER_DOMAIN_DDR1] = {
328 .genpd = {
329 .name = "ddr1",
330 },
331 .bits = {
332 .pxx = IMX8M_DDR1_SW_Pxx_REQ,
333 .map = IMX8M_DDR2_A53_DOMAIN,
334 },
335 .pgc = IMX8M_PGC_DDR1,
336 },
337
338 [IMX8M_POWER_DOMAIN_GPU] = {
339 .genpd = {
340 .name = "gpu",
341 },
342 .bits = {
343 .pxx = IMX8M_GPU_SW_Pxx_REQ,
344 .map = IMX8M_GPU_A53_DOMAIN,
345 .hsk = IMX8M_GPU_HSK_PWRDNREQN,
346 },
347 .pgc = IMX8M_PGC_GPU,
348 },
349
350 [IMX8M_POWER_DOMAIN_VPU] = {
351 .genpd = {
352 .name = "vpu",
353 },
354 .bits = {
355 .pxx = IMX8M_VPU_SW_Pxx_REQ,
356 .map = IMX8M_VPU_A53_DOMAIN,
357 .hsk = IMX8M_VPU_HSK_PWRDNREQN,
358 },
359 .pgc = IMX8M_PGC_VPU,
360 },
361
362 [IMX8M_POWER_DOMAIN_DISP] = {
363 .genpd = {
364 .name = "disp",
365 },
366 .bits = {
367 .pxx = IMX8M_DISP_SW_Pxx_REQ,
368 .map = IMX8M_DISP_A53_DOMAIN,
369 .hsk = IMX8M_DISP_HSK_PWRDNREQN,
370 },
371 .pgc = IMX8M_PGC_DISP,
372 },
373
374 [IMX8M_POWER_DOMAIN_MIPI_CSI1] = {
375 .genpd = {
376 .name = "mipi-csi1",
377 },
378 .bits = {
379 .pxx = IMX8M_MIPI_CSI1_SW_Pxx_REQ,
380 .map = IMX8M_MIPI_CSI1_A53_DOMAIN,
381 },
382 .pgc = IMX8M_PGC_MIPI_CSI1,
383 },
384
385 [IMX8M_POWER_DOMAIN_MIPI_CSI2] = {
386 .genpd = {
387 .name = "mipi-csi2",
388 },
389 .bits = {
390 .pxx = IMX8M_MIPI_CSI2_SW_Pxx_REQ,
391 .map = IMX8M_MIPI_CSI2_A53_DOMAIN,
392 },
393 .pgc = IMX8M_PGC_MIPI_CSI2,
394 },
395
396 [IMX8M_POWER_DOMAIN_PCIE2] = {
397 .genpd = {
398 .name = "pcie2",
399 },
400 .bits = {
401 .pxx = IMX8M_PCIE2_SW_Pxx_REQ,
402 .map = IMX8M_PCIE2_A53_DOMAIN,
403 },
404 .pgc = IMX8M_PGC_PCIE2,
405 },
406};
407
408static const struct regmap_range imx8m_yes_ranges[] = {
409 regmap_reg_range(GPC_LPCR_A_CORE_BSC,
410 GPC_PU_PWRHSK),
411 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI),
412 GPC_PGC_SR(IMX8M_PGC_MIPI)),
413 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE1),
414 GPC_PGC_SR(IMX8M_PGC_PCIE1)),
415 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG1),
416 GPC_PGC_SR(IMX8M_PGC_OTG1)),
417 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG2),
418 GPC_PGC_SR(IMX8M_PGC_OTG2)),
419 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DDR1),
420 GPC_PGC_SR(IMX8M_PGC_DDR1)),
421 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_GPU),
422 GPC_PGC_SR(IMX8M_PGC_GPU)),
423 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_VPU),
424 GPC_PGC_SR(IMX8M_PGC_VPU)),
425 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DISP),
426 GPC_PGC_SR(IMX8M_PGC_DISP)),
427 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI1),
428 GPC_PGC_SR(IMX8M_PGC_MIPI_CSI1)),
429 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI2),
430 GPC_PGC_SR(IMX8M_PGC_MIPI_CSI2)),
431 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE2),
432 GPC_PGC_SR(IMX8M_PGC_PCIE2)),
433};
434
435static const struct regmap_access_table imx8m_access_table = {
436 .yes_ranges = imx8m_yes_ranges,
437 .n_yes_ranges = ARRAY_SIZE(imx8m_yes_ranges),
438};
439
440static const struct imx_pgc_domain_data imx8m_pgc_domain_data = {
441 .domains = imx8m_pgc_domains,
442 .domains_num = ARRAY_SIZE(imx8m_pgc_domains),
443 .reg_access_table = &imx8m_access_table,
444};
445
446static int imx_pgc_get_clocks(struct imx_pgc_domain *domain)
447{
448 int i, ret;
449
450 for (i = 0; ; i++) {
451 struct clk *clk = of_clk_get(domain->dev->of_node, i);
452 if (IS_ERR(clk))
453 break;
454 if (i >= GPC_CLK_MAX) {
455 dev_err(domain->dev, "more than %d clocks\n",
456 GPC_CLK_MAX);
457 ret = -EINVAL;
458 goto clk_err;
459 }
460 domain->clk[i] = clk;
461 }
462 domain->num_clks = i;
463
464 return 0;
465
466clk_err:
467 while (i--)
468 clk_put(domain->clk[i]);
469
470 return ret;
471}
472
473static void imx_pgc_put_clocks(struct imx_pgc_domain *domain)
474{
475 int i;
476
477 for (i = domain->num_clks - 1; i >= 0; i--)
478 clk_put(domain->clk[i]);
479}
480
481static int imx_pgc_domain_probe(struct platform_device *pdev)
482{
483 struct imx_pgc_domain *domain = pdev->dev.platform_data;
484 int ret;
485
486 domain->dev = &pdev->dev;
487
488 domain->regulator = devm_regulator_get_optional(domain->dev, "power");
489 if (IS_ERR(domain->regulator)) {
490 if (PTR_ERR(domain->regulator) != -ENODEV) {
491 if (PTR_ERR(domain->regulator) != -EPROBE_DEFER)
492 dev_err(domain->dev, "Failed to get domain's regulator\n");
493 return PTR_ERR(domain->regulator);
494 }
495 } else if (domain->voltage) {
496 regulator_set_voltage(domain->regulator,
497 domain->voltage, domain->voltage);
498 }
499
500 ret = imx_pgc_get_clocks(domain);
501 if (ret) {
502 if (ret != -EPROBE_DEFER)
503 dev_err(domain->dev, "Failed to get domain's clocks\n");
504 return ret;
505 }
506
507 ret = pm_genpd_init(&domain->genpd, NULL, true);
508 if (ret) {
509 dev_err(domain->dev, "Failed to init power domain\n");
510 imx_pgc_put_clocks(domain);
511 return ret;
512 }
513
514 ret = of_genpd_add_provider_simple(domain->dev->of_node,
515 &domain->genpd);
516 if (ret) {
517 dev_err(domain->dev, "Failed to add genpd provider\n");
518 pm_genpd_remove(&domain->genpd);
519 imx_pgc_put_clocks(domain);
520 }
521
522 return ret;
523}
524
525static int imx_pgc_domain_remove(struct platform_device *pdev)
526{
527 struct imx_pgc_domain *domain = pdev->dev.platform_data;
528
529 of_genpd_del_provider(domain->dev->of_node);
530 pm_genpd_remove(&domain->genpd);
531 imx_pgc_put_clocks(domain);
532
533 return 0;
534}
535
536static const struct platform_device_id imx_pgc_domain_id[] = {
537 { "imx-pgc-domain", },
538 { },
539};
540
541static struct platform_driver imx_pgc_domain_driver = {
542 .driver = {
543 .name = "imx-pgc",
544 },
545 .probe = imx_pgc_domain_probe,
546 .remove = imx_pgc_domain_remove,
547 .id_table = imx_pgc_domain_id,
548};
549builtin_platform_driver(imx_pgc_domain_driver)
550
551static int imx_gpcv2_probe(struct platform_device *pdev)
552{
553 const struct imx_pgc_domain_data *domain_data =
554 of_device_get_match_data(&pdev->dev);
555
556 struct regmap_config regmap_config = {
557 .reg_bits = 32,
558 .val_bits = 32,
559 .reg_stride = 4,
560 .rd_table = domain_data->reg_access_table,
561 .wr_table = domain_data->reg_access_table,
562 .max_register = SZ_4K,
563 };
564 struct device *dev = &pdev->dev;
565 struct device_node *pgc_np, *np;
566 struct regmap *regmap;
567 void __iomem *base;
568 int ret;
569
570 pgc_np = of_get_child_by_name(dev->of_node, "pgc");
571 if (!pgc_np) {
572 dev_err(dev, "No power domains specified in DT\n");
573 return -EINVAL;
574 }
575
576 base = devm_platform_ioremap_resource(pdev, 0);
577 if (IS_ERR(base))
578 return PTR_ERR(base);
579
580 regmap = devm_regmap_init_mmio(dev, base, ®map_config);
581 if (IS_ERR(regmap)) {
582 ret = PTR_ERR(regmap);
583 dev_err(dev, "failed to init regmap (%d)\n", ret);
584 return ret;
585 }
586
587 for_each_child_of_node(pgc_np, np) {
588 struct platform_device *pd_pdev;
589 struct imx_pgc_domain *domain;
590 u32 domain_index;
591
592 ret = of_property_read_u32(np, "reg", &domain_index);
593 if (ret) {
594 dev_err(dev, "Failed to read 'reg' property\n");
595 of_node_put(np);
596 return ret;
597 }
598
599 if (domain_index >= domain_data->domains_num) {
600 dev_warn(dev,
601 "Domain index %d is out of bounds\n",
602 domain_index);
603 continue;
604 }
605
606 pd_pdev = platform_device_alloc("imx-pgc-domain",
607 domain_index);
608 if (!pd_pdev) {
609 dev_err(dev, "Failed to allocate platform device\n");
610 of_node_put(np);
611 return -ENOMEM;
612 }
613
614 ret = platform_device_add_data(pd_pdev,
615 &domain_data->domains[domain_index],
616 sizeof(domain_data->domains[domain_index]));
617 if (ret) {
618 platform_device_put(pd_pdev);
619 of_node_put(np);
620 return ret;
621 }
622
623 domain = pd_pdev->dev.platform_data;
624 domain->regmap = regmap;
625 domain->genpd.power_on = imx_gpc_pu_pgc_sw_pup_req;
626 domain->genpd.power_off = imx_gpc_pu_pgc_sw_pdn_req;
627
628 pd_pdev->dev.parent = dev;
629 pd_pdev->dev.of_node = np;
630
631 ret = platform_device_add(pd_pdev);
632 if (ret) {
633 platform_device_put(pd_pdev);
634 of_node_put(np);
635 return ret;
636 }
637 }
638
639 return 0;
640}
641
642static const struct of_device_id imx_gpcv2_dt_ids[] = {
643 { .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
644 { .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
645 { }
646};
647
648static struct platform_driver imx_gpc_driver = {
649 .driver = {
650 .name = "imx-gpcv2",
651 .of_match_table = imx_gpcv2_dt_ids,
652 },
653 .probe = imx_gpcv2_probe,
654};
655builtin_platform_driver(imx_gpc_driver)
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright 2017 Impinj, Inc
4 * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
5 *
6 * Based on the code of analogus driver:
7 *
8 * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
9 */
10
11#include <linux/clk.h>
12#include <linux/of_device.h>
13#include <linux/platform_device.h>
14#include <linux/pm_domain.h>
15#include <linux/pm_runtime.h>
16#include <linux/regmap.h>
17#include <linux/regulator/consumer.h>
18#include <linux/reset.h>
19#include <linux/sizes.h>
20#include <dt-bindings/power/imx7-power.h>
21#include <dt-bindings/power/imx8mq-power.h>
22#include <dt-bindings/power/imx8mm-power.h>
23#include <dt-bindings/power/imx8mn-power.h>
24#include <dt-bindings/power/imx8mp-power.h>
25
26#define GPC_LPCR_A_CORE_BSC 0x000
27
28#define GPC_PGC_CPU_MAPPING 0x0ec
29#define IMX8MP_GPC_PGC_CPU_MAPPING 0x1cc
30
31#define IMX7_USB_HSIC_PHY_A_CORE_DOMAIN BIT(6)
32#define IMX7_USB_OTG2_PHY_A_CORE_DOMAIN BIT(5)
33#define IMX7_USB_OTG1_PHY_A_CORE_DOMAIN BIT(4)
34#define IMX7_PCIE_PHY_A_CORE_DOMAIN BIT(3)
35#define IMX7_MIPI_PHY_A_CORE_DOMAIN BIT(2)
36
37#define IMX8M_PCIE2_A53_DOMAIN BIT(15)
38#define IMX8M_MIPI_CSI2_A53_DOMAIN BIT(14)
39#define IMX8M_MIPI_CSI1_A53_DOMAIN BIT(13)
40#define IMX8M_DISP_A53_DOMAIN BIT(12)
41#define IMX8M_HDMI_A53_DOMAIN BIT(11)
42#define IMX8M_VPU_A53_DOMAIN BIT(10)
43#define IMX8M_GPU_A53_DOMAIN BIT(9)
44#define IMX8M_DDR2_A53_DOMAIN BIT(8)
45#define IMX8M_DDR1_A53_DOMAIN BIT(7)
46#define IMX8M_OTG2_A53_DOMAIN BIT(5)
47#define IMX8M_OTG1_A53_DOMAIN BIT(4)
48#define IMX8M_PCIE1_A53_DOMAIN BIT(3)
49#define IMX8M_MIPI_A53_DOMAIN BIT(2)
50
51#define IMX8MM_VPUH1_A53_DOMAIN BIT(15)
52#define IMX8MM_VPUG2_A53_DOMAIN BIT(14)
53#define IMX8MM_VPUG1_A53_DOMAIN BIT(13)
54#define IMX8MM_DISPMIX_A53_DOMAIN BIT(12)
55#define IMX8MM_VPUMIX_A53_DOMAIN BIT(10)
56#define IMX8MM_GPUMIX_A53_DOMAIN BIT(9)
57#define IMX8MM_GPU_A53_DOMAIN (BIT(8) | BIT(11))
58#define IMX8MM_DDR1_A53_DOMAIN BIT(7)
59#define IMX8MM_OTG2_A53_DOMAIN BIT(5)
60#define IMX8MM_OTG1_A53_DOMAIN BIT(4)
61#define IMX8MM_PCIE_A53_DOMAIN BIT(3)
62#define IMX8MM_MIPI_A53_DOMAIN BIT(2)
63
64#define IMX8MN_DISPMIX_A53_DOMAIN BIT(12)
65#define IMX8MN_GPUMIX_A53_DOMAIN BIT(9)
66#define IMX8MN_DDR1_A53_DOMAIN BIT(7)
67#define IMX8MN_OTG1_A53_DOMAIN BIT(4)
68#define IMX8MN_MIPI_A53_DOMAIN BIT(2)
69
70#define IMX8MP_MEDIA_ISPDWP_A53_DOMAIN BIT(20)
71#define IMX8MP_HSIOMIX_A53_DOMAIN BIT(19)
72#define IMX8MP_MIPI_PHY2_A53_DOMAIN BIT(18)
73#define IMX8MP_HDMI_PHY_A53_DOMAIN BIT(17)
74#define IMX8MP_HDMIMIX_A53_DOMAIN BIT(16)
75#define IMX8MP_VPU_VC8000E_A53_DOMAIN BIT(15)
76#define IMX8MP_VPU_G2_A53_DOMAIN BIT(14)
77#define IMX8MP_VPU_G1_A53_DOMAIN BIT(13)
78#define IMX8MP_MEDIAMIX_A53_DOMAIN BIT(12)
79#define IMX8MP_GPU3D_A53_DOMAIN BIT(11)
80#define IMX8MP_VPUMIX_A53_DOMAIN BIT(10)
81#define IMX8MP_GPUMIX_A53_DOMAIN BIT(9)
82#define IMX8MP_GPU2D_A53_DOMAIN BIT(8)
83#define IMX8MP_AUDIOMIX_A53_DOMAIN BIT(7)
84#define IMX8MP_MLMIX_A53_DOMAIN BIT(6)
85#define IMX8MP_USB2_PHY_A53_DOMAIN BIT(5)
86#define IMX8MP_USB1_PHY_A53_DOMAIN BIT(4)
87#define IMX8MP_PCIE_PHY_A53_DOMAIN BIT(3)
88#define IMX8MP_MIPI_PHY1_A53_DOMAIN BIT(2)
89
90#define IMX8MP_GPC_PU_PGC_SW_PUP_REQ 0x0d8
91#define IMX8MP_GPC_PU_PGC_SW_PDN_REQ 0x0e4
92
93#define GPC_PU_PGC_SW_PUP_REQ 0x0f8
94#define GPC_PU_PGC_SW_PDN_REQ 0x104
95
96#define IMX7_USB_HSIC_PHY_SW_Pxx_REQ BIT(4)
97#define IMX7_USB_OTG2_PHY_SW_Pxx_REQ BIT(3)
98#define IMX7_USB_OTG1_PHY_SW_Pxx_REQ BIT(2)
99#define IMX7_PCIE_PHY_SW_Pxx_REQ BIT(1)
100#define IMX7_MIPI_PHY_SW_Pxx_REQ BIT(0)
101
102#define IMX8M_PCIE2_SW_Pxx_REQ BIT(13)
103#define IMX8M_MIPI_CSI2_SW_Pxx_REQ BIT(12)
104#define IMX8M_MIPI_CSI1_SW_Pxx_REQ BIT(11)
105#define IMX8M_DISP_SW_Pxx_REQ BIT(10)
106#define IMX8M_HDMI_SW_Pxx_REQ BIT(9)
107#define IMX8M_VPU_SW_Pxx_REQ BIT(8)
108#define IMX8M_GPU_SW_Pxx_REQ BIT(7)
109#define IMX8M_DDR2_SW_Pxx_REQ BIT(6)
110#define IMX8M_DDR1_SW_Pxx_REQ BIT(5)
111#define IMX8M_OTG2_SW_Pxx_REQ BIT(3)
112#define IMX8M_OTG1_SW_Pxx_REQ BIT(2)
113#define IMX8M_PCIE1_SW_Pxx_REQ BIT(1)
114#define IMX8M_MIPI_SW_Pxx_REQ BIT(0)
115
116#define IMX8MM_VPUH1_SW_Pxx_REQ BIT(13)
117#define IMX8MM_VPUG2_SW_Pxx_REQ BIT(12)
118#define IMX8MM_VPUG1_SW_Pxx_REQ BIT(11)
119#define IMX8MM_DISPMIX_SW_Pxx_REQ BIT(10)
120#define IMX8MM_VPUMIX_SW_Pxx_REQ BIT(8)
121#define IMX8MM_GPUMIX_SW_Pxx_REQ BIT(7)
122#define IMX8MM_GPU_SW_Pxx_REQ (BIT(6) | BIT(9))
123#define IMX8MM_DDR1_SW_Pxx_REQ BIT(5)
124#define IMX8MM_OTG2_SW_Pxx_REQ BIT(3)
125#define IMX8MM_OTG1_SW_Pxx_REQ BIT(2)
126#define IMX8MM_PCIE_SW_Pxx_REQ BIT(1)
127#define IMX8MM_MIPI_SW_Pxx_REQ BIT(0)
128
129#define IMX8MN_DISPMIX_SW_Pxx_REQ BIT(10)
130#define IMX8MN_GPUMIX_SW_Pxx_REQ BIT(7)
131#define IMX8MN_DDR1_SW_Pxx_REQ BIT(5)
132#define IMX8MN_OTG1_SW_Pxx_REQ BIT(2)
133#define IMX8MN_MIPI_SW_Pxx_REQ BIT(0)
134
135#define IMX8MP_DDRMIX_Pxx_REQ BIT(19)
136#define IMX8MP_MEDIA_ISP_DWP_Pxx_REQ BIT(18)
137#define IMX8MP_HSIOMIX_Pxx_REQ BIT(17)
138#define IMX8MP_MIPI_PHY2_Pxx_REQ BIT(16)
139#define IMX8MP_HDMI_PHY_Pxx_REQ BIT(15)
140#define IMX8MP_HDMIMIX_Pxx_REQ BIT(14)
141#define IMX8MP_VPU_VC8K_Pxx_REQ BIT(13)
142#define IMX8MP_VPU_G2_Pxx_REQ BIT(12)
143#define IMX8MP_VPU_G1_Pxx_REQ BIT(11)
144#define IMX8MP_MEDIMIX_Pxx_REQ BIT(10)
145#define IMX8MP_GPU_3D_Pxx_REQ BIT(9)
146#define IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ BIT(8)
147#define IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ BIT(7)
148#define IMX8MP_GPU_2D_Pxx_REQ BIT(6)
149#define IMX8MP_AUDIOMIX_Pxx_REQ BIT(5)
150#define IMX8MP_MLMIX_Pxx_REQ BIT(4)
151#define IMX8MP_USB2_PHY_Pxx_REQ BIT(3)
152#define IMX8MP_USB1_PHY_Pxx_REQ BIT(2)
153#define IMX8MP_PCIE_PHY_SW_Pxx_REQ BIT(1)
154#define IMX8MP_MIPI_PHY1_SW_Pxx_REQ BIT(0)
155
156#define GPC_M4_PU_PDN_FLG 0x1bc
157
158#define IMX8MP_GPC_PU_PWRHSK 0x190
159#define GPC_PU_PWRHSK 0x1fc
160
161#define IMX8M_GPU_HSK_PWRDNACKN BIT(26)
162#define IMX8M_VPU_HSK_PWRDNACKN BIT(25)
163#define IMX8M_DISP_HSK_PWRDNACKN BIT(24)
164#define IMX8M_GPU_HSK_PWRDNREQN BIT(6)
165#define IMX8M_VPU_HSK_PWRDNREQN BIT(5)
166#define IMX8M_DISP_HSK_PWRDNREQN BIT(4)
167
168#define IMX8MM_GPUMIX_HSK_PWRDNACKN BIT(29)
169#define IMX8MM_GPU_HSK_PWRDNACKN (BIT(27) | BIT(28))
170#define IMX8MM_VPUMIX_HSK_PWRDNACKN BIT(26)
171#define IMX8MM_DISPMIX_HSK_PWRDNACKN BIT(25)
172#define IMX8MM_HSIO_HSK_PWRDNACKN (BIT(23) | BIT(24))
173#define IMX8MM_GPUMIX_HSK_PWRDNREQN BIT(11)
174#define IMX8MM_GPU_HSK_PWRDNREQN (BIT(9) | BIT(10))
175#define IMX8MM_VPUMIX_HSK_PWRDNREQN BIT(8)
176#define IMX8MM_DISPMIX_HSK_PWRDNREQN BIT(7)
177#define IMX8MM_HSIO_HSK_PWRDNREQN (BIT(5) | BIT(6))
178
179#define IMX8MN_GPUMIX_HSK_PWRDNACKN (BIT(29) | BIT(27))
180#define IMX8MN_DISPMIX_HSK_PWRDNACKN BIT(25)
181#define IMX8MN_HSIO_HSK_PWRDNACKN BIT(23)
182#define IMX8MN_GPUMIX_HSK_PWRDNREQN (BIT(11) | BIT(9))
183#define IMX8MN_DISPMIX_HSK_PWRDNREQN BIT(7)
184#define IMX8MN_HSIO_HSK_PWRDNREQN BIT(5)
185
186#define IMX8MP_MEDIAMIX_PWRDNACKN BIT(30)
187#define IMX8MP_HDMIMIX_PWRDNACKN BIT(29)
188#define IMX8MP_HSIOMIX_PWRDNACKN BIT(28)
189#define IMX8MP_VPUMIX_PWRDNACKN BIT(26)
190#define IMX8MP_GPUMIX_PWRDNACKN BIT(25)
191#define IMX8MP_MLMIX_PWRDNACKN (BIT(23) | BIT(24))
192#define IMX8MP_AUDIOMIX_PWRDNACKN (BIT(20) | BIT(31))
193#define IMX8MP_MEDIAMIX_PWRDNREQN BIT(14)
194#define IMX8MP_HDMIMIX_PWRDNREQN BIT(13)
195#define IMX8MP_HSIOMIX_PWRDNREQN BIT(12)
196#define IMX8MP_VPUMIX_PWRDNREQN BIT(10)
197#define IMX8MP_GPUMIX_PWRDNREQN BIT(9)
198#define IMX8MP_MLMIX_PWRDNREQN (BIT(7) | BIT(8))
199#define IMX8MP_AUDIOMIX_PWRDNREQN (BIT(4) | BIT(15))
200
201/*
202 * The PGC offset values in Reference Manual
203 * (Rev. 1, 01/2018 and the older ones) GPC chapter's
204 * GPC_PGC memory map are incorrect, below offset
205 * values are from design RTL.
206 */
207#define IMX7_PGC_MIPI 16
208#define IMX7_PGC_PCIE 17
209#define IMX7_PGC_USB_HSIC 20
210
211#define IMX8M_PGC_MIPI 16
212#define IMX8M_PGC_PCIE1 17
213#define IMX8M_PGC_OTG1 18
214#define IMX8M_PGC_OTG2 19
215#define IMX8M_PGC_DDR1 21
216#define IMX8M_PGC_GPU 23
217#define IMX8M_PGC_VPU 24
218#define IMX8M_PGC_DISP 26
219#define IMX8M_PGC_MIPI_CSI1 27
220#define IMX8M_PGC_MIPI_CSI2 28
221#define IMX8M_PGC_PCIE2 29
222
223#define IMX8MM_PGC_MIPI 16
224#define IMX8MM_PGC_PCIE 17
225#define IMX8MM_PGC_OTG1 18
226#define IMX8MM_PGC_OTG2 19
227#define IMX8MM_PGC_DDR1 21
228#define IMX8MM_PGC_GPU2D 22
229#define IMX8MM_PGC_GPUMIX 23
230#define IMX8MM_PGC_VPUMIX 24
231#define IMX8MM_PGC_GPU3D 25
232#define IMX8MM_PGC_DISPMIX 26
233#define IMX8MM_PGC_VPUG1 27
234#define IMX8MM_PGC_VPUG2 28
235#define IMX8MM_PGC_VPUH1 29
236
237#define IMX8MN_PGC_MIPI 16
238#define IMX8MN_PGC_OTG1 18
239#define IMX8MN_PGC_DDR1 21
240#define IMX8MN_PGC_GPUMIX 23
241#define IMX8MN_PGC_DISPMIX 26
242
243#define IMX8MP_PGC_NOC 9
244#define IMX8MP_PGC_MIPI1 12
245#define IMX8MP_PGC_PCIE 13
246#define IMX8MP_PGC_USB1 14
247#define IMX8MP_PGC_USB2 15
248#define IMX8MP_PGC_MLMIX 16
249#define IMX8MP_PGC_AUDIOMIX 17
250#define IMX8MP_PGC_GPU2D 18
251#define IMX8MP_PGC_GPUMIX 19
252#define IMX8MP_PGC_VPUMIX 20
253#define IMX8MP_PGC_GPU3D 21
254#define IMX8MP_PGC_MEDIAMIX 22
255#define IMX8MP_PGC_VPU_G1 23
256#define IMX8MP_PGC_VPU_G2 24
257#define IMX8MP_PGC_VPU_VC8000E 25
258#define IMX8MP_PGC_HDMIMIX 26
259#define IMX8MP_PGC_HDMI 27
260#define IMX8MP_PGC_MIPI2 28
261#define IMX8MP_PGC_HSIOMIX 29
262#define IMX8MP_PGC_MEDIA_ISP_DWP 30
263#define IMX8MP_PGC_DDRMIX 31
264
265#define GPC_PGC_CTRL(n) (0x800 + (n) * 0x40)
266#define GPC_PGC_SR(n) (GPC_PGC_CTRL(n) + 0xc)
267
268#define GPC_PGC_CTRL_PCR BIT(0)
269
270struct imx_pgc_regs {
271 u16 map;
272 u16 pup;
273 u16 pdn;
274 u16 hsk;
275};
276
277struct imx_pgc_domain {
278 struct generic_pm_domain genpd;
279 struct regmap *regmap;
280 const struct imx_pgc_regs *regs;
281 struct regulator *regulator;
282 struct reset_control *reset;
283 struct clk_bulk_data *clks;
284 int num_clks;
285
286 unsigned long pgc;
287
288 const struct {
289 u32 pxx;
290 u32 map;
291 u32 hskreq;
292 u32 hskack;
293 } bits;
294
295 const int voltage;
296 const bool keep_clocks;
297 struct device *dev;
298
299 unsigned int pgc_sw_pup_reg;
300 unsigned int pgc_sw_pdn_reg;
301};
302
303struct imx_pgc_domain_data {
304 const struct imx_pgc_domain *domains;
305 size_t domains_num;
306 const struct regmap_access_table *reg_access_table;
307 const struct imx_pgc_regs *pgc_regs;
308};
309
310static inline struct imx_pgc_domain *
311to_imx_pgc_domain(struct generic_pm_domain *genpd)
312{
313 return container_of(genpd, struct imx_pgc_domain, genpd);
314}
315
316static int imx_pgc_power_up(struct generic_pm_domain *genpd)
317{
318 struct imx_pgc_domain *domain = to_imx_pgc_domain(genpd);
319 u32 reg_val, pgc;
320 int ret;
321
322 ret = pm_runtime_get_sync(domain->dev);
323 if (ret < 0) {
324 pm_runtime_put_noidle(domain->dev);
325 return ret;
326 }
327
328 if (!IS_ERR(domain->regulator)) {
329 ret = regulator_enable(domain->regulator);
330 if (ret) {
331 dev_err(domain->dev,
332 "failed to enable regulator: %pe\n",
333 ERR_PTR(ret));
334 goto out_put_pm;
335 }
336 }
337
338 reset_control_assert(domain->reset);
339
340 /* Enable reset clocks for all devices in the domain */
341 ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
342 if (ret) {
343 dev_err(domain->dev, "failed to enable reset clocks\n");
344 goto out_regulator_disable;
345 }
346
347 /* delays for reset to propagate */
348 udelay(5);
349
350 if (domain->bits.pxx) {
351 /* request the domain to power up */
352 regmap_update_bits(domain->regmap, domain->regs->pup,
353 domain->bits.pxx, domain->bits.pxx);
354 /*
355 * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait
356 * for PUP_REQ/PDN_REQ bit to be cleared
357 */
358 ret = regmap_read_poll_timeout(domain->regmap,
359 domain->regs->pup, reg_val,
360 !(reg_val & domain->bits.pxx),
361 0, USEC_PER_MSEC);
362 if (ret) {
363 dev_err(domain->dev, "failed to command PGC\n");
364 goto out_clk_disable;
365 }
366
367 /* disable power control */
368 for_each_set_bit(pgc, &domain->pgc, 32) {
369 regmap_clear_bits(domain->regmap, GPC_PGC_CTRL(pgc),
370 GPC_PGC_CTRL_PCR);
371 }
372 }
373
374 /* delay for reset to propagate */
375 udelay(5);
376
377 reset_control_deassert(domain->reset);
378
379 /* request the ADB400 to power up */
380 if (domain->bits.hskreq) {
381 regmap_update_bits(domain->regmap, domain->regs->hsk,
382 domain->bits.hskreq, domain->bits.hskreq);
383
384 /*
385 * ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk, reg_val,
386 * (reg_val & domain->bits.hskack), 0,
387 * USEC_PER_MSEC);
388 * Technically we need the commented code to wait handshake. But that needs
389 * the BLK-CTL module BUS clk-en bit being set.
390 *
391 * There is a separate BLK-CTL module and we will have such a driver for it,
392 * that driver will set the BUS clk-en bit and handshake will be triggered
393 * automatically there. Just add a delay and suppose the handshake finish
394 * after that.
395 */
396 }
397
398 /* Disable reset clocks for all devices in the domain */
399 if (!domain->keep_clocks)
400 clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
401
402 return 0;
403
404out_clk_disable:
405 clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
406out_regulator_disable:
407 if (!IS_ERR(domain->regulator))
408 regulator_disable(domain->regulator);
409out_put_pm:
410 pm_runtime_put(domain->dev);
411
412 return ret;
413}
414
415static int imx_pgc_power_down(struct generic_pm_domain *genpd)
416{
417 struct imx_pgc_domain *domain = to_imx_pgc_domain(genpd);
418 u32 reg_val, pgc;
419 int ret;
420
421 /* Enable reset clocks for all devices in the domain */
422 if (!domain->keep_clocks) {
423 ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
424 if (ret) {
425 dev_err(domain->dev, "failed to enable reset clocks\n");
426 return ret;
427 }
428 }
429
430 /* request the ADB400 to power down */
431 if (domain->bits.hskreq) {
432 regmap_clear_bits(domain->regmap, domain->regs->hsk,
433 domain->bits.hskreq);
434
435 ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk,
436 reg_val,
437 !(reg_val & domain->bits.hskack),
438 0, USEC_PER_MSEC);
439 if (ret) {
440 dev_err(domain->dev, "failed to power down ADB400\n");
441 goto out_clk_disable;
442 }
443 }
444
445 if (domain->bits.pxx) {
446 /* enable power control */
447 for_each_set_bit(pgc, &domain->pgc, 32) {
448 regmap_update_bits(domain->regmap, GPC_PGC_CTRL(pgc),
449 GPC_PGC_CTRL_PCR, GPC_PGC_CTRL_PCR);
450 }
451
452 /* request the domain to power down */
453 regmap_update_bits(domain->regmap, domain->regs->pdn,
454 domain->bits.pxx, domain->bits.pxx);
455 /*
456 * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait
457 * for PUP_REQ/PDN_REQ bit to be cleared
458 */
459 ret = regmap_read_poll_timeout(domain->regmap,
460 domain->regs->pdn, reg_val,
461 !(reg_val & domain->bits.pxx),
462 0, USEC_PER_MSEC);
463 if (ret) {
464 dev_err(domain->dev, "failed to command PGC\n");
465 goto out_clk_disable;
466 }
467 }
468
469 /* Disable reset clocks for all devices in the domain */
470 clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
471
472 if (!IS_ERR(domain->regulator)) {
473 ret = regulator_disable(domain->regulator);
474 if (ret) {
475 dev_err(domain->dev,
476 "failed to disable regulator: %pe\n",
477 ERR_PTR(ret));
478 return ret;
479 }
480 }
481
482 pm_runtime_put_sync_suspend(domain->dev);
483
484 return 0;
485
486out_clk_disable:
487 if (!domain->keep_clocks)
488 clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
489
490 return ret;
491}
492
493static const struct imx_pgc_domain imx7_pgc_domains[] = {
494 [IMX7_POWER_DOMAIN_MIPI_PHY] = {
495 .genpd = {
496 .name = "mipi-phy",
497 },
498 .bits = {
499 .pxx = IMX7_MIPI_PHY_SW_Pxx_REQ,
500 .map = IMX7_MIPI_PHY_A_CORE_DOMAIN,
501 },
502 .voltage = 1000000,
503 .pgc = BIT(IMX7_PGC_MIPI),
504 },
505
506 [IMX7_POWER_DOMAIN_PCIE_PHY] = {
507 .genpd = {
508 .name = "pcie-phy",
509 },
510 .bits = {
511 .pxx = IMX7_PCIE_PHY_SW_Pxx_REQ,
512 .map = IMX7_PCIE_PHY_A_CORE_DOMAIN,
513 },
514 .voltage = 1000000,
515 .pgc = BIT(IMX7_PGC_PCIE),
516 },
517
518 [IMX7_POWER_DOMAIN_USB_HSIC_PHY] = {
519 .genpd = {
520 .name = "usb-hsic-phy",
521 },
522 .bits = {
523 .pxx = IMX7_USB_HSIC_PHY_SW_Pxx_REQ,
524 .map = IMX7_USB_HSIC_PHY_A_CORE_DOMAIN,
525 },
526 .voltage = 1200000,
527 .pgc = BIT(IMX7_PGC_USB_HSIC),
528 },
529};
530
531static const struct regmap_range imx7_yes_ranges[] = {
532 regmap_reg_range(GPC_LPCR_A_CORE_BSC,
533 GPC_M4_PU_PDN_FLG),
534 regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_MIPI),
535 GPC_PGC_SR(IMX7_PGC_MIPI)),
536 regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_PCIE),
537 GPC_PGC_SR(IMX7_PGC_PCIE)),
538 regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_USB_HSIC),
539 GPC_PGC_SR(IMX7_PGC_USB_HSIC)),
540};
541
542static const struct regmap_access_table imx7_access_table = {
543 .yes_ranges = imx7_yes_ranges,
544 .n_yes_ranges = ARRAY_SIZE(imx7_yes_ranges),
545};
546
547static const struct imx_pgc_regs imx7_pgc_regs = {
548 .map = GPC_PGC_CPU_MAPPING,
549 .pup = GPC_PU_PGC_SW_PUP_REQ,
550 .pdn = GPC_PU_PGC_SW_PDN_REQ,
551 .hsk = GPC_PU_PWRHSK,
552};
553
554static const struct imx_pgc_domain_data imx7_pgc_domain_data = {
555 .domains = imx7_pgc_domains,
556 .domains_num = ARRAY_SIZE(imx7_pgc_domains),
557 .reg_access_table = &imx7_access_table,
558 .pgc_regs = &imx7_pgc_regs,
559};
560
561static const struct imx_pgc_domain imx8m_pgc_domains[] = {
562 [IMX8M_POWER_DOMAIN_MIPI] = {
563 .genpd = {
564 .name = "mipi",
565 },
566 .bits = {
567 .pxx = IMX8M_MIPI_SW_Pxx_REQ,
568 .map = IMX8M_MIPI_A53_DOMAIN,
569 },
570 .pgc = BIT(IMX8M_PGC_MIPI),
571 },
572
573 [IMX8M_POWER_DOMAIN_PCIE1] = {
574 .genpd = {
575 .name = "pcie1",
576 },
577 .bits = {
578 .pxx = IMX8M_PCIE1_SW_Pxx_REQ,
579 .map = IMX8M_PCIE1_A53_DOMAIN,
580 },
581 .pgc = BIT(IMX8M_PGC_PCIE1),
582 },
583
584 [IMX8M_POWER_DOMAIN_USB_OTG1] = {
585 .genpd = {
586 .name = "usb-otg1",
587 },
588 .bits = {
589 .pxx = IMX8M_OTG1_SW_Pxx_REQ,
590 .map = IMX8M_OTG1_A53_DOMAIN,
591 },
592 .pgc = BIT(IMX8M_PGC_OTG1),
593 },
594
595 [IMX8M_POWER_DOMAIN_USB_OTG2] = {
596 .genpd = {
597 .name = "usb-otg2",
598 },
599 .bits = {
600 .pxx = IMX8M_OTG2_SW_Pxx_REQ,
601 .map = IMX8M_OTG2_A53_DOMAIN,
602 },
603 .pgc = BIT(IMX8M_PGC_OTG2),
604 },
605
606 [IMX8M_POWER_DOMAIN_DDR1] = {
607 .genpd = {
608 .name = "ddr1",
609 },
610 .bits = {
611 .pxx = IMX8M_DDR1_SW_Pxx_REQ,
612 .map = IMX8M_DDR2_A53_DOMAIN,
613 },
614 .pgc = BIT(IMX8M_PGC_DDR1),
615 },
616
617 [IMX8M_POWER_DOMAIN_GPU] = {
618 .genpd = {
619 .name = "gpu",
620 },
621 .bits = {
622 .pxx = IMX8M_GPU_SW_Pxx_REQ,
623 .map = IMX8M_GPU_A53_DOMAIN,
624 .hskreq = IMX8M_GPU_HSK_PWRDNREQN,
625 .hskack = IMX8M_GPU_HSK_PWRDNACKN,
626 },
627 .pgc = BIT(IMX8M_PGC_GPU),
628 },
629
630 [IMX8M_POWER_DOMAIN_VPU] = {
631 .genpd = {
632 .name = "vpu",
633 },
634 .bits = {
635 .pxx = IMX8M_VPU_SW_Pxx_REQ,
636 .map = IMX8M_VPU_A53_DOMAIN,
637 .hskreq = IMX8M_VPU_HSK_PWRDNREQN,
638 .hskack = IMX8M_VPU_HSK_PWRDNACKN,
639 },
640 .pgc = BIT(IMX8M_PGC_VPU),
641 .keep_clocks = true,
642 },
643
644 [IMX8M_POWER_DOMAIN_DISP] = {
645 .genpd = {
646 .name = "disp",
647 },
648 .bits = {
649 .pxx = IMX8M_DISP_SW_Pxx_REQ,
650 .map = IMX8M_DISP_A53_DOMAIN,
651 .hskreq = IMX8M_DISP_HSK_PWRDNREQN,
652 .hskack = IMX8M_DISP_HSK_PWRDNACKN,
653 },
654 .pgc = BIT(IMX8M_PGC_DISP),
655 },
656
657 [IMX8M_POWER_DOMAIN_MIPI_CSI1] = {
658 .genpd = {
659 .name = "mipi-csi1",
660 },
661 .bits = {
662 .pxx = IMX8M_MIPI_CSI1_SW_Pxx_REQ,
663 .map = IMX8M_MIPI_CSI1_A53_DOMAIN,
664 },
665 .pgc = BIT(IMX8M_PGC_MIPI_CSI1),
666 },
667
668 [IMX8M_POWER_DOMAIN_MIPI_CSI2] = {
669 .genpd = {
670 .name = "mipi-csi2",
671 },
672 .bits = {
673 .pxx = IMX8M_MIPI_CSI2_SW_Pxx_REQ,
674 .map = IMX8M_MIPI_CSI2_A53_DOMAIN,
675 },
676 .pgc = BIT(IMX8M_PGC_MIPI_CSI2),
677 },
678
679 [IMX8M_POWER_DOMAIN_PCIE2] = {
680 .genpd = {
681 .name = "pcie2",
682 },
683 .bits = {
684 .pxx = IMX8M_PCIE2_SW_Pxx_REQ,
685 .map = IMX8M_PCIE2_A53_DOMAIN,
686 },
687 .pgc = BIT(IMX8M_PGC_PCIE2),
688 },
689};
690
691static const struct regmap_range imx8m_yes_ranges[] = {
692 regmap_reg_range(GPC_LPCR_A_CORE_BSC,
693 GPC_PU_PWRHSK),
694 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI),
695 GPC_PGC_SR(IMX8M_PGC_MIPI)),
696 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE1),
697 GPC_PGC_SR(IMX8M_PGC_PCIE1)),
698 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG1),
699 GPC_PGC_SR(IMX8M_PGC_OTG1)),
700 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG2),
701 GPC_PGC_SR(IMX8M_PGC_OTG2)),
702 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DDR1),
703 GPC_PGC_SR(IMX8M_PGC_DDR1)),
704 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_GPU),
705 GPC_PGC_SR(IMX8M_PGC_GPU)),
706 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_VPU),
707 GPC_PGC_SR(IMX8M_PGC_VPU)),
708 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DISP),
709 GPC_PGC_SR(IMX8M_PGC_DISP)),
710 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI1),
711 GPC_PGC_SR(IMX8M_PGC_MIPI_CSI1)),
712 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI2),
713 GPC_PGC_SR(IMX8M_PGC_MIPI_CSI2)),
714 regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE2),
715 GPC_PGC_SR(IMX8M_PGC_PCIE2)),
716};
717
718static const struct regmap_access_table imx8m_access_table = {
719 .yes_ranges = imx8m_yes_ranges,
720 .n_yes_ranges = ARRAY_SIZE(imx8m_yes_ranges),
721};
722
723static const struct imx_pgc_domain_data imx8m_pgc_domain_data = {
724 .domains = imx8m_pgc_domains,
725 .domains_num = ARRAY_SIZE(imx8m_pgc_domains),
726 .reg_access_table = &imx8m_access_table,
727 .pgc_regs = &imx7_pgc_regs,
728};
729
730static const struct imx_pgc_domain imx8mm_pgc_domains[] = {
731 [IMX8MM_POWER_DOMAIN_HSIOMIX] = {
732 .genpd = {
733 .name = "hsiomix",
734 },
735 .bits = {
736 .pxx = 0, /* no power sequence control */
737 .map = 0, /* no power sequence control */
738 .hskreq = IMX8MM_HSIO_HSK_PWRDNREQN,
739 .hskack = IMX8MM_HSIO_HSK_PWRDNACKN,
740 },
741 .keep_clocks = true,
742 },
743
744 [IMX8MM_POWER_DOMAIN_PCIE] = {
745 .genpd = {
746 .name = "pcie",
747 },
748 .bits = {
749 .pxx = IMX8MM_PCIE_SW_Pxx_REQ,
750 .map = IMX8MM_PCIE_A53_DOMAIN,
751 },
752 .pgc = BIT(IMX8MM_PGC_PCIE),
753 },
754
755 [IMX8MM_POWER_DOMAIN_OTG1] = {
756 .genpd = {
757 .name = "usb-otg1",
758 .flags = GENPD_FLAG_ACTIVE_WAKEUP,
759 },
760 .bits = {
761 .pxx = IMX8MM_OTG1_SW_Pxx_REQ,
762 .map = IMX8MM_OTG1_A53_DOMAIN,
763 },
764 .pgc = BIT(IMX8MM_PGC_OTG1),
765 },
766
767 [IMX8MM_POWER_DOMAIN_OTG2] = {
768 .genpd = {
769 .name = "usb-otg2",
770 .flags = GENPD_FLAG_ACTIVE_WAKEUP,
771 },
772 .bits = {
773 .pxx = IMX8MM_OTG2_SW_Pxx_REQ,
774 .map = IMX8MM_OTG2_A53_DOMAIN,
775 },
776 .pgc = BIT(IMX8MM_PGC_OTG2),
777 },
778
779 [IMX8MM_POWER_DOMAIN_GPUMIX] = {
780 .genpd = {
781 .name = "gpumix",
782 },
783 .bits = {
784 .pxx = IMX8MM_GPUMIX_SW_Pxx_REQ,
785 .map = IMX8MM_GPUMIX_A53_DOMAIN,
786 .hskreq = IMX8MM_GPUMIX_HSK_PWRDNREQN,
787 .hskack = IMX8MM_GPUMIX_HSK_PWRDNACKN,
788 },
789 .pgc = BIT(IMX8MM_PGC_GPUMIX),
790 .keep_clocks = true,
791 },
792
793 [IMX8MM_POWER_DOMAIN_GPU] = {
794 .genpd = {
795 .name = "gpu",
796 },
797 .bits = {
798 .pxx = IMX8MM_GPU_SW_Pxx_REQ,
799 .map = IMX8MM_GPU_A53_DOMAIN,
800 .hskreq = IMX8MM_GPU_HSK_PWRDNREQN,
801 .hskack = IMX8MM_GPU_HSK_PWRDNACKN,
802 },
803 .pgc = BIT(IMX8MM_PGC_GPU2D) | BIT(IMX8MM_PGC_GPU3D),
804 },
805
806 [IMX8MM_POWER_DOMAIN_VPUMIX] = {
807 .genpd = {
808 .name = "vpumix",
809 },
810 .bits = {
811 .pxx = IMX8MM_VPUMIX_SW_Pxx_REQ,
812 .map = IMX8MM_VPUMIX_A53_DOMAIN,
813 .hskreq = IMX8MM_VPUMIX_HSK_PWRDNREQN,
814 .hskack = IMX8MM_VPUMIX_HSK_PWRDNACKN,
815 },
816 .pgc = BIT(IMX8MM_PGC_VPUMIX),
817 .keep_clocks = true,
818 },
819
820 [IMX8MM_POWER_DOMAIN_VPUG1] = {
821 .genpd = {
822 .name = "vpu-g1",
823 },
824 .bits = {
825 .pxx = IMX8MM_VPUG1_SW_Pxx_REQ,
826 .map = IMX8MM_VPUG1_A53_DOMAIN,
827 },
828 .pgc = BIT(IMX8MM_PGC_VPUG1),
829 },
830
831 [IMX8MM_POWER_DOMAIN_VPUG2] = {
832 .genpd = {
833 .name = "vpu-g2",
834 },
835 .bits = {
836 .pxx = IMX8MM_VPUG2_SW_Pxx_REQ,
837 .map = IMX8MM_VPUG2_A53_DOMAIN,
838 },
839 .pgc = BIT(IMX8MM_PGC_VPUG2),
840 },
841
842 [IMX8MM_POWER_DOMAIN_VPUH1] = {
843 .genpd = {
844 .name = "vpu-h1",
845 },
846 .bits = {
847 .pxx = IMX8MM_VPUH1_SW_Pxx_REQ,
848 .map = IMX8MM_VPUH1_A53_DOMAIN,
849 },
850 .pgc = BIT(IMX8MM_PGC_VPUH1),
851 .keep_clocks = true,
852 },
853
854 [IMX8MM_POWER_DOMAIN_DISPMIX] = {
855 .genpd = {
856 .name = "dispmix",
857 },
858 .bits = {
859 .pxx = IMX8MM_DISPMIX_SW_Pxx_REQ,
860 .map = IMX8MM_DISPMIX_A53_DOMAIN,
861 .hskreq = IMX8MM_DISPMIX_HSK_PWRDNREQN,
862 .hskack = IMX8MM_DISPMIX_HSK_PWRDNACKN,
863 },
864 .pgc = BIT(IMX8MM_PGC_DISPMIX),
865 .keep_clocks = true,
866 },
867
868 [IMX8MM_POWER_DOMAIN_MIPI] = {
869 .genpd = {
870 .name = "mipi",
871 },
872 .bits = {
873 .pxx = IMX8MM_MIPI_SW_Pxx_REQ,
874 .map = IMX8MM_MIPI_A53_DOMAIN,
875 },
876 .pgc = BIT(IMX8MM_PGC_MIPI),
877 },
878};
879
880static const struct regmap_range imx8mm_yes_ranges[] = {
881 regmap_reg_range(GPC_LPCR_A_CORE_BSC,
882 GPC_PU_PWRHSK),
883 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_MIPI),
884 GPC_PGC_SR(IMX8MM_PGC_MIPI)),
885 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_PCIE),
886 GPC_PGC_SR(IMX8MM_PGC_PCIE)),
887 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG1),
888 GPC_PGC_SR(IMX8MM_PGC_OTG1)),
889 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG2),
890 GPC_PGC_SR(IMX8MM_PGC_OTG2)),
891 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_DDR1),
892 GPC_PGC_SR(IMX8MM_PGC_DDR1)),
893 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPU2D),
894 GPC_PGC_SR(IMX8MM_PGC_GPU2D)),
895 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPUMIX),
896 GPC_PGC_SR(IMX8MM_PGC_GPUMIX)),
897 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUMIX),
898 GPC_PGC_SR(IMX8MM_PGC_VPUMIX)),
899 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPU3D),
900 GPC_PGC_SR(IMX8MM_PGC_GPU3D)),
901 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_DISPMIX),
902 GPC_PGC_SR(IMX8MM_PGC_DISPMIX)),
903 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUG1),
904 GPC_PGC_SR(IMX8MM_PGC_VPUG1)),
905 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUG2),
906 GPC_PGC_SR(IMX8MM_PGC_VPUG2)),
907 regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUH1),
908 GPC_PGC_SR(IMX8MM_PGC_VPUH1)),
909};
910
911static const struct regmap_access_table imx8mm_access_table = {
912 .yes_ranges = imx8mm_yes_ranges,
913 .n_yes_ranges = ARRAY_SIZE(imx8mm_yes_ranges),
914};
915
916static const struct imx_pgc_domain_data imx8mm_pgc_domain_data = {
917 .domains = imx8mm_pgc_domains,
918 .domains_num = ARRAY_SIZE(imx8mm_pgc_domains),
919 .reg_access_table = &imx8mm_access_table,
920 .pgc_regs = &imx7_pgc_regs,
921};
922
923static const struct imx_pgc_domain imx8mp_pgc_domains[] = {
924 [IMX8MP_POWER_DOMAIN_MIPI_PHY1] = {
925 .genpd = {
926 .name = "mipi-phy1",
927 },
928 .bits = {
929 .pxx = IMX8MP_MIPI_PHY1_SW_Pxx_REQ,
930 .map = IMX8MP_MIPI_PHY1_A53_DOMAIN,
931 },
932 .pgc = BIT(IMX8MP_PGC_MIPI1),
933 },
934
935 [IMX8MP_POWER_DOMAIN_PCIE_PHY] = {
936 .genpd = {
937 .name = "pcie-phy1",
938 },
939 .bits = {
940 .pxx = IMX8MP_PCIE_PHY_SW_Pxx_REQ,
941 .map = IMX8MP_PCIE_PHY_A53_DOMAIN,
942 },
943 .pgc = BIT(IMX8MP_PGC_PCIE),
944 },
945
946 [IMX8MP_POWER_DOMAIN_USB1_PHY] = {
947 .genpd = {
948 .name = "usb-otg1",
949 },
950 .bits = {
951 .pxx = IMX8MP_USB1_PHY_Pxx_REQ,
952 .map = IMX8MP_USB1_PHY_A53_DOMAIN,
953 },
954 .pgc = BIT(IMX8MP_PGC_USB1),
955 },
956
957 [IMX8MP_POWER_DOMAIN_USB2_PHY] = {
958 .genpd = {
959 .name = "usb-otg2",
960 },
961 .bits = {
962 .pxx = IMX8MP_USB2_PHY_Pxx_REQ,
963 .map = IMX8MP_USB2_PHY_A53_DOMAIN,
964 },
965 .pgc = BIT(IMX8MP_PGC_USB2),
966 },
967
968 [IMX8MP_POWER_DOMAIN_MLMIX] = {
969 .genpd = {
970 .name = "mlmix",
971 },
972 .bits = {
973 .pxx = IMX8MP_MLMIX_Pxx_REQ,
974 .map = IMX8MP_MLMIX_A53_DOMAIN,
975 .hskreq = IMX8MP_MLMIX_PWRDNREQN,
976 .hskack = IMX8MP_MLMIX_PWRDNACKN,
977 },
978 .pgc = BIT(IMX8MP_PGC_MLMIX),
979 .keep_clocks = true,
980 },
981
982 [IMX8MP_POWER_DOMAIN_AUDIOMIX] = {
983 .genpd = {
984 .name = "audiomix",
985 },
986 .bits = {
987 .pxx = IMX8MP_AUDIOMIX_Pxx_REQ,
988 .map = IMX8MP_AUDIOMIX_A53_DOMAIN,
989 .hskreq = IMX8MP_AUDIOMIX_PWRDNREQN,
990 .hskack = IMX8MP_AUDIOMIX_PWRDNACKN,
991 },
992 .pgc = BIT(IMX8MP_PGC_AUDIOMIX),
993 .keep_clocks = true,
994 },
995
996 [IMX8MP_POWER_DOMAIN_GPU2D] = {
997 .genpd = {
998 .name = "gpu2d",
999 },
1000 .bits = {
1001 .pxx = IMX8MP_GPU_2D_Pxx_REQ,
1002 .map = IMX8MP_GPU2D_A53_DOMAIN,
1003 },
1004 .pgc = BIT(IMX8MP_PGC_GPU2D),
1005 },
1006
1007 [IMX8MP_POWER_DOMAIN_GPUMIX] = {
1008 .genpd = {
1009 .name = "gpumix",
1010 },
1011 .bits = {
1012 .pxx = IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ,
1013 .map = IMX8MP_GPUMIX_A53_DOMAIN,
1014 .hskreq = IMX8MP_GPUMIX_PWRDNREQN,
1015 .hskack = IMX8MP_GPUMIX_PWRDNACKN,
1016 },
1017 .pgc = BIT(IMX8MP_PGC_GPUMIX),
1018 .keep_clocks = true,
1019 },
1020
1021 [IMX8MP_POWER_DOMAIN_VPUMIX] = {
1022 .genpd = {
1023 .name = "vpumix",
1024 },
1025 .bits = {
1026 .pxx = IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ,
1027 .map = IMX8MP_VPUMIX_A53_DOMAIN,
1028 .hskreq = IMX8MP_VPUMIX_PWRDNREQN,
1029 .hskack = IMX8MP_VPUMIX_PWRDNACKN,
1030 },
1031 .pgc = BIT(IMX8MP_PGC_VPUMIX),
1032 .keep_clocks = true,
1033 },
1034
1035 [IMX8MP_POWER_DOMAIN_GPU3D] = {
1036 .genpd = {
1037 .name = "gpu3d",
1038 },
1039 .bits = {
1040 .pxx = IMX8MP_GPU_3D_Pxx_REQ,
1041 .map = IMX8MP_GPU3D_A53_DOMAIN,
1042 },
1043 .pgc = BIT(IMX8MP_PGC_GPU3D),
1044 },
1045
1046 [IMX8MP_POWER_DOMAIN_MEDIAMIX] = {
1047 .genpd = {
1048 .name = "mediamix",
1049 },
1050 .bits = {
1051 .pxx = IMX8MP_MEDIMIX_Pxx_REQ,
1052 .map = IMX8MP_MEDIAMIX_A53_DOMAIN,
1053 .hskreq = IMX8MP_MEDIAMIX_PWRDNREQN,
1054 .hskack = IMX8MP_MEDIAMIX_PWRDNACKN,
1055 },
1056 .pgc = BIT(IMX8MP_PGC_MEDIAMIX),
1057 .keep_clocks = true,
1058 },
1059
1060 [IMX8MP_POWER_DOMAIN_VPU_G1] = {
1061 .genpd = {
1062 .name = "vpu-g1",
1063 },
1064 .bits = {
1065 .pxx = IMX8MP_VPU_G1_Pxx_REQ,
1066 .map = IMX8MP_VPU_G1_A53_DOMAIN,
1067 },
1068 .pgc = BIT(IMX8MP_PGC_VPU_G1),
1069 },
1070
1071 [IMX8MP_POWER_DOMAIN_VPU_G2] = {
1072 .genpd = {
1073 .name = "vpu-g2",
1074 },
1075 .bits = {
1076 .pxx = IMX8MP_VPU_G2_Pxx_REQ,
1077 .map = IMX8MP_VPU_G2_A53_DOMAIN
1078 },
1079 .pgc = BIT(IMX8MP_PGC_VPU_G2),
1080 },
1081
1082 [IMX8MP_POWER_DOMAIN_VPU_VC8000E] = {
1083 .genpd = {
1084 .name = "vpu-h1",
1085 },
1086 .bits = {
1087 .pxx = IMX8MP_VPU_VC8K_Pxx_REQ,
1088 .map = IMX8MP_VPU_VC8000E_A53_DOMAIN,
1089 },
1090 .pgc = BIT(IMX8MP_PGC_VPU_VC8000E),
1091 },
1092
1093 [IMX8MP_POWER_DOMAIN_HDMIMIX] = {
1094 .genpd = {
1095 .name = "hdmimix",
1096 },
1097 .bits = {
1098 .pxx = IMX8MP_HDMIMIX_Pxx_REQ,
1099 .map = IMX8MP_HDMIMIX_A53_DOMAIN,
1100 .hskreq = IMX8MP_HDMIMIX_PWRDNREQN,
1101 .hskack = IMX8MP_HDMIMIX_PWRDNACKN,
1102 },
1103 .pgc = BIT(IMX8MP_PGC_HDMIMIX),
1104 .keep_clocks = true,
1105 },
1106
1107 [IMX8MP_POWER_DOMAIN_HDMI_PHY] = {
1108 .genpd = {
1109 .name = "hdmi-phy",
1110 },
1111 .bits = {
1112 .pxx = IMX8MP_HDMI_PHY_Pxx_REQ,
1113 .map = IMX8MP_HDMI_PHY_A53_DOMAIN,
1114 },
1115 .pgc = BIT(IMX8MP_PGC_HDMI),
1116 },
1117
1118 [IMX8MP_POWER_DOMAIN_MIPI_PHY2] = {
1119 .genpd = {
1120 .name = "mipi-phy2",
1121 },
1122 .bits = {
1123 .pxx = IMX8MP_MIPI_PHY2_Pxx_REQ,
1124 .map = IMX8MP_MIPI_PHY2_A53_DOMAIN,
1125 },
1126 .pgc = BIT(IMX8MP_PGC_MIPI2),
1127 },
1128
1129 [IMX8MP_POWER_DOMAIN_HSIOMIX] = {
1130 .genpd = {
1131 .name = "hsiomix",
1132 },
1133 .bits = {
1134 .pxx = IMX8MP_HSIOMIX_Pxx_REQ,
1135 .map = IMX8MP_HSIOMIX_A53_DOMAIN,
1136 .hskreq = IMX8MP_HSIOMIX_PWRDNREQN,
1137 .hskack = IMX8MP_HSIOMIX_PWRDNACKN,
1138 },
1139 .pgc = BIT(IMX8MP_PGC_HSIOMIX),
1140 .keep_clocks = true,
1141 },
1142
1143 [IMX8MP_POWER_DOMAIN_MEDIAMIX_ISPDWP] = {
1144 .genpd = {
1145 .name = "mediamix-isp-dwp",
1146 },
1147 .bits = {
1148 .pxx = IMX8MP_MEDIA_ISP_DWP_Pxx_REQ,
1149 .map = IMX8MP_MEDIA_ISPDWP_A53_DOMAIN,
1150 },
1151 .pgc = BIT(IMX8MP_PGC_MEDIA_ISP_DWP),
1152 },
1153};
1154
1155static const struct regmap_range imx8mp_yes_ranges[] = {
1156 regmap_reg_range(GPC_LPCR_A_CORE_BSC,
1157 IMX8MP_GPC_PGC_CPU_MAPPING),
1158 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_NOC),
1159 GPC_PGC_SR(IMX8MP_PGC_NOC)),
1160 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI1),
1161 GPC_PGC_SR(IMX8MP_PGC_MIPI1)),
1162 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_PCIE),
1163 GPC_PGC_SR(IMX8MP_PGC_PCIE)),
1164 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB1),
1165 GPC_PGC_SR(IMX8MP_PGC_USB1)),
1166 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB2),
1167 GPC_PGC_SR(IMX8MP_PGC_USB2)),
1168 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MLMIX),
1169 GPC_PGC_SR(IMX8MP_PGC_MLMIX)),
1170 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_AUDIOMIX),
1171 GPC_PGC_SR(IMX8MP_PGC_AUDIOMIX)),
1172 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU2D),
1173 GPC_PGC_SR(IMX8MP_PGC_GPU2D)),
1174 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPUMIX),
1175 GPC_PGC_SR(IMX8MP_PGC_GPUMIX)),
1176 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPUMIX),
1177 GPC_PGC_SR(IMX8MP_PGC_VPUMIX)),
1178 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU3D),
1179 GPC_PGC_SR(IMX8MP_PGC_GPU3D)),
1180 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIAMIX),
1181 GPC_PGC_SR(IMX8MP_PGC_MEDIAMIX)),
1182 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G1),
1183 GPC_PGC_SR(IMX8MP_PGC_VPU_G1)),
1184 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G2),
1185 GPC_PGC_SR(IMX8MP_PGC_VPU_G2)),
1186 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_VC8000E),
1187 GPC_PGC_SR(IMX8MP_PGC_VPU_VC8000E)),
1188 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMIMIX),
1189 GPC_PGC_SR(IMX8MP_PGC_HDMIMIX)),
1190 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMI),
1191 GPC_PGC_SR(IMX8MP_PGC_HDMI)),
1192 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI2),
1193 GPC_PGC_SR(IMX8MP_PGC_MIPI2)),
1194 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HSIOMIX),
1195 GPC_PGC_SR(IMX8MP_PGC_HSIOMIX)),
1196 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIA_ISP_DWP),
1197 GPC_PGC_SR(IMX8MP_PGC_MEDIA_ISP_DWP)),
1198 regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_DDRMIX),
1199 GPC_PGC_SR(IMX8MP_PGC_DDRMIX)),
1200};
1201
1202static const struct regmap_access_table imx8mp_access_table = {
1203 .yes_ranges = imx8mp_yes_ranges,
1204 .n_yes_ranges = ARRAY_SIZE(imx8mp_yes_ranges),
1205};
1206
1207static const struct imx_pgc_regs imx8mp_pgc_regs = {
1208 .map = IMX8MP_GPC_PGC_CPU_MAPPING,
1209 .pup = IMX8MP_GPC_PU_PGC_SW_PUP_REQ,
1210 .pdn = IMX8MP_GPC_PU_PGC_SW_PDN_REQ,
1211 .hsk = IMX8MP_GPC_PU_PWRHSK,
1212};
1213static const struct imx_pgc_domain_data imx8mp_pgc_domain_data = {
1214 .domains = imx8mp_pgc_domains,
1215 .domains_num = ARRAY_SIZE(imx8mp_pgc_domains),
1216 .reg_access_table = &imx8mp_access_table,
1217 .pgc_regs = &imx8mp_pgc_regs,
1218};
1219
1220static const struct imx_pgc_domain imx8mn_pgc_domains[] = {
1221 [IMX8MN_POWER_DOMAIN_HSIOMIX] = {
1222 .genpd = {
1223 .name = "hsiomix",
1224 },
1225 .bits = {
1226 .pxx = 0, /* no power sequence control */
1227 .map = 0, /* no power sequence control */
1228 .hskreq = IMX8MN_HSIO_HSK_PWRDNREQN,
1229 .hskack = IMX8MN_HSIO_HSK_PWRDNACKN,
1230 },
1231 .keep_clocks = true,
1232 },
1233
1234 [IMX8MN_POWER_DOMAIN_OTG1] = {
1235 .genpd = {
1236 .name = "usb-otg1",
1237 .flags = GENPD_FLAG_ACTIVE_WAKEUP,
1238 },
1239 .bits = {
1240 .pxx = IMX8MN_OTG1_SW_Pxx_REQ,
1241 .map = IMX8MN_OTG1_A53_DOMAIN,
1242 },
1243 .pgc = BIT(IMX8MN_PGC_OTG1),
1244 },
1245
1246 [IMX8MN_POWER_DOMAIN_GPUMIX] = {
1247 .genpd = {
1248 .name = "gpumix",
1249 },
1250 .bits = {
1251 .pxx = IMX8MN_GPUMIX_SW_Pxx_REQ,
1252 .map = IMX8MN_GPUMIX_A53_DOMAIN,
1253 .hskreq = IMX8MN_GPUMIX_HSK_PWRDNREQN,
1254 .hskack = IMX8MN_GPUMIX_HSK_PWRDNACKN,
1255 },
1256 .pgc = BIT(IMX8MN_PGC_GPUMIX),
1257 .keep_clocks = true,
1258 },
1259
1260 [IMX8MN_POWER_DOMAIN_DISPMIX] = {
1261 .genpd = {
1262 .name = "dispmix",
1263 },
1264 .bits = {
1265 .pxx = IMX8MN_DISPMIX_SW_Pxx_REQ,
1266 .map = IMX8MN_DISPMIX_A53_DOMAIN,
1267 .hskreq = IMX8MN_DISPMIX_HSK_PWRDNREQN,
1268 .hskack = IMX8MN_DISPMIX_HSK_PWRDNACKN,
1269 },
1270 .pgc = BIT(IMX8MN_PGC_DISPMIX),
1271 .keep_clocks = true,
1272 },
1273
1274 [IMX8MN_POWER_DOMAIN_MIPI] = {
1275 .genpd = {
1276 .name = "mipi",
1277 },
1278 .bits = {
1279 .pxx = IMX8MN_MIPI_SW_Pxx_REQ,
1280 .map = IMX8MN_MIPI_A53_DOMAIN,
1281 },
1282 .pgc = BIT(IMX8MN_PGC_MIPI),
1283 },
1284};
1285
1286static const struct regmap_range imx8mn_yes_ranges[] = {
1287 regmap_reg_range(GPC_LPCR_A_CORE_BSC,
1288 GPC_PU_PWRHSK),
1289 regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_MIPI),
1290 GPC_PGC_SR(IMX8MN_PGC_MIPI)),
1291 regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_OTG1),
1292 GPC_PGC_SR(IMX8MN_PGC_OTG1)),
1293 regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_DDR1),
1294 GPC_PGC_SR(IMX8MN_PGC_DDR1)),
1295 regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_GPUMIX),
1296 GPC_PGC_SR(IMX8MN_PGC_GPUMIX)),
1297 regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_DISPMIX),
1298 GPC_PGC_SR(IMX8MN_PGC_DISPMIX)),
1299};
1300
1301static const struct regmap_access_table imx8mn_access_table = {
1302 .yes_ranges = imx8mn_yes_ranges,
1303 .n_yes_ranges = ARRAY_SIZE(imx8mn_yes_ranges),
1304};
1305
1306static const struct imx_pgc_domain_data imx8mn_pgc_domain_data = {
1307 .domains = imx8mn_pgc_domains,
1308 .domains_num = ARRAY_SIZE(imx8mn_pgc_domains),
1309 .reg_access_table = &imx8mn_access_table,
1310 .pgc_regs = &imx7_pgc_regs,
1311};
1312
1313static int imx_pgc_domain_probe(struct platform_device *pdev)
1314{
1315 struct imx_pgc_domain *domain = pdev->dev.platform_data;
1316 int ret;
1317
1318 domain->dev = &pdev->dev;
1319
1320 domain->regulator = devm_regulator_get_optional(domain->dev, "power");
1321 if (IS_ERR(domain->regulator)) {
1322 if (PTR_ERR(domain->regulator) != -ENODEV)
1323 return dev_err_probe(domain->dev, PTR_ERR(domain->regulator),
1324 "Failed to get domain's regulator\n");
1325 } else if (domain->voltage) {
1326 regulator_set_voltage(domain->regulator,
1327 domain->voltage, domain->voltage);
1328 }
1329
1330 domain->num_clks = devm_clk_bulk_get_all(domain->dev, &domain->clks);
1331 if (domain->num_clks < 0)
1332 return dev_err_probe(domain->dev, domain->num_clks,
1333 "Failed to get domain's clocks\n");
1334
1335 domain->reset = devm_reset_control_array_get_optional_exclusive(domain->dev);
1336 if (IS_ERR(domain->reset))
1337 return dev_err_probe(domain->dev, PTR_ERR(domain->reset),
1338 "Failed to get domain's resets\n");
1339
1340 pm_runtime_enable(domain->dev);
1341
1342 if (domain->bits.map)
1343 regmap_update_bits(domain->regmap, domain->regs->map,
1344 domain->bits.map, domain->bits.map);
1345
1346 ret = pm_genpd_init(&domain->genpd, NULL, true);
1347 if (ret) {
1348 dev_err(domain->dev, "Failed to init power domain\n");
1349 goto out_domain_unmap;
1350 }
1351
1352 if (IS_ENABLED(CONFIG_LOCKDEP) &&
1353 of_property_read_bool(domain->dev->of_node, "power-domains"))
1354 lockdep_set_subclass(&domain->genpd.mlock, 1);
1355
1356 ret = of_genpd_add_provider_simple(domain->dev->of_node,
1357 &domain->genpd);
1358 if (ret) {
1359 dev_err(domain->dev, "Failed to add genpd provider\n");
1360 goto out_genpd_remove;
1361 }
1362
1363 return 0;
1364
1365out_genpd_remove:
1366 pm_genpd_remove(&domain->genpd);
1367out_domain_unmap:
1368 if (domain->bits.map)
1369 regmap_update_bits(domain->regmap, domain->regs->map,
1370 domain->bits.map, 0);
1371 pm_runtime_disable(domain->dev);
1372
1373 return ret;
1374}
1375
1376static int imx_pgc_domain_remove(struct platform_device *pdev)
1377{
1378 struct imx_pgc_domain *domain = pdev->dev.platform_data;
1379
1380 of_genpd_del_provider(domain->dev->of_node);
1381 pm_genpd_remove(&domain->genpd);
1382
1383 if (domain->bits.map)
1384 regmap_update_bits(domain->regmap, domain->regs->map,
1385 domain->bits.map, 0);
1386
1387 pm_runtime_disable(domain->dev);
1388
1389 return 0;
1390}
1391
1392#ifdef CONFIG_PM_SLEEP
1393static int imx_pgc_domain_suspend(struct device *dev)
1394{
1395 int ret;
1396
1397 /*
1398 * This may look strange, but is done so the generic PM_SLEEP code
1399 * can power down our domain and more importantly power it up again
1400 * after resume, without tripping over our usage of runtime PM to
1401 * power up/down the nested domains.
1402 */
1403 ret = pm_runtime_get_sync(dev);
1404 if (ret < 0) {
1405 pm_runtime_put_noidle(dev);
1406 return ret;
1407 }
1408
1409 return 0;
1410}
1411
1412static int imx_pgc_domain_resume(struct device *dev)
1413{
1414 return pm_runtime_put(dev);
1415}
1416#endif
1417
1418static const struct dev_pm_ops imx_pgc_domain_pm_ops = {
1419 SET_SYSTEM_SLEEP_PM_OPS(imx_pgc_domain_suspend, imx_pgc_domain_resume)
1420};
1421
1422static const struct platform_device_id imx_pgc_domain_id[] = {
1423 { "imx-pgc-domain", },
1424 { },
1425};
1426
1427static struct platform_driver imx_pgc_domain_driver = {
1428 .driver = {
1429 .name = "imx-pgc",
1430 .pm = &imx_pgc_domain_pm_ops,
1431 },
1432 .probe = imx_pgc_domain_probe,
1433 .remove = imx_pgc_domain_remove,
1434 .id_table = imx_pgc_domain_id,
1435};
1436builtin_platform_driver(imx_pgc_domain_driver)
1437
1438static int imx_gpcv2_probe(struct platform_device *pdev)
1439{
1440 const struct imx_pgc_domain_data *domain_data =
1441 of_device_get_match_data(&pdev->dev);
1442
1443 struct regmap_config regmap_config = {
1444 .reg_bits = 32,
1445 .val_bits = 32,
1446 .reg_stride = 4,
1447 .rd_table = domain_data->reg_access_table,
1448 .wr_table = domain_data->reg_access_table,
1449 .max_register = SZ_4K,
1450 };
1451 struct device *dev = &pdev->dev;
1452 struct device_node *pgc_np, *np;
1453 struct regmap *regmap;
1454 void __iomem *base;
1455 int ret;
1456
1457 pgc_np = of_get_child_by_name(dev->of_node, "pgc");
1458 if (!pgc_np) {
1459 dev_err(dev, "No power domains specified in DT\n");
1460 return -EINVAL;
1461 }
1462
1463 base = devm_platform_ioremap_resource(pdev, 0);
1464 if (IS_ERR(base))
1465 return PTR_ERR(base);
1466
1467 regmap = devm_regmap_init_mmio(dev, base, ®map_config);
1468 if (IS_ERR(regmap)) {
1469 ret = PTR_ERR(regmap);
1470 dev_err(dev, "failed to init regmap (%d)\n", ret);
1471 return ret;
1472 }
1473
1474 for_each_child_of_node(pgc_np, np) {
1475 struct platform_device *pd_pdev;
1476 struct imx_pgc_domain *domain;
1477 u32 domain_index;
1478
1479 if (!of_device_is_available(np))
1480 continue;
1481
1482 ret = of_property_read_u32(np, "reg", &domain_index);
1483 if (ret) {
1484 dev_err(dev, "Failed to read 'reg' property\n");
1485 of_node_put(np);
1486 return ret;
1487 }
1488
1489 if (domain_index >= domain_data->domains_num) {
1490 dev_warn(dev,
1491 "Domain index %d is out of bounds\n",
1492 domain_index);
1493 continue;
1494 }
1495
1496 pd_pdev = platform_device_alloc("imx-pgc-domain",
1497 domain_index);
1498 if (!pd_pdev) {
1499 dev_err(dev, "Failed to allocate platform device\n");
1500 of_node_put(np);
1501 return -ENOMEM;
1502 }
1503
1504 ret = platform_device_add_data(pd_pdev,
1505 &domain_data->domains[domain_index],
1506 sizeof(domain_data->domains[domain_index]));
1507 if (ret) {
1508 platform_device_put(pd_pdev);
1509 of_node_put(np);
1510 return ret;
1511 }
1512
1513 domain = pd_pdev->dev.platform_data;
1514 domain->regmap = regmap;
1515 domain->regs = domain_data->pgc_regs;
1516
1517 domain->genpd.power_on = imx_pgc_power_up;
1518 domain->genpd.power_off = imx_pgc_power_down;
1519
1520 pd_pdev->dev.parent = dev;
1521 pd_pdev->dev.of_node = np;
1522
1523 ret = platform_device_add(pd_pdev);
1524 if (ret) {
1525 platform_device_put(pd_pdev);
1526 of_node_put(np);
1527 return ret;
1528 }
1529 }
1530
1531 return 0;
1532}
1533
1534static const struct of_device_id imx_gpcv2_dt_ids[] = {
1535 { .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
1536 { .compatible = "fsl,imx8mm-gpc", .data = &imx8mm_pgc_domain_data, },
1537 { .compatible = "fsl,imx8mn-gpc", .data = &imx8mn_pgc_domain_data, },
1538 { .compatible = "fsl,imx8mp-gpc", .data = &imx8mp_pgc_domain_data, },
1539 { .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
1540 { }
1541};
1542
1543static struct platform_driver imx_gpc_driver = {
1544 .driver = {
1545 .name = "imx-gpcv2",
1546 .of_match_table = imx_gpcv2_dt_ids,
1547 },
1548 .probe = imx_gpcv2_probe,
1549};
1550builtin_platform_driver(imx_gpc_driver)