1 // SPDX-License-Identifier: GPL-2.0+
8  * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
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>
322 	ret = pm_runtime_get_sync(domain->dev);  in imx_pgc_power_up()
324 		pm_runtime_put_noidle(domain->dev);  in imx_pgc_power_up()
328 	if (!IS_ERR(domain->regulator)) {  in imx_pgc_power_up()
329 		ret = regulator_enable(domain->regulator);  in imx_pgc_power_up()
331 			dev_err(domain->dev,  in imx_pgc_power_up()
338 	reset_control_assert(domain->reset);  in imx_pgc_power_up()
341 	ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);  in imx_pgc_power_up()
343 		dev_err(domain->dev, "failed to enable reset clocks\n");  in imx_pgc_power_up()
350 	if (domain->bits.pxx) {  in imx_pgc_power_up()
352 		regmap_update_bits(domain->regmap, domain->regs->pup,  in imx_pgc_power_up()
353 				   domain->bits.pxx, domain->bits.pxx);  in imx_pgc_power_up()
358 		ret = regmap_read_poll_timeout(domain->regmap,  in imx_pgc_power_up()
359 					       domain->regs->pup, reg_val,  in imx_pgc_power_up()
360 					       !(reg_val & domain->bits.pxx),  in imx_pgc_power_up()
363 			dev_err(domain->dev, "failed to command PGC\n");  in imx_pgc_power_up()
368 		for_each_set_bit(pgc, &domain->pgc, 32) {  in imx_pgc_power_up()
369 			regmap_clear_bits(domain->regmap, GPC_PGC_CTRL(pgc),  in imx_pgc_power_up()
377 	reset_control_deassert(domain->reset);  in imx_pgc_power_up()
380 	if (domain->bits.hskreq) {  in imx_pgc_power_up()
381 		regmap_update_bits(domain->regmap, domain->regs->hsk,  in imx_pgc_power_up()
382 				   domain->bits.hskreq, domain->bits.hskreq);  in imx_pgc_power_up()
385 		 * ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk, reg_val,  in imx_pgc_power_up()
386 		 *				  (reg_val & domain->bits.hskack), 0,  in imx_pgc_power_up()
389 		 * the BLK-CTL module BUS clk-en bit being set.  in imx_pgc_power_up()
391 		 * There is a separate BLK-CTL module and we will have such a driver for it,  in imx_pgc_power_up()
392 		 * that driver will set the BUS clk-en bit and handshake will be triggered  in imx_pgc_power_up()
398 		 * For some BLK-CTL module (eg. AudioMix on i.MX8MP) doesn't have BUS  in imx_pgc_power_up()
399 		 * clk-en bit, it is better to add delay here, as the BLK-CTL module  in imx_pgc_power_up()
405 		regmap_read_bypassed(domain->regmap, domain->regs->hsk, &reg_val);  in imx_pgc_power_up()
410 	if (!domain->keep_clocks)  in imx_pgc_power_up()
411 		clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_up()
416 	clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_up()
418 	if (!IS_ERR(domain->regulator))  in imx_pgc_power_up()
419 		regulator_disable(domain->regulator);  in imx_pgc_power_up()
421 	pm_runtime_put(domain->dev);  in imx_pgc_power_up()
433 	if (!domain->keep_clocks) {  in imx_pgc_power_down()
434 		ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);  in imx_pgc_power_down()
436 			dev_err(domain->dev, "failed to enable reset clocks\n");  in imx_pgc_power_down()
442 	if (domain->bits.hskreq) {  in imx_pgc_power_down()
443 		regmap_clear_bits(domain->regmap, domain->regs->hsk,  in imx_pgc_power_down()
444 				  domain->bits.hskreq);  in imx_pgc_power_down()
446 		ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk,  in imx_pgc_power_down()
448 					       !(reg_val & domain->bits.hskack),  in imx_pgc_power_down()
451 			dev_err(domain->dev, "failed to power down ADB400\n");  in imx_pgc_power_down()
456 	if (domain->bits.pxx) {  in imx_pgc_power_down()
458 		for_each_set_bit(pgc, &domain->pgc, 32) {  in imx_pgc_power_down()
459 			regmap_update_bits(domain->regmap, GPC_PGC_CTRL(pgc),  in imx_pgc_power_down()
464 		regmap_update_bits(domain->regmap, domain->regs->pdn,  in imx_pgc_power_down()
465 				   domain->bits.pxx, domain->bits.pxx);  in imx_pgc_power_down()
470 		ret = regmap_read_poll_timeout(domain->regmap,  in imx_pgc_power_down()
471 					       domain->regs->pdn, reg_val,  in imx_pgc_power_down()
472 					       !(reg_val & domain->bits.pxx),  in imx_pgc_power_down()
475 			dev_err(domain->dev, "failed to command PGC\n");  in imx_pgc_power_down()
481 	clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_down()
483 	if (!IS_ERR(domain->regulator)) {  in imx_pgc_power_down()
484 		ret = regulator_disable(domain->regulator);  in imx_pgc_power_down()
486 			dev_err(domain->dev,  in imx_pgc_power_down()
493 	pm_runtime_put_sync_suspend(domain->dev);  in imx_pgc_power_down()
498 	if (!domain->keep_clocks)  in imx_pgc_power_down()
499 		clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_down()
507 			.name      = "mipi-phy",
519 			.name      = "pcie-phy",
531 			.name      = "usb-hsic-phy",
597 			.name = "usb-otg1",
608 			.name = "usb-otg2",
670 			.name = "mipi-csi1",
681 			.name = "mipi-csi2",
757 			.name = "pcie",
768 			.name = "usb-otg1",
780 			.name = "usb-otg2",
833 			.name = "vpu-g1",
844 			.name = "vpu-g2",
855 			.name = "vpu-h1",
937 			.name = "mipi-phy1",
948 			.name = "pcie-phy1",
959 			.name = "usb-otg1",
970 			.name = "usb-otg2",
1073 			.name = "vpu-g1",
1084 			.name = "vpu-g2",
1095 			.name = "vpu-h1",
1120 			.name = "hdmi-phy",
1131 			.name = "mipi-phy2",
1156 			.name = "mediamix-isp-dwp",
1247 			.name = "usb-otg1",
1326 	struct imx_pgc_domain *domain = pdev->dev.platform_data;  in imx_pgc_domain_probe()
1329 	domain->dev = &pdev->dev;  in imx_pgc_domain_probe()
1331 	domain->regulator = devm_regulator_get_optional(domain->dev, "power");  in imx_pgc_domain_probe()
1332 	if (IS_ERR(domain->regulator)) {  in imx_pgc_domain_probe()
1333 		if (PTR_ERR(domain->regulator) != -ENODEV)  in imx_pgc_domain_probe()
1334 			return dev_err_probe(domain->dev, PTR_ERR(domain->regulator),  in imx_pgc_domain_probe()
1336 	} else if (domain->voltage) {  in imx_pgc_domain_probe()
1337 		regulator_set_voltage(domain->regulator,  in imx_pgc_domain_probe()
1338 				      domain->voltage, domain->voltage);  in imx_pgc_domain_probe()
1341 	domain->num_clks = devm_clk_bulk_get_all(domain->dev, &domain->clks);  in imx_pgc_domain_probe()
1342 	if (domain->num_clks < 0)  in imx_pgc_domain_probe()
1343 		return dev_err_probe(domain->dev, domain->num_clks,  in imx_pgc_domain_probe()
1346 	domain->reset = devm_reset_control_array_get_optional_exclusive(domain->dev);  in imx_pgc_domain_probe()
1347 	if (IS_ERR(domain->reset))  in imx_pgc_domain_probe()
1348 		return dev_err_probe(domain->dev, PTR_ERR(domain->reset),  in imx_pgc_domain_probe()
1351 	pm_runtime_enable(domain->dev);  in imx_pgc_domain_probe()
1353 	if (domain->bits.map)  in imx_pgc_domain_probe()
1354 		regmap_update_bits(domain->regmap, domain->regs->map,  in imx_pgc_domain_probe()
1355 				   domain->bits.map, domain->bits.map);  in imx_pgc_domain_probe()
1357 	ret = pm_genpd_init(&domain->genpd, NULL, true);  in imx_pgc_domain_probe()
1359 		dev_err(domain->dev, "Failed to init power domain\n");  in imx_pgc_domain_probe()
1364 	    of_property_read_bool(domain->dev->of_node, "power-domains"))  in imx_pgc_domain_probe()
1365 		lockdep_set_subclass(&domain->genpd.mlock, 1);  in imx_pgc_domain_probe()
1367 	ret = of_genpd_add_provider_simple(domain->dev->of_node,  in imx_pgc_domain_probe()
1368 					   &domain->genpd);  in imx_pgc_domain_probe()
1370 		dev_err(domain->dev, "Failed to add genpd provider\n");  in imx_pgc_domain_probe()
1377 	pm_genpd_remove(&domain->genpd);  in imx_pgc_domain_probe()
1379 	if (domain->bits.map)  in imx_pgc_domain_probe()
1380 		regmap_update_bits(domain->regmap, domain->regs->map,  in imx_pgc_domain_probe()
1381 				   domain->bits.map, 0);  in imx_pgc_domain_probe()
1382 	pm_runtime_disable(domain->dev);  in imx_pgc_domain_probe()
1389 	struct imx_pgc_domain *domain = pdev->dev.platform_data;  in imx_pgc_domain_remove()
1391 	of_genpd_del_provider(domain->dev->of_node);  in imx_pgc_domain_remove()
1392 	pm_genpd_remove(&domain->genpd);  in imx_pgc_domain_remove()
1394 	if (domain->bits.map)  in imx_pgc_domain_remove()
1395 		regmap_update_bits(domain->regmap, domain->regs->map,  in imx_pgc_domain_remove()
1396 				   domain->bits.map, 0);  in imx_pgc_domain_remove()
1398 	pm_runtime_disable(domain->dev);  in imx_pgc_domain_remove()
1432 	{ "imx-pgc-domain", },
1438 		.name = "imx-pgc",
1450 			of_device_get_match_data(&pdev->dev);  in builtin_platform_driver()
1456 		.rd_table	= domain_data->reg_access_table,  in builtin_platform_driver()
1457 		.wr_table	= domain_data->reg_access_table,  in builtin_platform_driver()
1460 	struct device *dev = &pdev->dev;  in builtin_platform_driver()
1466 	pgc_np = of_get_child_by_name(dev->of_node, "pgc");  in builtin_platform_driver()
1469 		return -EINVAL;  in builtin_platform_driver()
1497 		if (domain_index >= domain_data->domains_num) {  in builtin_platform_driver()
1504 		pd_pdev = platform_device_alloc("imx-pgc-domain",  in builtin_platform_driver()
1508 			return -ENOMEM;  in builtin_platform_driver()
1512 					       &domain_data->domains[domain_index],  in builtin_platform_driver()
1513 					       sizeof(domain_data->domains[domain_index]));  in builtin_platform_driver()
1519 		domain = pd_pdev->dev.platform_data;  in builtin_platform_driver()
1520 		domain->regmap = regmap;  in builtin_platform_driver()
1521 		domain->regs = domain_data->pgc_regs;  in builtin_platform_driver()
1523 		domain->genpd.power_on  = imx_pgc_power_up;  in builtin_platform_driver()
1524 		domain->genpd.power_off = imx_pgc_power_down;  in builtin_platform_driver()
1526 		pd_pdev->dev.parent = dev;  in builtin_platform_driver()
1527 		device_set_node(&pd_pdev->dev, of_fwnode_handle(np));  in builtin_platform_driver()
1540 	{ .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
1541 	{ .compatible = "fsl,imx8mm-gpc", .data = &imx8mm_pgc_domain_data, },
1542 	{ .compatible = "fsl,imx8mn-gpc", .data = &imx8mn_pgc_domain_data, },
1543 	{ .compatible = "fsl,imx8mp-gpc", .data = &imx8mp_pgc_domain_data, },
1544 	{ .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
1550 		.name = "imx-gpcv2",