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()
399 	if (!domain->keep_clocks)  in imx_pgc_power_up()
400 		clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_up()
405 	clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_up()
407 	if (!IS_ERR(domain->regulator))  in imx_pgc_power_up()
408 		regulator_disable(domain->regulator);  in imx_pgc_power_up()
410 	pm_runtime_put(domain->dev);  in imx_pgc_power_up()
422 	if (!domain->keep_clocks) {  in imx_pgc_power_down()
423 		ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);  in imx_pgc_power_down()
425 			dev_err(domain->dev, "failed to enable reset clocks\n");  in imx_pgc_power_down()
431 	if (domain->bits.hskreq) {  in imx_pgc_power_down()
432 		regmap_clear_bits(domain->regmap, domain->regs->hsk,  in imx_pgc_power_down()
433 				  domain->bits.hskreq);  in imx_pgc_power_down()
435 		ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk,  in imx_pgc_power_down()
437 					       !(reg_val & domain->bits.hskack),  in imx_pgc_power_down()
440 			dev_err(domain->dev, "failed to power down ADB400\n");  in imx_pgc_power_down()
445 	if (domain->bits.pxx) {  in imx_pgc_power_down()
447 		for_each_set_bit(pgc, &domain->pgc, 32) {  in imx_pgc_power_down()
448 			regmap_update_bits(domain->regmap, GPC_PGC_CTRL(pgc),  in imx_pgc_power_down()
453 		regmap_update_bits(domain->regmap, domain->regs->pdn,  in imx_pgc_power_down()
454 				   domain->bits.pxx, domain->bits.pxx);  in imx_pgc_power_down()
459 		ret = regmap_read_poll_timeout(domain->regmap,  in imx_pgc_power_down()
460 					       domain->regs->pdn, reg_val,  in imx_pgc_power_down()
461 					       !(reg_val & domain->bits.pxx),  in imx_pgc_power_down()
464 			dev_err(domain->dev, "failed to command PGC\n");  in imx_pgc_power_down()
470 	clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_down()
472 	if (!IS_ERR(domain->regulator)) {  in imx_pgc_power_down()
473 		ret = regulator_disable(domain->regulator);  in imx_pgc_power_down()
475 			dev_err(domain->dev,  in imx_pgc_power_down()
482 	pm_runtime_put_sync_suspend(domain->dev);  in imx_pgc_power_down()
487 	if (!domain->keep_clocks)  in imx_pgc_power_down()
488 		clk_bulk_disable_unprepare(domain->num_clks, domain->clks);  in imx_pgc_power_down()
496 			.name      = "mipi-phy",
508 			.name      = "pcie-phy",
520 			.name      = "usb-hsic-phy",
586 			.name = "usb-otg1",
597 			.name = "usb-otg2",
659 			.name = "mipi-csi1",
670 			.name = "mipi-csi2",
746 			.name = "pcie",
757 			.name = "usb-otg1",
769 			.name = "usb-otg2",
822 			.name = "vpu-g1",
833 			.name = "vpu-g2",
844 			.name = "vpu-h1",
926 			.name = "mipi-phy1",
937 			.name = "pcie-phy1",
948 			.name = "usb-otg1",
959 			.name = "usb-otg2",
1062 			.name = "vpu-g1",
1073 			.name = "vpu-g2",
1084 			.name = "vpu-h1",
1109 			.name = "hdmi-phy",
1120 			.name = "mipi-phy2",
1145 			.name = "mediamix-isp-dwp",
1236 			.name = "usb-otg1",
1315 	struct imx_pgc_domain *domain = pdev->dev.platform_data;  in imx_pgc_domain_probe()
1318 	domain->dev = &pdev->dev;  in imx_pgc_domain_probe()
1320 	domain->regulator = devm_regulator_get_optional(domain->dev, "power");  in imx_pgc_domain_probe()
1321 	if (IS_ERR(domain->regulator)) {  in imx_pgc_domain_probe()
1322 		if (PTR_ERR(domain->regulator) != -ENODEV)  in imx_pgc_domain_probe()
1323 			return dev_err_probe(domain->dev, PTR_ERR(domain->regulator),  in imx_pgc_domain_probe()
1325 	} else if (domain->voltage) {  in imx_pgc_domain_probe()
1326 		regulator_set_voltage(domain->regulator,  in imx_pgc_domain_probe()
1327 				      domain->voltage, domain->voltage);  in imx_pgc_domain_probe()
1330 	domain->num_clks = devm_clk_bulk_get_all(domain->dev, &domain->clks);  in imx_pgc_domain_probe()
1331 	if (domain->num_clks < 0)  in imx_pgc_domain_probe()
1332 		return dev_err_probe(domain->dev, domain->num_clks,  in imx_pgc_domain_probe()
1335 	domain->reset = devm_reset_control_array_get_optional_exclusive(domain->dev);  in imx_pgc_domain_probe()
1336 	if (IS_ERR(domain->reset))  in imx_pgc_domain_probe()
1337 		return dev_err_probe(domain->dev, PTR_ERR(domain->reset),  in imx_pgc_domain_probe()
1340 	pm_runtime_enable(domain->dev);  in imx_pgc_domain_probe()
1342 	if (domain->bits.map)  in imx_pgc_domain_probe()
1343 		regmap_update_bits(domain->regmap, domain->regs->map,  in imx_pgc_domain_probe()
1344 				   domain->bits.map, domain->bits.map);  in imx_pgc_domain_probe()
1346 	ret = pm_genpd_init(&domain->genpd, NULL, true);  in imx_pgc_domain_probe()
1348 		dev_err(domain->dev, "Failed to init power domain\n");  in imx_pgc_domain_probe()
1353 	    of_property_read_bool(domain->dev->of_node, "power-domains"))  in imx_pgc_domain_probe()
1354 		lockdep_set_subclass(&domain->genpd.mlock, 1);  in imx_pgc_domain_probe()
1356 	ret = of_genpd_add_provider_simple(domain->dev->of_node,  in imx_pgc_domain_probe()
1357 					   &domain->genpd);  in imx_pgc_domain_probe()
1359 		dev_err(domain->dev, "Failed to add genpd provider\n");  in imx_pgc_domain_probe()
1366 	pm_genpd_remove(&domain->genpd);  in imx_pgc_domain_probe()
1368 	if (domain->bits.map)  in imx_pgc_domain_probe()
1369 		regmap_update_bits(domain->regmap, domain->regs->map,  in imx_pgc_domain_probe()
1370 				   domain->bits.map, 0);  in imx_pgc_domain_probe()
1371 	pm_runtime_disable(domain->dev);  in imx_pgc_domain_probe()
1378 	struct imx_pgc_domain *domain = pdev->dev.platform_data;  in imx_pgc_domain_remove()
1380 	of_genpd_del_provider(domain->dev->of_node);  in imx_pgc_domain_remove()
1381 	pm_genpd_remove(&domain->genpd);  in imx_pgc_domain_remove()
1383 	if (domain->bits.map)  in imx_pgc_domain_remove()
1384 		regmap_update_bits(domain->regmap, domain->regs->map,  in imx_pgc_domain_remove()
1385 				   domain->bits.map, 0);  in imx_pgc_domain_remove()
1387 	pm_runtime_disable(domain->dev);  in imx_pgc_domain_remove()
1423 	{ "imx-pgc-domain", },
1429 		.name = "imx-pgc",
1441 			of_device_get_match_data(&pdev->dev);  in builtin_platform_driver()
1447 		.rd_table	= domain_data->reg_access_table,  in builtin_platform_driver()
1448 		.wr_table	= domain_data->reg_access_table,  in builtin_platform_driver()
1451 	struct device *dev = &pdev->dev;  in builtin_platform_driver()
1457 	pgc_np = of_get_child_by_name(dev->of_node, "pgc");  in builtin_platform_driver()
1460 		return -EINVAL;  in builtin_platform_driver()
1489 		if (domain_index >= domain_data->domains_num) {  in builtin_platform_driver()
1496 		pd_pdev = platform_device_alloc("imx-pgc-domain",  in builtin_platform_driver()
1501 			return -ENOMEM;  in builtin_platform_driver()
1505 					       &domain_data->domains[domain_index],  in builtin_platform_driver()
1506 					       sizeof(domain_data->domains[domain_index]));  in builtin_platform_driver()
1513 		domain = pd_pdev->dev.platform_data;  in builtin_platform_driver()
1514 		domain->regmap = regmap;  in builtin_platform_driver()
1515 		domain->regs = domain_data->pgc_regs;  in builtin_platform_driver()
1517 		domain->genpd.power_on  = imx_pgc_power_up;  in builtin_platform_driver()
1518 		domain->genpd.power_off = imx_pgc_power_down;  in builtin_platform_driver()
1520 		pd_pdev->dev.parent = dev;  in builtin_platform_driver()
1521 		device_set_node(&pd_pdev->dev, of_fwnode_handle(np));  in builtin_platform_driver()
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, },
1545 		.name = "imx-gpcv2",