1 // SPDX-License-Identifier: GPL-2.0+
8  * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
18 #include <dt-bindings/power/imx7-power.h>
19 #include <dt-bindings/power/imx8mq-power.h>
139 	const bool has_regulator = !IS_ERR(domain->regulator);  in imx_gpc_pu_pgc_sw_pxx_req()
143 	regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING,  in imx_gpc_pu_pgc_sw_pxx_req()
144 			   domain->bits.map, domain->bits.map);  in imx_gpc_pu_pgc_sw_pxx_req()
147 		ret = regulator_enable(domain->regulator);  in imx_gpc_pu_pgc_sw_pxx_req()
149 			dev_err(domain->dev, "failed to enable regulator\n");  in imx_gpc_pu_pgc_sw_pxx_req()
155 	for (i = 0; i < domain->num_clks; i++)  in imx_gpc_pu_pgc_sw_pxx_req()
156 		clk_prepare_enable(domain->clk[i]);  in imx_gpc_pu_pgc_sw_pxx_req()
159 		regmap_update_bits(domain->regmap, GPC_PGC_CTRL(domain->pgc),  in imx_gpc_pu_pgc_sw_pxx_req()
162 	if (domain->bits.hsk)  in imx_gpc_pu_pgc_sw_pxx_req()
163 		regmap_update_bits(domain->regmap, GPC_PU_PWRHSK,  in imx_gpc_pu_pgc_sw_pxx_req()
164 				   domain->bits.hsk, on ? domain->bits.hsk : 0);  in imx_gpc_pu_pgc_sw_pxx_req()
166 	regmap_update_bits(domain->regmap, offset,  in imx_gpc_pu_pgc_sw_pxx_req()
167 			   domain->bits.pxx, domain->bits.pxx);  in imx_gpc_pu_pgc_sw_pxx_req()
173 	ret = regmap_read_poll_timeout(domain->regmap, offset, pxx_req,  in imx_gpc_pu_pgc_sw_pxx_req()
174 				       !(pxx_req & domain->bits.pxx),  in imx_gpc_pu_pgc_sw_pxx_req()
177 		dev_err(domain->dev, "failed to command PGC\n");  in imx_gpc_pu_pgc_sw_pxx_req()
183 		 * power down -- keep the regulator on  in imx_gpc_pu_pgc_sw_pxx_req()
189 		regmap_update_bits(domain->regmap, GPC_PGC_CTRL(domain->pgc),  in imx_gpc_pu_pgc_sw_pxx_req()
193 	for (i = 0; i < domain->num_clks; i++)  in imx_gpc_pu_pgc_sw_pxx_req()
194 		clk_disable_unprepare(domain->clk[i]);  in imx_gpc_pu_pgc_sw_pxx_req()
199 		err = regulator_disable(domain->regulator);  in imx_gpc_pu_pgc_sw_pxx_req()
201 			dev_err(domain->dev,  in imx_gpc_pu_pgc_sw_pxx_req()
207 	regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING,  in imx_gpc_pu_pgc_sw_pxx_req()
208 			   domain->bits.map, 0);  in imx_gpc_pu_pgc_sw_pxx_req()
225 			.name      = "mipi-phy",
237 			.name      = "pcie-phy",
249 			.name      = "usb-hsic-phy",
307 			.name = "usb-otg1",
318 			.name = "usb-otg2",
352 			.name = "vpu",
376 			.name = "mipi-csi1",
387 			.name = "mipi-csi2",
451 		struct clk *clk = of_clk_get(domain->dev->of_node, i);  in imx_pgc_get_clocks()
455 			dev_err(domain->dev, "more than %d clocks\n",  in imx_pgc_get_clocks()
457 			ret = -EINVAL;  in imx_pgc_get_clocks()
460 		domain->clk[i] = clk;  in imx_pgc_get_clocks()
462 	domain->num_clks = i;  in imx_pgc_get_clocks()
467 	while (i--)  in imx_pgc_get_clocks()
468 		clk_put(domain->clk[i]);  in imx_pgc_get_clocks()
477 	for (i = domain->num_clks - 1; i >= 0; i--)  in imx_pgc_put_clocks()
478 		clk_put(domain->clk[i]);  in imx_pgc_put_clocks()
483 	struct imx_pgc_domain *domain = pdev->dev.platform_data;  in imx_pgc_domain_probe()
486 	domain->dev = &pdev->dev;  in imx_pgc_domain_probe()
488 	domain->regulator = devm_regulator_get_optional(domain->dev, "power");  in imx_pgc_domain_probe()
489 	if (IS_ERR(domain->regulator)) {  in imx_pgc_domain_probe()
490 		if (PTR_ERR(domain->regulator) != -ENODEV)  in imx_pgc_domain_probe()
491 			return dev_err_probe(domain->dev, PTR_ERR(domain->regulator),  in imx_pgc_domain_probe()
493 	} else if (domain->voltage) {  in imx_pgc_domain_probe()
494 		regulator_set_voltage(domain->regulator,  in imx_pgc_domain_probe()
495 				      domain->voltage, domain->voltage);  in imx_pgc_domain_probe()
500 		return dev_err_probe(domain->dev, ret, "Failed to get domain's clocks\n");  in imx_pgc_domain_probe()
502 	ret = pm_genpd_init(&domain->genpd, NULL, true);  in imx_pgc_domain_probe()
504 		dev_err(domain->dev, "Failed to init power domain\n");  in imx_pgc_domain_probe()
509 	ret = of_genpd_add_provider_simple(domain->dev->of_node,  in imx_pgc_domain_probe()
510 					   &domain->genpd);  in imx_pgc_domain_probe()
512 		dev_err(domain->dev, "Failed to add genpd provider\n");  in imx_pgc_domain_probe()
513 		pm_genpd_remove(&domain->genpd);  in imx_pgc_domain_probe()
522 	struct imx_pgc_domain *domain = pdev->dev.platform_data;  in imx_pgc_domain_remove()
524 	of_genpd_del_provider(domain->dev->of_node);  in imx_pgc_domain_remove()
525 	pm_genpd_remove(&domain->genpd);  in imx_pgc_domain_remove()
532 	{ "imx-pgc-domain", },
538 		.name = "imx-pgc",
549 			of_device_get_match_data(&pdev->dev);  in builtin_platform_driver()
555 		.rd_table	= domain_data->reg_access_table,  in builtin_platform_driver()
556 		.wr_table	= domain_data->reg_access_table,  in builtin_platform_driver()
559 	struct device *dev = &pdev->dev;  in builtin_platform_driver()
565 	pgc_np = of_get_child_by_name(dev->of_node, "pgc");  in builtin_platform_driver()
568 		return -EINVAL;  in builtin_platform_driver()
594 		if (domain_index >= domain_data->domains_num) {  in builtin_platform_driver()
601 		pd_pdev = platform_device_alloc("imx-pgc-domain",  in builtin_platform_driver()
606 			return -ENOMEM;  in builtin_platform_driver()
610 					       &domain_data->domains[domain_index],  in builtin_platform_driver()
611 					       sizeof(domain_data->domains[domain_index]));  in builtin_platform_driver()
618 		domain = pd_pdev->dev.platform_data;  in builtin_platform_driver()
619 		domain->regmap = regmap;  in builtin_platform_driver()
620 		domain->genpd.power_on  = imx_gpc_pu_pgc_sw_pup_req;  in builtin_platform_driver()
621 		domain->genpd.power_off = imx_gpc_pu_pgc_sw_pdn_req;  in builtin_platform_driver()
623 		pd_pdev->dev.parent = dev;  in builtin_platform_driver()
624 		pd_pdev->dev.of_node = np;  in builtin_platform_driver()
638 	{ .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
639 	{ .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
645 		.name = "imx-gpcv2",