1 // SPDX-License-Identifier: GPL-2.0
8 #include <power-domain-uclass.h>
10 #include <asm/arch/power-domain.h>
11 #include <dm/device-internal.h>
37 	struct udevice *dev = power_domain->dev;  in imx8_power_domain_on()
46 	/* Need to power on parent node first */  in imx8_power_domain_on()
57 	debug("%s(power_domain=%s) resource_id %d\n", __func__, dev->name,  in imx8_power_domain_on()
58 	      pdata->resource_id);  in imx8_power_domain_on()
60 	/* Already powered on */  in imx8_power_domain_on()
61 	if (ppriv->state_on)  in imx8_power_domain_on()
64 	if (pdata->resource_id != SC_R_LAST) {  in imx8_power_domain_on()
65 		ret = sc_pm_set_resource_power_mode(-1, pdata->resource_id,  in imx8_power_domain_on()
69 			       dev->name, ret);  in imx8_power_domain_on()
70 			return -EIO;  in imx8_power_domain_on()
74 	ppriv->state_on = true;  in imx8_power_domain_on()
75 	debug("%s is powered on\n", dev->name);  in imx8_power_domain_on()
82 	struct udevice *dev = power_domain->dev;  in imx8_power_domain_off_node()
92 	debug("%s, %s, state_on %d\n", __func__, dev->name, ppriv->state_on);  in imx8_power_domain_off_node()
94 	/* Already powered off */  in imx8_power_domain_off_node()
95 	if (!ppriv->state_on)  in imx8_power_domain_off_node()
105 			if (child_ppriv->state_on)  in imx8_power_domain_off_node()
106 				return -EPERM;  in imx8_power_domain_off_node()
110 	if (pdata->resource_id != SC_R_LAST) {  in imx8_power_domain_off_node()
111 		if (!sc_rm_is_resource_owned(-1, pdata->resource_id)) {  in imx8_power_domain_off_node()
112 			printf("%s not owned by curr partition\n", dev->name);  in imx8_power_domain_off_node()
115 		ret = sc_pm_set_resource_power_mode(-1, pdata->resource_id,  in imx8_power_domain_off_node()
119 			       dev->name, ret);  in imx8_power_domain_off_node()
120 			return -EIO;  in imx8_power_domain_off_node()
124 	ppriv->state_on = false;  in imx8_power_domain_off_node()
125 	debug("%s is powered off\n", dev->name);  in imx8_power_domain_off_node()
132 	struct udevice *dev = power_domain->dev;  in imx8_power_domain_off_parentnodes()
146 		debug("%s, %s, state_on %d\n", __func__, parent->name,  in imx8_power_domain_off_parentnodes()
147 		      ppriv->state_on);  in imx8_power_domain_off_parentnodes()
149 		/* Already powered off */  in imx8_power_domain_off_parentnodes()
150 		if (!ppriv->state_on)  in imx8_power_domain_off_parentnodes()
162 				/* Find a power on sibling */  in imx8_power_domain_off_parentnodes()
163 				if (child_ppriv->state_on) {  in imx8_power_domain_off_parentnodes()
165 					      child->name,  in imx8_power_domain_off_parentnodes()
166 					      child_ppriv->state_on);  in imx8_power_domain_off_parentnodes()
173 		if (pdata->resource_id != SC_R_LAST) {  in imx8_power_domain_off_parentnodes()
174 			ret = sc_pm_set_resource_power_mode(-1,  in imx8_power_domain_off_parentnodes()
175 							    pdata->resource_id,  in imx8_power_domain_off_parentnodes()
179 				       parent->name, ret);  in imx8_power_domain_off_parentnodes()
180 				return -EIO;  in imx8_power_domain_off_parentnodes()
184 		ppriv->state_on = false;  in imx8_power_domain_off_parentnodes()
185 		debug("%s is powered off\n", parent->name);  in imx8_power_domain_off_parentnodes()
204 		      power_domain->dev->name, ret);  in imx8_power_domain_off()
212 		       power_domain->dev->name, ret);  in imx8_power_domain_off()
238 	for (offset = fdt_first_subnode(gd->fdt_blob, offset); offset > 0;  in imx8_power_domain_bind()
239 	     offset = fdt_next_subnode(gd->fdt_blob, offset)) {  in imx8_power_domain_bind()
241 		name = fdt_get_name(gd->fdt_blob, offset, NULL);  in imx8_power_domain_bind()
243 		ret = device_bind_with_driver_data(dev, dev->driver, name,  in imx8_power_domain_bind()
244 						   dev->driver_data,  in imx8_power_domain_bind()
248 		if (ret == -ENODEV)  in imx8_power_domain_bind()
250 			       dev->driver->name);  in imx8_power_domain_bind()
254 			       dev->driver->name, ret);  in imx8_power_domain_bind()
264 	debug("%s(dev=%s)\n", __func__, dev->name);  in imx8_power_domain_probe()
270 		ppriv->state_on = false;  in imx8_power_domain_probe()
280 	reg = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "reg", -1);  in imx8_power_domain_ofdata_to_platdata()
281 	if (reg == -1) {  in imx8_power_domain_ofdata_to_platdata()
283 		return -EINVAL;  in imx8_power_domain_ofdata_to_platdata()
285 	pdata->resource_id = (sc_rsrc_t)reg;  in imx8_power_domain_ofdata_to_platdata()
287 	debug("%s resource_id %d\n", __func__, pdata->resource_id);  in imx8_power_domain_ofdata_to_platdata()
293 	{ .compatible = "nxp,imx8-pd" },
300 	.on = imx8_power_domain_on,