pmdomain/xilinx/zynqmp-pm-domains.c

3  * ZynqMP Generic PM domain support
28  * @gpd:		Generic power domain
29  * @node_id:		PM node ID corresponding to device inside PM domain
30  * @requested:		The PM node mapped to the PM domain has been requested
65  * zynqmp_gpd_power_on() - Power on PM domain
66  * @domain:	Generic PM domain
68  * This function is called before devices inside a PM domain are resumed, to
69  * power on PM domain.
73 static int zynqmp_gpd_power_on(struct generic_pm_domain *domain)
75 	struct zynqmp_pm_domain *pd = to_zynqmp_pm_domain(domain);
83 		dev_err(&domain->dev,
89 	dev_dbg(&domain->dev, "set requirement to 0x%x for PM node id %d\n",
96  * zynqmp_gpd_power_off() - Power off PM domain
97  * @domain:	Generic PM domain
99  * This function is called after devices inside a PM domain are suspended, to
100  * power off PM domain.
104 static int zynqmp_gpd_power_off(struct generic_pm_domain *domain)
106 	struct zynqmp_pm_domain *pd = to_zynqmp_pm_domain(domain);
112 	/* If domain is already released there is nothing to be done */
114 		dev_dbg(&domain->dev, "PM node id %d is already released\n",
119 	list_for_each_entry_safe(pdd, tmp, &domain->dev_list, list_node) {
124 				domain->name);
133 		dev_err(&domain->dev,
139 	dev_dbg(&domain->dev, "set requirement to 0x%x for PM node id %d\n",
146  * zynqmp_gpd_attach_dev() - Attach device to the PM domain
147  * @domain:	Generic PM domain
152 static int zynqmp_gpd_attach_dev(struct generic_pm_domain *domain,
155 	struct zynqmp_pm_domain *pd = to_zynqmp_pm_domain(domain);
159 	link = device_link_add(dev, &domain->dev, DL_FLAG_SYNC_STATE_ONLY);
161 		dev_dbg(&domain->dev, "failed to create device link for %s\n",
165 	if (domain->device_count)
171 		dev_err(&domain->dev, "%s request failed for node %d: %d\n",
172 			domain->name, pd->node_id, ret);
178 	dev_dbg(&domain->dev, "%s requested PM node id %d\n",
185  * zynqmp_gpd_detach_dev() - Detach device from the PM domain
186  * @domain:	Generic PM domain
189 static void zynqmp_gpd_detach_dev(struct generic_pm_domain *domain,
192 	struct zynqmp_pm_domain *pd = to_zynqmp_pm_domain(domain);
196 	if (domain->device_count)
201 		dev_err(&domain->dev, "failed to release PM node id %d: %d\n",
208 	dev_dbg(&domain->dev, "%s released PM node id %d\n",
231 	 * Add index in empty node_id of power domain list as no existing
232 	 * power domain found for current index.
277 		pd->gpd.name = kasprintf(GFP_KERNEL, "domain%d", i);