[PATCH v16 07/14] firmware: psci: Implement vendor-specific resets as reboot-mode

[Shivendra Pratap]

On 10/15/2025 12:25 PM, Pavan Kondeti wrote:
> On Wed, Oct 15, 2025 at 10:08:22AM +0530, Shivendra Pratap wrote:
>> +static int __init psci_init_vendor_reset(void)
>> +{
>> +	struct reboot_mode_driver *reboot;
>> +	struct device_node *psci_np;
>> +	struct device_node *np;
>> +	int ret;
>> +
>> +	if (!psci_system_reset2_supported)
>> +		return -EINVAL;
>> +
>> +	psci_np = of_find_compatible_node(NULL, NULL, "arm,psci-1.0");
>> +	if (!psci_np)
>> +		return -ENODEV;
>> +
>> +	np = of_find_node_by_name(psci_np, "reboot-mode");
>> +	if (!np) {
>> +		of_node_put(psci_np);
>> +		return -ENODEV;
>> +	}
>> +
>> +	ret = atomic_notifier_chain_register(&panic_notifier_list, &psci_panic_block);
>> +	if (ret)
>> +		goto err_notifier;
>> +
>> +	reboot = kzalloc(sizeof(*reboot), GFP_KERNEL);
>> +	if (!reboot) {
>> +		ret = -ENOMEM;
>> +		goto err_kzalloc;
>> +	}
>> +
>> +	reboot->write = psci_set_vendor_sys_reset2;
>> +	reboot->driver_name = "psci";
>> +
>> +	ret = reboot_mode_register(reboot, of_fwnode_handle(np));
>> +	if (ret)
>> +		goto err_register;
>> +
> 
> minor nit: np and psci_np reference must be dropped since we are done
> using it.

Ack. Sure. thanks. Will update this.

thanks,
Shivendra