firmware: xilinx: Add system shutdown API interface

Add system shutdown API interface which asks firmware to perform system shutdown/restart.

Rajan Vaja committed 6 years ago

Commit fdd2ed81 parent ae5c9612 files · +19 −0Browse files

Unified · Split

2 files

@@ -875,6 +875,19 @@ int zynqmp_pm_aes_engine(const u64 address, u32 *out) · 874 unmodified lines
875	875	}
876	876	EXPORT_SYMBOL_GPL(zynqmp_pm_aes_engine);
877	877
	878	+/**
	879	+ * zynqmp_pm_system_shutdown - PM call to request a system shutdown or restart
	880	+ * @type: Shutdown or restart? 0 for shutdown, 1 for restart
	881	+ * @subtype: Specifies which system should be restarted or shut down
	882	+ *
	883	+ * Return: Returns status, either success or error+reason
	884	+ */
	885	+int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype)
	886	+{
	887	+ return zynqmp_pm_invoke_fn(PM_SYSTEM_SHUTDOWN, type, subtype,
	888	+ 0, 0, NULL);
	889	+}
	890	+
878	891	static ssize_t ggs_show(struct device *device,
879	892	struct device_attribute *attr,
880	893	char *buf,

@@ -64,6 +64,7 @@ · 63 unmodified lines
64	64
65	65	enum pm_api_id {
66	66	PM_GET_API_VERSION = 1,
	67	+ PM_SYSTEM_SHUTDOWN = 12,
67	68	PM_REQUEST_NODE = 13,
68	69	PM_RELEASE_NODE,
69	70	PM_SET_REQUIREMENT,
@@ -340,6 +341,7 @@ int zynqmp_pm_write_ggs(u32 index, u32 value); · 270 unmodified lines
340	341	int zynqmp_pm_read_ggs(u32 index, u32 *value);
341	342	int zynqmp_pm_write_pggs(u32 index, u32 value);
342	343	int zynqmp_pm_read_pggs(u32 index, u32 *value);
	344	+int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype);
343	345	#else
344	346	static inline struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void)
345	347	{
@@ -482,6 +484,10 @@ static inline int zynqmp_pm_read_pggs(u32 index, u32 *value) · 136 unmodified lines
482	484	{
483	485	return -ENODEV;
484	486	}
	487	+static inline int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype)
	488	+{
	489	+ return -ENODEV;
	490	+}
485	491	#endif
486	492
487	493	#endif /* __FIRMWARE_ZYNQMP_H__ */