@@ -845,6 +845,41 @@ int zynqmp_pm_release_node(const u32 node)
EXPORT_SYMBOL_GPL(zynqmp_pm_release_node);
/**
+ * zynqmp_pm_force_powerdown - PM call to request for another PU or subsystem to
+ * be powered down forcefully
+ * @target: Node ID of the targeted PU or subsystem
+ * @ack: Flag to specify whether acknowledge is requested
+ *
+ * Return: status, either success or error+reason
+ */
+int zynqmp_pm_force_powerdown(const u32 target,
+ const enum zynqmp_pm_request_ack ack)
+{
+ return zynqmp_pm_invoke_fn(PM_FORCE_POWERDOWN, target, ack, 0, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_force_powerdown);
+
+/**
+ * zynqmp_pm_request_wakeup - PM call to wake up selected master or subsystem
+ * @node: Node ID of the master or subsystem
+ * @set_addr: Specifies whether the address argument is relevant
+ * @address: Address from which to resume when woken up
+ * @ack: Flag to specify whether acknowledge requested
+ *
+ * Return: status, either success or error+reason
+ */
+int zynqmp_pm_request_wakeup(const u32 node,
+ const bool set_addr,
+ const u64 address,
+ const enum zynqmp_pm_request_ack ack)
+{
+ /* set_addr flag is encoded into 1st bit of address */
+ return zynqmp_pm_invoke_fn(PM_REQUEST_WAKEUP, node, address | set_addr,
+ address >> 32, ack, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_request_wakeup);
+
+/**
* zynqmp_pm_set_requirement() - PM call to set requirement for PM slaves
* @node: Node ID of the slave
* @capabilities: Requested capabilities of the slave
@@ -64,6 +64,8 @@
enum pm_api_id {
PM_GET_API_VERSION = 1,
+ PM_FORCE_POWERDOWN = 8,
+ PM_REQUEST_WAKEUP = 10,
PM_SYSTEM_SHUTDOWN = 12,
PM_REQUEST_NODE = 13,
PM_RELEASE_NODE,
@@ -376,6 +378,12 @@ int zynqmp_pm_write_pggs(u32 index, u32 value);
int zynqmp_pm_read_pggs(u32 index, u32 *value);
int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype);
int zynqmp_pm_set_boot_health_status(u32 value);
+int zynqmp_pm_force_powerdown(const u32 target,
+ const enum zynqmp_pm_request_ack ack);
+int zynqmp_pm_request_wakeup(const u32 node,
+ const bool set_addr,
+ const u64 address,
+ const enum zynqmp_pm_request_ack ack);
#else
static inline struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void)
{
@@ -526,6 +534,20 @@ static inline int zynqmp_pm_set_boot_health_status(u32 value)
{
return -ENODEV;
}
+
+static inline int zynqmp_pm_force_powerdown(const u32 target,
+ const enum zynqmp_pm_request_ack ack)
+{
+ return -ENODEV;
+}
+
+static inline int zynqmp_pm_request_wakeup(const u32 node,
+ const bool set_addr,
+ const u64 address,
+ const enum zynqmp_pm_request_ack ack)
+{
+ return -ENODEV;
+}
#endif
#endif /* __FIRMWARE_ZYNQMP_H__ */
Add shutdown/wakeup a resource eemi operations to shutdown or bringup a resource. Signed-off-by: Ben Levinsky <ben.levinsky@xilinx.com> --- changes since v2: - add xilinx-related platform mgmt fn's instead of wrapping around function pointer in xilinx eemi ops struct changes since v3: - fix formatting --- drivers/firmware/xilinx/zynqmp.c | 35 +++++++++++++++++++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 22 ++++++++++++++++++++++ 2 files changed, 57 insertions(+)