Add shutdown/wakeup a resource eemi operations to shutdown
or bringup a resource.

Signed-off-by: Ben Levinsky <ben.levin...@xilinx.com>
---
v3:
- add xilinx-related platform mgmt fn's instead of wrapping around
  function pointer in xilinx eemi ops struct
- fix formatting
v4:
- add default values for enums

---
 drivers/firmware/xilinx/zynqmp.c     | 35 +++++++++++++++++++++++++++++++++++
 include/linux/firmware/xlnx-zynqmp.h | 22 ++++++++++++++++++++++
 2 files changed, 57 insertions(+)

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index bfaf29a..16a8d69 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -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
diff --git a/include/linux/firmware/xlnx-zynqmp.h 
b/include/linux/firmware/xlnx-zynqmp.h
index bb347df..4d83a7d 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -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__ */
-- 
2.7.4

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