firmware: xilinx: Add APIs to control node status/power

Add Xilinx ZynqMP firmware APIs to control node status
and power. These APIs allows turning on/off power domain
and setting capabilities of devices present in power domain.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index 56b2108a2148..642dab10f65d 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -40,8 +40,19 @@
 /* Payload size (consists of callback API ID + arguments) */
 #define CB_PAYLOAD_SIZE (CB_ARG_CNT + 1)
 
+#define ZYNQMP_PM_MAX_QOS               100U
+
+/* Node capabilities */
+#define ZYNQMP_PM_CAPABILITY_ACCESS     0x1U
+#define ZYNQMP_PM_CAPABILITY_CONTEXT    0x2U
+#define ZYNQMP_PM_CAPABILITY_WAKEUP     0x4U
+#define ZYNQMP_PM_CAPABILITY_POWER      0x8U
+
 enum pm_api_id {
         PM_GET_API_VERSION = 1,
+        PM_REQUEST_NODE = 13,
+        PM_RELEASE_NODE,
+        PM_SET_REQUIREMENT,
         PM_RESET_ASSERT = 17,
         PM_RESET_GET_STATUS,
         PM_PM_INIT_FINALIZE = 21,
@@ -224,6 +235,12 @@ enum zynqmp_pm_suspend_reason {
         SUSPEND_SYSTEM_SHUTDOWN,
 };
 
+enum zynqmp_pm_request_ack {
+        ZYNQMP_PM_REQUEST_ACK_NO = 1,
+        ZYNQMP_PM_REQUEST_ACK_BLOCKING,
+        ZYNQMP_PM_REQUEST_ACK_NON_BLOCKING,
+};
+
 /**
  * struct zynqmp_pm_query_data - PM query data
  * @qid:        query ID
@@ -257,6 +274,15 @@ struct zynqmp_eemi_ops {
         int (*reset_get_status)(const enum zynqmp_pm_reset reset, u32 *status);
         int (*init_finalize)(void);
         int (*set_suspend_mode)(u32 mode);
+        int (*request_node)(const u32 node,
+                            const u32 capabilities,
+                            const u32 qos,
+                            const enum zynqmp_pm_request_ack ack);
+        int (*release_node)(const u32 node);
+        int (*set_requirement)(const u32 node,
+                               const u32 capabilities,
+                               const u32 qos,
+                               const enum zynqmp_pm_request_ack ack);
 };
 
 int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1,