Re: [PATCH 3/6] firmware: xilinx: export the feature check of zynqmp firmware

From: Rajan Vaja <redacted>

Export the zynqmp_pm_feature(), so it can be use by other as to get API
version available in firmware.

Signed-off-by: Rajan Vaja <redacted>
Signed-off-by: Abhyuday Godhasara <redacted>
---
 drivers/firmware/xilinx/zynqmp.c     | 3 ++-
 include/linux/firmware/xlnx-zynqmp.h | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 33f190e..ce16a72 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c

@@ -153,7 +153,7 @@ static noinline int do_fw_call_hvc(u64 arg0, u64 arg1, u64 arg2,
  *
  * Return: Returns status, either success or error+reason
  */
-static int zynqmp_pm_feature(u32 api_id)
+int zynqmp_pm_feature(const u32 api_id)
 {
 	int ret;
 	u32 ret_payload[PAYLOAD_ARG_CNT];

@@ -190,6 +190,7 @@ static int zynqmp_pm_feature(u32 api_id)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(zynqmp_pm_feature);
 
 /**
  * zynqmp_pm_invoke_fn() - Invoke the system-level platform management layer

diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index c715756..06ea5a4 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h

@@ -427,6 +427,7 @@ int zynqmp_pm_pinctrl_set_config(const u32 pin, const u32 param,
 				 u32 value);
 int zynqmp_pm_register_notifier(const u32 node, const u32 event,
 				const u32 wake, const u32 enable);
+int zynqmp_pm_feature(const u32 api_id);
 #else
 static inline int zynqmp_pm_get_api_version(u32 *version)
 {

@@ -644,6 +645,11 @@ static inline int zynqmp_pm_register_notifier(const u32 node, const u32 event,
 {
 	return -ENODEV;
 }
+
+static inline int zynqmp_pm_feature(const u32 api_id)
+{
+	return -ENODEV;
+}
 #endif
 
 #endif /* __FIRMWARE_ZYNQMP_H__ */