firmware: xilinx: export the feature check of zynqmp firmware

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

Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Link: https://lore.kernel.org/r/20211026042525.26612-4-abhyuday.godhasara@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 30edcd2337868e5e27cb25b88bed163aac14351c..c2828ee6d4cf50176aa83f9ed615a1b101ccc0f8 100644 (file)
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -160,7 +160,7 @@ 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];
@@ -197,6 +197,7 @@ 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 b0a38091db7104637c6b8059c76443f6772af6e7..077e894bb3401d998f5ef6fb9741b9ef58b93266 100644 (file)
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -444,6 +444,7 @@ int zynqmp_pm_pinctrl_set_config(const u32 pin, const u32 param,
 int zynqmp_pm_load_pdi(const u32 src, const u64 address);
 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)
 {
@@ -681,6 +682,11 @@ 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__ */