linux-kernel - [PATCH V2 1/2] firmware: xilinx: Export function to use in other module

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Date: Mon, 18 Dec 2023 21:50:24 -0800
From: Jay Buddhabhatti <jay.buddhabhatti@....com>
To: <michal.simek@....com>, <gregkh@...uxfoundation.org>,
	<sai.krishna.potthuri@....com>, <linus.walleij@...aro.org>,
	<nava.kishore.manne@....com>, <dhaval.r.shah@....com>, <robh@...nel.org>,
	<marex@...x.de>, <roman.gushchin@...ux.dev>, <arnd@...db.de>,
	<shubhrajyoti.datta@....com>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	Jay Buddhabhatti <jay.buddhabhatti@....com>
Subject: [PATCH V2 1/2] firmware: xilinx: Export function to use in other module

Export zynqmp_pm_get_family_info() to access and find family information
in other module.

Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@....com>
---
 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 b0d22d4455d9..313965f79dd7 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -414,7 +414,7 @@ EXPORT_SYMBOL_GPL(zynqmp_pm_get_chipid);
  *
  * Return: Returns status, either success or error+reason
  */
-static int zynqmp_pm_get_family_info(u32 *family, u32 *subfamily)
+int zynqmp_pm_get_family_info(u32 *family, u32 *subfamily)
 {
 	u32 ret_payload[PAYLOAD_ARG_CNT];
 	u32 idcode;
@@ -439,6 +439,7 @@ static int zynqmp_pm_get_family_info(u32 *family, u32 *subfamily)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(zynqmp_pm_get_family_info);
 
 /**
  * zynqmp_pm_get_trustzone_version() - Get secure trustzone firmware version
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index d1ea3898564c..2375ce9b38df 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -515,6 +515,7 @@ int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1,
 #if IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE)
 int zynqmp_pm_get_api_version(u32 *version);
 int zynqmp_pm_get_chipid(u32 *idcode, u32 *version);
+int zynqmp_pm_get_family_info(u32 *family, u32 *subfamily);
 int zynqmp_pm_query_data(struct zynqmp_pm_query_data qdata, u32 *out);
 int zynqmp_pm_clock_enable(u32 clock_id);
 int zynqmp_pm_clock_disable(u32 clock_id);
@@ -596,6 +597,11 @@ static inline int zynqmp_pm_get_chipid(u32 *idcode, u32 *version)
 	return -ENODEV;
 }
 
+static inline int zynqmp_pm_get_family_info(u32 *family, u32 *subfamily)
+{
+	return -ENODEV;
+}
+
 static inline int zynqmp_pm_query_data(struct zynqmp_pm_query_data qdata,
 				       u32 *out)
 {
-- 
2.17.1