[PATCH v3 1/2] FWU: Add platform hook support for fwu metata

[Padmarao Begari]

FWU metadata information is unavailable for platform-specific
operations since FWU initialization has not yet occurred.
The initialization function is invoked as part of the main
loop event. To address this, the FWU platform hook function
is introduced during FWU initialization, allowing metadata
processing with platform-specific operations.

Signed-off-by: Padmarao Begari <padmarao.begari at amd.com>
---
 include/fwu.h         | 11 +++++++++++
 lib/fwu_updates/fwu.c | 18 ++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/include/fwu.h b/include/fwu.h
index 77e60167fc7..e7bd1d492af 100644
--- a/include/fwu.h
+++ b/include/fwu.h
@@ -128,6 +128,17 @@ int fwu_read_mdata(struct udevice *dev, struct fwu_mdata *mdata,
 int fwu_write_mdata(struct udevice *dev, struct fwu_mdata *mdata,
 		    bool primary, uint32_t size);
 
+/**
+ * fwu_platform_hook() - Platform specific processing with FWU metadata
+ * @dev: FWU metadata device
+ * @data: FWU metadata
+ *
+ * Provide a platform specific function for processing with the FWU metadata.
+ *
+ * Return: 0 if OK, -ve on error
+ */
+int fwu_platform_hook(struct udevice *dev, struct fwu_data *data);
+
 /**
  * fwu_get_mdata() - Read, verify and return the FWU metadata
  *
diff --git a/lib/fwu_updates/fwu.c b/lib/fwu_updates/fwu.c
index 7f085a0211f..0f5ef2ba515 100644
--- a/lib/fwu_updates/fwu.c
+++ b/lib/fwu_updates/fwu.c
@@ -655,6 +655,16 @@ __weak void fwu_plat_get_bootidx(uint *boot_idx)
 		*boot_idx = 0; /* Dummy value */
 }
 
+/**
+ * fwu_platform_hook() - Platform specific processing with FWU metadata
+ *
+ * Return: 0 if OK, -ve on error
+ */
+__weak int fwu_platform_hook(struct udevice *dev, struct fwu_data *data)
+{
+	return 0;
+}
+
 /**
  * fwu_update_checks_pass() - Check if FWU update can be done
  *
@@ -712,6 +722,7 @@ static int fwu_boottime_checks(void)
 {
 	int ret;
 	u32 boot_idx, active_idx;
+	struct fwu_data *data;
 
 	ret = uclass_first_device_err(UCLASS_FWU_MDATA, &g_dev);
 	if (ret) {
@@ -770,6 +781,13 @@ static int fwu_boottime_checks(void)
 	if (!ret)
 		boottime_check = 1;
 
+	data = fwu_get_data();
+	ret = fwu_platform_hook(g_dev, data);
+	if (ret) {
+		log_err("fwu_platform_hook() failed\n");
+		return ret;
+	}
+
 	return 0;
 }
 EVENT_SPY_SIMPLE(EVT_MAIN_LOOP, fwu_boottime_checks);
-- 
2.25.1