fs: littlefs: define default disk version in Kconfig

This makes it possible to set the disk version when Devicetree is not used for configuration. Signed-off-by: Xudong Zheng <[email protected]>
zephyrproject-rtos · Jan 18, 2025 · 6c91685 · 6c91685
1 parent 327a389
commit 6c91685
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/subsys/fs/Kconfig.littlefs b/subsys/fs/Kconfig.littlefs
@@ -125,4 +125,11 @@ config FS_LITTLEFS_MULTIVERSION
 	  to maintain backward compatibility with existing littlefs
 	  with the same major disk version.
 
+config FS_LITTLEFS_DISK_VERSION
+	hex "Default littlefs disk version"
+	default 0
+	depends on FS_LITTLEFS_MULTIVERSION
+	help
+	  Set to 0 to use the latest littlefs disk version (LFS_DISK_VERSION).
+
 endif # FILE_SYSTEM_LITTLEFS
diff --git a/subsys/fs/littlefs_fs.c b/subsys/fs/littlefs_fs.c
@@ -793,7 +793,10 @@ static int littlefs_init_cfg(struct fs_littlefs *fs, int flags)
 	uint32_t disk_version = lcp->disk_version;
 
 	if (disk_version == 0) {
-		disk_version = LFS_DISK_VERSION;
+		disk_version = CONFIG_FS_LITTLEFS_DISK_VERSION;
+		if (disk_version == 0) {
+			disk_version = LFS_DISK_VERSION;
+		}
 	}
 #endif /* CONFIG_FS_LITTLEFS_MULTIVERSION */