fs: shell: Fix FS shell using fixed storage_partition name instead of DT

Fix FS shell using fixed 'storage_partition' nodelabel instead of
accessing the DT defined partition from the zephyr,fstab,littlefs
node partition property.

Signed-off-by: Joakim Andersson <[email protected]>

Author: joerchan

subsys/fs/shell.c

@@ -17,9 +17,6 @@
 #include <inttypes.h>
 #include <limits.h>
 
-#define STORAGE_PARTITION    storage_partition
-#define STORAGE_PARTITION_ID FIXED_PARTITION_ID(STORAGE_PARTITION)
-
 #ifdef CONFIG_FILE_SYSTEM_SHELL_MOUNT_COMMAND
 /* FAT */
 #ifdef CONFIG_FAT_FILESYSTEM_ELM
@@ -65,6 +62,15 @@ static struct fs_mount_t littlefs_mnt = {
 #else
 #include <zephyr/storage/flash_map.h>
 
+#define STORAGE_PARTIION_NODE_ID DT_PHANDLE(DT_INST(0, zephyr_fstab_littlefs), partition)
+
+#if DT_FIXED_PARTITION_EXISTS(STORAGE_PARTIION_NODE_ID)
+#define STORAGE_PARTITION_ID DT_FIXED_PARTITION_ID(STORAGE_PARTIION_NODE_ID)
+#else
+#define STORAGE_PARTITION    storage_partition
+#define STORAGE_PARTITION_ID FIXED_PARTITION_ID(STORAGE_PARTITION)
+#endif
+
 FS_LITTLEFS_DECLARE_DEFAULT_CONFIG(lfs_data);
 static struct fs_mount_t littlefs_mnt = {
 	.type = FS_LITTLEFS,