[PATCH v2 1/2] lib: utils/fdt_cppc_rpmi: Fix compile error with LLVM

[Anup Patel <apatel@ventanamicro.com>]

The following error is observed when compiling fdt_cppc_rpmi
driver using LLVM:

lib/utils/cppc/fdt_cppc_rpmi.c:87:3: error: label followed by a declaration is a C23 extension [-Werror,-Wc23-extensions]
   87 |                 u64 db_val_u64 = 0;

To fix the above issue, move the variable declaration at the
start of function.

Fixes: 591a98bdd549 ("lib: utils/cppc: Add RPMI CPPC driver")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
 lib/utils/cppc/fdt_cppc_rpmi.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/utils/cppc/fdt_cppc_rpmi.c b/lib/utils/cppc/fdt_cppc_rpmi.c
index 26e2d4f6..b6789901 100644
--- a/lib/utils/cppc/fdt_cppc_rpmi.c
+++ b/lib/utils/cppc/fdt_cppc_rpmi.c
@@ -59,6 +59,11 @@ static void rpmi_cppc_fc_db_trigger(struct rpmi_cppc *cppc)
 	u8 db_val_u8 = 0;
 	u16 db_val_u16 = 0;
 	u32 db_val_u32 = 0;
+#if __riscv_xlen != 32
+	u64 db_val_u64 = 0;
+#else
+	u32 db_val_u32_hi = 0;
+#endif
 
 	switch (cppc->fc_db_width) {
 	case RPMI_CPPC_FAST_CHANNEL_DB_WIDTH_8:
@@ -84,14 +89,12 @@ static void rpmi_cppc_fc_db_trigger(struct rpmi_cppc *cppc)
 		break;
 	case RPMI_CPPC_FAST_CHANNEL_DB_WIDTH_64:
 #if __riscv_xlen != 32
-		u64 db_val_u64 = 0;
 		db_val_u64 = readq((void *)cppc->fc_db_addr);
 		db_val_u64 = cppc->fc_db_setmask |
 				(db_val_u64 & cppc->fc_db_preservemask);
 
 		writeq(db_val_u64, (void *)cppc->fc_db_addr);
 #else
-		u32 db_val_u32_hi = 0;
 		db_val_u32 = readl((void *)cppc->fc_db_addr);
 		db_val_u32_hi = readl((void *)(cppc->fc_db_addr + 4));
 
-- 
2.43.0