[U-Boot] [PATCH 01/20] stm32mp1: Fix warnings when compiling with W=1

[Patrick Delaunay]

This patch solves the following warnings:

arch/arm/mach-stm32mp/cpu.c:378:16: warning: comparison between signed
and unsigned integer expressions [-Wsign-compare]
   if (instance > ARRAY_SIZE(serial_addr))
                ^

Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

 arch/arm/mach-stm32mp/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c
index e1a0a13..1fce78e 100644
--- a/arch/arm/mach-stm32mp/cpu.c
+++ b/arch/arm/mach-stm32mp/cpu.c
@@ -366,7 +366,7 @@ static void setup_boot_mode(void)
 	u32 boot_ctx = readl(TAMP_BOOT_CONTEXT);
 	u32 boot_mode =
 		(boot_ctx & TAMP_BOOT_MODE_MASK) >> TAMP_BOOT_MODE_SHIFT;
-	int instance = (boot_mode & TAMP_BOOT_INSTANCE_MASK) - 1;
+	unsigned int instance = (boot_mode & TAMP_BOOT_INSTANCE_MASK) - 1;
 	u32 forced_mode = (boot_ctx & TAMP_BOOT_FORCED_MASK);
 	struct udevice *dev;
 	int alias;
-- 
2.7.4