Update hisilicon drivers to not rely on undefined overflow behaviour
This consists of ensuring that the left operand of each shift is
unsigned when the operation might overflow into the sign bit.
Change-Id: I67984b6c48c08af61e95a4dbd18047e2c3151f9a
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>
diff --git a/plat/hisilicon/hikey960/include/hi3660_hkadc.h b/plat/hisilicon/hikey960/include/hi3660_hkadc.h
index 4d2de4a..dc9e813 100644
--- a/plat/hisilicon/hikey960/include/hi3660_hkadc.h
+++ b/plat/hisilicon/hikey960/include/hi3660_hkadc.h
@@ -13,7 +13,7 @@
#define HKADC_DSP_START_CLR_REG (HKADC_SSI_REG_BASE + 0x01C)
#define HKADC_WR01_DATA_REG (HKADC_SSI_REG_BASE + 0x020)
-#define WR1_WRITE_MODE (1 << 31)
+#define WR1_WRITE_MODE (1U << 31)
#define WR1_READ_MODE (0 << 31)
#define WR1_ADDR(x) (((x) & 0x7F) << 24)
#define WR1_DATA(x) (((x) & 0xFF) << 16)
@@ -47,7 +47,7 @@
#define HKADC_WR01_VALUE ((HKADC_START_ADDR << 24) | \
(0x1 << 16))
-#define HKADC_WR23_VALUE ((0x1 << 31) | \
+#define HKADC_WR23_VALUE ((0x1u << 31) | \
(HKADC_DATA0_ADDR << 24) | \
(1 << 15) | \
(HKADC_DATA1_ADDR << 8))