diff mbox series

input:touchscreen/lpc32xx_ts:cleanup cppcheck shifting warning

Message ID 20210316153150.1207-1-jzp0409@163.com (mailing list archive)
State Accepted
Commit 4895bfe91199e19fd6bc9b43307cf4adb0409746
Headers show
Series input:touchscreen/lpc32xx_ts:cleanup cppcheck shifting warning | expand

Commit Message

jzp0409 March 16, 2021, 3:31 p.m. UTC 
From: "edison.jiang" <jiangzhipeng@yulong.com>

There is error from cppcheck tool.
 "Shifting signed 32-bit value by 31 bits is undefined behaviour errors"

Signed-off-by: edison.jiang <jiangzhipeng@yulong.com>
---
 drivers/input/touchscreen/lpc32xx_ts.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c
index b51450b..82f2ffd 100644
--- a/drivers/input/touchscreen/lpc32xx_ts.c
+++ b/drivers/input/touchscreen/lpc32xx_ts.c
@@ -34,18 +34,18 @@ 
 #define LPC32XX_TSC_AUX_MIN			0x38
 #define LPC32XX_TSC_AUX_MAX			0x3C
 
-#define LPC32XX_TSC_STAT_FIFO_OVRRN		(1 << 8)
-#define LPC32XX_TSC_STAT_FIFO_EMPTY		(1 << 7)
+#define LPC32XX_TSC_STAT_FIFO_OVRRN		BIT(8)
+#define LPC32XX_TSC_STAT_FIFO_EMPTY		BIT(7)
 
 #define LPC32XX_TSC_SEL_DEFVAL			0x0284
 
 #define LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4	(0x1 << 11)
 #define LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(s)	((10 - (s)) << 7)
 #define LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(s)	((10 - (s)) << 4)
-#define LPC32XX_TSC_ADCCON_POWER_UP		(1 << 2)
+#define LPC32XX_TSC_ADCCON_POWER_UP		BIT(2)
 #define LPC32XX_TSC_ADCCON_AUTO_EN		(1 << 0)
 
-#define LPC32XX_TSC_FIFO_TS_P_LEVEL		(1 << 31)
+#define LPC32XX_TSC_FIFO_TS_P_LEVEL		BIT(31)
 #define LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(x)	(((x) & 0x03FF0000) >> 16)
 #define LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(y)	((y) & 0x000003FF)