[patch V4 17/31] input: use parity16 in ams_delta_serio

[zengzhaoxiu]

From: Zhaoxiu Zeng <zhaoxiu.z...@gmail.com>

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.z...@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torok...@gmail.com>
---
 drivers/input/serio/ams_delta_serio.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/input/serio/ams_delta_serio.c 
b/drivers/input/serio/ams_delta_serio.c
index 45887e3..85459b3 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -48,13 +48,9 @@ static int check_data(int data)
                                data);
                return SERIO_FRAME;
        }
-       /* calculate the parity */
-       for (i = 1; i < 10; i++) {
-               if (data & (1 << i))
-                       parity++;
-       }
        /* it should be odd */
-       if (!(parity & 0x01)) {
+       parity = parity16(data & 0x3fe);
+       if (!parity) {
                dev_warn(&ams_delta_serio->dev,
                                "paritiy check failed, data=0x%X parity=0x%X\n",
                                data, parity);
-- 
2.7.4