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Date: Thu, 14 Apr 2016 11:10:28 +0800 From: zengzhaoxiu@....com To: linux-kernel@...r.kernel.org Cc: Zhaoxiu Zeng <zhaoxiu.zeng@...il.com>, Dmitry Torokhov <dmitry.torokhov@...il.com>, linux-input@...r.kernel.org Subject: [PATCH V3 17/29] input: use parity16 in ams_delta_serio From: Zhaoxiu Zeng <zhaoxiu.zeng@...il.com> Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@...il.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); -- 2.5.0
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