linux-kernel - [PATCH 2/4] media: tuners/qm1d1c0042: Use DIV_ROUND

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Message-ID: <1567700092-27769-3-git-send-email-zhongjiang@huawei.com>
Date:   Fri, 6 Sep 2019 00:14:50 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <mchehab@...nel.org>
CC:     <hansverk@...co.com>, <daniel.vetter@...ll.ch>,
        <zhongjiang@...wei.com>, <linux-media@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/4] media: tuners/qm1d1c0042: Use DIV_ROUND_CLOSEST directly to make it readable

The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 drivers/media/tuners/qm1d1c0042.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/tuners/qm1d1c0042.c b/drivers/media/tuners/qm1d1c0042.c
index 83ca5dc..0e26d22 100644
--- a/drivers/media/tuners/qm1d1c0042.c
+++ b/drivers/media/tuners/qm1d1c0042.c
@@ -206,7 +206,7 @@ static int qm1d1c0042_set_params(struct dvb_frontend *fe)
 	if (ret < 0)
 		return ret;
 
-	a = (freq + state->cfg.xtal_freq / 2) / state->cfg.xtal_freq;
+	a = DIV_ROUND_CLOSEST(freq, state->cfg.xtal_freq);
 
 	state->regs[0x06] &= 0x40;
 	state->regs[0x06] |= (a - 12) / 4;
-- 
1.7.12.4