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From:   zhong jiang <zhongjiang@huawei.com>
To:     <mchehab@kernel.org>
CC:     <hansverk@cisco.com>, <daniel.vetter@ffwll.ch>,
        <zhongjiang@huawei.com>, <linux-media@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
Subject: [PATCH 4/4] media: v4l2-dv-timings: Use DIV_ROUND_CLOSEST directly to make it readable
Date:   Fri, 6 Sep 2019 00:14:52 +0800
Message-ID: <1567700092-27769-5-git-send-email-zhongjiang@huawei.com>
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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@huawei.com>
---
 drivers/media/v4l2-core/v4l2-dv-timings.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c
index 4f23e93..2b399c0 100644
--- a/drivers/media/v4l2-core/v4l2-dv-timings.c
+++ b/drivers/media/v4l2-core/v4l2-dv-timings.c
@@ -757,7 +757,7 @@ bool v4l2_detect_gtf(unsigned frame_height,
 	pix_clk = pix_clk / GTF_PXL_CLK_GRAN * GTF_PXL_CLK_GRAN;
 
 	hsync = (frame_width * 8 + 50) / 100;
-	hsync = ((hsync + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN) * GTF_CELL_GRAN;
+	hsync = DIV_ROUND_CLOSEST(hsync, GTF_CELL_GRAN) * GTF_CELL_GRAN;
 
 	h_fp = h_blank / 2 - hsync;
 
-- 
1.7.12.4