From 93ca33c99f22a0a096f83f19c9f887aeb67507a1 Mon Sep 17 00:00:00 2001
From: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Date: Mon, 25 Jul 2016 01:52:43 +0000
Subject: [PATCH] ASoC: rsnd: Fixup SRCm_IFSVR calculate method
This patch fixes the calculation accuracy degradation of SRCm_IFSVR
register value.
Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
sound/soc/sh/rcar/src.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index e39f916d0f2fa..969a5169de255 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -226,8 +226,12 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
ifscr = 0;
fsrate = 0;
if (fin != fout) {
+ u64 n;
+
ifscr = 1;
- fsrate = 0x0400000 / fout * fin;
+ n = (u64)0x0400000 * fin;
+ do_div(n, fout);
+ fsrate = n;
}
/*