From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 16 Apr 2018 00:38:13 +0000 (+0000)
Subject: ASoC: rsnd: ssi: wait maximum 5ms for status check
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3fd391fb7c97ab6dfb9e44926a265566d1d1ab79;p=linux.git

ASoC: rsnd: ssi: wait maximum 5ms for status check

It is waiting udelay(50) x 1024 (= 50ms) for status check
in worst case, but it is overkill.
And we shouldn't use udelay() for 50us
(linux/Documentation/timers/timers-howto.txt)

Waiting maximum udelay(5) x 1024 (= 5ms) is very enough
for status check.
This patch fixes these issue.

Reported-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 31ffe3f0e1632..9538f76f8e206 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -171,7 +171,7 @@ static void rsnd_ssi_status_check(struct rsnd_mod *mod,
 		if (status & bit)
 			return;
 
-		udelay(50);
+		udelay(5);
 	}
 
 	dev_warn(dev, "%s[%d] status check failed\n",