ASoC: rsnd: ssi: wait maximum 5ms for status check
authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Mon, 16 Apr 2018 00:38:13 +0000 (00:38 +0000)
committerMark Brown <broonie@kernel.org>
Mon, 16 Apr 2018 11:38:11 +0000 (12:38 +0100)
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>
sound/soc/sh/rcar/ssi.c

index 31ffe3f..9538f76 100644 (file)
@@ -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",