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From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
To: Mark Brown <broonie@kernel.org>
Cc: Linux-ALSA <alsa-devel@alsa-project.org>,
	Simon <horms@verge.net.au>, shiiba <naoya.shiiba.nx@renesas.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Das Biju <biju.das@bp.renesas.com>
Subject: [PATCH 06/12 v2] ASoC: rsnd: no more SSI restart when unusual situation
Date: Mon, 16 Mar 2015 04:46:10 +0000	[thread overview]
Message-ID: <8761a1k0sk.wl%kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <87egopk13d.wl%kuninori.morimoto.gx@renesas.com>

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

It will be SSI interrupt endless loop f unusual situation happen.
This patch adds restart limit for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
v1 -> v2

 - no change

 sound/soc/sh/rcar/ssi.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index fea4aa5..060d3d2 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -416,11 +416,14 @@ static irqreturn_t rsnd_ssi_interrupt(int irq, void *data)
 		/*
 		 * restart SSI
 		 */
-		rsnd_ssi_stop(mod, priv);
-		rsnd_ssi_start(mod, priv);
-
 		dev_dbg(dev, "%s[%d] restart\n",
 			rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+		rsnd_ssi_stop(mod, priv);
+		if (ssi->err < 1024)
+			rsnd_ssi_start(mod, priv);
+		else
+			dev_warn(dev, "no more SSI restart\n");
 	}
 
 	rsnd_ssi_record_error(ssi, status);
-- 
1.9.1

  parent reply	other threads:[~2015-03-16  4:46 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-16  4:39 [PATCH 0/12 v2] ASoC: Renesas adds DPCM based sampling rate convert Kuninori Morimoto
2015-03-16  4:44 ` [PATCH 01/12 v2] ASoC: core: remove of_xlate_dai_name from snd_soc_component_driver Kuninori Morimoto
2015-03-18  9:03   ` Lars-Peter Clausen
2015-03-18 23:59     ` Kuninori Morimoto
2015-03-16  4:45 ` [PATCH 02/12 v2] ASoC: core: add snd_soc_get_dai_info() to get driver infomation Kuninori Morimoto
2015-03-16  4:45 ` [PATCH 03/12 v2] ASoC: rsnd-dpcm-card: add Renesas sound card support for DPCM Kuninori Morimoto
2015-03-18  9:05   ` Lars-Peter Clausen
2015-03-19  0:08     ` Kuninori Morimoto
2015-03-16  4:45 ` [PATCH 04/12 v2] ASoC: rsnd-dpcm-card: add .be_hw_params_fixup support for convert rate Kuninori Morimoto
2015-03-16  4:45 ` [PATCH 05/12 v2] ASoC: ak4642: tidyup DAPM route for playback Kuninori Morimoto
2015-03-17 12:22   ` Mark Brown
2015-03-16  4:46 ` Kuninori Morimoto [this message]
2015-03-16  4:46 ` [PATCH 07/12 v2] ASoC: rsnd: no more SRC restart when unusual situation Kuninori Morimoto
2015-03-16  4:46 ` [PATCH 08/12 v2] ASoC: rsnd: tidyup error message format Kuninori Morimoto
2015-03-16  4:46 ` [PATCH 09/12 v2] ASoC: rsnd: show debug info for sampling rate convert Kuninori Morimoto
2015-03-16  4:47 ` [PATCH 10/12 v2] ASoC: rsnd: don't call clk_prepare_enable/unprepare() from inside spin lock Kuninori Morimoto
2015-03-16  4:47 ` [PATCH 11/12 v2] ASoC: rsnd: add dai_link stream name Kuninori Morimoto
2015-03-16  4:47 ` [PATCH 12/12 v2] ASoC: rsnd: add DPCM based sampling rate convert Kuninori Morimoto

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