[alsa-devel] [PATCH 5/5] ASoC: rsnd: Don't check SSISR::DIRQ when Capture

[Kuninori Morimoto]

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

When stop case, it was Playback, it need to check all data were
completely sent. But in Capture case, it might not receive data
anymore. SSISR::DIRQ check is not need for Capture case.

Reported-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx at renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 sound/soc/sh/rcar/ssi.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 4ed8871..47f78a5 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -598,15 +598,18 @@ static int rsnd_ssi_stop(struct rsnd_mod *mod,
 	if (rsnd_ssi_is_parent(mod, io))
 		return 0;
 
-	/*
-	 * disable all IRQ,
-	 * and, wait all data was sent
-	 */
 	cr  =	ssi->cr_own	|
 		ssi->cr_clk;
 
-	rsnd_mod_write(mod, SSICR, cr | EN);
-	rsnd_ssi_status_check(mod, DIRQ);
+	/*
+	 * disable all IRQ,
+	 * Playback: Wait all data was sent
+	 * Capture:  It might not receave data. Do nothing
+	 */
+	if (rsnd_io_is_play(io)) {
+		rsnd_mod_write(mod, SSICR, cr | EN);
+		rsnd_ssi_status_check(mod, DIRQ);
+	}
 
 	/*
 	 * disable SSI,
-- 
1.9.1