linux-kernel - [PATCH 3.9-stable] ASoC: wm8994: Fix reporting of accessory removal on

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Message-id: <001001ce5d98$a1557eb0$e4007c10$%choi@samsung.com>
Date:	Fri, 31 May 2013 09:48:56 +0900
From:	Jonghwan Choi <jhbird.choi@...sung.com>
To:	'Jonghwan Choi' <jhbird.choi@...sung.com>,
	linux-kernel@...r.kernel.org
Cc:	stable@...r.kernel.org,
	'Mark Brown' <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 3.9-stable]   ASoC: wm8994: Fix reporting of accessory removal
 on

This patch looks like it should be in the 3.9-stable tree, should we apply
it?

------------------

From: "Mark Brown <broonie@...nsource.wolfsonmicro.com>"

commit 9767a58b8b2a0b153c246fb6306c7d48d51bb379 upstream

During recent refactoring the code to report removal when MICDET reports
an absent microphone was removed, causing problems for systems which rely
solely on the MICDET for this functionality. Restore it.

Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 sound/soc/codecs/wm8994.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 8b769ba..f9dc7c0 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -3791,6 +3791,11 @@ static irqreturn_t wm8958_mic_irq(int irq, void
*data)
 			dev_dbg(codec->dev, "Ignoring removed jack\n");
 			return IRQ_HANDLED;
 		}
+	} else if (!(reg & WM8958_MICD_STS)) {
+		snd_soc_jack_report(wm8994->micdet[0].jack, 0,
+				    SND_JACK_MECHANICAL | SND_JACK_HEADSET |
+				    wm8994->btn_mask);
+		goto out;
 	}
 
 	if (wm8994->mic_detecting)
-- 
1.7.9.5

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