linux-kernel - [PATCH 12/14] ASoC: omap-mcpdm: Move the WD enable write inside omap_mcpdm_open

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Date:	Wed, 18 May 2016 16:46:34 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	<mturquette@...libre.com>, <sboyd@...eaurora.org>,
	<tony@...mide.com>, <lee.jones@...aro.org>, <robh+dt@...nel.org>,
	<lgirdwood@...il.com>, <broonie@...nel.org>
CC:	<t-kristo@...com>, <linux-kernel@...r.kernel.org>,
	<linux-clk@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<alsa-devel@...a-project.org>
Subject: [PATCH 12/14] ASoC: omap-mcpdm: Move the WD enable write inside omap_mcpdm_open_streams()

The DS4_WD_EN bit is only touched before calling omap_mcpdm_open_streams().
Move it inside of that function for simplicity.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
---
 sound/soc/omap/omap-mcpdm.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
index b837265ac3e9..11bd07cdce22 100644
--- a/sound/soc/omap/omap-mcpdm.c
+++ b/sound/soc/omap/omap-mcpdm.c
@@ -173,6 +173,10 @@ static inline int omap_mcpdm_active(struct omap_mcpdm *mcpdm)
  */
 static void omap_mcpdm_open_streams(struct omap_mcpdm *mcpdm)
 {
+	u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL);
+
+	omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl | MCPDM_WD_EN);
+
 	omap_mcpdm_write(mcpdm, MCPDM_REG_IRQENABLE_SET,
 			MCPDM_DN_IRQ_EMPTY | MCPDM_DN_IRQ_FULL |
 			MCPDM_UP_IRQ_EMPTY | MCPDM_UP_IRQ_FULL);
@@ -258,12 +262,9 @@ static int omap_mcpdm_dai_startup(struct snd_pcm_substream *substream,
 
 	mutex_lock(&mcpdm->mutex);
 
-	if (!dai->active) {
-		u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL);
-
-		omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl | MCPDM_WD_EN);
+	if (!dai->active)
 		omap_mcpdm_open_streams(mcpdm);
-	}
+
 	mutex_unlock(&mcpdm->mutex);
 
 	return 0;
-- 
2.8.2