From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Mike Arthur <linux@wolfsonmicro.com>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Liam Girdwood <lrg@ti.com>,
alsa-devel@alsa-project.org
Subject: [PATCH 1/4 v2] ASoC: wm8711: Use snd_soc_update_bits for read-modify-write
Date: Tue, 04 Oct 2011 11:15:30 +0800 [thread overview]
Message-ID: <1317698130.2688.8.camel@phoenix> (raw)
Use snd_soc_update_bits for read-modify-write register access instead of
open-coding it using snd_soc_read and snd_soc_write
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
v2: also remove unused variable 'reg'.
sound/soc/codecs/wm8711.c | 8 +++-----
1 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c
index 8457d3c..47c7fd5 100644
--- a/sound/soc/codecs/wm8711.c
+++ b/sound/soc/codecs/wm8711.c
@@ -364,7 +364,7 @@ static int wm8711_resume(struct snd_soc_codec *codec)
static int wm8711_probe(struct snd_soc_codec *codec)
{
struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec);
- int ret, reg;
+ int ret;
ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8711->bus_type);
if (ret < 0) {
@@ -381,10 +381,8 @@ static int wm8711_probe(struct snd_soc_codec *codec)
wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Latch the update bits */
- reg = snd_soc_read(codec, WM8711_LOUT1V);
- snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100);
- reg = snd_soc_read(codec, WM8711_ROUT1V);
- snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100);
+ snd_soc_update_bits(codec, WM8711_LOUT1V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8711_ROUT1V, 0x0100, 0x0100);
snd_soc_add_controls(codec, wm8711_snd_controls,
ARRAY_SIZE(wm8711_snd_controls));
--
1.7.4.1
next reply other threads:[~2011-10-04 3:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-04 3:15 Axel Lin [this message]
2011-10-04 3:17 ` [PATCH 2/4 v2] ASoC: wm8750: Use snd_soc_update_bits for read-modify-write Axel Lin
2011-10-04 3:18 ` [PATCH 4/4 v2] ASoC: wm8988: " Axel Lin
2011-10-04 15:05 ` [PATCH 1/4 v2] ASoC: wm8711: " Mark Brown
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