[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <1317698244.2688.10.camel@phoenix>
Date: Tue, 04 Oct 2011 11:17:24 +0800
From: Axel Lin <axel.lin@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>,
Liam Girdwood <lrg@...com>, alsa-devel@...a-project.org,
Richard Purdie <rpurdie@...ys.net>
Subject: [PATCH 2/4 v2] ASoC: wm8750: Use snd_soc_update_bits for
read-modify-write
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@...il.com>
---
v2: also remove unused variable 'reg'.
sound/soc/codecs/wm8750.c | 26 +++++++++-----------------
1 files changed, 9 insertions(+), 17 deletions(-)
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index 15f0372..862c520 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -694,7 +694,7 @@ static int wm8750_resume(struct snd_soc_codec *codec)
static int wm8750_probe(struct snd_soc_codec *codec)
{
struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
- int reg, ret;
+ int ret;
ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8750->control_type);
if (ret < 0) {
@@ -712,22 +712,14 @@ static int wm8750_probe(struct snd_soc_codec *codec)
wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* set the update bits */
- reg = snd_soc_read(codec, WM8750_LDAC);
- snd_soc_write(codec, WM8750_LDAC, reg | 0x0100);
- reg = snd_soc_read(codec, WM8750_RDAC);
- snd_soc_write(codec, WM8750_RDAC, reg | 0x0100);
- reg = snd_soc_read(codec, WM8750_LOUT1V);
- snd_soc_write(codec, WM8750_LOUT1V, reg | 0x0100);
- reg = snd_soc_read(codec, WM8750_ROUT1V);
- snd_soc_write(codec, WM8750_ROUT1V, reg | 0x0100);
- reg = snd_soc_read(codec, WM8750_LOUT2V);
- snd_soc_write(codec, WM8750_LOUT2V, reg | 0x0100);
- reg = snd_soc_read(codec, WM8750_ROUT2V);
- snd_soc_write(codec, WM8750_ROUT2V, reg | 0x0100);
- reg = snd_soc_read(codec, WM8750_LINVOL);
- snd_soc_write(codec, WM8750_LINVOL, reg | 0x0100);
- reg = snd_soc_read(codec, WM8750_RINVOL);
- snd_soc_write(codec, WM8750_RINVOL, reg | 0x0100);
+ snd_soc_update_bits(codec, WM8750_LDAC, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8750_RDAC, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8750_LOUT1V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8750_ROUT1V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8750_LOUT2V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8750_ROUT2V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8750_LINVOL, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8750_RINVOL, 0x0100, 0x0100);
snd_soc_add_controls(codec, wm8750_snd_controls,
ARRAY_SIZE(wm8750_snd_controls));
--
1.7.4.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists