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authorBard Liao <bardliao@realtek.com>2015-04-09 11:20:32 +0800
committerMark Brown <broonie@kernel.org>2015-04-09 11:31:22 +0100
commitd53d59ecad74f3e90c6eefedd2186abbadd64d7c (patch)
treec077ea3e27c0d85f072745d7ed9782d406dbe631 /sound/soc/codecs
parent143526ee94a295ed33b9cc19e9532ab6d14a1cc0 (diff)
downloadlinux-d53d59ecad74f3e90c6eefedd2186abbadd64d7c.tar.bz2
ASoC: rt286: Restore default in probe
RT286 can't do register reset. If the hardware power is still existing in power off, rt286 will keep the register settings. So, we need to restore the default register value in probe to make sure the cache value is the same as the real register value. Signed-off-by: Bard Liao <bardliao@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs')
-rw-r--r--sound/soc/codecs/rt286.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index 842cfb9fa191..87af81b9e971 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -1250,6 +1250,14 @@ static int rt286_i2c_probe(struct i2c_client *i2c,
rt286->i2c = i2c;
i2c_set_clientdata(i2c, rt286);
+ /* restore codec default */
+ for (i = 0; i < INDEX_CACHE_SIZE; i++)
+ regmap_write(rt286->regmap, rt286->index_cache[i].reg,
+ rt286->index_cache[i].def);
+ for (i = 0; i < ARRAY_SIZE(rt286_reg); i++)
+ regmap_write(rt286->regmap, rt286_reg[i].reg,
+ rt286_reg[i].def);
+
if (pdata)
rt286->pdata = *pdata;