diff options
| author | Peter Rosin | 2014-12-08 16:33:11 +0100 |
|---|---|---|
| committer | Mark Brown | 2014-12-08 20:45:36 +0000 |
| commit | 681a19560378213a193c424881b2180a783b81ae (patch) | |
| tree | 67576dd632d51a0da565e8a7714356c2b93e9fdf /sound | |
| parent | b2776bf7149bddd1f4161f14f79520f17fc1d71d (diff) | |
ASoC: pcm512x: Trigger auto-increment of register addresses on i2c
When the codec is connected using i2c, it will only auto-increment
register addresses if msb (0x80) of the register address byte is set.
[Fixes cache sync if multiple adjacent registers are updated -- broonie]
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/pcm512x-i2c.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/soc/codecs/pcm512x-i2c.c b/sound/soc/codecs/pcm512x-i2c.c index 4d62230bd378..d0547fa275fc 100644 --- a/sound/soc/codecs/pcm512x-i2c.c +++ b/sound/soc/codecs/pcm512x-i2c.c @@ -24,8 +24,13 @@ static int pcm512x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct regmap *regmap; + struct regmap_config config = pcm512x_regmap; - regmap = devm_regmap_init_i2c(i2c, &pcm512x_regmap); + /* msb needs to be set to enable auto-increment of addresses */ + config.read_flag_mask = 0x80; + config.write_flag_mask = 0x80; + + regmap = devm_regmap_init_i2c(i2c, &config); if (IS_ERR(regmap)) return PTR_ERR(regmap); |