Commit 681a1956 authored Dec 08, 2014 by Peter Rosin Committed by Mark Brown Dec 08, 2014

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

parent b2776bf7

sound/soc/codecs/pcm512x-i2c.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -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);

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