Commit 0443de7e authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

ASoC: cs4349: Set .writeable_reg for cs4349_regmap 



The first valid register index is 1 rather than 0, and the CS4349_CHIPID
is readonly. So set .writeable_reg to avoid writing to these registers.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent da304ac3

sound/soc/codecs/cs4349.c

+12 −8
Original line number Diff line number Diff line
@@ -54,14 +54,17 @@ struct cs4349_private { 
static bool cs4349_readable_register(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case CS4349_CHIPID:

	case CS4349_MODE:

	case CS4349_VMI:

	case CS4349_MUTE:

	case CS4349_VOLA:

	case CS4349_VOLB:

	case CS4349_RMPFLT:

	case CS4349_MISC:

	case CS4349_CHIPID ... CS4349_MISC:

		return true;

	default:

		return false;

	}

}



static bool cs4349_writeable_register(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case CS4349_MODE ...  CS4349_MISC:

		return true;

	default:

		return false;
@@ -270,6 +273,7 @@ static const struct regmap_config cs4349_regmap = { 
	.reg_defaults		= cs4349_reg_defaults,

	.num_reg_defaults	= ARRAY_SIZE(cs4349_reg_defaults),

	.readable_reg		= cs4349_readable_register,

	.writeable_reg		= cs4349_writeable_register,

	.cache_type		= REGCACHE_RBTREE,

};