diff mbox series

Mark the ADAU7118 reset register as volatile.

Message ID 1588365034-59198-1-git-send-email-cdgarren@indesign-llc.com
State New
Headers show
Series Mark the ADAU7118 reset register as volatile. | expand

Commit Message

chris.d.garren@gmail.com May 1, 2020, 8:30 p.m. UTC 
From: Chris Garren <cdgarren@indesign-llc.com>

Without this the previously written value was written to this reg,
which caused the different configuration registers to be reset.
---
 sound/soc/codecs/adau7118-i2c.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/codecs/adau7118-i2c.c b/sound/soc/codecs/adau7118-i2c.c
index a821136..aa7afb3 100644
--- a/sound/soc/codecs/adau7118-i2c.c
+++ b/sound/soc/codecs/adau7118-i2c.c
@@ -32,6 +32,12 @@  static const struct reg_default adau7118_reg_defaults[] = {
 	{ ADAU7118_REG_RESET, 0x00 },
 };
 
+static bool adau7118_volatile(struct device *dev, unsigned int reg)
+{
+	return (reg == ADAU7118_REG_RESET);
+}
+
+
 static const struct regmap_config adau7118_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
@@ -39,6 +45,7 @@  static const struct regmap_config adau7118_regmap_config = {
 	.num_reg_defaults = ARRAY_SIZE(adau7118_reg_defaults),
 	.cache_type = REGCACHE_RBTREE,
 	.max_register = ADAU7118_REG_RESET,
+	.volatile_reg = adau7118_volatile,
 };
 
 static int adau7118_probe_i2c(struct i2c_client *i2c,