diff options
Diffstat (limited to 'sound/soc/codecs/cs35l41-lib.c')
| -rw-r--r-- | sound/soc/codecs/cs35l41-lib.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs35l41-lib.c b/sound/soc/codecs/cs35l41-lib.c index cc5366c8bdd6..10b754481ca2 100644 --- a/sound/soc/codecs/cs35l41-lib.c +++ b/sound/soc/codecs/cs35l41-lib.c @@ -1321,6 +1321,25 @@ int cs35l41_write_fs_errata(struct device *dev, struct regmap *regmap) } EXPORT_SYMBOL_GPL(cs35l41_write_fs_errata); +int cs35l41_enter_hibernate(struct device *dev, struct regmap *regmap, + enum cs35l41_boost_type b_type) +{ + if (!cs35l41_safe_reset(regmap, b_type)) { + dev_dbg(dev, "System does not support Suspend\n"); + return -EINVAL; + } + + dev_dbg(dev, "Enter hibernate\n"); + regmap_write(regmap, CS35L41_WAKESRC_CTL, 0x0088); + regmap_write(regmap, CS35L41_WAKESRC_CTL, 0x0188); + + // Don't wait for ACK since bus activity would wake the device + regmap_write(regmap, CS35L41_DSP_VIRT1_MBOX_1, CSPL_MBOX_CMD_HIBERNATE); + + return 0; +} +EXPORT_SYMBOL_GPL(cs35l41_enter_hibernate); + static void cs35l41_wait_for_pwrmgt_sts(struct device *dev, struct regmap *regmap) { const int pwrmgt_retries = 10; |