ASoC: cs42l42: Mark OSC_SWITCH_STATUS register volatile

OSC_SWITCH_STATUS is a volatile register indicating the current state
of the clock switch logic.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211015133619.4698-15-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index d62272d..390cd7e 100644 (file)
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -52,7 +52,6 @@ static const struct reg_default cs42l42_reg_defaults[] = {
        { CS42L42_RSENSE_CTL1,                  0x40 },
        { CS42L42_RSENSE_CTL2,                  0x00 },
        { CS42L42_OSC_SWITCH,                   0x00 },
-       { CS42L42_OSC_SWITCH_STATUS,            0x05 },
        { CS42L42_RSENSE_CTL3,                  0x1B },
        { CS42L42_TSENSE_CTL,                   0x1B },
        { CS42L42_TSRS_INT_DISABLE,             0x00 },
@@ -331,6 +330,7 @@ static bool cs42l42_volatile_register(struct device *dev, unsigned int reg)
        case CS42L42_DEVID_CD:
        case CS42L42_DEVID_E:
        case CS42L42_MCLK_STATUS:
+       case CS42L42_OSC_SWITCH_STATUS:
        case CS42L42_TRSENSE_STATUS:
        case CS42L42_HS_DET_STATUS:
        case CS42L42_ADC_OVFL_STATUS: