ASoC: rt5645: set RT5645_PRIV_INDEX as volatile

RT5645_PRIV_INDEX(0x6a) indicate the address of PR- registers. So,
it should be volatile.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 3c6594d..c0438e4 100644 (file)
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -440,6 +440,7 @@ static bool rt5645_volatile_register(struct device *dev, unsigned int reg)
 
        switch (reg) {
        case RT5645_RESET:
+       case RT5645_PRIV_INDEX:
        case RT5645_PRIV_DATA:
        case RT5645_IN1_CTRL1:
        case RT5645_IN1_CTRL2: