Only fully documented registers are cached in the WM8990 but additional
registers exist.
Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/wm8990.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 572d22b..5c84f02 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -106,6 +106,7 @@ static const u16 wm8990_reg[] = {
0x0008, /* R60 - PLL1 */
0x0031, /* R61 - PLL2 */
0x0026, /* R62 - PLL3 */
+ 0x0000, /* R63 - Driver internal */
};
/*
@@ -126,10 +127,9 @@ static inline void wm8990_write_reg_cache(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
u16 *cache = codec->reg_cache;
- BUG_ON(reg > (ARRAY_SIZE(wm8990_reg)) - 1);
- /* Reset register is uncached */
- if (reg == 0)
+ /* Reset register and reserved registers are uncached */
+ if (reg == 0 || reg > ARRAY_SIZE(wm8990_reg) - 1)
return;
cache[reg] = value;
--
1.5.6.5
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