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ASoC: Allow writes to uncached registers in WM8990 

Only fully documented registers are cached in the WM8990 but additional
registers exist.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2008-11-17 16:59:24 +00:00
parent 7ad933d7a6
commit ba533e95b9
1 changed files with 3 additions and 3 deletions
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6
sound/soc/codecs/wm8990.c
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@ -106,6 +106,7 @@ static const u16 wm8990_reg[] = {
0x0008, /* R60 - PLL1 */ 0x0008, /* R60 - PLL1 */
0x0031, /* R61 - PLL2 */ 0x0031, /* R61 - PLL2 */
0x0026, /* R62 - PLL3 */ 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) unsigned int reg, unsigned int value)
{ {
u16 *cache = codec->reg_cache; u16 *cache = codec->reg_cache;
BUG_ON(reg > (ARRAY_SIZE(wm8990_reg)) - 1);
/* Reset register is uncached */ /* Reset register and reserved registers are uncached */
if (reg == 0) if (reg == 0 || reg > ARRAY_SIZE(wm8990_reg) - 1)
return; return;
cache[reg] = value; cache[reg] = value;