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ASoC: max98090: make REVISION_ID readable 

The REVISION_ID register is not currently marked readable. snd_soc_read()
refuses to read the register, and hence probe() fails.

Fixes: d4807ad2c4 ("regmap: Check readable regs in _regmap_read")
[exposed the bug, by checking for readability]
Fixes: 685e42154d ("ASoC: Replace max98090 Device Driver")
[left out this register from the readable list]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Stephen Warren 2014-02-13 16:54:24 -07:00 committed by Mark Brown
parent c42c8922c4
commit e126a646f7
1 changed files with 1 additions and 0 deletions
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sound/soc/codecs/max98090.c
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@ -336,6 +336,7 @@ static bool max98090_readable_register(struct device *dev, unsigned int reg)
case M98090_REG_RECORD_TDM_SLOT: case M98090_REG_RECORD_TDM_SLOT:
case M98090_REG_SAMPLE_RATE: case M98090_REG_SAMPLE_RATE:
case M98090_REG_DMIC34_BIQUAD_BASE ... M98090_REG_DMIC34_BIQUAD_BASE + 0x0E: case M98090_REG_DMIC34_BIQUAD_BASE ... M98090_REG_DMIC34_BIQUAD_BASE + 0x0E:
case M98090_REG_REVISION_ID:
return true; return true;
default: default:
return false; return false;