ASoC: max98090: make REVISION_ID readable

commit e126a646f77fdd66978785cb0a3a5e46b07aee2e upstream.

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

Fixes: d4807ad2c4c0 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stephen Warren 2014-02-13 16:54:24 -07:00 committed by Greg Kroah-Hartman
parent 27ff9f136a
commit 21680f38b5
1 changed files with 1 additions and 0 deletions

View File

@ -336,6 +336,7 @@ static bool max98090_readable_register(struct device *dev, unsigned int reg)
case M98090_REG_RECORD_TDM_SLOT:
case M98090_REG_SAMPLE_RATE:
case M98090_REG_DMIC34_BIQUAD_BASE ... M98090_REG_DMIC34_BIQUAD_BASE + 0x0E:
case M98090_REG_REVISION_ID:
return true;
default:
return false;