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Subject[PATCH 3.13 16/46] ASoC: max98090: make REVISION_ID readable
Date
3.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stephen Warren <swarren@nvidia.com>

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: 685e42154dcf ("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>

---
sound/soc/codecs/max98090.c | 1 +
1 file changed, 1 insertion(+)

--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -336,6 +336,7 @@ static bool max98090_readable_register(s
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;



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