On Tue, Jun 26, 2012 at 11:33:43AM +0530, Hebbar, Gururaja wrote: > In sound/soc/codecs/tlv320aic3x.c > > data = snd_soc_read(codec, AIC3X_PLL_PROGA_REG); > snd_soc_write(codec, AIC3X_PLL_PROGA_REG, > data | (pll_p << PLLP_SHIFT)); > > In the above code, pll-p value is OR'ed with previous value without > clearing it. Bug is not seen if pll-p value doesn't change across > Sampling frequency.
A better fix is to change the code to use snd_soc_update_bits() rather than open code it. This is more idiomatic and will suppress writes if they don't change anything.
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