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ASoC: arizona: Implement stability check for LHPF coefficients

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Specifying unstable coefficients for the low/high pass filters can have
a severe impact on the audio. This patchs adds a stability check on the
coefficients written to the low/high pass filter block to prevent this.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Charles Keepax 2015-06-25 09:35:12 +01:00 • committed by Mark Brown
commit 5f8e671a49
5 changed files with 38 additions and 12 deletions
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