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Dan Murphy
244ac15de7
Fix the BCLK inversion for DSP modes This is how it is defined by ASoC: * BCLK: * - "normal" polarity means signal is available at rising edge of BCLK * - "inverted" polarity means signal is available at falling edge of BCLK The adcx140 defines the BCLK edge based on coding type. The PCM (DSP_A/B) should drive on rising and sample on falling edge, so from ASoC pov, it is IB_NF. But from the codec pov if it is configured in DSP mode, then the BCLK should not be inverted, defaults to the coding standard. For i2s, it is NB_NF from ASoC pov (drive on falling, sample on rising). >From the codec's pov BCLK should not invert either, as this is the default for the coding. So, inversion must take the format into account: IB_NF + DSP_A/B == the codec bclk inversion should be disabled NB_NF + DSP_A/B == the codec bclk inversion should be enabled NB_NF + I2S == the codec bclk inversion should be disabled Signed-off-by: Dan Murphy <dmurphy@ti.com> Link: https://lore.kernel.org/r/20200915190606.1744-2-dmurphy@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
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