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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2019-07-26 09:42:43 +0300
committerMark Brown <broonie@kernel.org>2019-07-26 13:09:32 +0100
commit1e112c35e3c96db7c8ca6ddaa96574f00c06e7db (patch)
tree3684939c69a76f240d1443833209adcaa0bf4575 /sound/soc/generic
parent789e162a6255325325bd321ab0cd51dc7e285054 (diff)
ASoC: ti: davinci-mcasp: Correct slot_width posed constraint
The slot_width is a property for the bus while the constraint for SNDRV_PCM_HW_PARAM_SAMPLE_BITS is for the in memory format. Applying slot_width constraint to sample_bits works most of the time, but it will blacklist valid formats in some cases. With slot_width 24 we can support S24_3LE and S24_LE formats as they both look the same on the bus, but a a 24 constraint on sample_bits would not allow S24_LE as it is stored in 32bits in memory. Implement a simple hw_rule function to allow all formats which require less or equal number of bits on the bus as slot_width (if configured). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20190726064244.3762-2-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
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