drivers: dai: intel: ssp: Only setup mclk/bclk when it is needed by role
When SSP is consumer for FS and BCLK then it does not needs MCLK as the
shifting and rate is derived form the I2S bus directly.
When SSP provides FS only then the BCLK setup is not needed.
When SSP provides BCLK only then both MCLK and BCLK setup is needed.
In hardware multiple SSPs share the same MCLK source, in case of one
SSP port is used as clock provider while other is used as clock consumer
then the consumer SSP should not need to depend on the provider SSP
configuration, the ports can run in different clock rates.
In this example the consumer SSP should not try to configure and lock the
MCLK frequency to some arbitrary rate (as it does not need MCLK at all)
which might be different than the frequency needed by the provider port.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
2 files changed
