get_pdm_clk() calculates the PDM clock based on the quality setting,
but really the PDM clock is independent of the quality, it's always
rate * 4 * micfil->osr. Just drop the function and do the calculation
in the caller.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NShengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-15-s.hauer@pengutronix.deSigned-off-by: NMark Brown <broonie@kernel.org>