Unverified Commit c0fabd12 authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
Browse files

ASoC: imx-card: Fix DSD/PDM mclk frequency 



The DSD/PDM rate not only DSD64/128/256/512, which are the
multiple rate of 44.1kHz,  but also support the multiple
rate of 8kHz, so can't force all mclk frequency to be
22579200Hz, need to assign the frequency according to
rate.

Fixes: aa736700 ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1657100575-8261-1-git-send-email-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 676c6cc5

sound/soc/fsl/imx-card.c

+11 −3
Original line number Diff line number Diff line
@@ -17,6 +17,9 @@ 


#include "fsl_sai.h"



#define IMX_CARD_MCLK_22P5792MHZ  22579200

#define IMX_CARD_MCLK_24P576MHZ   24576000



enum codec_type {

	CODEC_DUMMY = 0,

	CODEC_AK5558 = 1,
@@ -353,9 +356,14 @@ static int imx_aif_hw_params(struct snd_pcm_substream *substream, 
		mclk_freq = akcodec_get_mclk_rate(substream, params, slots, slot_width);

	else

		mclk_freq = params_rate(params) * slots * slot_width;



	if (format_is_dsd(params)) {

		/* Use the maximum freq from DSD512 (512*44100 = 22579200) */

	if (format_is_dsd(params))

		mclk_freq = 22579200;

		if (!(params_rate(params) % 11025))

			mclk_freq = IMX_CARD_MCLK_22P5792MHZ;

		else

			mclk_freq = IMX_CARD_MCLK_24P576MHZ;

	}



	ret = snd_soc_dai_set_sysclk(cpu_dai, link_data->cpu_sysclk_id, mclk_freq,

				     SND_SOC_CLOCK_OUT);