From: Shengjiu Wang shengjiu.wang@nxp.com
[ Upstream commit c0fabd12a8570cb932f13d9388f3d887ad44369b ]
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: aa736700f42f ("ASoC: imx-card: Add imx-card machine driver") Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com Link: https://lore.kernel.org/r/1657100575-8261-1-git-send-email-shengjiu.wang@nxp... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/fsl/imx-card.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c index 6f8efd838fcc..c0eb218a254b 100644 --- a/sound/soc/fsl/imx-card.c +++ b/sound/soc/fsl/imx-card.c @@ -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; - /* Use the maximum freq from DSD512 (512*44100 = 22579200) */ - if (format_is_dsd(params)) - mclk_freq = 22579200; + + if (format_is_dsd(params)) { + /* Use the maximum freq from DSD512 (512*44100 = 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);