The SAI on i.MX8MQ don't support one2one ratio for mclk:bclk, so
the mclk frequency exceeds the supported range of codec for
the case that sample rate is larger than 705kHZ and format is
S32_LE. Update the supported width for such case.
Fixes: aa736700f42f ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
---
sound/soc/fsl/imx-card.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index e758c4f1b0bc..e0f3aa6d9501 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c
@@ -553,8 +553,23 @@ static int imx_card_parse_of(struct imx_card_data *data)
link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1;
/* sai may support mclk/bclk = 1 */
- if (of_find_property(np, "fsl,mclk-equal-bclk", NULL))
+ if (of_find_property(np, "fsl,mclk-equal-bclk", NULL)) {
link_data->one2one_ratio = true;
+ } else {
+ int i;
+
+ /*
+ * i.MX8MQ don't support one2one ratio, then
+ * with ak4497 only 16bit case is supported.
+ */
+ for (i = 0; i < ARRAY_SIZE(ak4497_fs_mul); i++) {
+ if (ak4497_fs_mul[i].rmin == 705600 &&
+ ak4497_fs_mul[i].rmax == 768000) {
+ ak4497_fs_mul[i].wmin = 32;
+ ak4497_fs_mul[i].wmax = 32;
+ }
+ }
+ }
}
link->cpus->of_node = args.np;
--
2.17.1
