According to RM, on auto mode:
For codec AK4458 and AK4497, the lowest ratio of MLCK/FS is 256
if sample rate is 8kHz-48kHz,
For codec AK5558, the lowest ratio of MLCK/FS is 512 if sample
rate is 8kHz-48kHz.
With these setting the sound quality for 8kHz-48kHz can be improved.
Fixes: aa736700f42f ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
---
sound/soc/fsl/imx-card.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index f9196fb7e833..6f8efd838fcc 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c
@@ -120,7 +120,7 @@ struct imx_card_data {
static struct imx_akcodec_fs_mul ak4458_fs_mul[] = {
/* Normal, < 32kHz */
- { .rmin = 8000, .rmax = 24000, .wmin = 1024, .wmax = 1024, },
+ { .rmin = 8000, .rmax = 24000, .wmin = 256, .wmax = 1024, },
/* Normal, 32kHz */
{ .rmin = 32000, .rmax = 32000, .wmin = 256, .wmax = 1024, },
/* Normal */
@@ -151,8 +151,8 @@ static struct imx_akcodec_fs_mul ak4497_fs_mul[] = {
* Table 7 - mapping multiplier and speed mode
* Tables 8 & 9 - mapping speed mode and LRCK fs
*/
- { .rmin = 8000, .rmax = 32000, .wmin = 1024, .wmax = 1024, }, /* Normal, <= 32kHz */
- { .rmin = 44100, .rmax = 48000, .wmin = 512, .wmax = 512, }, /* Normal */
+ { .rmin = 8000, .rmax = 32000, .wmin = 256, .wmax = 1024, }, /* Normal, <= 32kHz */
+ { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 512, }, /* Normal */
{ .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, /* Double */
{ .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, /* Quad */
{ .rmin = 352800, .rmax = 384000, .wmin = 128, .wmax = 128, }, /* Oct */
@@ -164,7 +164,7 @@ static struct imx_akcodec_fs_mul ak4497_fs_mul[] = {
* (Table 4 from datasheet)
*/
static struct imx_akcodec_fs_mul ak5558_fs_mul[] = {
- { .rmin = 8000, .rmax = 32000, .wmin = 1024, .wmax = 1024, },
+ { .rmin = 8000, .rmax = 32000, .wmin = 512, .wmax = 1024, },
{ .rmin = 44100, .rmax = 48000, .wmin = 512, .wmax = 512, },
{ .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, },
{ .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, },
--
2.17.1
