On 21.06.2023 17:35, Mark Brown wrote:
To repeat:
I'm saying there should be some interlock between these two settings, if
nothing else setting DSP A mode should force TDM mode with automatically
configured slot sizes.
Ok. How about that:
---
sound/soc/codecs/max98090.c | 52 ++++++++++++++++++++-----------------
sound/soc/codecs/max98090.h | 2 ++
2 files changed, 30 insertions(+), 24 deletions(-)
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 142083b13ac3..c30305269514 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -1582,7 +1582,7 @@ static int max98090_dai_set_fmt(struct snd_soc_dai *codec_dai,
struct snd_soc_component *component = codec_dai->component;
struct max98090_priv *max98090 = snd_soc_component_get_drvdata(component);
struct max98090_cdata *cdata;
- u8 regval;
+ u8 regval, tdm_regval;
max98090->dai_fmt = fmt;
cdata = &max98090->dai[0];
@@ -1591,6 +1591,7 @@ static int max98090_dai_set_fmt(struct snd_soc_dai *codec_dai,
cdata->fmt = fmt;
regval = 0;
+ tdm_regval = 0;
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBC_CFC:
/* Set to consumer mode PLL - MAS mode off */
@@ -1636,7 +1637,8 @@ static int max98090_dai_set_fmt(struct snd_soc_dai *codec_dai,
regval |= M98090_RJ_MASK;
break;
case SND_SOC_DAIFMT_DSP_A:
- /* Not supported mode */
+ tdm_regval |= M98090_TDM_MASK;
+ break;
default:
dev_err(component->dev, "DAI format unsupported");
return -EINVAL;
@@ -1665,11 +1667,20 @@ static int max98090_dai_set_fmt(struct snd_soc_dai *codec_dai,
* seen for the case of TDM mode. The remaining cases have
* normal logic.
*/
- if (max98090->tdm_slots > 1)
+ if (tdm_regval)
regval ^= M98090_BCI_MASK;
snd_soc_component_write(component,
M98090_REG_INTERFACE_FORMAT, regval);
+
+ regval = 0;
+ if (tdm_regval)
+ regval = max98090->tdm_lslot << M98090_TDM_SLOTL_SHIFT |
+ max98090->tdm_rslot << M98090_TDM_SLOTR_SHIFT |
+ 0 << M98090_TDM_SLOTDLY_SHIFT;
+
+ snd_soc_component_write(component, M98090_REG_TDM_FORMAT, regval);
+ snd_soc_component_write(component, M98090_REG_TDM_CONTROL, tdm_regval);
}
return 0;
@@ -1680,33 +1691,23 @@ static int max98090_set_tdm_slot(struct snd_soc_dai *codec_dai,
{
struct snd_soc_component *component = codec_dai->component;
struct max98090_priv *max98090 = snd_soc_component_get_drvdata(component);
- struct max98090_cdata *cdata;
- cdata = &max98090->dai[0];
if (slots < 0 || slots > 4)
return -EINVAL;
- max98090->tdm_slots = slots;
- max98090->tdm_width = slot_width;
+ if (slot_width != 16)
+ return -EINVAL;
- if (max98090->tdm_slots > 1) {
- /* SLOTL SLOTR SLOTDLY */
- snd_soc_component_write(component, M98090_REG_TDM_FORMAT,
- 0 << M98090_TDM_SLOTL_SHIFT |
- 1 << M98090_TDM_SLOTR_SHIFT |
- 0 << M98090_TDM_SLOTDLY_SHIFT);
-
- /* FSW TDM */
- snd_soc_component_update_bits(component, M98090_REG_TDM_CONTROL,
- M98090_TDM_MASK,
- M98090_TDM_MASK);
- }
+ if (rx_mask != tx_mask)
+ return -EINVAL;
- /*
- * Normally advisable to set TDM first, but this permits either order
- */
- cdata->fmt = 0;
- max98090_dai_set_fmt(codec_dai, max98090->dai_fmt);
+ if (!rx_mask)
+ return -EINVAL;
+
+ max98090->tdm_slots = slots;
+ max98090->tdm_width = slot_width;
+ max98090->tdm_lslot = ffs(rx_mask) - 1;
+ max98090->tdm_rslot = fls(rx_mask) - 1;
return 0;
}
@@ -2411,6 +2412,9 @@ static int max98090_probe(struct snd_soc_component *component)
max98090->pa1en = 0;
max98090->pa2en = 0;
+ max98090->tdm_lslot = 0;
+ max98090->tdm_rslot = 1;
+
ret = snd_soc_component_read(component, M98090_REG_REVISION_ID);
if (ret < 0) {
dev_err(component->dev, "Failed to read device revision: %d\n",
diff --git a/sound/soc/codecs/max98090.h b/sound/soc/codecs/max98090.h
index a197114b0dad..2d2971acd150 100644
--- a/sound/soc/codecs/max98090.h
+++ b/sound/soc/codecs/max98090.h
@@ -1534,6 +1534,8 @@ struct max98090_priv {
unsigned int dai_fmt;
int tdm_slots;
int tdm_width;
+ int tdm_lslot;
+ int tdm_rslot;
u8 lin_state;
unsigned int pa1en;
unsigned int pa2en;
--
2.40.1
