aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--sound/soc/mediatek/mt8183/mt8183-dai-i2s.c104
1 files changed, 71 insertions, 33 deletions
diff --git a/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c b/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c
index 777e93d70bea..6a9ace4180d3 100644
--- a/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c
+++ b/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c
@@ -43,12 +43,13 @@ struct mtk_afe_i2s_priv {
int rate; /* for determine which apll to use */
int low_jitter_en;
- const char *share_property_name;
int share_i2s_id;
int mclk_id;
int mclk_rate;
int mclk_apll;
+
+ int use_eiaj;
};
static unsigned int get_i2s_wlen(snd_pcm_format_t format)
@@ -711,7 +712,7 @@ static int mtk_dai_i2s_config(struct mtk_base_afe *afe,
unsigned int rate_reg = mt8183_rate_transform(afe->dev,
rate, i2s_id);
snd_pcm_format_t format = params_format(params);
- unsigned int i2s_con = 0;
+ unsigned int i2s_con = 0, fmt_con = I2S_FMT_I2S << I2S_FMT_SFT;
int ret = 0;
dev_info(afe->dev, "%s(), id %d, rate %d, format %d\n",
@@ -719,17 +720,21 @@ static int mtk_dai_i2s_config(struct mtk_base_afe *afe,
i2s_id,
rate, format);
- if (i2s_priv)
+ if (i2s_priv) {
i2s_priv->rate = rate;
- else
+
+ if (i2s_priv->use_eiaj)
+ fmt_con = I2S_FMT_EIAJ << I2S_FMT_SFT;
+ } else {
dev_warn(afe->dev, "%s(), i2s_priv == NULL", __func__);
+ }
switch (i2s_id) {
case MT8183_DAI_I2S_0:
regmap_update_bits(afe->regmap, AFE_DAC_CON1,
I2S_MODE_MASK_SFT, rate_reg << I2S_MODE_SFT);
i2s_con = I2S_IN_PAD_IO_MUX << I2SIN_PAD_SEL_SFT;
- i2s_con |= I2S_FMT_I2S << I2S_FMT_SFT;
+ i2s_con |= fmt_con;
i2s_con |= get_i2s_wlen(format) << I2S_WLEN_SFT;
regmap_update_bits(afe->regmap, AFE_I2S_CON,
0xffffeffe, i2s_con);
@@ -737,7 +742,7 @@ static int mtk_dai_i2s_config(struct mtk_base_afe *afe,
case MT8183_DAI_I2S_1:
i2s_con = I2S1_SEL_O28_O29 << I2S2_SEL_O03_O04_SFT;
i2s_con |= rate_reg << I2S2_OUT_MODE_SFT;
- i2s_con |= I2S_FMT_I2S << I2S2_FMT_SFT;
+ i2s_con |= fmt_con;
i2s_con |= get_i2s_wlen(format) << I2S2_WLEN_SFT;
regmap_update_bits(afe->regmap, AFE_I2S_CON1,
0xffffeffe, i2s_con);
@@ -745,21 +750,21 @@ static int mtk_dai_i2s_config(struct mtk_base_afe *afe,
case MT8183_DAI_I2S_2:
i2s_con = 8 << I2S3_UPDATE_WORD_SFT;
i2s_con |= rate_reg << I2S3_OUT_MODE_SFT;
- i2s_con |= I2S_FMT_I2S << I2S3_FMT_SFT;
+ i2s_con |= fmt_con;
i2s_con |= get_i2s_wlen(format) << I2S3_WLEN_SFT;
regmap_update_bits(afe->regmap, AFE_I2S_CON2,
0xffffeffe, i2s_con);
break;
case MT8183_DAI_I2S_3:
i2s_con = rate_reg << I2S4_OUT_MODE_SFT;
- i2s_con |= I2S_FMT_I2S << I2S4_FMT_SFT;
+ i2s_con |= fmt_con;
i2s_con |= get_i2s_wlen(format) << I2S4_WLEN_SFT;
regmap_update_bits(afe->regmap, AFE_I2S_CON3,
0xffffeffe, i2s_con);
break;
case MT8183_DAI_I2S_5:
i2s_con = rate_reg << I2S5_OUT_MODE_SFT;
- i2s_con |= I2S_FMT_I2S << I2S5_FMT_SFT;
+ i2s_con |= fmt_con;
i2s_con |= get_i2s_wlen(format) << I2S5_WLEN_SFT;
regmap_update_bits(afe->regmap, AFE_I2S_CON4,
0xffffeffe, i2s_con);
@@ -841,9 +846,46 @@ static int mtk_dai_i2s_set_sysclk(struct snd_soc_dai *dai,
return 0;
}
+static int mtk_dai_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ struct mt8183_afe_private *afe_priv = afe->platform_priv;
+ struct mtk_afe_i2s_priv *i2s_priv;
+
+ switch (dai->id) {
+ case MT8183_DAI_I2S_0:
+ case MT8183_DAI_I2S_1:
+ case MT8183_DAI_I2S_2:
+ case MT8183_DAI_I2S_3:
+ case MT8183_DAI_I2S_5:
+ break;
+ default:
+ dev_warn(afe->dev, "%s(), id %d not support\n",
+ __func__, dai->id);
+ return -EINVAL;
+ }
+ i2s_priv = afe_priv->dai_priv[dai->id];
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_LEFT_J:
+ i2s_priv->use_eiaj = 1;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ i2s_priv->use_eiaj = 0;
+ break;
+ default:
+ dev_warn(afe->dev, "%s(), DAI format %d not support\n",
+ __func__, fmt & SND_SOC_DAIFMT_FORMAT_MASK);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static const struct snd_soc_dai_ops mtk_dai_i2s_ops = {
.hw_params = mtk_dai_i2s_hw_params,
.set_sysclk = mtk_dai_i2s_set_sysclk,
+ .set_fmt = mtk_dai_i2s_set_fmt,
};
/* dai driver */
@@ -934,54 +976,55 @@ static const struct mtk_afe_i2s_priv mt8183_i2s_priv[DAI_I2S_NUM] = {
[DAI_I2S0] = {
.id = MT8183_DAI_I2S_0,
.mclk_id = MT8183_I2S0_MCK,
- .share_property_name = "i2s0-share",
.share_i2s_id = -1,
},
[DAI_I2S1] = {
.id = MT8183_DAI_I2S_1,
.mclk_id = MT8183_I2S1_MCK,
- .share_property_name = "i2s1-share",
.share_i2s_id = -1,
},
[DAI_I2S2] = {
.id = MT8183_DAI_I2S_2,
.mclk_id = MT8183_I2S2_MCK,
- .share_property_name = "i2s2-share",
.share_i2s_id = -1,
},
[DAI_I2S3] = {
.id = MT8183_DAI_I2S_3,
.mclk_id = MT8183_I2S3_MCK,
- .share_property_name = "i2s3-share",
.share_i2s_id = -1,
},
[DAI_I2S5] = {
.id = MT8183_DAI_I2S_5,
.mclk_id = MT8183_I2S5_MCK,
- .share_property_name = "i2s5-share",
.share_i2s_id = -1,
},
};
-static int mt8183_dai_i2s_get_share(struct mtk_base_afe *afe)
+/**
+ * mt8183_dai_i2s_set_share() - Set up I2S ports to share a single clock.
+ * @afe: Pointer to &struct mtk_base_afe
+ * @main_i2s_name: The name of the I2S port that will provide the clock
+ * @secondary_i2s_name: The name of the I2S port that will use this clock
+ */
+int mt8183_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
+ const char *secondary_i2s_name)
{
- struct mt8183_afe_private *afe_priv = afe->platform_priv;
- const struct device_node *of_node = afe->dev->of_node;
- const char *of_str;
- const char *property_name;
- struct mtk_afe_i2s_priv *i2s_priv;
- int i;
+ struct mtk_afe_i2s_priv *secondary_i2s_priv;
+ int main_i2s_id;
- for (i = 0; i < DAI_I2S_NUM; i++) {
- i2s_priv = afe_priv->dai_priv[mt8183_i2s_priv[i].id];
- property_name = mt8183_i2s_priv[i].share_property_name;
- if (of_property_read_string(of_node, property_name, &of_str))
- continue;
- i2s_priv->share_i2s_id = get_i2s_id_by_name(afe, of_str);
- }
+ secondary_i2s_priv = get_i2s_priv_by_name(afe, secondary_i2s_name);
+ if (!secondary_i2s_priv)
+ return -EINVAL;
+
+ main_i2s_id = get_i2s_id_by_name(afe, main_i2s_name);
+ if (main_i2s_id < 0)
+ return main_i2s_id;
+
+ secondary_i2s_priv->share_i2s_id = main_i2s_id;
return 0;
}
+EXPORT_SYMBOL_GPL(mt8183_dai_i2s_set_share);
static int mt8183_dai_i2s_set_priv(struct mtk_base_afe *afe)
{
@@ -1031,10 +1074,5 @@ int mt8183_dai_i2s_register(struct mtk_base_afe *afe)
if (ret)
return ret;
- /* parse share i2s */
- ret = mt8183_dai_i2s_get_share(afe);
- if (ret)
- return ret;
-
return 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.