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authorRyder Lee <ryder.lee@mediatek.com>2018-04-25 06:19:57 +0200
committerMark Brown <broonie@kernel.org>2018-04-26 16:09:02 +0200
commitbfdc56e54890fd6be05f14c9441c540e649468f7 (patch)
tree5ff668098eb07f7f6544e1098933390187b9fcf9 /sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
parentASoC: mediatek: Add MTK_STREAM_NUM to mtk-base-afe.h (diff)
downloadlinux-bfdc56e54890fd6be05f14c9441c540e649468f7.tar.xz
linux-bfdc56e54890fd6be05f14c9441c540e649468f7.zip
ASoC: mediatek: add MT7622 AFE support
This patch adds support for the MT7622 AFE which reuses MT2701 driver. We also introduce the 'struct mt2701_soc_variants' to differentiate between the SoC generations as there might be other (existing or future) chips that use the same binding and driver, then being a little more abstract could help in the long run. Cc: Jia Zeng <jia.zeng@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Reviewed-by: Garlic Tseng <garlic.tseng@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/mediatek/mt2701/mt2701-afe-pcm.c')
-rw-r--r--sound/soc/mediatek/mt2701/mt2701-afe-pcm.c49
1 files changed, 38 insertions, 11 deletions
diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
index 99094a574213..21652db6e6a3 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
@@ -21,6 +21,7 @@
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include "mt2701-afe-common.h"
@@ -37,7 +38,7 @@ static const struct snd_pcm_hardware mt2701_afe_hardware = {
.period_bytes_max = 1024 * 256,
.periods_min = 4,
.periods_max = 1024,
- .buffer_bytes_max = 1024 * 1024 * 16,
+ .buffer_bytes_max = 1024 * 1024,
.fifo_size = 0,
};
@@ -69,9 +70,10 @@ static const struct mt2701_afe_rate mt2701_afe_i2s_rates[] = {
static int mt2701_dai_num_to_i2s(struct mtk_base_afe *afe, int num)
{
+ struct mt2701_afe_private *afe_priv = afe->platform_priv;
int val = num - MT2701_IO_I2S;
- if (val < 0 || val >= MT2701_I2S_NUM) {
+ if (val < 0 || val >= afe_priv->soc->i2s_num) {
dev_err(afe->dev, "%s, num not available, num %d, val %d\n",
__func__, num, val);
return -EINVAL;
@@ -94,12 +96,14 @@ static int mt2701_afe_i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ struct mt2701_afe_private *afe_priv = afe->platform_priv;
int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ bool mode = afe_priv->soc->has_one_heart_mode;
if (i2s_num < 0)
return i2s_num;
- return mt2701_afe_enable_mclk(afe, i2s_num);
+ return mt2701_afe_enable_mclk(afe, mode ? 1 : i2s_num);
}
static int mt2701_afe_i2s_path_disable(struct mtk_base_afe *afe,
@@ -130,6 +134,7 @@ static void mt2701_afe_i2s_shutdown(struct snd_pcm_substream *substream,
struct mt2701_afe_private *afe_priv = afe->platform_priv;
int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
struct mt2701_i2s_path *i2s_path;
+ bool mode = afe_priv->soc->has_one_heart_mode;
if (i2s_num < 0)
return;
@@ -149,7 +154,7 @@ static void mt2701_afe_i2s_shutdown(struct snd_pcm_substream *substream,
exit:
/* disable mclk */
- mt2701_afe_disable_mclk(afe, i2s_num);
+ mt2701_afe_disable_mclk(afe, mode ? 1 : i2s_num);
}
static int mt2701_i2s_path_enable(struct mtk_base_afe *afe,
@@ -157,6 +162,7 @@ static int mt2701_i2s_path_enable(struct mtk_base_afe *afe,
int stream_dir, int rate)
{
const struct mt2701_i2s_data *i2s_data = i2s_path->i2s_data[stream_dir];
+ struct mt2701_afe_private *afe_priv = afe->platform_priv;
int reg, fs, w_len = 1; /* now we support bck 64bits only */
unsigned int mask, val;
@@ -180,6 +186,10 @@ static int mt2701_i2s_path_enable(struct mtk_base_afe *afe,
val |= ASYS_I2S_IN_PHASE_FIX;
reg = ASMI_TIMING_CON1;
} else {
+ if (afe_priv->soc->has_one_heart_mode) {
+ mask |= ASYS_I2S_CON_ONE_HEART_MODE;
+ val |= ASYS_I2S_CON_ONE_HEART_MODE;
+ }
reg = ASMO_TIMING_CON1;
}
@@ -212,6 +222,7 @@ static int mt2701_afe_i2s_prepare(struct snd_pcm_substream *substream,
struct mt2701_afe_private *afe_priv = afe->platform_priv;
int ret, i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
struct mt2701_i2s_path *i2s_path;
+ bool mode = afe_priv->soc->has_one_heart_mode;
if (i2s_num < 0)
return i2s_num;
@@ -221,7 +232,7 @@ static int mt2701_afe_i2s_prepare(struct snd_pcm_substream *substream,
if (i2s_path->occupied[substream->stream])
return -EBUSY;
- ret = mt2701_mclk_configuration(afe, i2s_num);
+ ret = mt2701_mclk_configuration(afe, mode ? 1 : i2s_num);
if (ret)
return ret;
@@ -244,19 +255,18 @@ static int mt2701_afe_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
struct mt2701_afe_private *afe_priv = afe->platform_priv;
int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ bool mode = afe_priv->soc->has_one_heart_mode;
if (i2s_num < 0)
return i2s_num;
/* mclk */
if (dir == SND_SOC_CLOCK_IN) {
- dev_warn(dai->dev,
- "%s() warning: mt2701 doesn't support mclk input\n",
- __func__);
+ dev_warn(dai->dev, "The SoCs doesn't support mclk input\n");
return -EINVAL;
}
- afe_priv->i2s_path[i2s_num].mclk_rate = freq;
+ afe_priv->i2s_path[mode ? 1 : i2s_num].mclk_rate = freq;
return 0;
}
@@ -1347,9 +1357,16 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
return -ENOMEM;
afe_priv = afe->platform_priv;
+ afe_priv->soc = of_device_get_match_data(&pdev->dev);
afe->dev = &pdev->dev;
dev = afe->dev;
+ afe_priv->i2s_path = devm_kzalloc(dev, afe_priv->soc->i2s_num *
+ sizeof(struct mt2701_i2s_path),
+ GFP_KERNEL);
+ if (!afe_priv->i2s_path)
+ return -ENOMEM;
+
irq_id = platform_get_irq_byname(pdev, "asys");
if (irq_id < 0) {
dev_err(dev, "unable to get ASYS IRQ\n");
@@ -1394,7 +1411,7 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
afe->irqs[i].irq_data = &irq_data[i];
/* I2S initialize */
- for (i = 0; i < MT2701_I2S_NUM; i++) {
+ for (i = 0; i < afe_priv->soc->i2s_num; i++) {
afe_priv->i2s_path[i].i2s_data[SNDRV_PCM_STREAM_PLAYBACK] =
&mt2701_i2s_data[i][SNDRV_PCM_STREAM_PLAYBACK];
afe_priv->i2s_path[i].i2s_data[SNDRV_PCM_STREAM_CAPTURE] =
@@ -1459,8 +1476,18 @@ static int mt2701_afe_pcm_dev_remove(struct platform_device *pdev)
return 0;
}
+static const struct mt2701_soc_variants mt2701_soc_v1 = {
+ .i2s_num = 4,
+};
+
+static const struct mt2701_soc_variants mt2701_soc_v2 = {
+ .has_one_heart_mode = true,
+ .i2s_num = 4,
+};
+
static const struct of_device_id mt2701_afe_pcm_dt_match[] = {
- { .compatible = "mediatek,mt2701-audio", },
+ { .compatible = "mediatek,mt2701-audio", .data = &mt2701_soc_v1 },
+ { .compatible = "mediatek,mt7622-audio", .data = &mt2701_soc_v2 },
{},
};
MODULE_DEVICE_TABLE(of, mt2701_afe_pcm_dt_match);