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ASoC: mediatek: add MT7622 AFE support

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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>
This commit is contained in:
Ryder Lee 2018-04-25 12:19:57 +08:00 committed by Mark Brown
parent ab7b4ee986
commit bfdc56e548
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
4 changed files with 48 additions and 15 deletions
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2
sound/soc/mediatek/mt2701/mt2701-afe-clock-ctrl.c
View File

@ -44,7 +44,7 @@ int mt2701_init_clock(struct mtk_base_afe *afe)
}
/* Get I2S related clocks */
for (i = 0; i < MT2701_I2S_NUM; i++) {
for (i = 0; i < afe_priv->soc->i2s_num; i++) {
struct mt2701_i2s_path *i2s_path = &afe_priv->i2s_path[i];
struct clk *i2s_ck;
char name[13];

11
sound/soc/mediatek/mt2701/mt2701-afe-common.h
View File

@ -25,7 +25,6 @@
#define MT2701_PLL_DOMAIN_0_RATE 98304000
#define MT2701_PLL_DOMAIN_1_RATE 90316800
#define MT2701_I2S_NUM 4
enum {
MT2701_MEMIF_DL1,
@ -100,7 +99,6 @@ struct mt2701_i2s_data {
};
struct mt2701_i2s_path {
int dai_id;
int mclk_rate;
int on[MTK_STREAM_NUM];
int occupied[MTK_STREAM_NUM];
@ -112,11 +110,18 @@ struct mt2701_i2s_path {
struct clk *asrco_ck;
};
struct mt2701_soc_variants {
bool has_one_heart_mode;
int i2s_num;
};
struct mt2701_afe_private {
struct mt2701_i2s_path i2s_path[MT2701_I2S_NUM];
struct mt2701_i2s_path *i2s_path;
struct clk *base_ck[MT2701_BASE_CLK_NUM];
struct clk *mrgif_ck;
bool mrg_enable[MTK_STREAM_NUM];
const struct mt2701_soc_variants *soc;
};
#endif

49
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
View File

@ -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);

1
sound/soc/mediatek/mt2701/mt2701-reg.h
View File

@ -138,6 +138,7 @@
#define ASYS_I2S_CON_FS_SET(x) ((x) << 8)
#define ASYS_I2S_CON_RESET (0x1 << 30)
#define ASYS_I2S_CON_I2S_EN (0x1 << 0)
#define ASYS_I2S_CON_ONE_HEART_MODE (0x1 << 16)
#define ASYS_I2S_CON_I2S_COUPLE_MODE (0x1 << 17)
/* 0:EIAJ 1:I2S */
#define ASYS_I2S_CON_I2S_MODE (0x1 << 3)