korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-09-21 12:11:49 +08:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: loongson: Factor out loongson i2s enable clock functions

Browse Source 
There are a few i2s clock enable operations in loongson_i2s_set_fmt(),
convert them to simple helper functions called
loongson_i2s_enable_mclk() and loongson_i2s_enable_bclk().

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://patch.msgid.link/d6f6c818b0ecee87277f704b6a801cbbf5e712ce.1725844530.git.zhoubinbin@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Binbin Zhou 2024-09-09 15:19:55 +08:00 committed by Mark Brown
parent ddb538a300
commit 4c22b04e11
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 47 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
sound/soc/loongson/loongson_i2s.c
View File

@ -24,6 +24,9 @@
#define LOONGSON_I2S_TX_ENABLE (I2S_CTRL_TX_EN | I2S_CTRL_TX_DMA_EN)
#define LOONGSON_I2S_RX_ENABLE (I2S_CTRL_RX_EN | I2S_CTRL_RX_DMA_EN)
#define LOONGSON_I2S_DEF_DELAY 10
#define LOONGSON_I2S_DEF_TIMEOUT 500000
static int loongson_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
@ -119,10 +122,40 @@ static int loongson_i2s_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
return 0;
}
static int loongson_i2s_enable_mclk(struct loongson_i2s *i2s)
{
u32 val;
if (i2s->rev_id == 0)
return 0;
regmap_update_bits(i2s->regmap, LS_I2S_CTRL,
I2S_CTRL_MCLK_EN, I2S_CTRL_MCLK_EN);
return regmap_read_poll_timeout_atomic(i2s->regmap,
LS_I2S_CTRL, val,
val & I2S_CTRL_MCLK_READY,
LOONGSON_I2S_DEF_DELAY,
LOONGSON_I2S_DEF_TIMEOUT);
}
static int loongson_i2s_enable_bclk(struct loongson_i2s *i2s)
{
u32 val;
if (i2s->rev_id == 0)
return 0;
return regmap_read_poll_timeout_atomic(i2s->regmap,
LS_I2S_CTRL, val,
val & I2S_CTRL_CLK_READY,
LOONGSON_I2S_DEF_DELAY,
LOONGSON_I2S_DEF_TIMEOUT);
}
static int loongson_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct loongson_i2s *i2s = snd_soc_dai_get_drvdata(dai);
u32 val;
int ret;
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
@ -144,54 +177,29 @@ static int loongson_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
/* Enable master mode */
regmap_update_bits(i2s->regmap, LS_I2S_CTRL, I2S_CTRL_MASTER,
I2S_CTRL_MASTER);
if (i2s->rev_id == 1) {
ret = regmap_read_poll_timeout_atomic(i2s->regmap,
LS_I2S_CTRL, val,
val & I2S_CTRL_CLK_READY,
10, 500000);
if (ret < 0)
dev_warn(dai->dev, "wait BCLK ready timeout\n");
}
ret = loongson_i2s_enable_bclk(i2s);
if (ret < 0)
dev_warn(dai->dev, "wait BCLK ready timeout\n");
break;
case SND_SOC_DAIFMT_BC_FP:
/* Enable MCLK */
if (i2s->rev_id == 1) {
regmap_update_bits(i2s->regmap, LS_I2S_CTRL,
I2S_CTRL_MCLK_EN,
I2S_CTRL_MCLK_EN);
ret = regmap_read_poll_timeout_atomic(i2s->regmap,
LS_I2S_CTRL, val,
val & I2S_CTRL_MCLK_READY,
10, 500000);
if (ret < 0)
dev_warn(dai->dev, "wait MCLK ready timeout\n");
}
ret = loongson_i2s_enable_mclk(i2s);
if (ret < 0)
dev_warn(dai->dev, "wait MCLK ready timeout\n");
break;
case SND_SOC_DAIFMT_BP_FP:
/* Enable MCLK */
if (i2s->rev_id == 1) {
regmap_update_bits(i2s->regmap, LS_I2S_CTRL,
I2S_CTRL_MCLK_EN,
I2S_CTRL_MCLK_EN);
ret = regmap_read_poll_timeout_atomic(i2s->regmap,
LS_I2S_CTRL, val,
val & I2S_CTRL_MCLK_READY,
10, 500000);
if (ret < 0)
dev_warn(dai->dev, "wait MCLK ready timeout\n");
}
ret = loongson_i2s_enable_mclk(i2s);
if (ret < 0)
dev_warn(dai->dev, "wait MCLK ready timeout\n");
/* Enable master mode */
regmap_update_bits(i2s->regmap, LS_I2S_CTRL, I2S_CTRL_MASTER,
I2S_CTRL_MASTER);
if (i2s->rev_id == 1) {
ret = regmap_read_poll_timeout_atomic(i2s->regmap,
LS_I2S_CTRL, val,
val & I2S_CTRL_CLK_READY,
10, 500000);
if (ret < 0)
dev_warn(dai->dev, "wait BCLK ready timeout\n");
}
ret = loongson_i2s_enable_bclk(i2s);
if (ret < 0)
dev_warn(dai->dev, "wait BCLK ready timeout\n");
break;
default:
return -EINVAL;