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Diffstat (limited to 'sound/soc/samsung/i2s.c')
-rw-r--r--sound/soc/samsung/i2s.c206
1 files changed, 97 insertions, 109 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index e00974bc5616..52a47ed292a4 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -34,11 +34,6 @@
#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
-enum samsung_dai_type {
- TYPE_PRI,
- TYPE_SEC,
-};
-
struct samsung_i2s_variant_regs {
unsigned int bfs_off;
unsigned int rfs_off;
@@ -54,7 +49,6 @@ struct samsung_i2s_variant_regs {
};
struct samsung_i2s_dai_data {
- int dai_type;
u32 quirks;
const struct samsung_i2s_variant_regs *i2s_variant_regs;
};
@@ -483,6 +477,9 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
unsigned int rsrc_mask = 1 << i2s_regs->rclksrc_off;
u32 mod, mask, val = 0;
unsigned long flags;
+ int ret = 0;
+
+ pm_runtime_get_sync(dai->dev);
spin_lock_irqsave(i2s->lock, flags);
mod = readl(i2s->addr + I2SMOD);
@@ -507,7 +504,8 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
&& (mod & cdcon_mask))))) {
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto err;
}
if (dir == SND_SOC_CLOCK_IN)
@@ -535,7 +533,7 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
} else {
i2s->rclk_srcrate =
clk_get_rate(i2s->op_clk);
- return 0;
+ goto done;
}
}
@@ -546,8 +544,11 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
i2s->op_clk = clk_get(&i2s->pdev->dev,
"i2s_opclk0");
- if (WARN_ON(IS_ERR(i2s->op_clk)))
- return PTR_ERR(i2s->op_clk);
+ if (WARN_ON(IS_ERR(i2s->op_clk))) {
+ ret = PTR_ERR(i2s->op_clk);
+ i2s->op_clk = NULL;
+ goto err;
+ }
clk_prepare_enable(i2s->op_clk);
i2s->rclk_srcrate = clk_get_rate(i2s->op_clk);
@@ -561,12 +562,13 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
|| (clk_id && !(mod & rsrc_mask))) {
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto err;
} else {
/* Call can't be on the active DAI */
i2s->op_clk = other->op_clk;
i2s->rclk_srcrate = other->rclk_srcrate;
- return 0;
+ goto done;
}
if (clk_id == 1)
@@ -574,7 +576,8 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
break;
default:
dev_err(&i2s->pdev->dev, "We don't serve that!\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err;
}
spin_lock_irqsave(i2s->lock, flags);
@@ -582,8 +585,13 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
mod = (mod & ~mask) | val;
writel(mod, i2s->addr + I2SMOD);
spin_unlock_irqrestore(i2s->lock, flags);
+done:
+ pm_runtime_put(dai->dev);
return 0;
+err:
+ pm_runtime_put(dai->dev);
+ return ret;
}
static int i2s_set_fmt(struct snd_soc_dai *dai,
@@ -652,6 +660,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
return -EINVAL;
}
+ pm_runtime_get_sync(dai->dev);
spin_lock_irqsave(i2s->lock, flags);
mod = readl(i2s->addr + I2SMOD);
/*
@@ -661,6 +670,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
if (any_active(i2s) &&
((mod & (sdf_mask | lrp_rlow | mod_slave)) != tmp)) {
spin_unlock_irqrestore(i2s->lock, flags);
+ pm_runtime_put(dai->dev);
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
return -EAGAIN;
@@ -670,6 +680,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
mod |= tmp;
writel(mod, i2s->addr + I2SMOD);
spin_unlock_irqrestore(i2s->lock, flags);
+ pm_runtime_put(dai->dev);
return 0;
}
@@ -681,6 +692,8 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
u32 mod, mask = 0, val = 0;
unsigned long flags;
+ WARN_ON(!pm_runtime_active(dai->dev));
+
if (!is_secondary(i2s))
mask |= (MOD_DC2_EN | MOD_DC1_EN);
@@ -769,6 +782,8 @@ static int i2s_startup(struct snd_pcm_substream *substream,
struct i2s_dai *other = get_other_dai(i2s);
unsigned long flags;
+ pm_runtime_get_sync(dai->dev);
+
spin_lock_irqsave(&lock, flags);
i2s->mode |= DAI_OPENED;
@@ -806,6 +821,8 @@ static void i2s_shutdown(struct snd_pcm_substream *substream,
i2s->bfs = 0;
spin_unlock_irqrestore(&lock, flags);
+
+ pm_runtime_put(dai->dev);
}
static int config_setup(struct i2s_dai *i2s)
@@ -880,6 +897,7 @@ static int i2s_trigger(struct snd_pcm_substream *substream,
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ pm_runtime_get_sync(dai->dev);
spin_lock_irqsave(i2s->lock, flags);
if (config_setup(i2s)) {
@@ -908,6 +926,7 @@ static int i2s_trigger(struct snd_pcm_substream *substream,
}
spin_unlock_irqrestore(i2s->lock, flags);
+ pm_runtime_put(dai->dev);
break;
}
@@ -922,13 +941,16 @@ static int i2s_set_clkdiv(struct snd_soc_dai *dai,
switch (div_id) {
case SAMSUNG_I2S_DIV_BCLK:
+ pm_runtime_get_sync(dai->dev);
if ((any_active(i2s) && div && (get_bfs(i2s) != div))
|| (other && other->bfs && (other->bfs != div))) {
+ pm_runtime_put(dai->dev);
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
return -EAGAIN;
}
i2s->bfs = div;
+ pm_runtime_put(dai->dev);
break;
default:
dev_err(&i2s->pdev->dev,
@@ -947,6 +969,8 @@ i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
snd_pcm_sframes_t delay;
const struct samsung_i2s_variant_regs *i2s_regs = i2s->variant_regs;
+ WARN_ON(!pm_runtime_active(dai->dev));
+
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
delay = FIC_RXCOUNT(reg);
else if (is_secondary(i2s))
@@ -960,24 +984,12 @@ i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
#ifdef CONFIG_PM
static int i2s_suspend(struct snd_soc_dai *dai)
{
- struct i2s_dai *i2s = to_info(dai);
-
- i2s->suspend_i2smod = readl(i2s->addr + I2SMOD);
- i2s->suspend_i2scon = readl(i2s->addr + I2SCON);
- i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
-
- return 0;
+ return pm_runtime_force_suspend(dai->dev);
}
static int i2s_resume(struct snd_soc_dai *dai)
{
- struct i2s_dai *i2s = to_info(dai);
-
- writel(i2s->suspend_i2scon, i2s->addr + I2SCON);
- writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);
- writel(i2s->suspend_i2spsr, i2s->addr + I2SPSR);
-
- return 0;
+ return pm_runtime_force_resume(dai->dev);
}
#else
#define i2s_suspend NULL
@@ -990,6 +1002,8 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
struct i2s_dai *other = get_other_dai(i2s);
unsigned long flags;
+ pm_runtime_get_sync(dai->dev);
+
if (is_secondary(i2s)) { /* If this is probe on the secondary DAI */
snd_soc_dai_init_dma_data(dai, &other->sec_dai->dma_playback,
NULL);
@@ -1022,6 +1036,7 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
if (!is_opened(other))
i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
0, SND_SOC_CLOCK_IN);
+ pm_runtime_put(dai->dev);
return 0;
}
@@ -1031,6 +1046,8 @@ static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
struct i2s_dai *i2s = snd_soc_dai_get_drvdata(dai);
unsigned long flags;
+ pm_runtime_get_sync(dai->dev);
+
if (!is_secondary(i2s)) {
if (i2s->quirks & QUIRK_NEED_RSTCLR) {
spin_lock_irqsave(i2s->lock, flags);
@@ -1039,6 +1056,8 @@ static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
}
}
+ pm_runtime_put(dai->dev);
+
return 0;
}
@@ -1066,7 +1085,6 @@ static const struct snd_soc_component_driver samsung_i2s_component = {
static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
{
struct i2s_dai *i2s;
- int ret;
i2s = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dai), GFP_KERNEL);
if (i2s == NULL)
@@ -1091,33 +1109,21 @@ static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
i2s->i2s_dai_drv.capture.channels_max = 2;
i2s->i2s_dai_drv.capture.rates = SAMSUNG_I2S_RATES;
i2s->i2s_dai_drv.capture.formats = SAMSUNG_I2S_FMTS;
- dev_set_drvdata(&i2s->pdev->dev, i2s);
- } else { /* Create a new platform_device for Secondary */
- i2s->pdev = platform_device_alloc("samsung-i2s-sec", -1);
- if (!i2s->pdev)
- return NULL;
-
- i2s->pdev->dev.parent = &pdev->dev;
-
- platform_set_drvdata(i2s->pdev, i2s);
- ret = platform_device_add(i2s->pdev);
- if (ret < 0)
- return NULL;
}
-
return i2s;
}
-static void i2s_free_sec_dai(struct i2s_dai *i2s)
-{
- platform_device_del(i2s->pdev);
-}
-
#ifdef CONFIG_PM
static int i2s_runtime_suspend(struct device *dev)
{
struct i2s_dai *i2s = dev_get_drvdata(dev);
+ i2s->suspend_i2smod = readl(i2s->addr + I2SMOD);
+ i2s->suspend_i2scon = readl(i2s->addr + I2SCON);
+ i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
+
+ if (i2s->op_clk)
+ clk_disable_unprepare(i2s->op_clk);
clk_disable_unprepare(i2s->clk);
return 0;
@@ -1128,6 +1134,12 @@ static int i2s_runtime_resume(struct device *dev)
struct i2s_dai *i2s = dev_get_drvdata(dev);
clk_prepare_enable(i2s->clk);
+ if (i2s->op_clk)
+ clk_prepare_enable(i2s->op_clk);
+
+ writel(i2s->suspend_i2scon, i2s->addr + I2SCON);
+ writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);
+ writel(i2s->suspend_i2spsr, i2s->addr + I2SPSR);
return 0;
}
@@ -1179,13 +1191,13 @@ static int i2s_register_clock_provider(struct platform_device *pdev)
u32 val = readl(i2s->addr + I2SPSR);
writel(val | PSR_PSREN, i2s->addr + I2SPSR);
- i2s->clk_table[CLK_I2S_RCLK_SRC] = clk_register_mux(NULL,
+ i2s->clk_table[CLK_I2S_RCLK_SRC] = clk_register_mux(dev,
"i2s_rclksrc", p_names, ARRAY_SIZE(p_names),
CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT,
i2s->addr + I2SMOD, reg_info->rclksrc_off,
1, 0, i2s->lock);
- i2s->clk_table[CLK_I2S_RCLK_PSR] = clk_register_divider(NULL,
+ i2s->clk_table[CLK_I2S_RCLK_PSR] = clk_register_divider(dev,
"i2s_presc", "i2s_rclksrc",
CLK_SET_RATE_PARENT,
i2s->addr + I2SPSR, 8, 6, 0, i2s->lock);
@@ -1196,7 +1208,7 @@ static int i2s_register_clock_provider(struct platform_device *pdev)
of_property_read_string_index(dev->of_node,
"clock-output-names", 0, &clk_name[0]);
- i2s->clk_table[CLK_I2S_CDCLK] = clk_register_gate(NULL, clk_name[0],
+ i2s->clk_table[CLK_I2S_CDCLK] = clk_register_gate(dev, clk_name[0],
p_names[0], CLK_SET_RATE_PARENT,
i2s->addr + I2SMOD, reg_info->cdclkcon_off,
CLK_GATE_SET_TO_DISABLE, i2s->lock);
@@ -1218,7 +1230,6 @@ static int samsung_i2s_probe(struct platform_device *pdev)
{
struct i2s_dai *pri_dai, *sec_dai = NULL;
struct s3c_audio_pdata *i2s_pdata = pdev->dev.platform_data;
- struct samsung_i2s *i2s_cfg = NULL;
struct resource *res;
u32 regs_base, quirks = 0, idma_addr = 0;
struct device_node *np = pdev->dev.of_node;
@@ -1231,22 +1242,6 @@ static int samsung_i2s_probe(struct platform_device *pdev)
i2s_dai_data = (struct samsung_i2s_dai_data *)
platform_get_device_id(pdev)->driver_data;
- /* Call during the secondary interface registration */
- if (i2s_dai_data->dai_type == TYPE_SEC) {
- sec_dai = dev_get_drvdata(&pdev->dev);
- if (!sec_dai) {
- dev_err(&pdev->dev, "Unable to get drvdata\n");
- return -EFAULT;
- }
- ret = samsung_asoc_dma_platform_register(&pdev->dev,
- sec_dai->filter, "tx-sec", NULL);
- if (ret != 0)
- return ret;
-
- return devm_snd_soc_register_component(&sec_dai->pdev->dev,
- &samsung_i2s_component,
- &sec_dai->i2s_dai_drv, 1);
- }
pri_dai = i2s_alloc_dai(pdev, false);
if (!pri_dai) {
@@ -1267,13 +1262,8 @@ static int samsung_i2s_probe(struct platform_device *pdev)
pri_dai->dma_capture.filter_data = i2s_pdata->dma_capture;
pri_dai->filter = i2s_pdata->dma_filter;
- if (&i2s_pdata->type)
- i2s_cfg = &i2s_pdata->type.i2s;
-
- if (i2s_cfg) {
- quirks = i2s_cfg->quirks;
- idma_addr = i2s_cfg->idma_addr;
- }
+ quirks = i2s_pdata->type.quirks;
+ idma_addr = i2s_pdata->type.idma_addr;
} else {
quirks = i2s_dai_data->quirks;
if (of_property_read_u32(np, "samsung,idma-addr",
@@ -1305,6 +1295,8 @@ static int samsung_i2s_probe(struct platform_device *pdev)
}
pri_dai->dma_playback.addr = regs_base + I2STXD;
pri_dai->dma_capture.addr = regs_base + I2SRXD;
+ pri_dai->dma_playback.chan_name = "tx";
+ pri_dai->dma_capture.chan_name = "rx";
pri_dai->dma_playback.addr_width = 4;
pri_dai->dma_capture.addr_width = 4;
pri_dai->quirks = quirks;
@@ -1318,6 +1310,12 @@ static int samsung_i2s_probe(struct platform_device *pdev)
if (ret < 0)
goto err_disable_clk;
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &samsung_i2s_component,
+ &pri_dai->i2s_dai_drv, 1);
+ if (ret < 0)
+ goto err_disable_clk;
+
if (quirks & QUIRK_SEC_DAI) {
sec_dai = i2s_alloc_dai(pdev, true);
if (!sec_dai) {
@@ -1329,6 +1327,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)
sec_dai->lock = &pri_dai->spinlock;
sec_dai->variant_regs = pri_dai->variant_regs;
sec_dai->dma_playback.addr = regs_base + I2STXDS;
+ sec_dai->dma_playback.chan_name = "tx-sec";
if (!np) {
sec_dai->dma_playback.filter_data = i2s_pdata->dma_play_sec;
@@ -1342,6 +1341,17 @@ static int samsung_i2s_probe(struct platform_device *pdev)
sec_dai->idma_playback.addr = idma_addr;
sec_dai->pri_dai = pri_dai;
pri_dai->sec_dai = sec_dai;
+
+ ret = samsung_asoc_dma_platform_register(&pdev->dev,
+ sec_dai->filter, "tx-sec", NULL);
+ if (ret < 0)
+ goto err_disable_clk;
+
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &samsung_i2s_component,
+ &sec_dai->i2s_dai_drv, 1);
+ if (ret < 0)
+ goto err_disable_clk;
}
if (i2s_pdata && i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
@@ -1350,13 +1360,9 @@ static int samsung_i2s_probe(struct platform_device *pdev)
goto err_disable_clk;
}
- ret = devm_snd_soc_register_component(&pri_dai->pdev->dev,
- &samsung_i2s_component,
- &pri_dai->i2s_dai_drv, 1);
- if (ret < 0)
- goto err_free_dai;
-
+ dev_set_drvdata(&pdev->dev, pri_dai);
+ pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
ret = i2s_register_clock_provider(pdev);
@@ -1364,9 +1370,6 @@ static int samsung_i2s_probe(struct platform_device *pdev)
return 0;
pm_runtime_disable(&pdev->dev);
-err_free_dai:
- if (sec_dai)
- i2s_free_sec_dai(sec_dai);
err_disable_clk:
clk_disable_unprepare(pri_dai->clk);
return ret;
@@ -1374,25 +1377,20 @@ err_disable_clk:
static int samsung_i2s_remove(struct platform_device *pdev)
{
- struct i2s_dai *i2s, *other;
+ struct i2s_dai *pri_dai, *sec_dai;
- i2s = dev_get_drvdata(&pdev->dev);
- other = get_other_dai(i2s);
+ pri_dai = dev_get_drvdata(&pdev->dev);
+ sec_dai = pri_dai->sec_dai;
- if (other) {
- other->pri_dai = NULL;
- other->sec_dai = NULL;
- } else {
- pm_runtime_disable(&pdev->dev);
- }
+ pri_dai->sec_dai = NULL;
+ sec_dai->pri_dai = NULL;
- if (!is_secondary(i2s)) {
- i2s_unregister_clock_provider(pdev);
- clk_disable_unprepare(i2s->clk);
- }
+ pm_runtime_get_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
- i2s->pri_dai = NULL;
- i2s->sec_dai = NULL;
+ i2s_unregister_clock_provider(pdev);
+ clk_disable_unprepare(pri_dai->clk);
+ pm_runtime_put_noidle(&pdev->dev);
return 0;
}
@@ -1454,49 +1452,37 @@ static const struct samsung_i2s_variant_regs i2sv5_i2s1_regs = {
};
static const struct samsung_i2s_dai_data i2sv3_dai_type = {
- .dai_type = TYPE_PRI,
.quirks = QUIRK_NO_MUXPSR,
.i2s_variant_regs = &i2sv3_regs,
};
static const struct samsung_i2s_dai_data i2sv5_dai_type = {
- .dai_type = TYPE_PRI,
.quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
QUIRK_SUPPORTS_IDMA,
.i2s_variant_regs = &i2sv3_regs,
};
static const struct samsung_i2s_dai_data i2sv6_dai_type = {
- .dai_type = TYPE_PRI,
.quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
QUIRK_SUPPORTS_TDM | QUIRK_SUPPORTS_IDMA,
.i2s_variant_regs = &i2sv6_regs,
};
static const struct samsung_i2s_dai_data i2sv7_dai_type = {
- .dai_type = TYPE_PRI,
.quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
QUIRK_SUPPORTS_TDM,
.i2s_variant_regs = &i2sv7_regs,
};
static const struct samsung_i2s_dai_data i2sv5_dai_type_i2s1 = {
- .dai_type = TYPE_PRI,
.quirks = QUIRK_PRI_6CHAN | QUIRK_NEED_RSTCLR,
.i2s_variant_regs = &i2sv5_i2s1_regs,
};
-static const struct samsung_i2s_dai_data samsung_dai_type_sec = {
- .dai_type = TYPE_SEC,
-};
-
static const struct platform_device_id samsung_i2s_driver_ids[] = {
{
.name = "samsung-i2s",
.driver_data = (kernel_ulong_t)&i2sv3_dai_type,
- }, {
- .name = "samsung-i2s-sec",
- .driver_data = (kernel_ulong_t)&samsung_dai_type_sec,
},
{},
};
@@ -1528,6 +1514,8 @@ MODULE_DEVICE_TABLE(of, exynos_i2s_match);
static const struct dev_pm_ops samsung_i2s_pm = {
SET_RUNTIME_PM_OPS(i2s_runtime_suspend,
i2s_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};
static struct platform_driver samsung_i2s_driver = {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.