[PATCH v2 05/21] ASoC: samsung: i2s: Move opclk data to common driver data structure
From: Sylwester Nawrocki
Date: Tue Feb 12 2019 - 13:05:03 EST
The clock for generating I2S signals is also common for both CPU DAIs
so move it to the driver's common data structure.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Acked-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
sound/soc/samsung/i2s.c | 70 +++++++++++++++++++----------------------
1 file changed, 33 insertions(+), 37 deletions(-)
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 159c19fdb662..d8414d781f83 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -62,8 +62,6 @@ struct i2s_dai {
struct platform_device *pdev;
/* Memory mapped SFR region */
void __iomem *addr;
- /* Rate of RCLK source clock */
- unsigned long rclk_srcrate;
/* Frame Clock */
unsigned frmclk;
/*
@@ -71,8 +69,6 @@ struct i2s_dai {
* 0 indicates CPU driver is free to choose any value.
*/
unsigned rfs, bfs;
- /* Clock for generating I2S signals */
- struct clk *op_clk;
/* Pointer to the Primary_Fifo if this is Sec_Fifo, NULL otherwise */
struct i2s_dai *pri_dai;
/* Pointer to the Secondary_Fifo if it has one, NULL otherwise */
@@ -118,6 +114,12 @@ struct samsung_i2s_priv {
/* The I2S controller's core clock */
struct clk *clk;
+ /* Clock for generating I2S signals */
+ struct clk *op_clk;
+
+ /* Rate of RCLK source clock */
+ unsigned long rclk_srcrate;
+
/* The clock provider's data */
struct clk *clk_table[3];
struct clk_onecell_data clk_data;
@@ -496,9 +498,10 @@ static inline void i2s_fifo(struct i2s_dai *i2s, u32 flush)
writel(readl(fic) & ~flush, fic);
}
-static int i2s_set_sysclk(struct snd_soc_dai *dai,
- int clk_id, unsigned int rfs, int dir)
+static int i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int rfs,
+ int dir)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
struct i2s_dai *other = get_other_dai(i2s);
const struct samsung_i2s_variant_regs *i2s_regs = i2s->variant_regs;
@@ -554,44 +557,39 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
clk_id = 1;
if (!any_active(i2s)) {
- if (i2s->op_clk && !IS_ERR(i2s->op_clk)) {
+ if (priv->op_clk && !IS_ERR(priv->op_clk)) {
if ((clk_id && !(mod & rsrc_mask)) ||
(!clk_id && (mod & rsrc_mask))) {
- clk_disable_unprepare(i2s->op_clk);
- clk_put(i2s->op_clk);
+ clk_disable_unprepare(priv->op_clk);
+ clk_put(priv->op_clk);
} else {
- i2s->rclk_srcrate =
- clk_get_rate(i2s->op_clk);
+ priv->rclk_srcrate =
+ clk_get_rate(priv->op_clk);
goto done;
}
}
if (clk_id)
- i2s->op_clk = clk_get(&i2s->pdev->dev,
+ priv->op_clk = clk_get(&i2s->pdev->dev,
"i2s_opclk1");
else
- i2s->op_clk = clk_get(&i2s->pdev->dev,
+ priv->op_clk = clk_get(&i2s->pdev->dev,
"i2s_opclk0");
- if (WARN_ON(IS_ERR(i2s->op_clk))) {
- ret = PTR_ERR(i2s->op_clk);
- i2s->op_clk = NULL;
+ if (WARN_ON(IS_ERR(priv->op_clk))) {
+ ret = PTR_ERR(priv->op_clk);
+ priv->op_clk = NULL;
goto err;
}
- ret = clk_prepare_enable(i2s->op_clk);
+ ret = clk_prepare_enable(priv->op_clk);
if (ret) {
- clk_put(i2s->op_clk);
- i2s->op_clk = NULL;
+ clk_put(priv->op_clk);
+ priv->op_clk = NULL;
goto err;
}
- i2s->rclk_srcrate = clk_get_rate(i2s->op_clk);
+ priv->rclk_srcrate = clk_get_rate(priv->op_clk);
- /* Over-ride the other's */
- if (other) {
- other->op_clk = i2s->op_clk;
- other->rclk_srcrate = i2s->rclk_srcrate;
- }
} else if ((!clk_id && (mod & rsrc_mask))
|| (clk_id && !(mod & rsrc_mask))) {
dev_err(&i2s->pdev->dev,
@@ -600,8 +598,6 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
goto err;
} else {
/* Call can't be on the active DAI */
- i2s->op_clk = other->op_clk;
- i2s->rclk_srcrate = other->rclk_srcrate;
goto done;
}
@@ -689,7 +685,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
* CLK_I2S_RCLK_SRC clock is not exposed so we ensure any
* clock configuration assigned in DT is not overwritten.
*/
- if (i2s->rclk_srcrate == 0 && priv->clk_data.clks == NULL)
+ if (priv->rclk_srcrate == 0 && priv->clk_data.clks == NULL)
i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0,
0, SND_SOC_CLOCK_IN);
break;
@@ -814,7 +810,7 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
rclksrc = priv->clk_table[CLK_I2S_RCLK_SRC];
if (rclksrc && !IS_ERR(rclksrc))
- i2s->rclk_srcrate = clk_get_rate(rclksrc);
+ priv->rclk_srcrate = clk_get_rate(rclksrc);
return 0;
}
@@ -872,6 +868,7 @@ static void i2s_shutdown(struct snd_pcm_substream *substream,
static int config_setup(struct i2s_dai *i2s)
{
+ struct samsung_i2s_priv *priv = i2s->priv;
struct i2s_dai *other = get_other_dai(i2s);
unsigned rfs, bfs, blc;
u32 psr;
@@ -920,11 +917,11 @@ static int config_setup(struct i2s_dai *i2s)
return 0;
if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
- psr = i2s->rclk_srcrate / i2s->frmclk / rfs;
+ psr = priv->rclk_srcrate / i2s->frmclk / rfs;
writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR);
dev_dbg(&i2s->pdev->dev,
"RCLK_SRC=%luHz PSR=%u, RCLK=%dfs, BCLK=%dfs\n",
- i2s->rclk_srcrate, psr, rfs, bfs);
+ priv->rclk_srcrate, psr, rfs, bfs);
}
return 0;
@@ -1067,7 +1064,6 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
/* Reset any constraint on RFS and BFS */
i2s->rfs = 0;
i2s->bfs = 0;
- i2s->rclk_srcrate = 0;
spin_lock_irqsave(i2s->lock, flags);
i2s_txctrl(i2s, 0);
@@ -1213,8 +1209,8 @@ static int i2s_runtime_suspend(struct device *dev)
i2s->suspend_i2scon = readl(i2s->addr + I2SCON);
i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
- if (i2s->op_clk)
- clk_disable_unprepare(i2s->op_clk);
+ if (priv->op_clk)
+ clk_disable_unprepare(priv->op_clk);
clk_disable_unprepare(priv->clk);
return 0;
@@ -1230,8 +1226,8 @@ static int i2s_runtime_resume(struct device *dev)
if (ret)
return ret;
- if (i2s->op_clk) {
- ret = clk_prepare_enable(i2s->op_clk);
+ if (priv->op_clk) {
+ ret = clk_prepare_enable(priv->op_clk);
if (ret) {
clk_disable_unprepare(priv->clk);
return ret;
@@ -1514,7 +1510,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)
if (ret < 0)
goto err_disable_pm;
- pri_dai->op_clk = clk_get_parent(priv->clk_table[CLK_I2S_RCLK_SRC]);
+ priv->op_clk = clk_get_parent(priv->clk_table[CLK_I2S_RCLK_SRC]);
return 0;
--
2.20.1