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Commit 8f636c6a authored by Linus Torvalds's avatar Linus Torvalds
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Merge tag 'sound-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 

Pull sound fixes from Takashi Iwai:
 "Only undoes the Rockchip BCLK changes to address a regression"

* tag 'sound-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: rockchip-i2s: Undo BCLK pinctrl changes
  ASoC: rockchip: i2s: Fix NULL pointer dereference when pinctrl is not found
parents 85029503 cf33ce6f
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Showing with 31 additions and 129 deletions
sound/soc/rockchip/rockchip_i2s.c
View file @ 8f636c6a
......@@ -13,7 +13,6 @@
#include <linux/of_gpio.h>
#include <linux/of_device.h>
#include <linux/clk.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/spinlock.h>
......@@ -55,40 +54,8 @@ struct rk_i2s_dev {
const struct rk_i2s_pins *pins;
unsigned int bclk_ratio;
spinlock_t lock; /* tx/rx lock */
struct pinctrl *pinctrl;
struct pinctrl_state *bclk_on;
struct pinctrl_state *bclk_off;
};
static int i2s_pinctrl_select_bclk_on(struct rk_i2s_dev *i2s)
{
int ret = 0;
if (!IS_ERR(i2s->pinctrl) && !IS_ERR_OR_NULL(i2s->bclk_on))
ret = pinctrl_select_state(i2s->pinctrl,
i2s->bclk_on);
if (ret)
dev_err(i2s->dev, "bclk enable failed %d\n", ret);
return ret;
}
static int i2s_pinctrl_select_bclk_off(struct rk_i2s_dev *i2s)
{
int ret = 0;
if (!IS_ERR(i2s->pinctrl) && !IS_ERR_OR_NULL(i2s->bclk_off))
ret = pinctrl_select_state(i2s->pinctrl,
i2s->bclk_off);
if (ret)
dev_err(i2s->dev, "bclk disable failed %d\n", ret);
return ret;
}
static int i2s_runtime_suspend(struct device *dev)
{
struct rk_i2s_dev *i2s = dev_get_drvdata(dev);
......@@ -125,49 +92,38 @@ static inline struct rk_i2s_dev *to_info(struct snd_soc_dai *dai)
return snd_soc_dai_get_drvdata(dai);
}
static int rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
{
unsigned int val = 0;
int retry = 10;
int ret = 0;
spin_lock(&i2s->lock);
if (on) {
ret = regmap_update_bits(i2s->regmap, I2S_DMACR,
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE);
if (ret < 0)
goto end;
ret = regmap_update_bits(i2s->regmap, I2S_XFER,
regmap_update_bits(i2s->regmap, I2S_XFER,
I2S_XFER_TXS_START | I2S_XFER_RXS_START,
I2S_XFER_TXS_START | I2S_XFER_RXS_START);
if (ret < 0)
goto end;
i2s->tx_start = true;
} else {
i2s->tx_start = false;
ret = regmap_update_bits(i2s->regmap, I2S_DMACR,
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_DISABLE);
if (ret < 0)
goto end;
if (!i2s->rx_start) {
ret = regmap_update_bits(i2s->regmap, I2S_XFER,
regmap_update_bits(i2s->regmap, I2S_XFER,
I2S_XFER_TXS_START |
I2S_XFER_RXS_START,
I2S_XFER_TXS_STOP |
I2S_XFER_RXS_STOP);
if (ret < 0)
goto end;
udelay(150);
ret = regmap_update_bits(i2s->regmap, I2S_CLR,
regmap_update_bits(i2s->regmap, I2S_CLR,
I2S_CLR_TXC | I2S_CLR_RXC,
I2S_CLR_TXC | I2S_CLR_RXC);
if (ret < 0)
goto end;
regmap_read(i2s->regmap, I2S_CLR, &val);
......@@ -182,57 +138,44 @@ static int rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
}
}
}
end:
spin_unlock(&i2s->lock);
if (ret < 0)
dev_err(i2s->dev, "lrclk update failed\n");
return ret;
}
static int rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
{
unsigned int val = 0;
int retry = 10;
int ret = 0;
spin_lock(&i2s->lock);
if (on) {
ret = regmap_update_bits(i2s->regmap, I2S_DMACR,
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE);
if (ret < 0)
goto end;
ret = regmap_update_bits(i2s->regmap, I2S_XFER,
regmap_update_bits(i2s->regmap, I2S_XFER,
I2S_XFER_TXS_START | I2S_XFER_RXS_START,
I2S_XFER_TXS_START | I2S_XFER_RXS_START);
if (ret < 0)
goto end;
i2s->rx_start = true;
} else {
i2s->rx_start = false;
ret = regmap_update_bits(i2s->regmap, I2S_DMACR,
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_DISABLE);
if (ret < 0)
goto end;
if (!i2s->tx_start) {
ret = regmap_update_bits(i2s->regmap, I2S_XFER,
regmap_update_bits(i2s->regmap, I2S_XFER,
I2S_XFER_TXS_START |
I2S_XFER_RXS_START,
I2S_XFER_TXS_STOP |
I2S_XFER_RXS_STOP);
if (ret < 0)
goto end;
udelay(150);
ret = regmap_update_bits(i2s->regmap, I2S_CLR,
regmap_update_bits(i2s->regmap, I2S_CLR,
I2S_CLR_TXC | I2S_CLR_RXC,
I2S_CLR_TXC | I2S_CLR_RXC);
if (ret < 0)
goto end;
regmap_read(i2s->regmap, I2S_CLR, &val);
/* Should wait for clear operation to finish */
while (val) {
regmap_read(i2s->regmap, I2S_CLR, &val);
......@@ -244,12 +187,7 @@ static int rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
}
}
}
end:
spin_unlock(&i2s->lock);
if (ret < 0)
dev_err(i2s->dev, "lrclk update failed\n");
return ret;
}
static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
......@@ -487,26 +425,17 @@ static int rockchip_i2s_trigger(struct snd_pcm_substream *substream,
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
ret = rockchip_snd_rxctrl(i2s, 1);
rockchip_snd_rxctrl(i2s, 1);
else
ret = rockchip_snd_txctrl(i2s, 1);
/* Do not turn on bclk if lrclk open fails. */
if (ret < 0)
return ret;
i2s_pinctrl_select_bclk_on(i2s);
rockchip_snd_txctrl(i2s, 1);
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (!i2s->tx_start)
i2s_pinctrl_select_bclk_off(i2s);
ret = rockchip_snd_rxctrl(i2s, 0);
} else {
if (!i2s->rx_start)
i2s_pinctrl_select_bclk_off(i2s);
ret = rockchip_snd_txctrl(i2s, 0);
}
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
rockchip_snd_rxctrl(i2s, 0);
else
rockchip_snd_txctrl(i2s, 0);
break;
default:
ret = -EINVAL;
......@@ -807,33 +736,6 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
}
i2s->bclk_ratio = 64;
i2s->pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(i2s->pinctrl))
dev_err(&pdev->dev, "failed to find i2s pinctrl\n");
i2s->bclk_on = pinctrl_lookup_state(i2s->pinctrl,
"bclk_on");
if (IS_ERR_OR_NULL(i2s->bclk_on))
dev_err(&pdev->dev, "failed to find i2s default state\n");
else
dev_dbg(&pdev->dev, "find i2s bclk state\n");
i2s->bclk_off = pinctrl_lookup_state(i2s->pinctrl,
"bclk_off");
if (IS_ERR_OR_NULL(i2s->bclk_off))
dev_err(&pdev->dev, "failed to find i2s gpio state\n");
else
dev_dbg(&pdev->dev, "find i2s bclk_off state\n");
i2s_pinctrl_select_bclk_off(i2s);
i2s->playback_dma_data.addr = res->start + I2S_TXDR;
i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
i2s->playback_dma_data.maxburst = 4;
i2s->capture_dma_data.addr = res->start + I2S_RXDR;
i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
i2s->capture_dma_data.maxburst = 4;
dev_set_drvdata(&pdev->dev, i2s);
......
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