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path: root/sound/soc/au1x/psc-i2s.c
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Diffstat (limited to 'sound/soc/au1x/psc-i2s.c')
-rw-r--r--sound/soc/au1x/psc-i2s.c100
1 files changed, 50 insertions, 50 deletions
diff --git a/sound/soc/au1x/psc-i2s.c b/sound/soc/au1x/psc-i2s.c
index fe923a7bdc39..814beffc56f2 100644
--- a/sound/soc/au1x/psc-i2s.c
+++ b/sound/soc/au1x/psc-i2s.c
@@ -120,10 +120,10 @@ static int au1xpsc_i2s_hw_params(struct snd_pcm_substream *substream,
unsigned long stat;
/* check if the PSC is already streaming data */
- stat = au_readl(I2S_STAT(pscdata));
+ stat = __raw_readl(I2S_STAT(pscdata));
if (stat & (PSC_I2SSTAT_TB | PSC_I2SSTAT_RB)) {
/* reject parameters not currently set up in hardware */
- cfgbits = au_readl(I2S_CFG(pscdata));
+ cfgbits = __raw_readl(I2S_CFG(pscdata));
if ((PSC_I2SCFG_GET_LEN(cfgbits) != params->msbits) ||
(params_rate(params) != pscdata->rate))
return -EINVAL;
@@ -149,33 +149,33 @@ static int au1xpsc_i2s_configure(struct au1xpsc_audio_data *pscdata)
unsigned long tmo;
/* bring PSC out of sleep, and configure I2S unit */
- au_writel(PSC_CTRL_ENABLE, PSC_CTRL(pscdata));
- au_sync();
+ __raw_writel(PSC_CTRL_ENABLE, PSC_CTRL(pscdata));
+ wmb(); /* drain writebuffer */
tmo = 1000000;
- while (!(au_readl(I2S_STAT(pscdata)) & PSC_I2SSTAT_SR) && tmo)
+ while (!(__raw_readl(I2S_STAT(pscdata)) & PSC_I2SSTAT_SR) && tmo)
tmo--;
if (!tmo)
goto psc_err;
- au_writel(0, I2S_CFG(pscdata));
- au_sync();
- au_writel(pscdata->cfg | PSC_I2SCFG_DE_ENABLE, I2S_CFG(pscdata));
- au_sync();
+ __raw_writel(0, I2S_CFG(pscdata));
+ wmb(); /* drain writebuffer */
+ __raw_writel(pscdata->cfg | PSC_I2SCFG_DE_ENABLE, I2S_CFG(pscdata));
+ wmb(); /* drain writebuffer */
/* wait for I2S controller to become ready */
tmo = 1000000;
- while (!(au_readl(I2S_STAT(pscdata)) & PSC_I2SSTAT_DR) && tmo)
+ while (!(__raw_readl(I2S_STAT(pscdata)) & PSC_I2SSTAT_DR) && tmo)
tmo--;
if (tmo)
return 0;
psc_err:
- au_writel(0, I2S_CFG(pscdata));
- au_writel(PSC_CTRL_SUSPEND, PSC_CTRL(pscdata));
- au_sync();
+ __raw_writel(0, I2S_CFG(pscdata));
+ __raw_writel(PSC_CTRL_SUSPEND, PSC_CTRL(pscdata));
+ wmb(); /* drain writebuffer */
return -ETIMEDOUT;
}
@@ -187,26 +187,26 @@ static int au1xpsc_i2s_start(struct au1xpsc_audio_data *pscdata, int stype)
ret = 0;
/* if both TX and RX are idle, configure the PSC */
- stat = au_readl(I2S_STAT(pscdata));
+ stat = __raw_readl(I2S_STAT(pscdata));
if (!(stat & (PSC_I2SSTAT_TB | PSC_I2SSTAT_RB))) {
ret = au1xpsc_i2s_configure(pscdata);
if (ret)
goto out;
}
- au_writel(I2SPCR_CLRFIFO(stype), I2S_PCR(pscdata));
- au_sync();
- au_writel(I2SPCR_START(stype), I2S_PCR(pscdata));
- au_sync();
+ __raw_writel(I2SPCR_CLRFIFO(stype), I2S_PCR(pscdata));
+ wmb(); /* drain writebuffer */
+ __raw_writel(I2SPCR_START(stype), I2S_PCR(pscdata));
+ wmb(); /* drain writebuffer */
/* wait for start confirmation */
tmo = 1000000;
- while (!(au_readl(I2S_STAT(pscdata)) & I2SSTAT_BUSY(stype)) && tmo)
+ while (!(__raw_readl(I2S_STAT(pscdata)) & I2SSTAT_BUSY(stype)) && tmo)
tmo--;
if (!tmo) {
- au_writel(I2SPCR_STOP(stype), I2S_PCR(pscdata));
- au_sync();
+ __raw_writel(I2SPCR_STOP(stype), I2S_PCR(pscdata));
+ wmb(); /* drain writebuffer */
ret = -ETIMEDOUT;
}
out:
@@ -217,21 +217,21 @@ static int au1xpsc_i2s_stop(struct au1xpsc_audio_data *pscdata, int stype)
{
unsigned long tmo, stat;
- au_writel(I2SPCR_STOP(stype), I2S_PCR(pscdata));
- au_sync();
+ __raw_writel(I2SPCR_STOP(stype), I2S_PCR(pscdata));
+ wmb(); /* drain writebuffer */
/* wait for stop confirmation */
tmo = 1000000;
- while ((au_readl(I2S_STAT(pscdata)) & I2SSTAT_BUSY(stype)) && tmo)
+ while ((__raw_readl(I2S_STAT(pscdata)) & I2SSTAT_BUSY(stype)) && tmo)
tmo--;
/* if both TX and RX are idle, disable PSC */
- stat = au_readl(I2S_STAT(pscdata));
+ stat = __raw_readl(I2S_STAT(pscdata));
if (!(stat & (PSC_I2SSTAT_TB | PSC_I2SSTAT_RB))) {
- au_writel(0, I2S_CFG(pscdata));
- au_sync();
- au_writel(PSC_CTRL_SUSPEND, PSC_CTRL(pscdata));
- au_sync();
+ __raw_writel(0, I2S_CFG(pscdata));
+ wmb(); /* drain writebuffer */
+ __raw_writel(PSC_CTRL_SUSPEND, PSC_CTRL(pscdata));
+ wmb(); /* drain writebuffer */
}
return 0;
}
@@ -332,12 +332,12 @@ static int au1xpsc_i2s_drvprobe(struct platform_device *pdev)
/* preserve PSC clock source set up by platform (dev.platform_data
* is already occupied by soc layer)
*/
- sel = au_readl(PSC_SEL(wd)) & PSC_SEL_CLK_MASK;
- au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
- au_sync();
- au_writel(PSC_SEL_PS_I2SMODE | sel, PSC_SEL(wd));
- au_writel(0, I2S_CFG(wd));
- au_sync();
+ sel = __raw_readl(PSC_SEL(wd)) & PSC_SEL_CLK_MASK;
+ __raw_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
+ wmb(); /* drain writebuffer */
+ __raw_writel(PSC_SEL_PS_I2SMODE | sel, PSC_SEL(wd));
+ __raw_writel(0, I2S_CFG(wd));
+ wmb(); /* drain writebuffer */
/* preconfigure: set max rx/tx fifo depths */
wd->cfg |= PSC_I2SCFG_RT_FIFO8 | PSC_I2SCFG_TT_FIFO8;
@@ -364,10 +364,10 @@ static int au1xpsc_i2s_drvremove(struct platform_device *pdev)
snd_soc_unregister_component(&pdev->dev);
- au_writel(0, I2S_CFG(wd));
- au_sync();
- au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
- au_sync();
+ __raw_writel(0, I2S_CFG(wd));
+ wmb(); /* drain writebuffer */
+ __raw_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
+ wmb(); /* drain writebuffer */
return 0;
}
@@ -378,12 +378,12 @@ static int au1xpsc_i2s_drvsuspend(struct device *dev)
struct au1xpsc_audio_data *wd = dev_get_drvdata(dev);
/* save interesting register and disable PSC */
- wd->pm[0] = au_readl(PSC_SEL(wd));
+ wd->pm[0] = __raw_readl(PSC_SEL(wd));
- au_writel(0, I2S_CFG(wd));
- au_sync();
- au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
- au_sync();
+ __raw_writel(0, I2S_CFG(wd));
+ wmb(); /* drain writebuffer */
+ __raw_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
+ wmb(); /* drain writebuffer */
return 0;
}
@@ -393,12 +393,12 @@ static int au1xpsc_i2s_drvresume(struct device *dev)
struct au1xpsc_audio_data *wd = dev_get_drvdata(dev);
/* select I2S mode and PSC clock */
- au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
- au_sync();
- au_writel(0, PSC_SEL(wd));
- au_sync();
- au_writel(wd->pm[0], PSC_SEL(wd));
- au_sync();
+ __raw_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
+ wmb(); /* drain writebuffer */
+ __raw_writel(0, PSC_SEL(wd));
+ wmb(); /* drain writebuffer */
+ __raw_writel(wd->pm[0], PSC_SEL(wd));
+ wmb(); /* drain writebuffer */
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 03:12:41 +0000