If we only clear the tx/rx state when both are disabled it is not
possible to start/stop one multiple times while the other is running.
Since the two are independently controlled, treat them as such and
remove the false dependency between capture and playback.
Signed-off-by: John Keeping <[email protected]>
---
sound/soc/rockchip/rockchip_i2s.c | 72 +++++++++++++++++----------------------
1 file changed, 32 insertions(+), 40 deletions(-)
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 83b1b9c..acc6225 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -82,8 +82,8 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE);
regmap_update_bits(i2s->regmap, I2S_XFER,
- I2S_XFER_TXS_START | I2S_XFER_RXS_START,
- I2S_XFER_TXS_START | I2S_XFER_RXS_START);
+ I2S_XFER_TXS_START,
+ I2S_XFER_TXS_START);
i2s->tx_start = true;
} else {
@@ -92,27 +92,23 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_DISABLE);
- if (!i2s->rx_start) {
- regmap_update_bits(i2s->regmap, I2S_XFER,
- I2S_XFER_TXS_START |
- I2S_XFER_RXS_START,
- I2S_XFER_TXS_STOP |
- I2S_XFER_RXS_STOP);
+ regmap_update_bits(i2s->regmap, I2S_XFER,
+ I2S_XFER_TXS_START,
+ I2S_XFER_TXS_STOP);
- regmap_update_bits(i2s->regmap, I2S_CLR,
- I2S_CLR_TXC | I2S_CLR_RXC,
- I2S_CLR_TXC | I2S_CLR_RXC);
+ regmap_update_bits(i2s->regmap, I2S_CLR,
+ I2S_CLR_TXC,
+ I2S_CLR_TXC);
- regmap_read(i2s->regmap, I2S_CLR, &val);
+ regmap_read(i2s->regmap, I2S_CLR, &val);
- /* Should wait for clear operation to finish */
- while (val) {
- regmap_read(i2s->regmap, I2S_CLR, &val);
- retry--;
- if (!retry) {
- dev_warn(i2s->dev, "fail to clear\n");
- break;
- }
+ /* Should wait for clear operation to finish */
+ while (val & I2S_CLR_TXC) {
+ regmap_read(i2s->regmap, I2S_CLR, &val);
+ retry--;
+ if (!retry) {
+ dev_warn(i2s->dev, "fail to clear\n");
+ break;
}
}
}
@@ -128,8 +124,8 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE);
regmap_update_bits(i2s->regmap, I2S_XFER,
- I2S_XFER_TXS_START | I2S_XFER_RXS_START,
- I2S_XFER_TXS_START | I2S_XFER_RXS_START);
+ I2S_XFER_RXS_START,
+ I2S_XFER_RXS_START);
i2s->rx_start = true;
} else {
@@ -138,27 +134,23 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_DISABLE);
- if (!i2s->tx_start) {
- regmap_update_bits(i2s->regmap, I2S_XFER,
- I2S_XFER_TXS_START |
- I2S_XFER_RXS_START,
- I2S_XFER_TXS_STOP |
- I2S_XFER_RXS_STOP);
+ regmap_update_bits(i2s->regmap, I2S_XFER,
+ I2S_XFER_RXS_START,
+ I2S_XFER_RXS_STOP);
- regmap_update_bits(i2s->regmap, I2S_CLR,
- I2S_CLR_TXC | I2S_CLR_RXC,
- I2S_CLR_TXC | I2S_CLR_RXC);
+ regmap_update_bits(i2s->regmap, I2S_CLR,
+ I2S_CLR_RXC,
+ I2S_CLR_RXC);
- regmap_read(i2s->regmap, I2S_CLR, &val);
+ regmap_read(i2s->regmap, I2S_CLR, &val);
- /* Should wait for clear operation to finish */
- while (val) {
- regmap_read(i2s->regmap, I2S_CLR, &val);
- retry--;
- if (!retry) {
- dev_warn(i2s->dev, "fail to clear\n");
- break;
- }
+ /* Should wait for clear operation to finish */
+ while (val & I2S_CLR_RXC) {
+ regmap_read(i2s->regmap, I2S_CLR, &val);
+ retry--;
+ if (!retry) {
+ dev_warn(i2s->dev, "fail to clear\n");
+ break;
}
}
}
--
2.6.3.462.gbe2c914
The previous commit removed the only use of these variables.
Signed-off-by: John Keeping <[email protected]>
---
sound/soc/rockchip/rockchip_i2s.c | 15 ---------------
1 file changed, 15 deletions(-)
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index acc6225..8b0a588 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -34,13 +34,6 @@ struct rk_i2s_dev {
struct regmap *regmap;
-/*
- * Used to indicate the tx/rx status.
- * I2S controller hopes to start the tx and rx together,
- * also to stop them when they are both try to stop.
-*/
- bool tx_start;
- bool rx_start;
bool is_master_mode;
};
@@ -84,11 +77,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
regmap_update_bits(i2s->regmap, I2S_XFER,
I2S_XFER_TXS_START,
I2S_XFER_TXS_START);
-
- i2s->tx_start = true;
} else {
- i2s->tx_start = false;
-
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_DISABLE);
@@ -126,11 +115,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
regmap_update_bits(i2s->regmap, I2S_XFER,
I2S_XFER_RXS_START,
I2S_XFER_RXS_START);
-
- i2s->rx_start = true;
} else {
- i2s->rx_start = false;
-
regmap_update_bits(i2s->regmap, I2S_DMACR,
I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_DISABLE);
--
2.6.3.462.gbe2c914
Hi John,
2015-12-09 11:32 GMT+01:00 John Keeping <[email protected]>:
> If we only clear the tx/rx state when both are disabled it is not
> possible to start/stop one multiple times while the other is running.
> Since the two are independently controlled, treat them as such and
> remove the false dependency between capture and playback.
>
> Signed-off-by: John Keeping <[email protected]>
> ---
> sound/soc/rockchip/rockchip_i2s.c | 72 +++++++++++++++++----------------------
> 1 file changed, 32 insertions(+), 40 deletions(-)
>
> diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
> index 83b1b9c..acc6225 100644
> --- a/sound/soc/rockchip/rockchip_i2s.c
> +++ b/sound/soc/rockchip/rockchip_i2s.c
> @@ -82,8 +82,8 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
> I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE);
>
> regmap_update_bits(i2s->regmap, I2S_XFER,
> - I2S_XFER_TXS_START | I2S_XFER_RXS_START,
> - I2S_XFER_TXS_START | I2S_XFER_RXS_START);
> + I2S_XFER_TXS_START,
> + I2S_XFER_TXS_START);
>
> i2s->tx_start = true;
> } else {
> @@ -92,27 +92,23 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
> regmap_update_bits(i2s->regmap, I2S_DMACR,
> I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_DISABLE);
>
> - if (!i2s->rx_start) {
> - regmap_update_bits(i2s->regmap, I2S_XFER,
> - I2S_XFER_TXS_START |
> - I2S_XFER_RXS_START,
> - I2S_XFER_TXS_STOP |
> - I2S_XFER_RXS_STOP);
> + regmap_update_bits(i2s->regmap, I2S_XFER,
> + I2S_XFER_TXS_START,
> + I2S_XFER_TXS_STOP);
>
> - regmap_update_bits(i2s->regmap, I2S_CLR,
> - I2S_CLR_TXC | I2S_CLR_RXC,
> - I2S_CLR_TXC | I2S_CLR_RXC);
> + regmap_update_bits(i2s->regmap, I2S_CLR,
> + I2S_CLR_TXC,
> + I2S_CLR_TXC);
>
> - regmap_read(i2s->regmap, I2S_CLR, &val);
> + regmap_read(i2s->regmap, I2S_CLR, &val);
>
> - /* Should wait for clear operation to finish */
> - while (val) {
> - regmap_read(i2s->regmap, I2S_CLR, &val);
> - retry--;
> - if (!retry) {
> - dev_warn(i2s->dev, "fail to clear\n");
> - break;
> - }
> + /* Should wait for clear operation to finish */
> + while (val & I2S_CLR_TXC) {
> + regmap_read(i2s->regmap, I2S_CLR, &val);
> + retry--;
> + if (!retry) {
> + dev_warn(i2s->dev, "fail to clear\n");
> + break;
> }
> }
> }
> @@ -128,8 +124,8 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
> I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE);
>
> regmap_update_bits(i2s->regmap, I2S_XFER,
> - I2S_XFER_TXS_START | I2S_XFER_RXS_START,
> - I2S_XFER_TXS_START | I2S_XFER_RXS_START);
> + I2S_XFER_RXS_START,
> + I2S_XFER_RXS_START);
>
> i2s->rx_start = true;
> } else {
> @@ -138,27 +134,23 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
> regmap_update_bits(i2s->regmap, I2S_DMACR,
> I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_DISABLE);
>
> - if (!i2s->tx_start) {
> - regmap_update_bits(i2s->regmap, I2S_XFER,
> - I2S_XFER_TXS_START |
> - I2S_XFER_RXS_START,
> - I2S_XFER_TXS_STOP |
> - I2S_XFER_RXS_STOP);
> + regmap_update_bits(i2s->regmap, I2S_XFER,
> + I2S_XFER_RXS_START,
> + I2S_XFER_RXS_STOP);
>
> - regmap_update_bits(i2s->regmap, I2S_CLR,
> - I2S_CLR_TXC | I2S_CLR_RXC,
> - I2S_CLR_TXC | I2S_CLR_RXC);
> + regmap_update_bits(i2s->regmap, I2S_CLR,
> + I2S_CLR_RXC,
> + I2S_CLR_RXC);
>
> - regmap_read(i2s->regmap, I2S_CLR, &val);
> + regmap_read(i2s->regmap, I2S_CLR, &val);
>
> - /* Should wait for clear operation to finish */
> - while (val) {
> - regmap_read(i2s->regmap, I2S_CLR, &val);
> - retry--;
> - if (!retry) {
> - dev_warn(i2s->dev, "fail to clear\n");
> - break;
> - }
> + /* Should wait for clear operation to finish */
> + while (val & I2S_CLR_RXC) {
> + regmap_read(i2s->regmap, I2S_CLR, &val);
> + retry--;
> + if (!retry) {
> + dev_warn(i2s->dev, "fail to clear\n");
> + break;
> }
> }
> }
> --
> 2.6.3.462.gbe2c914
>
> --
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> the body of a message to [email protected]
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> Please read the FAQ at http://www.tux.org/lkml/
Using my Veyron Jerry Chromebook wiht latest kernel I found that the
speakers doesn't work. Bisect points to this patch as the offending
commit. However your changes looks reasonable the fact is that
reverting the patch makes the audio work again on my device. I need to
dig a bit more into the issue, but meanwhile, any idea on what is
happening ? Can I ask which device did you test?
PS: Sorry for the noise if you received the email twice.
Best regards,
Enric
Hi Enric,
On Fri, Apr 29, 2016 at 04:59:27PM +0200, Enric Balletbo Serra wrote:
> 2015-12-09 11:32 GMT+01:00 John Keeping <[email protected]>:
> > If we only clear the tx/rx state when both are disabled it is not
> > possible to start/stop one multiple times while the other is running.
> > Since the two are independently controlled, treat them as such and
> > remove the false dependency between capture and playback.
> >
> > Signed-off-by: John Keeping <[email protected]>
> > ---
> > sound/soc/rockchip/rockchip_i2s.c | 72 +++++++++++++++++----------------------
> > 1 file changed, 32 insertions(+), 40 deletions(-)
> >
> > diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
> > index 83b1b9c..acc6225 100644
> > --- a/sound/soc/rockchip/rockchip_i2s.c
> > +++ b/sound/soc/rockchip/rockchip_i2s.c
> > @@ -82,8 +82,8 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
> > I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE);
> >
> > regmap_update_bits(i2s->regmap, I2S_XFER,
> > - I2S_XFER_TXS_START | I2S_XFER_RXS_START,
> > - I2S_XFER_TXS_START | I2S_XFER_RXS_START);
> > + I2S_XFER_TXS_START,
> > + I2S_XFER_TXS_START);
> >
> > i2s->tx_start = true;
> > } else {
> > @@ -92,27 +92,23 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
> > regmap_update_bits(i2s->regmap, I2S_DMACR,
> > I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_DISABLE);
> >
> > - if (!i2s->rx_start) {
> > - regmap_update_bits(i2s->regmap, I2S_XFER,
> > - I2S_XFER_TXS_START |
> > - I2S_XFER_RXS_START,
> > - I2S_XFER_TXS_STOP |
> > - I2S_XFER_RXS_STOP);
> > + regmap_update_bits(i2s->regmap, I2S_XFER,
> > + I2S_XFER_TXS_START,
> > + I2S_XFER_TXS_STOP);
> >
> > - regmap_update_bits(i2s->regmap, I2S_CLR,
> > - I2S_CLR_TXC | I2S_CLR_RXC,
> > - I2S_CLR_TXC | I2S_CLR_RXC);
> > + regmap_update_bits(i2s->regmap, I2S_CLR,
> > + I2S_CLR_TXC,
> > + I2S_CLR_TXC);
> >
> > - regmap_read(i2s->regmap, I2S_CLR, &val);
> > + regmap_read(i2s->regmap, I2S_CLR, &val);
> >
> > - /* Should wait for clear operation to finish */
> > - while (val) {
> > - regmap_read(i2s->regmap, I2S_CLR, &val);
> > - retry--;
> > - if (!retry) {
> > - dev_warn(i2s->dev, "fail to clear\n");
> > - break;
> > - }
> > + /* Should wait for clear operation to finish */
> > + while (val & I2S_CLR_TXC) {
> > + regmap_read(i2s->regmap, I2S_CLR, &val);
> > + retry--;
> > + if (!retry) {
> > + dev_warn(i2s->dev, "fail to clear\n");
> > + break;
> > }
> > }
> > }
> > @@ -128,8 +124,8 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
> > I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE);
> >
> > regmap_update_bits(i2s->regmap, I2S_XFER,
> > - I2S_XFER_TXS_START | I2S_XFER_RXS_START,
> > - I2S_XFER_TXS_START | I2S_XFER_RXS_START);
> > + I2S_XFER_RXS_START,
> > + I2S_XFER_RXS_START);
> >
> > i2s->rx_start = true;
> > } else {
> > @@ -138,27 +134,23 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
> > regmap_update_bits(i2s->regmap, I2S_DMACR,
> > I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_DISABLE);
> >
> > - if (!i2s->tx_start) {
> > - regmap_update_bits(i2s->regmap, I2S_XFER,
> > - I2S_XFER_TXS_START |
> > - I2S_XFER_RXS_START,
> > - I2S_XFER_TXS_STOP |
> > - I2S_XFER_RXS_STOP);
> > + regmap_update_bits(i2s->regmap, I2S_XFER,
> > + I2S_XFER_RXS_START,
> > + I2S_XFER_RXS_STOP);
> >
> > - regmap_update_bits(i2s->regmap, I2S_CLR,
> > - I2S_CLR_TXC | I2S_CLR_RXC,
> > - I2S_CLR_TXC | I2S_CLR_RXC);
> > + regmap_update_bits(i2s->regmap, I2S_CLR,
> > + I2S_CLR_RXC,
> > + I2S_CLR_RXC);
> >
> > - regmap_read(i2s->regmap, I2S_CLR, &val);
> > + regmap_read(i2s->regmap, I2S_CLR, &val);
> >
> > - /* Should wait for clear operation to finish */
> > - while (val) {
> > - regmap_read(i2s->regmap, I2S_CLR, &val);
> > - retry--;
> > - if (!retry) {
> > - dev_warn(i2s->dev, "fail to clear\n");
> > - break;
> > - }
> > + /* Should wait for clear operation to finish */
> > + while (val & I2S_CLR_RXC) {
> > + regmap_read(i2s->regmap, I2S_CLR, &val);
> > + retry--;
> > + if (!retry) {
> > + dev_warn(i2s->dev, "fail to clear\n");
> > + break;
> > }
> > }
> > }
> > --
> > 2.6.3.462.gbe2c914
>
> Using my Veyron Jerry Chromebook wiht latest kernel I found that the
> speakers doesn't work. Bisect points to this patch as the offending
> commit. However your changes looks reasonable the fact is that
> reverting the patch makes the audio work again on my device. I need to
> dig a bit more into the issue, but meanwhile, any idea on what is
> happening ? Can I ask which device did you test?
I tested this on a Radxa Rock2 square. This change fixed an issue I
found when running separate processes for playback and recording (I was
testing with arecord and speaker-test IIRC) but I don't think that
should be relevant. I just read through the patch again and I can't see
anything obviously wrong so I'm afraid I don't have any idea what's
causing the problem you're seeing.
John