2020-10-30 14:48:49

by Clément Péron

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Subject: [PATCH v10 01/15] ASoC: sun4i-i2s: Fix lrck_period computation for I2S justified mode

Left and Right justified mode are computed using the same formula
as DSP_A and DSP_B mode.
Which is wrong and the user manual explicitly says:

LRCK_PERDIOD:
PCM Mode: Number of BCLKs within (Left + Right) channel width.
I2S/Left-Justified/Right-Justified Mode: Number of BCLKs within each
individual channel width(Left or Right)

Fix this by using the same formula as the I2S mode.

Fixes: 7ae7834ec446 ("ASoC: sun4i-i2s: Add support for DSP formats")
Signed-off-by: Clément Péron <[email protected]>
---
sound/soc/sunxi/sun4i-i2s.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index f23ff29e7c1d..a994b5cf87b3 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -450,11 +450,11 @@ static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s,
switch (i2s->format & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
- case SND_SOC_DAIFMT_LEFT_J:
- case SND_SOC_DAIFMT_RIGHT_J:
lrck_period = params_physical_width(params) * slots;
break;

+ case SND_SOC_DAIFMT_LEFT_J:
+ case SND_SOC_DAIFMT_RIGHT_J:
case SND_SOC_DAIFMT_I2S:
lrck_period = params_physical_width(params);
break;
--
2.25.1


2020-10-30 16:13:37

by Maxime Ripard

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Subject: Re: [PATCH v10 01/15] ASoC: sun4i-i2s: Fix lrck_period computation for I2S justified mode

On Fri, Oct 30, 2020 at 03:46:34PM +0100, Cl?ment P?ron wrote:
> Left and Right justified mode are computed using the same formula
> as DSP_A and DSP_B mode.
> Which is wrong and the user manual explicitly says:
>
> LRCK_PERDIOD:
> PCM Mode: Number of BCLKs within (Left + Right) channel width.
> I2S/Left-Justified/Right-Justified Mode: Number of BCLKs within each
> individual channel width(Left or Right)
>
> Fix this by using the same formula as the I2S mode.
>
> Fixes: 7ae7834ec446 ("ASoC: sun4i-i2s: Add support for DSP formats")
> Signed-off-by: Cl?ment P?ron <[email protected]>

Acked-by: Maxime Ripard <[email protected]>
Thanks!
Maxime


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2020-10-30 19:11:11

by Clément Péron

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Subject: Re: [PATCH v10 01/15] ASoC: sun4i-i2s: Fix lrck_period computation for I2S justified mode

Hi Maxime,

On Fri, 30 Oct 2020 at 17:11, Maxime Ripard <[email protected]> wrote:
>
> On Fri, Oct 30, 2020 at 03:46:34PM +0100, Clément Péron wrote:
> > Left and Right justified mode are computed using the same formula
> > as DSP_A and DSP_B mode.
> > Which is wrong and the user manual explicitly says:
> >
> > LRCK_PERDIOD:
> > PCM Mode: Number of BCLKs within (Left + Right) channel width.
> > I2S/Left-Justified/Right-Justified Mode: Number of BCLKs within each
> > individual channel width(Left or Right)
> >
> > Fix this by using the same formula as the I2S mode.
> >
> > Fixes: 7ae7834ec446 ("ASoC: sun4i-i2s: Add support for DSP formats")
> > Signed-off-by: Clément Péron <[email protected]>
>
> Acked-by: Maxime Ripard <[email protected]>
Thanks for the ACK

just noticed that the case was not properly sorted.

Do you agree that sorting like this is better ?
case SND_SOC_DAIFMT_I2S:
+ case SND_SOC_DAIFMT_LEFT_J:
+ case SND_SOC_DAIFMT_RIGHT_J:

If I have to push a new series I will fix it

Regards,
Clement

> Thanks!
> Maxime