diff mbox series

[v6,1/7] ASoC: sun4i-i2s: Move channel select offset

Message ID 20191016070740.121435-2-codekipper@gmail.com (mailing list archive)
State New, archived
Headers show
Series ASoC: sun4i-i2s: Updates to the driver | expand

Commit Message

Code Kipper Oct. 16, 2019, 7:07 a.m. UTC 
From: Marcus Cooper <codekipper@gmail.com>

On the newer SoCs the offset is used to set the mode of the
connection. As it is to be used elsewhere then it makes sense
to move it to the main structure.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
---
 sound/soc/sunxi/sun4i-i2s.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

Comments

Maxime Ripard Oct. 16, 2019, 8:04 a.m. UTC | #1 
On Wed, Oct 16, 2019 at 09:07:34AM +0200, codekipper@gmail.com wrote:
> From: Marcus Cooper <codekipper@gmail.com>
>
> On the newer SoCs the offset is used to set the mode of the
> connection. As it is to be used elsewhere then it makes sense
> to move it to the main structure.

Elsewhere where, and to do what?

Maxime
Code Kipper Oct. 16, 2019, 8:41 a.m. UTC | #2 
On Wed, 16 Oct 2019 at 10:04, Maxime Ripard <mripard@kernel.org> wrote:
>
> On Wed, Oct 16, 2019 at 09:07:34AM +0200, codekipper@gmail.com wrote:
> > From: Marcus Cooper <codekipper@gmail.com>
> >
> > On the newer SoCs the offset is used to set the mode of the
> > connection. As it is to be used elsewhere then it makes sense
> > to move it to the main structure.
>
> Elsewhere where, and to do what?
Thanks...How does this sound?

As it is to be used to set the same offset for each TX data channel in use
during multi-channel audio then let's move it to the main structure.

BR,
CK
>
> Maxime
Maxime Ripard Oct. 16, 2019, 2:51 p.m. UTC | #3 
On Wed, Oct 16, 2019 at 10:41:31AM +0200, Code Kipper wrote:
> On Wed, 16 Oct 2019 at 10:04, Maxime Ripard <mripard@kernel.org> wrote:
> >
> > On Wed, Oct 16, 2019 at 09:07:34AM +0200, codekipper@gmail.com wrote:
> > > From: Marcus Cooper <codekipper@gmail.com>
> > >
> > > On the newer SoCs the offset is used to set the mode of the
> > > connection. As it is to be used elsewhere then it makes sense
> > > to move it to the main structure.
> >
> > Elsewhere where, and to do what?
> Thanks...How does this sound?
>
> As it is to be used to set the same offset for each TX data channel in use
> during multi-channel audio then let's move it to the main structure.

That still doesn't explain why you want to move it to the main
structure. It's there, it's calculated already, and can be used during
multi-channel audio if you set it up in the same function. What you
need to explain is why you can't do it in the same function.

Maxime
diff mbox series

Patch

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index d0a8d5810c0a..f1a80973c450 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -156,7 +156,7 @@  struct sun4i_i2s_quirks {
 	s8	(*get_wss)(const struct sun4i_i2s *, int);
 	int	(*set_chan_cfg)(const struct sun4i_i2s *,
 				const struct snd_pcm_hw_params *);
-	int	(*set_fmt)(const struct sun4i_i2s *, unsigned int);
+	int	(*set_fmt)(struct sun4i_i2s *, unsigned int);
 };
 
 struct sun4i_i2s {
@@ -169,6 +169,7 @@  struct sun4i_i2s {
 	unsigned int	mclk_freq;
 	unsigned int	slots;
 	unsigned int	slot_width;
+	unsigned int	offset;
 
 	struct snd_dmaengine_dai_dma_data	capture_dma_data;
 	struct snd_dmaengine_dai_dma_data	playback_dma_data;
@@ -516,7 +517,7 @@  static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
 				      slots, slot_width);
 }
 
-static int sun4i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s,
+static int sun4i_i2s_set_soc_fmt(struct sun4i_i2s *i2s,
 				 unsigned int fmt)
 {
 	u32 val;
@@ -589,11 +590,10 @@  static int sun4i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s,
 	return 0;
 }
 
-static int sun8i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s,
+static int sun8i_i2s_set_soc_fmt(struct sun4i_i2s *i2s,
 				 unsigned int fmt)
 {
 	u32 mode, val;
-	u8 offset;
 
 	/*
 	 * DAI clock polarity
@@ -632,27 +632,27 @@  static int sun8i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s,
 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_DSP_A:
 		mode = SUN8I_I2S_CTRL_MODE_PCM;
-		offset = 1;
+		i2s->offset = 1;
 		break;
 
 	case SND_SOC_DAIFMT_DSP_B:
 		mode = SUN8I_I2S_CTRL_MODE_PCM;
-		offset = 0;
+		i2s->offset = 0;
 		break;
 
 	case SND_SOC_DAIFMT_I2S:
 		mode = SUN8I_I2S_CTRL_MODE_LEFT;
-		offset = 1;
+		i2s->offset = 1;
 		break;
 
 	case SND_SOC_DAIFMT_LEFT_J:
 		mode = SUN8I_I2S_CTRL_MODE_LEFT;
-		offset = 0;
+		i2s->offset = 0;
 		break;
 
 	case SND_SOC_DAIFMT_RIGHT_J:
 		mode = SUN8I_I2S_CTRL_MODE_RIGHT;
-		offset = 0;
+		i2s->offset = 0;
 		break;
 
 	default:
@@ -663,10 +663,10 @@  static int sun8i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s,
 			   SUN8I_I2S_CTRL_MODE_MASK, mode);
 	regmap_update_bits(i2s->regmap, SUN8I_I2S_TX_CHAN_SEL_REG,
 			   SUN8I_I2S_TX_CHAN_OFFSET_MASK,
-			   SUN8I_I2S_TX_CHAN_OFFSET(offset));
+			   SUN8I_I2S_TX_CHAN_OFFSET(i2s->offset));
 	regmap_update_bits(i2s->regmap, SUN8I_I2S_RX_CHAN_SEL_REG,
 			   SUN8I_I2S_TX_CHAN_OFFSET_MASK,
-			   SUN8I_I2S_TX_CHAN_OFFSET(offset));
+			   SUN8I_I2S_TX_CHAN_OFFSET(i2s->offset));
 
 	/* DAI clock master masks */
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {