[PATCH v1 0/15] Patches to update for rockchip i2s

[PATCH v1 0/15] Patches to update for rockchip i2s

[Sugar Zhang]

These patches fixup or update for rockchip i2s.


Sugar Zhang (13):
  ASoC: rockchip: i2s: Add support for set bclk ratio
  ASoC: rockchip: i2s: Fixup clk div error
  ASoC: rockchip: i2s: Improve dma data transfer efficiency
  ASoC: rockchip: i2s: Fix regmap_ops hang
  ASoC: rockchip: i2s: Fix concurrency between tx/rx
  ASoC: rockchip: i2s: Reset the controller if soft reset failed
  ASoC: dt-bindings: rockchip: Document reset property for i2s
  ASoC: rockchip: i2s: Add property to specify play/cap capability
  ASoC: dt-bindings: rockchip: i2s: Document property for
    playback/capture
  ASoC: rockchip: i2s: Add compatible for more SoCs
  ASoC: dt-bindings: rockchip: Add compatible strings for more SoCs
  ASoC: rockchip: i2s: Add support for frame inversion
  ASoC: dt-bindings: rockchip: i2s: Document property 'clk-trcm'

Xiaotan Luo (1):
  ASoC: rockchip: i2s: Fixup config for DAIFMT_DSP_A/B

Xing Zheng (1):
  ASoC: rockchip: i2s: Add support for 'rockchip,clk-trcm' property

 .../devicetree/bindings/sound/rockchip-i2s.yaml    |  30 ++++
 sound/soc/rockchip/rockchip_i2s.c                  | 153 ++++++++++++++++-----
 sound/soc/rockchip/rockchip_i2s.h                  |  10 +-
 3 files changed, 157 insertions(+), 36 deletions(-)

-- 
2.7.4




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[PATCH v1 01/15] ASoC: rockchip: i2s: Add support for set bclk ratio

[Sugar Zhang]

This patch adds support for set bclk ratio from machine driver.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---

 sound/soc/rockchip/rockchip_i2s.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index c7dc350..c9d5c52 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -49,6 +49,7 @@ struct rk_i2s_dev {
 	bool rx_start;
 	bool is_master_mode;
 	const struct rk_i2s_pins *pins;
+	unsigned int bclk_ratio;
 };
 
 static int i2s_runtime_suspend(struct device *dev)
@@ -278,7 +279,7 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream,
 
 	if (i2s->is_master_mode) {
 		mclk_rate = clk_get_rate(i2s->mclk);
-		bclk_rate = 2 * 32 * params_rate(params);
+		bclk_rate = i2s->bclk_ratio * params_rate(params);
 		if (bclk_rate == 0 || mclk_rate % bclk_rate)
 			return -EINVAL;
 
@@ -413,6 +414,16 @@ static int rockchip_i2s_trigger(struct snd_pcm_substream *substream,
 	return ret;
 }
 
+static int rockchip_i2s_set_bclk_ratio(struct snd_soc_dai *dai,
+				       unsigned int ratio)
+{
+	struct rk_i2s_dev *i2s = to_info(dai);
+
+	i2s->bclk_ratio = ratio;
+
+	return 0;
+}
+
 static int rockchip_i2s_set_sysclk(struct snd_soc_dai *cpu_dai, int clk_id,
 				   unsigned int freq, int dir)
 {
@@ -441,6 +452,7 @@ static int rockchip_i2s_dai_probe(struct snd_soc_dai *dai)
 
 static const struct snd_soc_dai_ops rockchip_i2s_dai_ops = {
 	.hw_params = rockchip_i2s_hw_params,
+	.set_bclk_ratio	= rockchip_i2s_set_bclk_ratio,
 	.set_sysclk = rockchip_i2s_set_sysclk,
 	.set_fmt = rockchip_i2s_set_fmt,
 	.trigger = rockchip_i2s_trigger,
@@ -638,6 +650,8 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
 	i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	i2s->capture_dma_data.maxburst = 4;
 
+	i2s->bclk_ratio = 64;
+
 	dev_set_drvdata(&pdev->dev, i2s);
 
 	pm_runtime_enable(&pdev->dev);
-- 
2.7.4




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[PATCH v1 02/15] ASoC: rockchip: i2s: Fixup clk div error

[Sugar Zhang]

MCLK maybe not precise as required because of PLL,
but which still can be used and no side effect. so,
using DIV_ROUND_CLOSEST instead div.

e.g.

set mclk to 11289600 Hz, but get 11289598 Hz.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---

 sound/soc/rockchip/rockchip_i2s.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index c9d5c52..05fce2c 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -280,10 +280,10 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream,
 	if (i2s->is_master_mode) {
 		mclk_rate = clk_get_rate(i2s->mclk);
 		bclk_rate = i2s->bclk_ratio * params_rate(params);
-		if (bclk_rate == 0 || mclk_rate % bclk_rate)
+		if (!bclk_rate)
 			return -EINVAL;
 
-		div_bclk = mclk_rate / bclk_rate;
+		div_bclk = DIV_ROUND_CLOSEST(mclk_rate, bclk_rate);
 		div_lrck = bclk_rate / params_rate(params);
 		regmap_update_bits(i2s->regmap, I2S_CKR,
 				   I2S_CKR_MDIV_MASK,
-- 
2.7.4




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[PATCH v1 03/15] ASoC: rockchip: i2s: Improve dma data transfer efficiency

[Sugar Zhang]

This patch changes dma data burst from 4 to 8 to improve
data transfer efficiency.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---

 sound/soc/rockchip/rockchip_i2s.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 05fce2c..2e0047d 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -644,11 +644,11 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
 
 	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->playback_dma_data.maxburst = 8;
 
 	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;
+	i2s->capture_dma_data.maxburst = 8;
 
 	i2s->bclk_ratio = 64;
 
-- 
2.7.4




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[PATCH v1 04/15] ASoC: rockchip: i2s: Fix regmap_ops hang

[Sugar Zhang]

API 'set_fmt' maybe called when PD is off, in the situation,
any register access will hang the system. so, enable PD
before r/w register.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---

 sound/soc/rockchip/rockchip_i2s.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 2e0047d..90877e8 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -187,7 +187,9 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 {
 	struct rk_i2s_dev *i2s = to_info(cpu_dai);
 	unsigned int mask = 0, val = 0;
+	int ret = 0;
 
+	pm_runtime_get_sync(cpu_dai->dev);
 	mask = I2S_CKR_MSS_MASK;
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBS_CFS:
@@ -200,7 +202,8 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 		i2s->is_master_mode = false;
 		break;
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_pm_put;
 	}
 
 	regmap_update_bits(i2s->regmap, I2S_CKR, mask, val);
@@ -214,7 +217,8 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 		val = I2S_CKR_CKP_POS;
 		break;
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_pm_put;
 	}
 
 	regmap_update_bits(i2s->regmap, I2S_CKR, mask, val);
@@ -237,7 +241,8 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 		val = I2S_TXCR_TFS_PCM | I2S_TXCR_PBM_MODE(1);
 		break;
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_pm_put;
 	}
 
 	regmap_update_bits(i2s->regmap, I2S_TXCR, mask, val);
@@ -260,12 +265,16 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 		val = I2S_RXCR_TFS_PCM | I2S_RXCR_PBM_MODE(1);
 		break;
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_pm_put;
 	}
 
 	regmap_update_bits(i2s->regmap, I2S_RXCR, mask, val);
 
-	return 0;
+err_pm_put:
+	pm_runtime_put(cpu_dai->dev);
+
+	return ret;
 }
 
 static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream,
-- 
2.7.4




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