[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

[PATCH 05/15] ASoC: rockchip: i2s: Fix concurrency between tx/rx

[Sugar Zhang]

This patch adds lock to fix comcurrency between tx/rx
to fix 'rockchip-i2s ff070000.i2s; fail to clear'

Considering the situation;

       tx stream              rx stream
           |                      |
           |                   disable
         enable                   |
           |                    reset

After this patch:

         lock
           |
       tx stream
           |
         enable
           |
        unlock
       --------               ---------
                                lock
                                  |
                              rx stream
                                  |
                               disable
                                  |
                                reset
                                  |
                               unlock

Change-Id: Ia156144490a61f4fa9823b1313588e44688f4bce
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---
 sound/soc/rockchip/rockchip_i2s.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index dfa0a5e..b8e35a9 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -15,6 +15,7 @@
 #include <linux/clk.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
+#include <linux/spinlock.h>
 #include <sound/pcm_params.h>
 #include <sound/dmaengine_pcm.h>
 
@@ -52,6 +53,9 @@ struct rk_i2s_dev {
 	unsigned int bclk_ratio;
 };
 
+/* tx/rx ctrl lock */
+static DEFINE_SPINLOCK(lock);
+
 static int i2s_runtime_suspend(struct device *dev)
 {
 	struct rk_i2s_dev *i2s = dev_get_drvdata(dev);
@@ -93,6 +97,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
 	unsigned int val = 0;
 	int retry = 10;
 
+	spin_lock(&lock);
 	if (on) {
 		regmap_update_bits(i2s->regmap, I2S_DMACR,
 				   I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE);
@@ -133,6 +138,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
 			}
 		}
 	}
+	spin_unlock(&lock);
 }
 
 static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
@@ -140,6 +146,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
 	unsigned int val = 0;
 	int retry = 10;
 
+	spin_lock(&lock);
 	if (on) {
 		regmap_update_bits(i2s->regmap, I2S_DMACR,
 				   I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE);
@@ -180,6 +187,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
 			}
 		}
 	}
+	spin_unlock(&lock);
 }
 
 static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
-- 
2.7.4

[PATCH 06/15] ASoC: rockchip: i2s: Reset the controller if soft reset failed

[Sugar Zhang]

This patch brings i2s back to normal by resetting i2s m/h
when the soft reset failed.

Change-Id: I2fd47039b522ac89499b4a2912d5ffb7a469e75e
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---
 sound/soc/rockchip/rockchip_i2s.c | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index b8e35a9..a91f874d 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -15,6 +15,7 @@
 #include <linux/clk.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
+#include <linux/reset.h>
 #include <linux/spinlock.h>
 #include <sound/pcm_params.h>
 #include <sound/dmaengine_pcm.h>
@@ -40,6 +41,8 @@ struct rk_i2s_dev {
 
 	struct regmap *regmap;
 	struct regmap *grf;
+	struct reset_control *reset_m;
+	struct reset_control *reset_h;
 
 /*
  * Used to indicate the tx/rx status.
@@ -92,6 +95,20 @@ static inline struct rk_i2s_dev *to_info(struct snd_soc_dai *dai)
 	return snd_soc_dai_get_drvdata(dai);
 }
 
+static void rockchip_i2s_reset(struct rk_i2s_dev *i2s)
+{
+	dev_warn(i2s->dev, "Reset controller.\n");
+
+	reset_control_assert(i2s->reset_m);
+	reset_control_assert(i2s->reset_h);
+	udelay(1);
+	reset_control_deassert(i2s->reset_m);
+	reset_control_deassert(i2s->reset_h);
+
+	regcache_mark_dirty(i2s->regmap);
+	regcache_sync(i2s->regmap);
+}
+
 static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
 {
 	unsigned int val = 0;
@@ -132,7 +149,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
 				regmap_read(i2s->regmap, I2S_CLR, &val);
 				retry--;
 				if (!retry) {
-					dev_warn(i2s->dev, "fail to clear\n");
+					rockchip_i2s_reset(i2s);
 					break;
 				}
 			}
@@ -181,7 +198,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
 				regmap_read(i2s->regmap, I2S_CLR, &val);
 				retry--;
 				if (!retry) {
-					dev_warn(i2s->dev, "fail to clear\n");
+					rockchip_i2s_reset(i2s);
 					break;
 				}
 			}
@@ -629,6 +646,14 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
 		i2s->pins = of_id->data;
 	}
 
+	i2s->reset_m = devm_reset_control_get_optional(&pdev->dev, "reset-m");
+	if (IS_ERR(i2s->reset_m))
+		return PTR_ERR(i2s->reset_m);
+
+	i2s->reset_h = devm_reset_control_get_optional(&pdev->dev, "reset-h");
+	if (IS_ERR(i2s->reset_h))
+		return PTR_ERR(i2s->reset_h);
+
 	/* try to prepare related clocks */
 	i2s->hclk = devm_clk_get(&pdev->dev, "i2s_hclk");
 	if (IS_ERR(i2s->hclk)) {
-- 
2.7.4

[PATCH 07/15] ASoC: dt-bindings: rockchip: Document reset property for i2s

[Sugar Zhang]

This patch documents reset property for i2s.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: Idaaaa0583ddf2254589ab465766322f210db58a7
---
 Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index 245895b..9f9cc48 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -61,6 +61,14 @@ properties:
   power-domains:
     maxItems: 1
 
+  reset-names:
+    items:
+      - const: reset-m
+      - const: reset-h
+
+  resets:
+    maxItems: 2
+
   rockchip,capture-channels:
     $ref: /schemas/types.yaml#/definitions/uint32
     default: 2
-- 
2.7.4

[PATCH 08/15] ASoC: rockchip: i2s: Fixup config for DAIFMT_DSP_A/B

[Sugar Zhang]

From: Xiaotan Luo <lxt@rock-chips.com>

- DSP_A: PCM delay 1 bit mode, L data MSB after FRM LRC
- DSP_B: PCM no delay mode, L data MSB during FRM LRC

Change-Id: I198519c431815de3ca1fc154da78773ca705f0e0
Signed-off-by: Xiaotan Luo <lxt@rock-chips.com>
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---
 sound/soc/rockchip/rockchip_i2s.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index a91f874d..8a432ae 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -259,12 +259,12 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 	case SND_SOC_DAIFMT_I2S:
 		val = I2S_TXCR_IBM_NORMAL;
 		break;
-	case SND_SOC_DAIFMT_DSP_A: /* PCM no delay mode */
-		val = I2S_TXCR_TFS_PCM;
-		break;
-	case SND_SOC_DAIFMT_DSP_B: /* PCM delay 1 mode */
+	case SND_SOC_DAIFMT_DSP_A: /* PCM delay 1 bit mode */
 		val = I2S_TXCR_TFS_PCM | I2S_TXCR_PBM_MODE(1);
 		break;
+	case SND_SOC_DAIFMT_DSP_B: /* PCM no delay mode */
+		val = I2S_TXCR_TFS_PCM;
+		break;
 	default:
 		ret = -EINVAL;
 		goto err_pm_put;
@@ -283,12 +283,12 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 	case SND_SOC_DAIFMT_I2S:
 		val = I2S_RXCR_IBM_NORMAL;
 		break;
-	case SND_SOC_DAIFMT_DSP_A: /* PCM no delay mode */
-		val = I2S_RXCR_TFS_PCM;
-		break;
-	case SND_SOC_DAIFMT_DSP_B: /* PCM delay 1 mode */
+	case SND_SOC_DAIFMT_DSP_A: /* PCM delay 1 bit mode */
 		val = I2S_RXCR_TFS_PCM | I2S_RXCR_PBM_MODE(1);
 		break;
+	case SND_SOC_DAIFMT_DSP_B: /* PCM no delay mode */
+		val = I2S_RXCR_TFS_PCM;
+		break;
 	default:
 		ret = -EINVAL;
 		goto err_pm_put;
-- 
2.7.4

[PATCH 09/15] ASoC: rockchip: i2s: Add property to specify play/cap capability

[Sugar Zhang]

- 'rockchip,playback-only': support playback only.
- 'rockchip,capture-only': support capture only.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: Ie022214de4e42bba5ba898ea39a4e39807e8d4ab
---
 sound/soc/rockchip/rockchip_i2s.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 8a432ae..cedfe47 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -721,6 +721,11 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
 			soc_dai->capture.channels_max = val;
 	}
 
+	if (of_property_read_bool(node, "rockchip,playback-only"))
+		soc_dai->capture.channels_min = 0;
+	else if (of_property_read_bool(node, "rockchip,capture-only"))
+		soc_dai->playback.channels_min = 0;
+
 	ret = devm_snd_soc_register_component(&pdev->dev,
 					      &rockchip_i2s_component,
 					      soc_dai, 1);
-- 
2.7.4

[PATCH 10/15] ASoC: dt-bindings: rockchip: i2s: Document property for playback/capture

[Sugar Zhang]

This patch documents property for playback-only and capture-only.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: I06a38e0e9fb8c4386cda3e5f6bc974a68180a426
---
 Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index 9f9cc48..005b6e6 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -81,6 +81,16 @@ properties:
     description:
       Max playback channels, if not set, 8 channels default.
 
+  rockchip,capture-only:
+    type: boolean
+    description:
+      Specify that the controller has capture only capability.
+
+  rockchip,playback-only:
+    type: boolean
+    description:
+      Specify that the controller has playback only capability.
+
   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
-- 
2.7.4

[PATCH 11/15] ASoC: rockchip: i2s: Add compatible for more SoCs

[Sugar Zhang]

This patch adds more compatible strings for SoCs.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: I980a7c34a7f6c82a066a37e7f97fa4e69cbae583
---
 sound/soc/rockchip/rockchip_i2s.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index cedfe47..a0f2778 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -613,10 +613,20 @@ static const struct rk_i2s_pins rk3399_i2s_pins = {
 };
 
 static const struct of_device_id rockchip_i2s_match[] __maybe_unused = {
+	{ .compatible = "rockchip,px30-i2s", },
+	{ .compatible = "rockchip,rk1808-i2s", },
+	{ .compatible = "rockchip,rk3036-i2s", },
 	{ .compatible = "rockchip,rk3066-i2s", },
+	{ .compatible = "rockchip,rk3128-i2s", },
 	{ .compatible = "rockchip,rk3188-i2s", },
+	{ .compatible = "rockchip,rk3228-i2s", },
 	{ .compatible = "rockchip,rk3288-i2s", },
+	{ .compatible = "rockchip,rk3308-i2s", },
+	{ .compatible = "rockchip,rk3328-i2s", },
+	{ .compatible = "rockchip,rk3366-i2s", },
+	{ .compatible = "rockchip,rk3368-i2s", },
 	{ .compatible = "rockchip,rk3399-i2s", .data = &rk3399_i2s_pins },
+	{ .compatible = "rockchip,rv1126-i2s", },
 	{},
 };
 
-- 
2.7.4

[PATCH 12/15] ASoC: dt-bindings: rockchip: Add compatible strings for more SoCs

[Sugar Zhang]

This patch adds compatible strings for more SoCs.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: Id1f32a4518c01e0d50c5702a557912e165904995
---
 Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index 005b6e6..11e911a 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -20,7 +20,9 @@ properties:
       - items:
           - enum:
               - rockchip,px30-i2s
+              - rockchip,rk1808-i2s
               - rockchip,rk3036-i2s
+              - rockchip,rk3128-i2s
               - rockchip,rk3188-i2s
               - rockchip,rk3228-i2s
               - rockchip,rk3288-i2s
@@ -29,6 +31,7 @@ properties:
               - rockchip,rk3366-i2s
               - rockchip,rk3368-i2s
               - rockchip,rk3399-i2s
+              - rockchip,rv1126-i2s
           - const: rockchip,rk3066-i2s
 
   reg:
-- 
2.7.4

[PATCH 13/15] ASoC: rockchip: i2s: Add support for frame inversion

[Sugar Zhang]

This patch adds support for frame inversion.

Change-Id: Ic77122501224cec45200ae64416745a82fb67d76
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---
 sound/soc/rockchip/rockchip_i2s.c | 20 +++++++++++++++++---
 sound/soc/rockchip/rockchip_i2s.h | 10 ++++++----
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index a0f2778..6ccb62e 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -233,13 +233,27 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 
 	regmap_update_bits(i2s->regmap, I2S_CKR, mask, val);
 
-	mask = I2S_CKR_CKP_MASK;
+	mask = I2S_CKR_CKP_MASK | I2S_CKR_TLP_MASK | I2S_CKR_RLP_MASK;
 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 	case SND_SOC_DAIFMT_NB_NF:
-		val = I2S_CKR_CKP_NEG;
+		val = I2S_CKR_CKP_NORMAL |
+		      I2S_CKR_TLP_NORMAL |
+		      I2S_CKR_RLP_NORMAL;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		val = I2S_CKR_CKP_NORMAL |
+		      I2S_CKR_TLP_INVERTED |
+		      I2S_CKR_RLP_INVERTED;
 		break;
 	case SND_SOC_DAIFMT_IB_NF:
-		val = I2S_CKR_CKP_POS;
+		val = I2S_CKR_CKP_INVERTED |
+		      I2S_CKR_TLP_NORMAL |
+		      I2S_CKR_RLP_NORMAL;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		val = I2S_CKR_CKP_INVERTED |
+		      I2S_CKR_TLP_INVERTED |
+		      I2S_CKR_RLP_INVERTED;
 		break;
 	default:
 		ret = -EINVAL;
diff --git a/sound/soc/rockchip/rockchip_i2s.h b/sound/soc/rockchip/rockchip_i2s.h
index fcaae24..251851b 100644
--- a/sound/soc/rockchip/rockchip_i2s.h
+++ b/sound/soc/rockchip/rockchip_i2s.h
@@ -88,15 +88,17 @@
 #define I2S_CKR_MSS_SLAVE	(1 << I2S_CKR_MSS_SHIFT)
 #define I2S_CKR_MSS_MASK	(1 << I2S_CKR_MSS_SHIFT)
 #define I2S_CKR_CKP_SHIFT	26
-#define I2S_CKR_CKP_NEG		(0 << I2S_CKR_CKP_SHIFT)
-#define I2S_CKR_CKP_POS		(1 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_CKP_NORMAL	(0 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_CKP_INVERTED	(1 << I2S_CKR_CKP_SHIFT)
 #define I2S_CKR_CKP_MASK	(1 << I2S_CKR_CKP_SHIFT)
 #define I2S_CKR_RLP_SHIFT	25
 #define I2S_CKR_RLP_NORMAL	(0 << I2S_CKR_RLP_SHIFT)
-#define I2S_CKR_RLP_OPPSITE	(1 << I2S_CKR_RLP_SHIFT)
+#define I2S_CKR_RLP_INVERTED	(1 << I2S_CKR_RLP_SHIFT)
+#define I2S_CKR_RLP_MASK	(1 << I2S_CKR_RLP_SHIFT)
 #define I2S_CKR_TLP_SHIFT	24
 #define I2S_CKR_TLP_NORMAL	(0 << I2S_CKR_TLP_SHIFT)
-#define I2S_CKR_TLP_OPPSITE	(1 << I2S_CKR_TLP_SHIFT)
+#define I2S_CKR_TLP_INVERTED	(1 << I2S_CKR_TLP_SHIFT)
+#define I2S_CKR_TLP_MASK	(1 << I2S_CKR_TLP_SHIFT)
 #define I2S_CKR_MDIV_SHIFT	16
 #define I2S_CKR_MDIV(x)		((x - 1) << I2S_CKR_MDIV_SHIFT)
 #define I2S_CKR_MDIV_MASK	(0xff << I2S_CKR_MDIV_SHIFT)
-- 
2.7.4

[PATCH 14/15] ASoC: rockchip: i2s: Add support for 'rockchip,clk-trcm' property

[Sugar Zhang]

From: Xing Zheng <zhengxing@rock-chips.com>

If there is only one lrck (tx or rx) by hardware, we need to
use 'rockchip,clk-trcm' to specify which lrck can be used.

Change-Id: I3bf8d87a6bc8c45e183040012d87d8be21a4c133
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---
 sound/soc/rockchip/rockchip_i2s.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 6ccb62e..b9d9c88 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -54,6 +54,7 @@ struct rk_i2s_dev {
 	bool is_master_mode;
 	const struct rk_i2s_pins *pins;
 	unsigned int bclk_ratio;
+	unsigned int clk_trcm;
 };
 
 /* tx/rx ctrl lock */
@@ -321,7 +322,6 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream,
 				  struct snd_soc_dai *dai)
 {
 	struct rk_i2s_dev *i2s = to_info(dai);
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	unsigned int val = 0;
 	unsigned int mclk_rate, bclk_rate, div_bclk, div_lrck;
 
@@ -421,13 +421,6 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream,
 	regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK,
 			   I2S_DMACR_RDL(16));
 
-	val = I2S_CKR_TRCM_TXRX;
-	if (dai->driver->symmetric_rate && rtd->dai_link->symmetric_rate)
-		val = I2S_CKR_TRCM_TXONLY;
-
-	regmap_update_bits(i2s->regmap, I2S_CKR,
-			   I2S_CKR_TRCM_MASK,
-			   val);
 	return 0;
 }
 
@@ -531,7 +524,6 @@ static struct snd_soc_dai_driver rockchip_i2s_dai = {
 			    SNDRV_PCM_FMTBIT_S32_LE),
 	},
 	.ops = &rockchip_i2s_dai_ops,
-	.symmetric_rate = 1,
 };
 
 static const struct snd_soc_component_driver rockchip_i2s_component = {
@@ -750,6 +742,18 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
 	else if (of_property_read_bool(node, "rockchip,capture-only"))
 		soc_dai->playback.channels_min = 0;
 
+	i2s->clk_trcm = I2S_CKR_TRCM_TXRX;
+	if (!of_property_read_u32(node, "rockchip,clk-trcm", &val)) {
+		if (val >= 0 && val <= 2) {
+			i2s->clk_trcm = val << I2S_CKR_TRCM_SHIFT;
+			if (i2s->clk_trcm)
+				soc_dai->symmetric_rate = 1;
+		}
+	}
+
+	regmap_update_bits(i2s->regmap, I2S_CKR,
+			   I2S_CKR_TRCM_MASK, i2s->clk_trcm);
+
 	ret = devm_snd_soc_register_component(&pdev->dev,
 					      &rockchip_i2s_component,
 					      soc_dai, 1);
-- 
2.7.4

[PATCH 15/15] ASoC: dt-bindings: rockchip: i2s: Document property 'clk-trcm'

[Sugar Zhang]

This patch documents property 'rockchip,clk-trcm' which is used
to specify the lrck.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: I648142c57c568bbed209f2b9188b1f539a3285b2
---
 Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index 11e911a..8d9dfed 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -72,6 +72,15 @@ properties:
   resets:
     maxItems: 2
 
+  rockchip,clk-trcm:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+    description:
+      tx and rx lrck/bclk common use.
+      0: both tx_lrck/bclk and rx_lrck/bclk are used
+      1: only tx_lrck/bclk is used
+      2: only rx_lrck/bclk is used
+
   rockchip,capture-channels:
     $ref: /schemas/types.yaml#/definitions/uint32
     default: 2
-- 
2.7.4

Re: [PATCH 14/15] ASoC: rockchip: i2s: Add support for 'rockchip, clk-trcm' property

[Nicolas Frattaroli]

On Montag, 23. August 2021 12:54:35 CEST Sugar Zhang wrote:
> From: Xing Zheng <zhengxing@rock-chips.com>
> 
> If there is only one lrck (tx or rx) by hardware, we need to
> use 'rockchip,clk-trcm' to specify which lrck can be used.
> 
> Change-Id: I3bf8d87a6bc8c45e183040012d87d8be21a4c133
> Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
> Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
> ---
>  sound/soc/rockchip/rockchip_i2s.c | 22 +++++++++++++---------
>  1 file changed, 13 insertions(+), 9 deletions(-)
> 
> diff --git a/sound/soc/rockchip/rockchip_i2s.c
> b/sound/soc/rockchip/rockchip_i2s.c index 6ccb62e..b9d9c88 100644
> --- a/sound/soc/rockchip/rockchip_i2s.c
> +++ b/sound/soc/rockchip/rockchip_i2s.c
> @@ -54,6 +54,7 @@ struct rk_i2s_dev {
>  	bool is_master_mode;
>  	const struct rk_i2s_pins *pins;
>  	unsigned int bclk_ratio;
> +	unsigned int clk_trcm;
>  };
> 
>  /* tx/rx ctrl lock */
> @@ -321,7 +322,6 @@ static int rockchip_i2s_hw_params(struct
> snd_pcm_substream *substream, struct snd_soc_dai *dai)
>  {
>  	struct rk_i2s_dev *i2s = to_info(dai);
> -	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
>  	unsigned int val = 0;
>  	unsigned int mclk_rate, bclk_rate, div_bclk, div_lrck;
> 
> @@ -421,13 +421,6 @@ static int rockchip_i2s_hw_params(struct
> snd_pcm_substream *substream, regmap_update_bits(i2s->regmap, I2S_DMACR,
> I2S_DMACR_RDL_MASK,
>  			   I2S_DMACR_RDL(16));
> 
> -	val = I2S_CKR_TRCM_TXRX;
> -	if (dai->driver->symmetric_rate && rtd->dai_link->symmetric_rate)
> -		val = I2S_CKR_TRCM_TXONLY;
> -
> -	regmap_update_bits(i2s->regmap, I2S_CKR,
> -			   I2S_CKR_TRCM_MASK,
> -			   val);
>  	return 0;
>  }
> 
> @@ -531,7 +524,6 @@ static struct snd_soc_dai_driver rockchip_i2s_dai = {
>  			    SNDRV_PCM_FMTBIT_S32_LE),
>  	},
>  	.ops = &rockchip_i2s_dai_ops,
> -	.symmetric_rate = 1,
>  };
> 
>  static const struct snd_soc_component_driver rockchip_i2s_component = {
> @@ -750,6 +742,18 @@ static int rockchip_i2s_probe(struct platform_device
> *pdev) else if (of_property_read_bool(node, "rockchip,capture-only"))
>  		soc_dai->playback.channels_min = 0;
> 
> +	i2s->clk_trcm = I2S_CKR_TRCM_TXRX;
> +	if (!of_property_read_u32(node, "rockchip,clk-trcm", &val)) {
> +		if (val >= 0 && val <= 2) {
> +			i2s->clk_trcm = val << I2S_CKR_TRCM_SHIFT;
> +			if (i2s->clk_trcm)
> +				soc_dai->symmetric_rate = 1;
> +		}
> +	}
> +
> +	regmap_update_bits(i2s->regmap, I2S_CKR,
> +			   I2S_CKR_TRCM_MASK, i2s->clk_trcm);
> +
>  	ret = devm_snd_soc_register_component(&pdev->dev,
>  					      &rockchip_i2s_component,
>  					      soc_dai, 1);

Hello,

I recommend doing the same thing with clk-trcm that I'm going to do in v3 of 
my i2s-tdm driver, as per Robin Murphy's suggestion:

Have tx-only and rx-only be two boolean properties. I named them
rockchip,trcm-sync-tx-only and rockchip,trcm-sync-rx-only.

I also recommend only shifting the value when writing it to registers, and
storing it in its unshifted state for debug reasons.

My probe function looks like this:

	i2s_tdm->clk_trcm = TRCM_TXRX;
	if (of_property_read_bool(node, "rockchip,trcm-sync-tx-only"))
		i2s_tdm->clk_trcm = TRCM_TX;
	if (of_property_read_bool(node, "rockchip,trcm-sync-rx-only")) {
		if (i2s_tdm->clk_trcm) {
			dev_err(i2s_tdm->dev, "invalid trcm-sync 
configuration\n");
			return -EINVAL;
		}
		i2s_tdm->clk_trcm = TRCM_RX;
	}
	if (i2s_tdm->clk_trcm != TRCM_TXRX)
		i2s_tdm_dai.symmetric_rate = 1;

When writing clk_trcm to a register, I then just do:

	regmap_update_bits(i2s_tdm->regmap, I2S_CKR, I2S_CKR_TRCM_MASK,
			   i2s_tdm->clk_trcm << I2S_CKR_TRCM_SHIFT);

This way if I need to add an error message or debug print somewhere, then 
clk_trcm is still either 0, 1 or 2.

In general, we should look into supporting both i2s and i2s-tdm controllers in 
the same driver if possible. This way we don't need to duplicate work like 
this. Do you think this is feasible to do? When I looked at the register maps 
I saw that the bits I2S/TDM uses were reserved in the I2S version of the 
controller, so I think it should work.

Regards,
Nicolas Frattaroli

Re: [PATCH 15/15] ASoC: dt-bindings: rockchip: i2s: Document property 'clk-trcm'

[Rob Herring]

On Mon, 23 Aug 2021 18:55:32 +0800, Sugar Zhang wrote:
> This patch documents property 'rockchip,clk-trcm' which is used
> to specify the lrck.
> 
> Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
> Change-Id: I648142c57c568bbed209f2b9188b1f539a3285b2
> ---
>  Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
make[1]: *** Deleting file 'Documentation/devicetree/bindings/sound/rockchip-i2s.example.dts'
Traceback (most recent call last):
  File "/usr/local/bin/dt-extract-example", line 45, in <module>
    binding = yaml.load(open(args.yamlfile, encoding='utf-8').read())
  File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/main.py", line 434, in load
    return constructor.get_single_data()
  File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/constructor.py", line 120, in get_single_data
    node = self.composer.get_single_node()
  File "_ruamel_yaml.pyx", line 706, in _ruamel_yaml.CParser.get_single_node
  File "_ruamel_yaml.pyx", line 724, in _ruamel_yaml.CParser._compose_document
  File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
  File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
  File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 891, in _ruamel_yaml.CParser._compose_mapping_node
  File "_ruamel_yaml.pyx", line 904, in _ruamel_yaml.CParser._parse_next_event
ruamel.yaml.scanner.ScannerError: mapping values are not allowed in this context
  in "<unicode string>", line 80, column 8
make[1]: *** [Documentation/devicetree/bindings/Makefile:20: Documentation/devicetree/bindings/sound/rockchip-i2s.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
./Documentation/devicetree/bindings/sound/rockchip-i2s.yaml:  mapping values are not allowed in this context
  in "<unicode string>", line 80, column 8
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml: ignoring, error parsing file
warning: no schema found in file: ./Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
make: *** [Makefile:1419: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1519630

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.

Re: [PATCH 15/15] ASoC: dt-bindings: rockchip: i2s: Document property 'clk-trcm'

[Rob Herring]

On Mon, Aug 23, 2021 at 06:55:32PM +0800, Sugar Zhang wrote:
> This patch documents property 'rockchip,clk-trcm' which is used
> to specify the lrck.
> 
> Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
> Change-Id: I648142c57c568bbed209f2b9188b1f539a3285b2

Drop this.

> ---
>  Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
> index 11e911a..8d9dfed 100644
> --- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
> +++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
> @@ -72,6 +72,15 @@ properties:
>    resets:
>      maxItems: 2
>  
> +  rockchip,clk-trcm:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    default: 0
> +    description:
> +      tx and rx lrck/bclk common use.
> +      0: both tx_lrck/bclk and rx_lrck/bclk are used
> +      1: only tx_lrck/bclk is used
> +      2: only rx_lrck/bclk is used

Sounds like constraints. Make a schema.

> +
>    rockchip,capture-channels:
>      $ref: /schemas/types.yaml#/definitions/uint32
>      default: 2
> -- 
> 2.7.4
> 
> 
> 
> 

Re: [PATCH 14/15] ASoC: rockchip: i2s: Add support for 'rockchip, clk-trcm' property

[sugar zhang]

Hi Nicolas,

On 2021/8/23 19:47, Nicolas Frattaroli wrote:
> On Montag, 23. August 2021 12:54:35 CEST Sugar Zhang wrote:
>> From: Xing Zheng <zhengxing@rock-chips.com>
>>
>> If there is only one lrck (tx or rx) by hardware, we need to
>> use 'rockchip,clk-trcm' to specify which lrck can be used.
>>
>> Change-Id: I3bf8d87a6bc8c45e183040012d87d8be21a4c133
>> Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
>> Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
>> ---
>>   sound/soc/rockchip/rockchip_i2s.c | 22 +++++++++++++---------
>>   1 file changed, 13 insertions(+), 9 deletions(-)
>>
>> diff --git a/sound/soc/rockchip/rockchip_i2s.c
>> b/sound/soc/rockchip/rockchip_i2s.c index 6ccb62e..b9d9c88 100644
>> --- a/sound/soc/rockchip/rockchip_i2s.c
>> +++ b/sound/soc/rockchip/rockchip_i2s.c
>> @@ -54,6 +54,7 @@ struct rk_i2s_dev {
>>   	bool is_master_mode;
>>   	const struct rk_i2s_pins *pins;
>>   	unsigned int bclk_ratio;
>> +	unsigned int clk_trcm;
>>   };
>>
>>   /* tx/rx ctrl lock */
>> @@ -321,7 +322,6 @@ static int rockchip_i2s_hw_params(struct
>> snd_pcm_substream *substream, struct snd_soc_dai *dai)
>>   {
>>   	struct rk_i2s_dev *i2s = to_info(dai);
>> -	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
>>   	unsigned int val = 0;
>>   	unsigned int mclk_rate, bclk_rate, div_bclk, div_lrck;
>>
>> @@ -421,13 +421,6 @@ static int rockchip_i2s_hw_params(struct
>> snd_pcm_substream *substream, regmap_update_bits(i2s->regmap, I2S_DMACR,
>> I2S_DMACR_RDL_MASK,
>>   			   I2S_DMACR_RDL(16));
>>
>> -	val = I2S_CKR_TRCM_TXRX;
>> -	if (dai->driver->symmetric_rate && rtd->dai_link->symmetric_rate)
>> -		val = I2S_CKR_TRCM_TXONLY;
>> -
>> -	regmap_update_bits(i2s->regmap, I2S_CKR,
>> -			   I2S_CKR_TRCM_MASK,
>> -			   val);
>>   	return 0;
>>   }
>>
>> @@ -531,7 +524,6 @@ static struct snd_soc_dai_driver rockchip_i2s_dai = {
>>   			    SNDRV_PCM_FMTBIT_S32_LE),
>>   	},
>>   	.ops = &rockchip_i2s_dai_ops,
>> -	.symmetric_rate = 1,
>>   };
>>
>>   static const struct snd_soc_component_driver rockchip_i2s_component = {
>> @@ -750,6 +742,18 @@ static int rockchip_i2s_probe(struct platform_device
>> *pdev) else if (of_property_read_bool(node, "rockchip,capture-only"))
>>   		soc_dai->playback.channels_min = 0;
>>
>> +	i2s->clk_trcm = I2S_CKR_TRCM_TXRX;
>> +	if (!of_property_read_u32(node, "rockchip,clk-trcm", &val)) {
>> +		if (val >= 0 && val <= 2) {
>> +			i2s->clk_trcm = val << I2S_CKR_TRCM_SHIFT;
>> +			if (i2s->clk_trcm)
>> +				soc_dai->symmetric_rate = 1;
>> +		}
>> +	}
>> +
>> +	regmap_update_bits(i2s->regmap, I2S_CKR,
>> +			   I2S_CKR_TRCM_MASK, i2s->clk_trcm);
>> +
>>   	ret = devm_snd_soc_register_component(&pdev->dev,
>>   					      &rockchip_i2s_component,
>>   					      soc_dai, 1);
> Hello,
>
> I recommend doing the same thing with clk-trcm that I'm going to do in v3 of
> my i2s-tdm driver, as per Robin Murphy's suggestion:
>
> Have tx-only and rx-only be two boolean properties. I named them
> rockchip,trcm-sync-tx-only and rockchip,trcm-sync-rx-only.
>
> I also recommend only shifting the value when writing it to registers, and
> storing it in its unshifted state for debug reasons.
okay, will do in v2.
> My probe function looks like this:
>
> 	i2s_tdm->clk_trcm = TRCM_TXRX;
> 	if (of_property_read_bool(node, "rockchip,trcm-sync-tx-only"))
> 		i2s_tdm->clk_trcm = TRCM_TX;
> 	if (of_property_read_bool(node, "rockchip,trcm-sync-rx-only")) {
> 		if (i2s_tdm->clk_trcm) {
> 			dev_err(i2s_tdm->dev, "invalid trcm-sync
> configuration\n");
> 			return -EINVAL;
> 		}
> 		i2s_tdm->clk_trcm = TRCM_RX;
> 	}
> 	if (i2s_tdm->clk_trcm != TRCM_TXRX)
> 		i2s_tdm_dai.symmetric_rate = 1;
>
> When writing clk_trcm to a register, I then just do:
>
> 	regmap_update_bits(i2s_tdm->regmap, I2S_CKR, I2S_CKR_TRCM_MASK,
> 			   i2s_tdm->clk_trcm << I2S_CKR_TRCM_SHIFT);
>
> This way if I need to add an error message or debug print somewhere, then
> clk_trcm is still either 0, 1 or 2.
>
> In general, we should look into supporting both i2s and i2s-tdm controllers in
> the same driver if possible. This way we don't need to duplicate work like
> this. Do you think this is feasible to do? When I looked at the register maps
> I saw that the bits I2S/TDM uses were reserved in the I2S version of the
> controller, so I think it should work.

It's possible, but will make the driver much more complicate(a lot of 
'if...else...').

Though the registers were compatible, but the design is totally 
different, such as clks, reset signal,  pins and core logic.

so, split into two drivers to support old controller and new one.

> Regards,
> Nicolas Frattaroli
>
>
>
>
>
-- 
Best Regards!
张学广/Sugar
瑞芯微电子股份有限公司
Rockchip Electronics Co., Ltd.

Re: [PATCH 15/15] ASoC: dt-bindings: rockchip: i2s: Document property 'clk-trcm'【请注意，邮件由robherring2@gmail.com代发】

[sugar zhang]

On 2021/8/24 1:36, Rob Herring wrote:
> On Mon, Aug 23, 2021 at 06:55:32PM +0800, Sugar Zhang wrote:
>> This patch documents property 'rockchip,clk-trcm' which is used
>> to specify the lrck.
>>
>> Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
>> Change-Id: I648142c57c568bbed209f2b9188b1f539a3285b2
> Drop this.
okay, will do in v2.
>> ---
>>   Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 9 +++++++++
>>   1 file changed, 9 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
>> index 11e911a..8d9dfed 100644
>> --- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
>> +++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
>> @@ -72,6 +72,15 @@ properties:
>>     resets:
>>       maxItems: 2
>>   
>> +  rockchip,clk-trcm:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    default: 0
>> +    description:
>> +      tx and rx lrck/bclk common use.
>> +      0: both tx_lrck/bclk and rx_lrck/bclk are used
>> +      1: only tx_lrck/bclk is used
>> +      2: only rx_lrck/bclk is used
> Sounds like constraints. Make a schema.
will split into two properties: rockchip,trcm-sync-tx-only, 
rockchip,trcm-sync-rx-only.
>> +
>>     rockchip,capture-channels:
>>       $ref: /schemas/types.yaml#/definitions/uint32
>>       default: 2
>> -- 
>> 2.7.4
>>
>>
>>
>>
>
>
-- 
Best Regards!
张学广/Sugar
瑞芯微电子股份有限公司
Rockchip Electronics Co., Ltd.