[PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string for imx8qm & imx8qxp

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* [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string for imx8qm & imx8qxp
@ 2019-12-02 11:53 Shengjiu Wang
  2019-12-02 11:53 ` [PATCH v4 2/2] ASoC: fsl_asrc: Add support " Shengjiu Wang
  2019-12-02 12:57 ` [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string " Fabio Estevam
  0 siblings, 2 replies; 4+ messages in thread
From: Shengjiu Wang @ 2019-12-02 11:53 UTC (permalink / raw)
  To: timur, nicoleotsuka, Xiubo.Lee, festevam, broonie, alsa-devel,
	lgirdwood, perex, tiwai, robh+dt, mark.rutland, devicetree
  Cc: linuxppc-dev, linux-kernel

Add compatible string "fsl,imx8qm-asrc" for imx8qm platform,
"fsl,imx8qxp-asrc" for imx8qxp platform.

There are two asrc modules in imx8qm & imx8qxp, the clock mapping is
different for each other, so add new property "fsl,asrc-clk-map"
to distinguish them.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
changes in v2
-none

changes in v3
-use only one compatible string "fsl,imx8qm-asrc",
-add new property "fsl,asrc-clk-map".

changes in v4
-add "fsl,imx8qxp-asrc"

 Documentation/devicetree/bindings/sound/fsl,asrc.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
index 1d4d9f938689..f4481779e8f2 100644
--- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
@@ -8,7 +8,8 @@ three substreams within totally 10 channels.
 
 Required properties:
 
-  - compatible		: Contains "fsl,imx35-asrc" or "fsl,imx53-asrc".
+  - compatible		: Contains "fsl,imx35-asrc", "fsl,imx53-asrc",
+			  "fsl,imx8qm-asrc", "fsl,imx8qxp-asrc"
 
   - reg			: Offset and length of the register set for the device.
 
@@ -35,6 +36,11 @@ Required properties:
 
    - fsl,asrc-width	: Defines a mutual sample width used by DPCM Back Ends.
 
+   - fsl,asrc-clk-map   : Defines clock map used in driver. which is required
+			  by imx8qm/imx8qxp platform
+			  <0> - select the map for asrc0 in imx8qm/imx8qxp
+			  <1> - select the map for asrc1 in imx8qm/imx8qxp
+
 Optional properties:
 
    - big-endian		: If this property is absent, the little endian mode
-- 
2.21.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH v4 2/2] ASoC: fsl_asrc: Add support for imx8qm & imx8qxp
  2019-12-02 11:53 [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string for imx8qm & imx8qxp Shengjiu Wang
@ 2019-12-02 11:53 ` Shengjiu Wang
  2019-12-02 12:57 ` [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string " Fabio Estevam
  1 sibling, 0 replies; 4+ messages in thread
From: Shengjiu Wang @ 2019-12-02 11:53 UTC (permalink / raw)
  To: timur, nicoleotsuka, Xiubo.Lee, festevam, broonie, alsa-devel,
	lgirdwood, perex, tiwai, robh+dt, mark.rutland, devicetree
  Cc: linuxppc-dev, linux-kernel

There are two asrc module in imx8qm & imx8qxp, each module has
different clock configuration, and the DMA type is EDMA.

So in this patch, we define the new clocks, refine the clock map,
and include struct fsl_asrc_soc_data for different soc usage.

The EDMA channel is fixed with each dma request, one dma request
corresponding to one dma channel. So we need to request dma
channel with dma request of asrc module.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
---
changes in v2
- use !use_edma to wrap code in fsl_asrc_dma
- add Acked-by: Nicolin Chen

changes in v3
- remove the acked-by for commit is updated
- read "fsl,asrc-clk-map" property, and update table
  clk_map_imx8qm.

changes in v4
- Add table clk_map_imx8qxp
- add Acked-by: Nicolin Chen

 sound/soc/fsl/fsl_asrc.c     | 125 +++++++++++++++++++++++++++++------
 sound/soc/fsl/fsl_asrc.h     |  64 +++++++++++++++++-
 sound/soc/fsl/fsl_asrc_dma.c |  39 +++++++----
 3 files changed, 193 insertions(+), 35 deletions(-)

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index a3cfceea7d2f..0dcebc24c312 100644
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -41,26 +41,65 @@ static struct snd_pcm_hw_constraint_list fsl_asrc_rate_constraints = {
  * The following tables map the relationship between asrc_inclk/asrc_outclk in
  * fsl_asrc.h and the registers of ASRCSR
  */
-static unsigned char input_clk_map_imx35[] = {
+static unsigned char input_clk_map_imx35[ASRC_CLK_MAP_LEN] = {
 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
 };
 
-static unsigned char output_clk_map_imx35[] = {
+static unsigned char output_clk_map_imx35[ASRC_CLK_MAP_LEN] = {
 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
 };
 
 /* i.MX53 uses the same map for input and output */
-static unsigned char input_clk_map_imx53[] = {
+static unsigned char input_clk_map_imx53[ASRC_CLK_MAP_LEN] = {
 /*	0x0  0x1  0x2  0x3  0x4  0x5  0x6  0x7  0x8  0x9  0xa  0xb  0xc  0xd  0xe  0xf */
 	0x0, 0x1, 0x2, 0x7, 0x4, 0x5, 0x6, 0x3, 0x8, 0x9, 0xa, 0xb, 0xc, 0xf, 0xe, 0xd,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
 };
 
-static unsigned char output_clk_map_imx53[] = {
+static unsigned char output_clk_map_imx53[ASRC_CLK_MAP_LEN] = {
 /*	0x0  0x1  0x2  0x3  0x4  0x5  0x6  0x7  0x8  0x9  0xa  0xb  0xc  0xd  0xe  0xf */
 	0x8, 0x9, 0xa, 0x7, 0xc, 0x5, 0x6, 0xb, 0x0, 0x1, 0x2, 0x3, 0x4, 0xf, 0xe, 0xd,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
 };
 
-static unsigned char *clk_map[2];
+/**
+ * i.MX8QM/i.MX8QXP uses the same map for input and output.
+ * clk_map_imx8qm[0] is for i.MX8QM asrc0
+ * clk_map_imx8qm[1] is for i.MX8QM asrc1
+ * clk_map_imx8qxp[0] is for i.MX8QXP asrc0
+ * clk_map_imx8qxp[1] is for i.MX8QXP asrc1
+ */
+static unsigned char clk_map_imx8qm[2][ASRC_CLK_MAP_LEN] = {
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0xb, 0xc, 0xf, 0xf, 0xd, 0xe, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	0x4, 0x5, 0x6, 0xf, 0x8, 0x9, 0xa, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+};
+
+static unsigned char clk_map_imx8qxp[2][ASRC_CLK_MAP_LEN] = {
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xf, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xf, 0xf,
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0x7, 0x8, 0xf, 0xf, 0x9, 0xa, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	0xf, 0xf, 0x6, 0xf, 0xf, 0xf, 0xa, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+};
 
 /**
  * Select the pre-processing and post-processing options
@@ -353,8 +392,8 @@ static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
 	}
 
 	/* Validate input and output clock sources */
-	clk_index[IN] = clk_map[IN][config->inclk];
-	clk_index[OUT] = clk_map[OUT][config->outclk];
+	clk_index[IN] = asrc_priv->clk_map[IN][config->inclk];
+	clk_index[OUT] = asrc_priv->clk_map[OUT][config->outclk];
 
 	/* We only have output clock for ideal ratio mode */
 	clk = asrc_priv->asrck_clk[clk_index[ideal ? OUT : IN]];
@@ -398,13 +437,13 @@ static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
 	/* Set the channel number */
 	channels = config->channel_num;
 
-	if (asrc_priv->channel_bits < 4)
+	if (asrc_priv->soc->channel_bits < 4)
 		channels /= 2;
 
 	/* Update channels for current pair */
 	regmap_update_bits(asrc_priv->regmap, REG_ASRCNCR,
-			   ASRCNCR_ANCi_MASK(index, asrc_priv->channel_bits),
-			   ASRCNCR_ANCi(index, channels, asrc_priv->channel_bits));
+			   ASRCNCR_ANCi_MASK(index, asrc_priv->soc->channel_bits),
+			   ASRCNCR_ANCi(index, channels, asrc_priv->soc->channel_bits));
 
 	/* Default setting: Automatic selection for processing mode */
 	regmap_update_bits(asrc_priv->regmap, REG_ASRCTR,
@@ -531,7 +570,7 @@ static int fsl_asrc_dai_startup(struct snd_pcm_substream *substream,
 	struct fsl_asrc *asrc_priv = snd_soc_dai_get_drvdata(dai);
 
 	/* Odd channel number is not valid for older ASRC (channel_bits==3) */
-	if (asrc_priv->channel_bits == 3)
+	if (asrc_priv->soc->channel_bits == 3)
 		snd_pcm_hw_constraint_step(substream->runtime, 0,
 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
 
@@ -905,6 +944,7 @@ static int fsl_asrc_probe(struct platform_device *pdev)
 	struct resource *res;
 	void __iomem *regs;
 	int irq, ret, i;
+	u32 map_idx;
 	char tmp[16];
 
 	asrc_priv = devm_kzalloc(&pdev->dev, sizeof(*asrc_priv), GFP_KERNEL);
@@ -964,14 +1004,37 @@ static int fsl_asrc_probe(struct platform_device *pdev)
 		}
 	}
 
+	asrc_priv->soc = of_device_get_match_data(&pdev->dev);
+	if (!asrc_priv->soc) {
+		dev_err(&pdev->dev, "failed to get soc data\n");
+		return -ENODEV;
+	}
+
 	if (of_device_is_compatible(np, "fsl,imx35-asrc")) {
-		asrc_priv->channel_bits = 3;
-		clk_map[IN] = input_clk_map_imx35;
-		clk_map[OUT] = output_clk_map_imx35;
-	} else {
-		asrc_priv->channel_bits = 4;
-		clk_map[IN] = input_clk_map_imx53;
-		clk_map[OUT] = output_clk_map_imx53;
+		asrc_priv->clk_map[IN] = input_clk_map_imx35;
+		asrc_priv->clk_map[OUT] = output_clk_map_imx35;
+	} else if (of_device_is_compatible(np, "fsl,imx53-asrc")) {
+		asrc_priv->clk_map[IN] = input_clk_map_imx53;
+		asrc_priv->clk_map[OUT] = output_clk_map_imx53;
+	} else if (of_device_is_compatible(np, "fsl,imx8qm-asrc") ||
+		   of_device_is_compatible(np, "fsl,imx8qxp-asrc")) {
+		ret = of_property_read_u32(np, "fsl,asrc-clk-map", &map_idx);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to get clk map index\n");
+			return ret;
+		}
+
+		if (map_idx > 1) {
+			dev_err(&pdev->dev, "unsupported clk map index\n");
+			return -EINVAL;
+		}
+		if (of_device_is_compatible(np, "fsl,imx8qm-asrc")) {
+			asrc_priv->clk_map[IN] = clk_map_imx8qm[map_idx];
+			asrc_priv->clk_map[OUT] = clk_map_imx8qm[map_idx];
+		} else {
+			asrc_priv->clk_map[IN] = clk_map_imx8qxp[map_idx];
+			asrc_priv->clk_map[OUT] = clk_map_imx8qxp[map_idx];
+		}
 	}
 
 	ret = fsl_asrc_init(asrc_priv);
@@ -1113,9 +1176,31 @@ static const struct dev_pm_ops fsl_asrc_pm = {
 	SET_SYSTEM_SLEEP_PM_OPS(fsl_asrc_suspend, fsl_asrc_resume)
 };
 
+static const struct fsl_asrc_soc_data fsl_asrc_imx35_data = {
+	.use_edma = false,
+	.channel_bits = 3,
+};
+
+static const struct fsl_asrc_soc_data fsl_asrc_imx53_data = {
+	.use_edma = false,
+	.channel_bits = 4,
+};
+
+static const struct fsl_asrc_soc_data fsl_asrc_imx8qm_data = {
+	.use_edma = true,
+	.channel_bits = 4,
+};
+
+static const struct fsl_asrc_soc_data fsl_asrc_imx8qxp_data = {
+	.use_edma = true,
+	.channel_bits = 4,
+};
+
 static const struct of_device_id fsl_asrc_ids[] = {
-	{ .compatible = "fsl,imx35-asrc", },
-	{ .compatible = "fsl,imx53-asrc", },
+	{ .compatible = "fsl,imx35-asrc", .data = &fsl_asrc_imx35_data },
+	{ .compatible = "fsl,imx53-asrc", .data = &fsl_asrc_imx53_data },
+	{ .compatible = "fsl,imx8qm-asrc", .data = &fsl_asrc_imx8qm_data },
+	{ .compatible = "fsl,imx8qxp-asrc", .data = &fsl_asrc_imx8qxp_data },
 	{}
 };
 MODULE_DEVICE_TABLE(of, fsl_asrc_ids);
diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h
index 2b57e8c53728..8a821132d9d0 100644
--- a/sound/soc/fsl/fsl_asrc.h
+++ b/sound/soc/fsl/fsl_asrc.h
@@ -308,6 +308,29 @@ enum asrc_inclk {
 	INCLK_SSI3_TX = 0x0b,
 	INCLK_SPDIF_TX = 0x0c,
 	INCLK_ASRCK1_CLK = 0x0f,
+
+	/* clocks for imx8 */
+	INCLK_AUD_PLL_DIV_CLK0 = 0x10,
+	INCLK_AUD_PLL_DIV_CLK1 = 0x11,
+	INCLK_AUD_CLK0         = 0x12,
+	INCLK_AUD_CLK1         = 0x13,
+	INCLK_ESAI0_RX_CLK     = 0x14,
+	INCLK_ESAI0_TX_CLK     = 0x15,
+	INCLK_SPDIF0_RX        = 0x16,
+	INCLK_SPDIF1_RX        = 0x17,
+	INCLK_SAI0_RX_BCLK     = 0x18,
+	INCLK_SAI0_TX_BCLK     = 0x19,
+	INCLK_SAI1_RX_BCLK     = 0x1a,
+	INCLK_SAI1_TX_BCLK     = 0x1b,
+	INCLK_SAI2_RX_BCLK     = 0x1c,
+	INCLK_SAI3_RX_BCLK     = 0x1d,
+	INCLK_ASRC0_MUX_CLK    = 0x1e,
+
+	INCLK_ESAI1_RX_CLK     = 0x20,
+	INCLK_ESAI1_TX_CLK     = 0x21,
+	INCLK_SAI6_TX_BCLK     = 0x22,
+	INCLK_HDMI_RX_SAI0_RX_BCLK     = 0x24,
+	INCLK_HDMI_TX_SAI0_TX_BCLK     = 0x25,
 };
 
 enum asrc_outclk {
@@ -325,9 +348,33 @@ enum asrc_outclk {
 	OUTCLK_SSI3_RX = 0x0b,
 	OUTCLK_SPDIF_RX = 0x0c,
 	OUTCLK_ASRCK1_CLK = 0x0f,
+
+	/* clocks for imx8 */
+	OUTCLK_AUD_PLL_DIV_CLK0 = 0x10,
+	OUTCLK_AUD_PLL_DIV_CLK1 = 0x11,
+	OUTCLK_AUD_CLK0         = 0x12,
+	OUTCLK_AUD_CLK1         = 0x13,
+	OUTCLK_ESAI0_RX_CLK     = 0x14,
+	OUTCLK_ESAI0_TX_CLK     = 0x15,
+	OUTCLK_SPDIF0_RX        = 0x16,
+	OUTCLK_SPDIF1_RX        = 0x17,
+	OUTCLK_SAI0_RX_BCLK     = 0x18,
+	OUTCLK_SAI0_TX_BCLK     = 0x19,
+	OUTCLK_SAI1_RX_BCLK     = 0x1a,
+	OUTCLK_SAI1_TX_BCLK     = 0x1b,
+	OUTCLK_SAI2_RX_BCLK     = 0x1c,
+	OUTCLK_SAI3_RX_BCLK     = 0x1d,
+	OUTCLK_ASRCO_MUX_CLK    = 0x1e,
+
+	OUTCLK_ESAI1_RX_CLK     = 0x20,
+	OUTCLK_ESAI1_TX_CLK     = 0x21,
+	OUTCLK_SAI6_TX_BCLK     = 0x22,
+	OUTCLK_HDMI_RX_SAI0_RX_BCLK     = 0x24,
+	OUTCLK_HDMI_TX_SAI0_TX_BCLK     = 0x25,
 };
 
 #define ASRC_CLK_MAX_NUM	16
+#define ASRC_CLK_MAP_LEN	0x30
 
 enum asrc_word_width {
 	ASRC_WIDTH_24_BIT = 0,
@@ -387,6 +434,17 @@ struct dma_block {
 	unsigned int length;
 };
 
+/**
+ * fsl_asrc_soc_data: soc specific data
+ *
+ * @use_edma: using edma as dma device or not
+ * @channel_bits: width of ASRCNCR register for each pair
+ */
+struct fsl_asrc_soc_data {
+	bool use_edma;
+	unsigned int channel_bits;
+};
+
 /**
  * fsl_asrc_pair: ASRC Pair private data
  *
@@ -431,8 +489,9 @@ struct fsl_asrc_pair {
  * @asrck_clk: clock sources to driver ASRC internal logic
  * @lock: spin lock for resource protection
  * @pair: pair pointers
- * @channel_bits: width of ASRCNCR register for each pair
+ * @soc: soc specific data
  * @channel_avail: non-occupied channel numbers
+ * @clk_map: clock map for input/output clock
  * @asrc_rate: default sample rate for ASoC Back-Ends
  * @asrc_width: default sample width for ASoC Back-Ends
  * @regcache_cfg: store register value of REG_ASRCFG
@@ -450,8 +509,9 @@ struct fsl_asrc {
 	spinlock_t lock;
 
 	struct fsl_asrc_pair *pair[ASRC_PAIR_MAX_NUM];
-	unsigned int channel_bits;
+	const struct fsl_asrc_soc_data *soc;
 	unsigned int channel_avail;
+	unsigned char *clk_map[2];
 
 	int asrc_rate;
 	int asrc_width;
diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index d6146de9acd2..48486a78b7b4 100644
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -197,21 +197,34 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
 	dma_cap_set(DMA_SLAVE, mask);
 	dma_cap_set(DMA_CYCLIC, mask);
 
-	/* Get DMA request of Back-End */
-	tmp_chan = dma_request_slave_channel(dev_be, tx ? "tx" : "rx");
-	tmp_data = tmp_chan->private;
-	pair->dma_data.dma_request = tmp_data->dma_request;
-	dma_release_channel(tmp_chan);
+	/*
+	 * An EDMA DEV_TO_DEV channel is fixed and bound with DMA event of each
+	 * peripheral, unlike SDMA channel that is allocated dynamically. So no
+	 * need to configure dma_request and dma_request2, but get dma_chan via
+	 * dma_request_slave_channel directly with dma name of Front-End device
+	 */
+	if (!asrc_priv->soc->use_edma) {
+		/* Get DMA request of Back-End */
+		tmp_chan = dma_request_slave_channel(dev_be, tx ? "tx" : "rx");
+		tmp_data = tmp_chan->private;
+		pair->dma_data.dma_request = tmp_data->dma_request;
+		dma_release_channel(tmp_chan);
 
-	/* Get DMA request of Front-End */
-	tmp_chan = fsl_asrc_get_dma_channel(pair, dir);
-	tmp_data = tmp_chan->private;
-	pair->dma_data.dma_request2 = tmp_data->dma_request;
-	pair->dma_data.peripheral_type = tmp_data->peripheral_type;
-	pair->dma_data.priority = tmp_data->priority;
-	dma_release_channel(tmp_chan);
+		/* Get DMA request of Front-End */
+		tmp_chan = fsl_asrc_get_dma_channel(pair, dir);
+		tmp_data = tmp_chan->private;
+		pair->dma_data.dma_request2 = tmp_data->dma_request;
+		pair->dma_data.peripheral_type = tmp_data->peripheral_type;
+		pair->dma_data.priority = tmp_data->priority;
+		dma_release_channel(tmp_chan);
+
+		pair->dma_chan[dir] =
+			dma_request_channel(mask, filter, &pair->dma_data);
+	} else {
+		pair->dma_chan[dir] =
+			fsl_asrc_get_dma_channel(pair, dir);
+	}
 
-	pair->dma_chan[dir] = dma_request_channel(mask, filter, &pair->dma_data);
 	if (!pair->dma_chan[dir]) {
 		dev_err(dev, "failed to request DMA channel for Back-End\n");
 		return -EINVAL;
-- 
2.21.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string for imx8qm & imx8qxp
  2019-12-02 11:53 [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string for imx8qm & imx8qxp Shengjiu Wang
  2019-12-02 11:53 ` [PATCH v4 2/2] ASoC: fsl_asrc: Add support " Shengjiu Wang
@ 2019-12-02 12:57 ` Fabio Estevam
  2019-12-04  8:28   ` [alsa-devel] " Shengjiu Wang
  1 sibling, 1 reply; 4+ messages in thread
From: Fabio Estevam @ 2019-12-02 12:57 UTC (permalink / raw)
  To: Shengjiu Wang
  Cc: Mark Rutland,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	Linux-ALSA, Timur Tabi, Xiubo Li, linux-kernel, Takashi Iwai,
	Liam Girdwood, Rob Herring, Jaroslav Kysela, Nicolin Chen,
	Mark Brown, linuxppc-dev

On Mon, Dec 2, 2019 at 8:56 AM Shengjiu Wang <shengjiu.wang@nxp.com> wrote:

> -  - compatible         : Contains "fsl,imx35-asrc" or "fsl,imx53-asrc".
> +  - compatible         : Contains "fsl,imx35-asrc", "fsl,imx53-asrc",
> +                         "fsl,imx8qm-asrc", "fsl,imx8qxp-asrc"

You missed the word "or" as in the original binding.

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [alsa-devel] [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string for imx8qm & imx8qxp
  2019-12-02 12:57 ` [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string " Fabio Estevam
@ 2019-12-04  8:28   ` Shengjiu Wang
  0 siblings, 0 replies; 4+ messages in thread
From: Shengjiu Wang @ 2019-12-04  8:28 UTC (permalink / raw)
  To: Fabio Estevam
  Cc: Mark Rutland,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	Linux-ALSA, Timur Tabi, Xiubo Li, Liam Girdwood, Shengjiu Wang,
	linux-kernel, Takashi Iwai, Nicolin Chen, Rob Herring,
	Mark Brown, linuxppc-dev

Hi

On Mon, Dec 2, 2019 at 8:58 PM Fabio Estevam <festevam@gmail.com> wrote:
>
> On Mon, Dec 2, 2019 at 8:56 AM Shengjiu Wang <shengjiu.wang@nxp.com> wrote:
>
> > -  - compatible         : Contains "fsl,imx35-asrc" or "fsl,imx53-asrc".
> > +  - compatible         : Contains "fsl,imx35-asrc", "fsl,imx53-asrc",
> > +                         "fsl,imx8qm-asrc", "fsl,imx8qxp-asrc"
>
> You missed the word "or" as in the original binding.

will update it in v5.

Best regards
Wang Shengjiu

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2019-12-04  8:31 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-02 11:53 [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string for imx8qm & imx8qxp Shengjiu Wang
2019-12-02 11:53 ` [PATCH v4 2/2] ASoC: fsl_asrc: Add support " Shengjiu Wang
2019-12-02 12:57 ` [PATCH v4 1/2] ASoC: dt-bindings: fsl_asrc: add compatible string " Fabio Estevam
2019-12-04  8:28   ` [alsa-devel] " Shengjiu Wang

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