Add ASRC Peripheral to Peripheral driver

RFC PATCH In review Nicolin Chen 2 participants 6 messages Jun 13, 2014 – Jul 24, 2014

Subsystems (6)

Device tree bindings Sound Arm i.MX and Layerscape ASoC +2 more subsystems

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Nicolin Chen

author reviewer

2014-06-13 10:05 UTC #0 lore raw

cover Add ASRC Peripheral to Peripheral driver

This series of patches have a direct dependency between them. So we might need to push them into one branch. And sorry for this :(

Patch-1 adds device to device support in SDMA driver along with a secondary request in struct imx_dma_data which's requred in the Patch-2 ASRC driver.

Nicolin Chen (2):
dma: imx-sdma: Add device to device support
ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers

 .../devicetree/bindings/sound/fsl,asrc.txt         |   62 ++
 drivers/dma/imx-sdma.c                             |   40 +-
 include/linux/platform_data/dma-imx.h              |    1 +
 sound/soc/fsl/Kconfig                              |    9 +
 sound/soc/fsl/Makefile                             |    2 +
 sound/soc/fsl/fsl_asrc.c                           | 1031 ++++++++++++++++++++
 sound/soc/fsl/fsl_asrc.h                           |  431 ++++++++
 sound/soc/fsl/fsl_asrc_dma.c                       |  385 ++++++++
 8 files changed, 1956 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,asrc.txt
 create mode 100644 sound/soc/fsl/fsl_asrc.c
 create mode 100644 sound/soc/fsl/fsl_asrc.h
 create mode 100644 sound/soc/fsl/fsl_asrc_dma.c

Signature · 1 line

1.8.4

Nicolin Chen

author reviewer

2014-06-13 10:06 UTC #1 lore raw

RFC PATCH 1/2 dma: imx-sdma: Add device to device support

This patch adds DEV_TO_DEV support for i.MX SDMA driver to support data tranfer between two peripheral FIFOs. The per_2_per script requires two peripheral addresses and two DMA requests. So this patch also adds them into private structure.

Signed-off-by Nicolin Chen <[email protected]>

---
 drivers/dma/imx-sdma.c                | 40 ++++++++++++++++++++++++++++++-----
 include/linux/platform_data/dma-imx.h |  1 +
 2 files changed, 36 insertions(+), 5 deletions(-)

drivers/dma/imx-sdma.c +35 -5

index 85561dc..5af1a69 100644
@@ -258,8 +258,9 @@ struct sdma_channel {
 	struct sdma_buffer_descriptor	*bd;
 	dma_addr_t			bd_phys;
 	unsigned int			pc_from_device, pc_to_device;
+	unsigned int			device_to_device;
 	unsigned long			flags;
-	dma_addr_t			per_address;
+	dma_addr_t			per_address, per_address2;
 	unsigned long			event_mask[2];
 	unsigned long			watermark_level;
 	u32				shp_addr, per_addr;

@@ -696,6 +697,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
 
 	sdmac->pc_from_device = 0;
 	sdmac->pc_to_device = 0;
+	sdmac->device_to_device = 0;
 
 	switch (peripheral_type) {
 	case IMX_DMATYPE_MEMORY:

@@ -770,6 +772,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
 
 	sdmac->pc_from_device = per_2_emi;
 	sdmac->pc_to_device = emi_2_per;
+	sdmac->device_to_device = per_2_per;
 }
 
 static int sdma_load_context(struct sdma_channel *sdmac)

@@ -782,11 +785,12 @@ static int sdma_load_context(struct sdma_channel *sdmac)
 	int ret;
 	unsigned long flags;
 
-	if (sdmac->direction == DMA_DEV_TO_MEM) {
+	if (sdmac->direction == DMA_DEV_TO_MEM)
 		load_address = sdmac->pc_from_device;
-	} else {
+	else if (sdmac->direction == DMA_DEV_TO_DEV)
+		load_address = sdmac->device_to_device;
+	else
 		load_address = sdmac->pc_to_device;
-	}
 
 	if (load_address < 0)
 		return load_address;

@@ -850,6 +854,12 @@ static int sdma_config_channel(struct sdma_channel *sdmac)
 		sdma_event_enable(sdmac, sdmac->event_id0);
 	}
 
+	if (sdmac->event_id1) {
+		if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events)
+			return -EINVAL;
+		sdma_event_enable(sdmac, sdmac->event_id1);
+	}
+
 	switch (sdmac->peripheral_type) {
 	case IMX_DMATYPE_DSP:
 		sdma_config_ownership(sdmac, false, true, true);

@@ -880,7 +890,12 @@ static int sdma_config_channel(struct sdma_channel *sdmac)
 		/* Watermark Level */
 		sdmac->watermark_level |= sdmac->watermark_level;
 		/* Address */
-		sdmac->shp_addr = sdmac->per_address;
+		if (sdmac->direction == DMA_DEV_TO_DEV) {
+			sdmac->shp_addr = sdmac->per_address2;
+			sdmac->per_addr = sdmac->per_address;
+		} else {
+			sdmac->shp_addr = sdmac->per_address;
+		}
 	} else {
 		sdmac->watermark_level = 0; /* FIXME: M3_BASE_ADDRESS */
 	}

@@ -974,6 +989,7 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan)
 
 	sdmac->peripheral_type = data->peripheral_type;
 	sdmac->event_id0 = data->dma_request;
+	sdmac->event_id1 = data->dma_request2;
 
 	clk_enable(sdmac->sdma->clk_ipg);
 	clk_enable(sdmac->sdma->clk_ahb);

@@ -1213,6 +1229,19 @@ static int sdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
 			sdmac->watermark_level = dmaengine_cfg->src_maxburst *
 						dmaengine_cfg->src_addr_width;
 			sdmac->word_size = dmaengine_cfg->src_addr_width;
+		} else if (dmaengine_cfg->direction == DMA_DEV_TO_DEV) {
+			sdmac->per_address = dmaengine_cfg->src_addr;
+			sdmac->per_address2 = dmaengine_cfg->dst_addr;
+			/*
+			 * For per_2_per sciprt, register r7 requires two
+			 * watermark levels: the lower placed at bits [0-7]
+			 * and the higher one placed at bits [16-23].
+			 */
+			sdmac->watermark_level =
+				dmaengine_cfg->src_maxburst & 0xff;
+			sdmac->watermark_level |=
+				(dmaengine_cfg->dst_maxburst & 0xff) << 16;
+			sdmac->word_size = dmaengine_cfg->dst_addr_width;
 		} else {
 			sdmac->per_address = dmaengine_cfg->dst_addr;
 			sdmac->watermark_level = dmaengine_cfg->dst_maxburst *

@@ -1433,6 +1462,7 @@ static struct dma_chan *sdma_xlate(struct of_phandle_args *dma_spec,
 	data.dma_request = dma_spec->args[0];
 	data.peripheral_type = dma_spec->args[1];
 	data.priority = dma_spec->args[2];
+	data.dma_request2 = 0;
 
 	return dma_request_channel(mask, sdma_filter_fn, &data);
 }

include/linux/platform_data/dma-imx.h +1 -0

index 7aa0e89..6a1357d 100644
@@ -51,6 +51,7 @@ enum imx_dma_prio {
 
 struct imx_dma_data {
 	int dma_request; /* DMA request line */
+	int dma_request2; /* secondary DMA request line */
 	enum sdma_peripheral_type peripheral_type;
 	int priority;
 };

Signature · 1 line

1.8.4

Nicolin Chen

2014-06-27 10:58 UTC #2 lore raw

Re: [RFC][PATCH 1/2] dma: imx-sdma: Add device to device support

Quoted 6 lines · Nicolin Chen

This patch adds DEV_TO_DEV support for i.MX SDMA driver to support data tranfer between two peripheral FIFOs. The per_2_per script requires two peripheral addresses and two DMA requests. So this patch also adds them into private structure.
Signed-off-by Nicolin Chen <[email protected]>

Excuse me, the patch has been here for two weeks. Could anyone please give a comment or an Ack on it?

Thank you,
Nicolin

Quoted 130 lines

---
 drivers/dma/imx-sdma.c                | 40 ++++++++++++++++++++++++++++++-----
 include/linux/platform_data/dma-imx.h |  1 +
 2 files changed, 36 insertions(+), 5 deletions(-)

drivers/dma/imx-sdma.c +35 -5

index 85561dc..5af1a69 100644
@@ -258,8 +258,9 @@ struct sdma_channel {
 	struct sdma_buffer_descriptor	*bd;
 	dma_addr_t			bd_phys;
 	unsigned int			pc_from_device, pc_to_device;
+	unsigned int			device_to_device;
 	unsigned long			flags;
-	dma_addr_t			per_address;
+	dma_addr_t			per_address, per_address2;
 	unsigned long			event_mask[2];
 	unsigned long			watermark_level;
 	u32				shp_addr, per_addr;

@@ -696,6 +697,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
 
 	sdmac->pc_from_device = 0;
 	sdmac->pc_to_device = 0;
+	sdmac->device_to_device = 0;
 
 	switch (peripheral_type) {
 	case IMX_DMATYPE_MEMORY:

@@ -770,6 +772,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
 
 	sdmac->pc_from_device = per_2_emi;
 	sdmac->pc_to_device = emi_2_per;
+	sdmac->device_to_device = per_2_per;
 }
 
 static int sdma_load_context(struct sdma_channel *sdmac)

@@ -782,11 +785,12 @@ static int sdma_load_context(struct sdma_channel *sdmac)
 	int ret;
 	unsigned long flags;
 
-	if (sdmac->direction == DMA_DEV_TO_MEM) {
+	if (sdmac->direction == DMA_DEV_TO_MEM)
 		load_address = sdmac->pc_from_device;
-	} else {
+	else if (sdmac->direction == DMA_DEV_TO_DEV)
+		load_address = sdmac->device_to_device;
+	else
 		load_address = sdmac->pc_to_device;
-	}
 
 	if (load_address < 0)
 		return load_address;

@@ -850,6 +854,12 @@ static int sdma_config_channel(struct sdma_channel *sdmac)
 		sdma_event_enable(sdmac, sdmac->event_id0);
 	}
 
+	if (sdmac->event_id1) {
+		if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events)
+			return -EINVAL;
+		sdma_event_enable(sdmac, sdmac->event_id1);
+	}
+
 	switch (sdmac->peripheral_type) {
 	case IMX_DMATYPE_DSP:
 		sdma_config_ownership(sdmac, false, true, true);

@@ -880,7 +890,12 @@ static int sdma_config_channel(struct sdma_channel *sdmac)
 		/* Watermark Level */
 		sdmac->watermark_level |= sdmac->watermark_level;
 		/* Address */
-		sdmac->shp_addr = sdmac->per_address;
+		if (sdmac->direction == DMA_DEV_TO_DEV) {
+			sdmac->shp_addr = sdmac->per_address2;
+			sdmac->per_addr = sdmac->per_address;
+		} else {
+			sdmac->shp_addr = sdmac->per_address;
+		}
 	} else {
 		sdmac->watermark_level = 0; /* FIXME: M3_BASE_ADDRESS */
 	}

@@ -974,6 +989,7 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan)
 
 	sdmac->peripheral_type = data->peripheral_type;
 	sdmac->event_id0 = data->dma_request;
+	sdmac->event_id1 = data->dma_request2;
 
 	clk_enable(sdmac->sdma->clk_ipg);
 	clk_enable(sdmac->sdma->clk_ahb);

@@ -1213,6 +1229,19 @@ static int sdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
 			sdmac->watermark_level = dmaengine_cfg->src_maxburst *
 						dmaengine_cfg->src_addr_width;
 			sdmac->word_size = dmaengine_cfg->src_addr_width;
+		} else if (dmaengine_cfg->direction == DMA_DEV_TO_DEV) {
+			sdmac->per_address = dmaengine_cfg->src_addr;
+			sdmac->per_address2 = dmaengine_cfg->dst_addr;
+			/*
+			 * For per_2_per sciprt, register r7 requires two
+			 * watermark levels: the lower placed at bits [0-7]
+			 * and the higher one placed at bits [16-23].
+			 */
+			sdmac->watermark_level =
+				dmaengine_cfg->src_maxburst & 0xff;
+			sdmac->watermark_level |=
+				(dmaengine_cfg->dst_maxburst & 0xff) << 16;
+			sdmac->word_size = dmaengine_cfg->dst_addr_width;
 		} else {
 			sdmac->per_address = dmaengine_cfg->dst_addr;
 			sdmac->watermark_level = dmaengine_cfg->dst_maxburst *

@@ -1433,6 +1462,7 @@ static struct dma_chan *sdma_xlate(struct of_phandle_args *dma_spec,
 	data.dma_request = dma_spec->args[0];
 	data.peripheral_type = dma_spec->args[1];
 	data.priority = dma_spec->args[2];
+	data.dma_request2 = 0;
 
 	return dma_request_channel(mask, sdma_filter_fn, &data);
 }

include/linux/platform_data/dma-imx.h +1 -0

index 7aa0e89..6a1357d 100644
@@ -51,6 +51,7 @@ enum imx_dma_prio {
 
 struct imx_dma_data {
 	int dma_request; /* DMA request line */
+	int dma_request2; /* secondary DMA request line */
 	enum sdma_peripheral_type peripheral_type;
 	int priority;
 };

Signature · 1 line

1.8.4

Nicolin Chen

2014-07-11 10:11 UTC #3 lore raw

Re: [RFC][PATCH 1/2] dma: imx-sdma: Add device to device support

In reply to Nicolin Chen

Quoted 6 lines · Nicolin Chen

This patch adds DEV_TO_DEV support for i.MX SDMA driver to support data tranfer between two peripheral FIFOs. The per_2_per script requires two peripheral addresses and two DMA requests. So this patch also adds them into private structure.
Signed-off-by Nicolin Chen <[email protected]>

Hi Vinod,

The patch has been here for a month without any comment.

Could you please help on the review or give me an ack?

I really hope my ASRC driver will be merged within this cycle.

Thank you,
Nicolin

Quoted 130 lines

---
 drivers/dma/imx-sdma.c                | 40 ++++++++++++++++++++++++++++++-----
 include/linux/platform_data/dma-imx.h |  1 +
 2 files changed, 36 insertions(+), 5 deletions(-)

drivers/dma/imx-sdma.c +35 -5

index 85561dc..5af1a69 100644
@@ -258,8 +258,9 @@ struct sdma_channel {
 	struct sdma_buffer_descriptor	*bd;
 	dma_addr_t			bd_phys;
 	unsigned int			pc_from_device, pc_to_device;
+	unsigned int			device_to_device;
 	unsigned long			flags;
-	dma_addr_t			per_address;
+	dma_addr_t			per_address, per_address2;
 	unsigned long			event_mask[2];
 	unsigned long			watermark_level;
 	u32				shp_addr, per_addr;

@@ -696,6 +697,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
 
 	sdmac->pc_from_device = 0;
 	sdmac->pc_to_device = 0;
+	sdmac->device_to_device = 0;
 
 	switch (peripheral_type) {
 	case IMX_DMATYPE_MEMORY:

@@ -770,6 +772,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac,
 
 	sdmac->pc_from_device = per_2_emi;
 	sdmac->pc_to_device = emi_2_per;
+	sdmac->device_to_device = per_2_per;
 }
 
 static int sdma_load_context(struct sdma_channel *sdmac)

@@ -782,11 +785,12 @@ static int sdma_load_context(struct sdma_channel *sdmac)
 	int ret;
 	unsigned long flags;
 
-	if (sdmac->direction == DMA_DEV_TO_MEM) {
+	if (sdmac->direction == DMA_DEV_TO_MEM)
 		load_address = sdmac->pc_from_device;
-	} else {
+	else if (sdmac->direction == DMA_DEV_TO_DEV)
+		load_address = sdmac->device_to_device;
+	else
 		load_address = sdmac->pc_to_device;
-	}
 
 	if (load_address < 0)
 		return load_address;

@@ -850,6 +854,12 @@ static int sdma_config_channel(struct sdma_channel *sdmac)
 		sdma_event_enable(sdmac, sdmac->event_id0);
 	}
 
+	if (sdmac->event_id1) {
+		if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events)
+			return -EINVAL;
+		sdma_event_enable(sdmac, sdmac->event_id1);
+	}
+
 	switch (sdmac->peripheral_type) {
 	case IMX_DMATYPE_DSP:
 		sdma_config_ownership(sdmac, false, true, true);

@@ -880,7 +890,12 @@ static int sdma_config_channel(struct sdma_channel *sdmac)
 		/* Watermark Level */
 		sdmac->watermark_level |= sdmac->watermark_level;
 		/* Address */
-		sdmac->shp_addr = sdmac->per_address;
+		if (sdmac->direction == DMA_DEV_TO_DEV) {
+			sdmac->shp_addr = sdmac->per_address2;
+			sdmac->per_addr = sdmac->per_address;
+		} else {
+			sdmac->shp_addr = sdmac->per_address;
+		}
 	} else {
 		sdmac->watermark_level = 0; /* FIXME: M3_BASE_ADDRESS */
 	}

@@ -974,6 +989,7 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan)
 
 	sdmac->peripheral_type = data->peripheral_type;
 	sdmac->event_id0 = data->dma_request;
+	sdmac->event_id1 = data->dma_request2;
 
 	clk_enable(sdmac->sdma->clk_ipg);
 	clk_enable(sdmac->sdma->clk_ahb);

@@ -1213,6 +1229,19 @@ static int sdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
 			sdmac->watermark_level = dmaengine_cfg->src_maxburst *
 						dmaengine_cfg->src_addr_width;
 			sdmac->word_size = dmaengine_cfg->src_addr_width;
+		} else if (dmaengine_cfg->direction == DMA_DEV_TO_DEV) {
+			sdmac->per_address = dmaengine_cfg->src_addr;
+			sdmac->per_address2 = dmaengine_cfg->dst_addr;
+			/*
+			 * For per_2_per sciprt, register r7 requires two
+			 * watermark levels: the lower placed at bits [0-7]
+			 * and the higher one placed at bits [16-23].
+			 */
+			sdmac->watermark_level =
+				dmaengine_cfg->src_maxburst & 0xff;
+			sdmac->watermark_level |=
+				(dmaengine_cfg->dst_maxburst & 0xff) << 16;
+			sdmac->word_size = dmaengine_cfg->dst_addr_width;
 		} else {
 			sdmac->per_address = dmaengine_cfg->dst_addr;
 			sdmac->watermark_level = dmaengine_cfg->dst_maxburst *

@@ -1433,6 +1462,7 @@ static struct dma_chan *sdma_xlate(struct of_phandle_args *dma_spec,
 	data.dma_request = dma_spec->args[0];
 	data.peripheral_type = dma_spec->args[1];
 	data.priority = dma_spec->args[2];
+	data.dma_request2 = 0;
 
 	return dma_request_channel(mask, sdma_filter_fn, &data);
 }

include/linux/platform_data/dma-imx.h +1 -0

index 7aa0e89..6a1357d 100644
@@ -51,6 +51,7 @@ enum imx_dma_prio {
 
 struct imx_dma_data {
 	int dma_request; /* DMA request line */
+	int dma_request2; /* secondary DMA request line */
 	enum sdma_peripheral_type peripheral_type;
 	int priority;
 };

Signature · 1 line

1.8.4

Nicolin Chen

author reviewer

2014-06-13 10:06 UTC #4 lore raw

RFC PATCH 2/2 ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers

In reply to Nicolin Chen

The Asynchronous Sample Rate Converter (ASRC) converts the sampling rate of a signal associated with an input clock into a signal associated with a different output clock. The driver currently works as a Front End of DPCM with other Back Ends DAI links such as ESAI<->CS42888 and SSI<->WM8962 and SAI. It converts the original sample rate to a common rate supported by Back Ends for playback while converts the common rate of Back Ends to a desired rate. It has three pairs to support three different substreams within totally 10 channels.

Signed-off-by Nicolin Chen <[email protected]>

---

------!RFC!-----
A disscusstion should be made regarding asrc-rate and asrc-width bindings. It's currently put in ASRC which makes these two parameters fixed for all Back Ends. It may be better to put them into sound nodes (machine driver's). However, I can't find a good approach to pass them back into ASRC driver. ------!RFC!-----

 .../devicetree/bindings/sound/fsl,asrc.txt         |   62 ++
 sound/soc/fsl/Kconfig                              |    9 +
 sound/soc/fsl/Makefile                             |    2 +
 sound/soc/fsl/fsl_asrc.c                           | 1031 ++++++++++++++++++++
 sound/soc/fsl/fsl_asrc.h                           |  431 ++++++++
 sound/soc/fsl/fsl_asrc_dma.c                       |  385 ++++++++
 6 files changed, 1920 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,asrc.txt
 create mode 100644 sound/soc/fsl/fsl_asrc.c
 create mode 100644 sound/soc/fsl/fsl_asrc.h
 create mode 100644 sound/soc/fsl/fsl_asrc_dma.c

Documentation/devicetree/bindings/sound/fsl,asrc.txt new file +62 -0

new file mode 100644
index 0000000..637028c
@@ -0,0 +1,62 @@
+Freescale Asynchronous Sample Rate Converter (ASRC) Controller
+
+The Asynchronous Sample Rate Converter (ASRC) converts the sampling rate of a
+signal associated with an input clock into a signal associated with a different
+output clock. The driver currently works as a Front End of DPCM with other Back
+Ends Audio controller such as ESAI, SSI and SAI. It has three pairs to support
+three substreams within totally 10 channels.
+
+Required properties:
+
+  - compatible : Compatible list, must contain "fsl,imx35-asrc" or
+    "fsl,imx53-asrc".
+
+  - reg : Offset and length of the register set for the device.
+
+  - interrupts : Contains the spdif interrupt.
+
+  - dmas : Generic dma devicetree binding as described in
+	   Documentation/devicetree/bindings/dma/dma.txt.
+
+  - dma-names : Six dmas have to be defined: "rxa", "rxb", "rxc", "txa", "txb",
+		and "txc".
+
+  - clocks : Contains an entry for each entry in clock-names.
+
+  - clock-names : Includes the following entries:
+	"mem"		Peripheral access clock to access registers.
+	"ipg"		Peripheral clock to driver module.
+	"asrck_<0-f>"	Clock sources for input and output clock.
+
+   - big-endian : If this property is absent, the native endian mode will
+		  be in use as default, or the big endian mode will be in use
+		  for all the device registers.
+
+   - fsl,asrc-rate : Defines a mutual sample rate used by Back End DAI link.
+
+   - fsl,asrc-width : Defines a mutual sample width used by Back End DAI link.
+
+Example:
+
+asrc: asrc@02034000 {
+	compatible = "fsl,imx53-asrc";
+	reg = <0x02034000 0x4000>;
+	interrupts = <0 50 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&clks 107>, <&clks 107>, <&clks 0>,
+	       <&clks 0>, <&clks 0>, <&clks 0>, <&clks 0>,
+	       <&clks 0>, <&clks 0>, <&clks 0>, <&clks 0>,
+	       <&clks 0>, <&clks 0>, <&clks 0>, <&clks 0>,
+	       <&clks 107>, <&clks 0>, <&clks 0>;
+	clock-names = "mem", "ipg", "asrck0",
+		"asrck_1", "asrck_2", "asrck_3", "asrck_4",
+		"asrck_5", "asrck_6", "asrck_7", "asrck_8",
+		"asrck_9", "asrck_a", "asrck_b", "asrck_c",
+		"asrck_d", "asrck_e", "asrck_f";
+	dmas = <&sdma 17 23 1>, <&sdma 18 23 1>, <&sdma 19 23 1>,
+	     <&sdma 20 23 1>, <&sdma 21 23 1>, <&sdma 22 23 1>;
+	dma-names = "rxa", "rxb", "rxc",
+		"txa", "txb", "txc";
+	fsl,asrc-rate  = <48000>;
+	fsl,asrc-width = <16>;
+	status = "okay";
+};

sound/soc/fsl/Kconfig +9 -0

index aeccdd4..b269714 100644
@@ -2,6 +2,15 @@ menu "SoC Audio for Freescale CPUs"
 
 comment "Common SoC Audio options for Freescale CPUs:"
 
+config SND_SOC_FSL_ASRC
+	tristate "Asynchronous Sample Rate Converter (ASRC) module support"
+	select REGMAP_MMIO
+	help
+	  Say Y if you want to add Asynchronous Sample Rate Converter (ASRC)
+	  support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
 config SND_SOC_FSL_SAI
 	tristate "Synchronous Audio Interface (SAI) module support"
 	select REGMAP_MMIO

sound/soc/fsl/Makefile +2 -0

index ce49570..ff7ee2c 100644
@@ -11,6 +11,7 @@ snd-soc-p1022-rdk-objs := p1022_rdk.o
 obj-$(CONFIG_SND_SOC_P1022_RDK) += snd-soc-p1022-rdk.o
 
 # Freescale SSI/DMA/SAI/SPDIF Support
+snd-soc-fsl-asrc-objs := fsl_asrc.o fsl_asrc_dma.o
 snd-soc-fsl-sai-objs := fsl_sai.o
 snd-soc-fsl-ssi-y := fsl_ssi.o
 snd-soc-fsl-ssi-$(CONFIG_DEBUG_FS) += fsl_ssi_dbg.o

@@ -18,6 +19,7 @@ snd-soc-fsl-spdif-objs := fsl_spdif.o
 snd-soc-fsl-esai-objs := fsl_esai.o
 snd-soc-fsl-utils-objs := fsl_utils.o
 snd-soc-fsl-dma-objs := fsl_dma.o
+obj-$(CONFIG_SND_SOC_FSL_ASRC) += snd-soc-fsl-asrc.o
 obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o
 obj-$(CONFIG_SND_SOC_FSL_SSI) += snd-soc-fsl-ssi.o
 obj-$(CONFIG_SND_SOC_FSL_SPDIF) += snd-soc-fsl-spdif.o

sound/soc/fsl/fsl_asrc.c new file +1031 -0

1,031 lines not on this page · raw message

sound/soc/fsl/fsl_asrc.h new file +431 -0

431 lines not on this page · raw message

sound/soc/fsl/fsl_asrc_dma.c new file +385 -0

385 lines not on this page · raw message

Signature · 1 line

1.8.4

Nicolin Chen

2014-07-24 08:25 UTC #5 lore raw

In reply to Nicolin Chen

Quoted 5 lines · Nicolin Chen

This series of patches have a direct dependency between them. So we might need to push them into one branch. And sorry for this :(
Patch-1 adds device to device support in SDMA driver along with a secondary request in struct imx_dma_data which's requred in the Patch-2 ASRC driver.

I just sent a new version V2. So please disregard this version.

Thanks all,
Nicolin

Quoted 5 lines

Nicolin Chen (2):
dma: imx-sdma: Add device to device support
ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers

Quoted 17 lines

 .../devicetree/bindings/sound/fsl,asrc.txt         |   62 ++
 drivers/dma/imx-sdma.c                             |   40 +-
 include/linux/platform_data/dma-imx.h              |    1 +
 sound/soc/fsl/Kconfig                              |    9 +
 sound/soc/fsl/Makefile                             |    2 +
 sound/soc/fsl/fsl_asrc.c                           | 1031 ++++++++++++++++++++
 sound/soc/fsl/fsl_asrc.h                           |  431 ++++++++
 sound/soc/fsl/fsl_asrc_dma.c                       |  385 ++++++++
 8 files changed, 1956 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,asrc.txt
 create mode 100644 sound/soc/fsl/fsl_asrc.c
 create mode 100644 sound/soc/fsl/fsl_asrc.h
 create mode 100644 sound/soc/fsl/fsl_asrc_dma.c

Signature · 1 line

1.8.4

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