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ASoC: eukrea-tlv320: Add DT support.

Browse Source 
Cc: Eric Bénard <eric@eukrea.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: alsa-devel@alsa-project.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Denis Carikli 2014-01-15 18:23:25 +01:00 committed by Mark Brown
parent ea9f8535a4
commit 66f232908d
3 changed files with 121 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
Documentation/devicetree/bindings/sound/eukrea-tlv320.txt Normal file
View File

@ -0,0 +1,21 @@
Audio complex for Eukrea boards with tlv320aic23 codec.
Required properties:
- compatible : "eukrea,asoc-tlv320"
- eukrea,model : The user-visible name of this sound complex.
- ssi-controller : The phandle of the SSI controller.
- fsl,mux-int-port : The internal port of the i.MX audio muxer (AUDMUX).
- fsl,mux-ext-port : The external port of the i.MX audio muxer.
Note: The AUDMUX port numbering should start at 1, which is consistent with
hardware manual.
Example:
sound {
compatible = "eukrea,asoc-tlv320";
eukrea,model = "imx51-eukrea-tlv320aic23";
ssi-controller = <&ssi2>;
fsl,mux-int-port = <2>;
fsl,mux-ext-port = <3>;
};

5
sound/soc/fsl/Kconfig
View File

@ -168,12 +168,15 @@ config SND_SOC_EUKREA_TLV320
depends on MACH_EUKREA_MBIMX27_BASEBOARD \
|| MACH_EUKREA_MBIMXSD25_BASEBOARD \
|| MACH_EUKREA_MBIMXSD35_BASEBOARD \
|| MACH_EUKREA_MBIMXSD51_BASEBOARD
|| MACH_EUKREA_MBIMXSD51_BASEBOARD \
|| (OF && ARM)
depends on I2C
select SND_SOC_TLV320AIC23
select SND_SOC_IMX_PCM_FIQ
select SND_SOC_IMX_AUDMUX
select SND_SOC_IMX_SSI
select SND_SOC_FSL_SSI
select SND_SOC_IMX_PCM_DMA
help
Enable I2S based access to the TLV320AIC23B codec attached
to the SSI interface

108
sound/soc/fsl/eukrea-tlv320.c
View File

@ -15,8 +15,11 @@
*
*/
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <sound/core.h>
@ -26,6 +29,7 @@
#include "../codecs/tlv320aic23.h"
#include "imx-ssi.h"
#include "fsl_ssi.h"
#include "imx-audmux.h"
#define CODEC_CLOCK 12000000
@ -41,7 +45,8 @@ static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM);
if (ret) {
/* fsl_ssi lacks the set_fmt ops. */
if (ret && ret != -ENOTSUPP) {
dev_err(cpu_dai->dev,
"Failed to set the cpu dai format.\n");
return ret;
@ -63,11 +68,13 @@ static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
"Failed to set the codec sysclk.\n");
return ret;
}
snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
SND_SOC_CLOCK_IN);
if (ret) {
/* fsl_ssi lacks the set_sysclk ops */
if (ret && ret != -EINVAL) {
dev_err(cpu_dai->dev,
"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
return ret;
@ -84,14 +91,10 @@ static struct snd_soc_dai_link eukrea_tlv320_dai = {
.name = "tlv320aic23",
.stream_name = "TLV320AIC23",
.codec_dai_name = "tlv320aic23-hifi",
.platform_name = "imx-ssi.0",
.codec_name = "tlv320aic23-codec.0-001a",
.cpu_dai_name = "imx-ssi.0",
.ops = &eukrea_tlv320_snd_ops,
};
static struct snd_soc_card eukrea_tlv320 = {
.name = "cpuimx-audio",
.owner = THIS_MODULE,
.dai_link = &eukrea_tlv320_dai,
.num_links = 1,
@ -101,8 +104,65 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
{
int ret;
int int_port = 0, ext_port;
struct device_node *np = pdev->dev.of_node;
struct device_node *ssi_np, *codec_np;
if (machine_is_eukrea_cpuimx27()) {
eukrea_tlv320.dev = &pdev->dev;
if (np) {
ret = snd_soc_of_parse_card_name(&eukrea_tlv320,
"eukrea,model");
if (ret) {
dev_err(&pdev->dev,
"eukrea,model node missing or invalid.\n");
goto err;
}
ssi_np = of_parse_phandle(pdev->dev.of_node,
"ssi-controller", 0);
if (!ssi_np) {
dev_err(&pdev->dev,
"ssi-controller missing or invalid.\n");
ret = -ENODEV;
goto err;
}
codec_np = of_parse_phandle(ssi_np, "codec-handle", 0);
if (codec_np)
eukrea_tlv320_dai.codec_of_node = codec_np;
else
dev_err(&pdev->dev, "codec-handle node missing or invalid.\n");
ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port);
if (ret) {
dev_err(&pdev->dev,
"fsl,mux-int-port node missing or invalid.\n");
return ret;
}
ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port);
if (ret) {
dev_err(&pdev->dev,
"fsl,mux-ext-port node missing or invalid.\n");
return ret;
}
/*
* The port numbering in the hardware manual starts at 1, while
* the audmux API expects it starts at 0.
*/
int_port--;
ext_port--;
eukrea_tlv320_dai.cpu_of_node = ssi_np;
eukrea_tlv320_dai.platform_of_node = ssi_np;
} else {
eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0";
eukrea_tlv320_dai.platform_name = "imx-ssi.0";
eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a";
eukrea_tlv320.name = "cpuimx-audio";
}
if (machine_is_eukrea_cpuimx27() ||
of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
IMX_AUDMUX_V1_PCR_SYN |
IMX_AUDMUX_V1_PCR_TFSDIR |
@ -119,8 +179,12 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
);
} else if (machine_is_eukrea_cpuimx25sd() ||
machine_is_eukrea_cpuimx35sd() ||
machine_is_eukrea_cpuimx51sd()) {
ext_port = machine_is_eukrea_cpuimx25sd() ? 4 : 3;
machine_is_eukrea_cpuimx51sd() ||
of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
if (!np)
ext_port = machine_is_eukrea_cpuimx25sd() ?
4 : 3;
imx_audmux_v2_configure_port(int_port,
IMX_AUDMUX_V2_PTCR_SYN |
IMX_AUDMUX_V2_PTCR_TFSDIR |
@ -134,14 +198,27 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
);
} else {
/* return happy. We might run on a totally different machine */
return 0;
if (np) {
/* The eukrea,asoc-tlv320 driver was explicitely
* requested (through the device tree).
*/
dev_err(&pdev->dev,
"Missing or invalid audmux DT node.\n");
return -ENODEV;
} else {
/* Return happy.
* We might run on a totally different machine.
*/
return 0;
}
}
eukrea_tlv320.dev = &pdev->dev;
ret = snd_soc_register_card(&eukrea_tlv320);
err:
if (ret)
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
if (np)
of_node_put(ssi_np);
return ret;
}
@ -153,10 +230,17 @@ static int eukrea_tlv320_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id imx_tlv320_dt_ids[] = {
{ .compatible = "eukrea,asoc-tlv320"},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids);
static struct platform_driver eukrea_tlv320_driver = {
.driver = {
.name = "eukrea_tlv320",
.owner = THIS_MODULE,
.of_match_table = imx_tlv320_dt_ids,
},
.probe = eukrea_tlv320_probe,
.remove = eukrea_tlv320_remove,