ASoC: eukrea-tlv320: Add DT support.
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>
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21
Documentation/devicetree/bindings/sound/eukrea-tlv320.txt
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21
Documentation/devicetree/bindings/sound/eukrea-tlv320.txt
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@ -0,0 +1,21 @@
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Audio complex for Eukrea boards with tlv320aic23 codec.
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Required properties:
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- compatible : "eukrea,asoc-tlv320"
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- eukrea,model : The user-visible name of this sound complex.
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- ssi-controller : The phandle of the SSI controller.
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- fsl,mux-int-port : The internal port of the i.MX audio muxer (AUDMUX).
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- fsl,mux-ext-port : The external port of the i.MX audio muxer.
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Note: The AUDMUX port numbering should start at 1, which is consistent with
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hardware manual.
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Example:
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sound {
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compatible = "eukrea,asoc-tlv320";
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eukrea,model = "imx51-eukrea-tlv320aic23";
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ssi-controller = <&ssi2>;
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fsl,mux-int-port = <2>;
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fsl,mux-ext-port = <3>;
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};
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@ -168,12 +168,15 @@ config SND_SOC_EUKREA_TLV320
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depends on MACH_EUKREA_MBIMX27_BASEBOARD \
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|| MACH_EUKREA_MBIMXSD25_BASEBOARD \
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|| MACH_EUKREA_MBIMXSD35_BASEBOARD \
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|| MACH_EUKREA_MBIMXSD51_BASEBOARD
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|| MACH_EUKREA_MBIMXSD51_BASEBOARD \
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|| (OF && ARM)
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depends on I2C
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select SND_SOC_TLV320AIC23
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select SND_SOC_IMX_PCM_FIQ
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select SND_SOC_IMX_AUDMUX
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select SND_SOC_IMX_SSI
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select SND_SOC_FSL_SSI
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select SND_SOC_IMX_PCM_DMA
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help
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Enable I2S based access to the TLV320AIC23B codec attached
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to the SSI interface
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@ -15,8 +15,11 @@
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*
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*/
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#include <linux/errno.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/device.h>
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#include <linux/i2c.h>
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#include <sound/core.h>
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@ -26,6 +29,7 @@
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#include "../codecs/tlv320aic23.h"
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#include "imx-ssi.h"
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#include "fsl_ssi.h"
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#include "imx-audmux.h"
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#define CODEC_CLOCK 12000000
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@ -41,7 +45,8 @@ static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (ret) {
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/* fsl_ssi lacks the set_fmt ops. */
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if (ret && ret != -ENOTSUPP) {
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dev_err(cpu_dai->dev,
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"Failed to set the cpu dai format.\n");
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return ret;
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@ -63,11 +68,13 @@ static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
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"Failed to set the codec sysclk.\n");
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return ret;
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}
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snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
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ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
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SND_SOC_CLOCK_IN);
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if (ret) {
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/* fsl_ssi lacks the set_sysclk ops */
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if (ret && ret != -EINVAL) {
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dev_err(cpu_dai->dev,
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"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
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return ret;
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@ -84,14 +91,10 @@ static struct snd_soc_dai_link eukrea_tlv320_dai = {
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.name = "tlv320aic23",
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.stream_name = "TLV320AIC23",
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.codec_dai_name = "tlv320aic23-hifi",
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.platform_name = "imx-ssi.0",
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.codec_name = "tlv320aic23-codec.0-001a",
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.cpu_dai_name = "imx-ssi.0",
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.ops = &eukrea_tlv320_snd_ops,
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};
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static struct snd_soc_card eukrea_tlv320 = {
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.name = "cpuimx-audio",
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.owner = THIS_MODULE,
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.dai_link = &eukrea_tlv320_dai,
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.num_links = 1,
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@ -101,8 +104,65 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
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{
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int ret;
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int int_port = 0, ext_port;
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struct device_node *np = pdev->dev.of_node;
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struct device_node *ssi_np, *codec_np;
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if (machine_is_eukrea_cpuimx27()) {
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eukrea_tlv320.dev = &pdev->dev;
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if (np) {
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ret = snd_soc_of_parse_card_name(&eukrea_tlv320,
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"eukrea,model");
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if (ret) {
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dev_err(&pdev->dev,
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"eukrea,model node missing or invalid.\n");
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goto err;
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}
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ssi_np = of_parse_phandle(pdev->dev.of_node,
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"ssi-controller", 0);
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if (!ssi_np) {
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dev_err(&pdev->dev,
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"ssi-controller missing or invalid.\n");
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ret = -ENODEV;
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goto err;
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}
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codec_np = of_parse_phandle(ssi_np, "codec-handle", 0);
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if (codec_np)
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eukrea_tlv320_dai.codec_of_node = codec_np;
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else
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dev_err(&pdev->dev, "codec-handle node missing or invalid.\n");
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ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port);
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if (ret) {
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dev_err(&pdev->dev,
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"fsl,mux-int-port node missing or invalid.\n");
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return ret;
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}
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ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port);
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if (ret) {
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dev_err(&pdev->dev,
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"fsl,mux-ext-port node missing or invalid.\n");
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return ret;
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}
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/*
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* The port numbering in the hardware manual starts at 1, while
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* the audmux API expects it starts at 0.
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*/
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int_port--;
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ext_port--;
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eukrea_tlv320_dai.cpu_of_node = ssi_np;
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eukrea_tlv320_dai.platform_of_node = ssi_np;
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} else {
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eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0";
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eukrea_tlv320_dai.platform_name = "imx-ssi.0";
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eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a";
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eukrea_tlv320.name = "cpuimx-audio";
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}
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if (machine_is_eukrea_cpuimx27() ||
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of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
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imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
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IMX_AUDMUX_V1_PCR_SYN |
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IMX_AUDMUX_V1_PCR_TFSDIR |
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@ -119,8 +179,12 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
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);
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} else if (machine_is_eukrea_cpuimx25sd() ||
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machine_is_eukrea_cpuimx35sd() ||
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machine_is_eukrea_cpuimx51sd()) {
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ext_port = machine_is_eukrea_cpuimx25sd() ? 4 : 3;
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machine_is_eukrea_cpuimx51sd() ||
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of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
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if (!np)
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ext_port = machine_is_eukrea_cpuimx25sd() ?
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4 : 3;
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imx_audmux_v2_configure_port(int_port,
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IMX_AUDMUX_V2_PTCR_SYN |
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IMX_AUDMUX_V2_PTCR_TFSDIR |
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@ -134,14 +198,27 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
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IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
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);
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} else {
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/* return happy. We might run on a totally different machine */
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return 0;
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if (np) {
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/* The eukrea,asoc-tlv320 driver was explicitely
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* requested (through the device tree).
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*/
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dev_err(&pdev->dev,
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"Missing or invalid audmux DT node.\n");
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return -ENODEV;
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} else {
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/* Return happy.
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* We might run on a totally different machine.
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*/
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return 0;
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}
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}
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eukrea_tlv320.dev = &pdev->dev;
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ret = snd_soc_register_card(&eukrea_tlv320);
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err:
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if (ret)
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
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if (np)
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of_node_put(ssi_np);
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return ret;
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}
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return 0;
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}
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static const struct of_device_id imx_tlv320_dt_ids[] = {
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{ .compatible = "eukrea,asoc-tlv320"},
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids);
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static struct platform_driver eukrea_tlv320_driver = {
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.driver = {
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.name = "eukrea_tlv320",
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.owner = THIS_MODULE,
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.of_match_table = imx_tlv320_dt_ids,
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},
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.probe = eukrea_tlv320_probe,
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.remove = eukrea_tlv320_remove,
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