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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /sound/soc/fsl/eukrea-tlv320.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/fsl/eukrea-tlv320.c')
-rw-r--r-- | sound/soc/fsl/eukrea-tlv320.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c new file mode 100644 index 000000000..9af4c4a35 --- /dev/null +++ b/sound/soc/fsl/eukrea-tlv320.c @@ -0,0 +1,235 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode +// +// Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com> +// +// based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c +// which is Copyright 2009 Simtec Electronics +// and on sound/soc/imx/phycore-ac97.c which is +// Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> + +#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> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <asm/mach-types.h> + +#include "../codecs/tlv320aic23.h" +#include "imx-ssi.h" +#include "imx-audmux.h" + +#define CODEC_CLOCK 12000000 + +static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + int ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, + CODEC_CLOCK, SND_SOC_CLOCK_OUT); + if (ret) { + dev_err(cpu_dai->dev, + "Failed to set the codec sysclk.\n"); + return ret; + } + + snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0); + + ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, + SND_SOC_CLOCK_IN); + /* 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; + } + + return 0; +} + +static const struct snd_soc_ops eukrea_tlv320_snd_ops = { + .hw_params = eukrea_tlv320_hw_params, +}; + +SND_SOC_DAILINK_DEFS(hifi, + DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic23-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +static struct snd_soc_dai_link eukrea_tlv320_dai = { + .name = "tlv320aic23", + .stream_name = "TLV320AIC23", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBP_CFP, + .ops = &eukrea_tlv320_snd_ops, + SND_SOC_DAILINK_REG(hifi), +}; + +static struct snd_soc_card eukrea_tlv320 = { + .owner = THIS_MODULE, + .dai_link = &eukrea_tlv320_dai, + .num_links = 1, +}; + +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 = NULL, *codec_np = NULL, *tmp_np = NULL; + + 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.codecs->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"); + goto err; + } + 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"); + goto err; + } + + /* + * 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.cpus->of_node = ssi_np; + eukrea_tlv320_dai.platforms->of_node = ssi_np; + } else { + eukrea_tlv320_dai.cpus->dai_name = "imx-ssi.0"; + eukrea_tlv320_dai.platforms->name = "imx-ssi.0"; + eukrea_tlv320_dai.codecs->name = "tlv320aic23-codec.0-001a"; + eukrea_tlv320.name = "cpuimx-audio"; + } + + if (machine_is_eukrea_cpuimx27() || + (tmp_np = 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 | + IMX_AUDMUX_V1_PCR_TCLKDIR | + IMX_AUDMUX_V1_PCR_RFSDIR | + IMX_AUDMUX_V1_PCR_RCLKDIR | + IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | + IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | + IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) + ); + imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4, + IMX_AUDMUX_V1_PCR_SYN | + IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) + ); + of_node_put(tmp_np); + } else if (machine_is_eukrea_cpuimx25sd() || + machine_is_eukrea_cpuimx35sd() || + machine_is_eukrea_cpuimx51sd() || + (tmp_np = 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 | + IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | + IMX_AUDMUX_V2_PTCR_TCLKDIR | + IMX_AUDMUX_V2_PTCR_TCSEL(ext_port), + IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port) + ); + imx_audmux_v2_configure_port(ext_port, + IMX_AUDMUX_V2_PTCR_SYN, + IMX_AUDMUX_V2_PDCR_RXDSEL(int_port) + ); + of_node_put(tmp_np); + } else { + if (np) { + /* The eukrea,asoc-tlv320 driver was explicitly + * 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; + } + } + + ret = snd_soc_register_card(&eukrea_tlv320); +err: + if (ret) + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + of_node_put(ssi_np); + + return ret; +} + +static int eukrea_tlv320_remove(struct platform_device *pdev) +{ + snd_soc_unregister_card(&eukrea_tlv320); + + 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", + .of_match_table = imx_tlv320_dt_ids, + }, + .probe = eukrea_tlv320_probe, + .remove = eukrea_tlv320_remove, +}; + +module_platform_driver(eukrea_tlv320_driver); + +MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>"); +MODULE_DESCRIPTION("CPUIMX ALSA SoC driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:eukrea_tlv320"); 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