diff --git a/arch/arm/configs/imx_v7_defconfig b/arch/arm/configs/imx_v7_defconfig index 8015a85f1390..c9cb15ae91dc 100644 --- a/arch/arm/configs/imx_v7_defconfig +++ b/arch/arm/configs/imx_v7_defconfig @@ -266,6 +266,7 @@ CONFIG_SND_SOC_IMX_WM8960=y CONFIG_SND_SOC_IMX_WM8958=y CONFIG_SND_SOC_IMX_CS42888=y CONFIG_SND_SOC_IMX_WM8962=y +CONFIG_SND_SOC_IMX_SII902X=y CONFIG_SND_SOC_IMX_SGTL5000=y CONFIG_SND_SOC_IMX_MQS=y CONFIG_SND_SOC_IMX_SPDIF=y diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 89f15e143e86..630a4d763d99 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -252,6 +252,17 @@ config SND_SOC_IMX_WM8960 Say Y if you want to add support for SoC audio on an i.MX board with a wm8960 codec. +config SND_SOC_IMX_SII902X + tristate "SoC Audio support for i.MX boards with sii902x" + depends on OF && I2C + select SND_SOC_IMX_PCM_DMA + select SND_SOC_FSL_SAI + select SND_SOC_FSL_UTILS + help + SoC Audio support for i.MX boards with SII902X + Say Y if you want to add support for SoC audio on an i.MX board with + a sii902x. + config SND_SOC_IMX_WM8958 tristate "SoC Audio support for i.MX boards with wm8958" depends on OF && I2C diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 5462f15ae418..3e8877ecf479 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -62,6 +62,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o snd-soc-imx-wm8958-objs := imx-wm8958.o snd-soc-imx-wm8960-objs := imx-wm8960.o snd-soc-imx-wm8962-objs := imx-wm8962.o +snd-soc-imx-sii902x-objs := imx-sii902x.o snd-soc-imx-spdif-objs := imx-spdif.o snd-soc-imx-mc13783-objs := imx-mc13783.o snd-soc-imx-mqs-objs := imx-mqs.o @@ -78,6 +79,7 @@ obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o obj-${CONFIG_SND_SOC_IMX_WM8958} += snd-soc-imx-wm8958.o obj-$(CONFIG_SND_SOC_IMX_WM8960) += snd-soc-imx-wm8960.o obj-$(CONFIG_SND_SOC_IMX_WM8962) += snd-soc-imx-wm8962.o +obj-$(CONFIG_SND_SOC_IMX_SII902X) += snd-soc-imx-sii902x.o obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o obj-$(CONFIG_SND_SOC_IMX_MC13783) += snd-soc-imx-mc13783.o obj-$(CONFIG_SND_SOC_IMX_MQS) += snd-soc-imx-mqs.o diff --git a/sound/soc/fsl/imx-sii902x.c b/sound/soc/fsl/imx-sii902x.c new file mode 100644 index 000000000000..61154776b0fc --- /dev/null +++ b/sound/soc/fsl/imx-sii902x.c @@ -0,0 +1,242 @@ +/* + * Copyright (C) 2015 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define SUPPORT_RATE_NUM 10 + +struct imx_sii902x_data { + struct snd_soc_dai_link dai; + struct snd_soc_card card; + struct i2c_client *sii902x; +}; + +static int imx_sii902x_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + static struct snd_pcm_hw_constraint_list constraint_rates; + static u32 support_rates[SUPPORT_RATE_NUM]; + int ret; + + support_rates[0] = 32000; + support_rates[1] = 48000; + constraint_rates.list = support_rates; + constraint_rates.count = 2; + + ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &constraint_rates); + if (ret) + return ret; + + return 0; +} + +static int imx_sii902x_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_card *card = rtd->card; + struct device *dev = card->dev; + struct imx_sii902x_data *data = snd_soc_card_get_drvdata(card); + int ret; + unsigned char reg; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, + SND_SOC_DAIFMT_LEFT_J | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS); + if (ret) { + dev_err(dev, "failed to set cpu dai fmt: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT); + if (ret) { + dev_err(dev, "failed to set cpu sysclk: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0, 2, 24); + if (ret) { + dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); + return ret; + } + + /* sii90sx hdmi audio setup */ + i2c_smbus_write_byte_data(data->sii902x, 0x26, 0x90); + i2c_smbus_write_byte_data(data->sii902x, 0x20, 0x2d); + i2c_smbus_write_byte_data(data->sii902x, 0x1f, 0x88); + i2c_smbus_write_byte_data(data->sii902x, 0x1f, 0x91); + i2c_smbus_write_byte_data(data->sii902x, 0x1f, 0xa2); + i2c_smbus_write_byte_data(data->sii902x, 0x1f, 0xb3); + i2c_smbus_write_byte_data(data->sii902x, 0x27, 0); + switch (params_rate(params)) { + case 44100: + reg = 0; + break; + case 48000: + reg = 0x2; + break; + case 32000: + reg = 0x3; + break; + case 88200: + reg = 0x8; + break; + case 96000: + reg = 0xa; + break; + case 176400: + reg = 0xc; + break; + case 192000: + reg = 0xe; + break; + default: + reg = 0x1; + break; + } + i2c_smbus_write_byte_data(data->sii902x, 0x24, reg); + i2c_smbus_write_byte_data(data->sii902x, 0x25, 0x0b); + i2c_smbus_write_byte_data(data->sii902x, 0x26, 0x80); + + return 0; +} + +static int imx_sii902x_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct imx_sii902x_data *data = snd_soc_card_get_drvdata(card); + + i2c_smbus_write_byte_data(data->sii902x, 0x26, 0x10); + + return 0; +} + +static struct snd_soc_ops imx_sii902x_ops = { + .startup = imx_sii902x_startup, + .hw_params = imx_sii902x_hw_params, + .hw_free = imx_sii902x_hw_free, +}; + +static int imx_sii902x_probe(struct platform_device *pdev) +{ + struct device_node *cpu_np, *sii902x_np; + struct platform_device *cpu_pdev; + struct imx_sii902x_data *data; + int ret; + + cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "cpu dai phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + sii902x_np = of_parse_phandle(pdev->dev.of_node, "hdmi-controler", 0); + if (!sii902x_np) { + dev_err(&pdev->dev, "sii902x phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + cpu_pdev = of_find_device_by_node(cpu_np); + if (!cpu_pdev) { + dev_err(&pdev->dev, "failed to find SAI platform device\n"); + ret = -EINVAL; + goto fail; + } + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto fail; + } + + data->sii902x = of_find_i2c_device_by_node(sii902x_np); + if (!data->sii902x) { + dev_err(&pdev->dev, "failed to find sii902x i2c client\n"); + ret = -EPROBE_DEFER; + goto fail; + } + + data->dai.name = "sii902x hdmi"; + data->dai.stream_name = "sii902x hdmi"; + data->dai.codec_dai_name = "snd-soc-dummy-dai"; + data->dai.codec_name = "snd-soc-dummy"; + data->dai.cpu_dai_name = dev_name(&cpu_pdev->dev); + data->dai.platform_of_node = cpu_np; + data->dai.ops = &imx_sii902x_ops; + data->dai.playback_only = true; + data->dai.capture_only = false; + data->dai.dai_fmt = SND_SOC_DAIFMT_LEFT_J | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + + data->card.dev = &pdev->dev; + ret = snd_soc_of_parse_card_name(&data->card, "model"); + if (ret) + goto fail; + data->card.num_links = 1; + data->card.dai_link = &data->dai; + + platform_set_drvdata(pdev, &data->card); + snd_soc_card_set_drvdata(&data->card, data); + ret = devm_snd_soc_register_card(&pdev->dev, &data->card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + goto fail; + } + +fail: + if (cpu_np) + of_node_put(cpu_np); + if (sii902x_np) + of_node_put(sii902x_np); + return ret; +} + +static const struct of_device_id imx_sii902x_dt_ids[] = { + { .compatible = "fsl,imx-audio-sii902x", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_sii902x_dt_ids); + +static struct platform_driver imx_sii902x_driver = { + .driver = { + .name = "imx-sii902x", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = imx_sii902x_dt_ids, + }, + .probe = imx_sii902x_probe, +}; +module_platform_driver(imx_sii902x_driver); + +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("Freescale i.MX SII902X hdmi audio ASoC machine driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:imx-sii902x");