[PATCH 04/11] ASoC: Intel: avs: Add pcm3168a machine board

Cezary Rojewski
2025-01-22T17:40:49Z

To support AVS-pcm3168a configuration add machine board connecting AVS
platform component driver with pcm3168a codec one.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
---
sound/soc/intel/avs/boards/Kconfig | 10 ++
sound/soc/intel/avs/boards/Makefile | 2 +
sound/soc/intel/avs/boards/pcm3168a.c | 162 ++++++++++++++++++++++++++
3 files changed, 174 insertions(+)
create mode 100644 sound/soc/intel/avs/boards/pcm3168a.c

diff --git a/sound/soc/intel/avs/boards/Kconfig b/sound/soc/intel/avs/boards/Kconfig
index 00b0f6c176d6..ba4bee42124c 100644
--- a/sound/soc/intel/avs/boards/Kconfig
+++ b/sound/soc/intel/avs/boards/Kconfig
@@ -87,6 +87,16 @@ config SND_SOC_INTEL_AVS_MACH_NAU8825
Say Y or m if you have such a device. This is a recommended option.
If unsure select "N".

+config SND_SOC_INTEL_AVS_MACH_PCM3168A
+ tristate "pcm3168a I2S board"
+ depends on I2C
+ depends on MFD_INTEL_LPSS || COMPILE_TEST
+ select SND_SOC_PCM3168A_I2C
+ help
+ This adds support for AVS with PCM3168A I2C codec configuration.
+ Say Y or m if you have such a device. This is a recommended option.
+ If unsure select "N".
+
config SND_SOC_INTEL_AVS_MACH_PROBE
tristate "Probing (data) board"
depends on DEBUG_FS
diff --git a/sound/soc/intel/avs/boards/Makefile b/sound/soc/intel/avs/boards/Makefile
index 4fbd936ffb3e..a95256b94dc8 100644
--- a/sound/soc/intel/avs/boards/Makefile
+++ b/sound/soc/intel/avs/boards/Makefile
@@ -9,6 +9,7 @@ snd-soc-avs-max98927-y := max98927.o
snd-soc-avs-max98357a-y := max98357a.o
snd-soc-avs-max98373-y := max98373.o
snd-soc-avs-nau8825-y := nau8825.o
+snd-soc-avs-pcm3168a-y := pcm3168a.o
snd-soc-avs-probe-y := probe.o
snd-soc-avs-rt274-y := rt274.o
snd-soc-avs-rt286-y := rt286.o
@@ -27,6 +28,7 @@ obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_MAX98927) += snd-soc-avs-max98927.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_MAX98357A) += snd-soc-avs-max98357a.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_MAX98373) += snd-soc-avs-max98373.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_NAU8825) += snd-soc-avs-nau8825.o
+obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_PCM3168A) += snd-soc-avs-pcm3168a.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_PROBE) += snd-soc-avs-probe.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT274) += snd-soc-avs-rt274.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_RT286) += snd-soc-avs-rt286.o
diff --git a/sound/soc/intel/avs/boards/pcm3168a.c b/sound/soc/intel/avs/boards/pcm3168a.c
new file mode 100644
index 000000000000..ec6fb736d228
--- /dev/null
+++ b/sound/soc/intel/avs/boards/pcm3168a.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2024-2025 Intel Corporation
+//
+// Author: Cezary Rojewski <cezary.rojewski@intel.com>
+//
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+static const struct snd_soc_dapm_widget card_widgets[] = {
+ SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL),
+ SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL),
+ SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL),
+ SND_SOC_DAPM_LINE("CPB Line Out", NULL),
+ SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL),
+ SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL),
+ SND_SOC_DAPM_LINE("CPB Line In", NULL),
+};
+
+static const struct snd_soc_dapm_route card_routes[] = {
+ { "CPB Stereo HP 1", NULL, "AOUT1L" },
+ { "CPB Stereo HP 1", NULL, "AOUT1R" },
+ { "CPB Stereo HP 2", NULL, "AOUT2L" },
+ { "CPB Stereo HP 2", NULL, "AOUT2R" },
+ { "CPB Stereo HP 3", NULL, "AOUT3L" },
+ { "CPB Stereo HP 3", NULL, "AOUT3R" },
+ { "CPB Line Out", NULL, "AOUT4L" },
+ { "CPB Line Out", NULL, "AOUT4R" },
+
+ { "AIN1L", NULL, "CPB Stereo Mic 1" },
+ { "AIN1R", NULL, "CPB Stereo Mic 1" },
+ { "AIN2L", NULL, "CPB Stereo Mic 2" },
+ { "AIN2R", NULL, "CPB Stereo Mic 2" },
+ { "AIN3L", NULL, "CPB Line In" },
+ { "AIN3R", NULL, "CPB Line In" },
+};
+
+static int avs_pcm3168a_be_fixup(struct snd_soc_pcm_runtime *runtime,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+
+ /* Set SSP to 24 bit. */
+ snd_mask_none(fmt);
+ snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
+
+ return 0;
+}
+
+static int avs_pcm3168a_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, 24576000, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ dev_err(rtd->dev, "Set codec sysclk failed: %d\n", ret);
+
+ return ret;
+}
+
+static const struct snd_soc_ops avs_pcm3168a_ops = {
+ .hw_params = avs_pcm3168a_hw_params,
+};
+
+SND_SOC_DAILINK_DEF(pcm3168a_dac,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-dac")));
+SND_SOC_DAILINK_DEF(pcm3168a_adc,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-adc")));
+SND_SOC_DAILINK_DEF(cpu_ssp0, DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
+SND_SOC_DAILINK_DEF(cpu_ssp2, DAILINK_COMP_ARRAY(COMP_CPU("SSP2 Pin")));
+
+static int avs_create_dai_links(struct device *dev, struct snd_soc_dai_link **links, int *num_links)
+{
+ struct snd_soc_dai_link_component *platform;
+ struct snd_soc_dai_link *dl;
+ const int num_dl = 2;
+
+ dl = devm_kcalloc(dev, num_dl, sizeof(*dl), GFP_KERNEL);
+ platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
+ if (!dl || !platform)
+ return -ENOMEM;
+
+ platform->name = dev_name(dev);
+ dl[0].num_cpus = 1;
+ dl[0].num_codecs = 1;
+ dl[0].platforms = platform;
+ dl[0].num_platforms = 1;
+ dl[0].dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP;
+ dl[0].be_hw_params_fixup = avs_pcm3168a_be_fixup;
+ dl[0].nonatomic = 1;
+ dl[0].no_pcm = 1;
+ memcpy(&dl[1], &dl[0], sizeof(*dl));
+
+ dl[0].name = "SSP0-Codec-dac";
+ dl[0].cpus = cpu_ssp0;
+ dl[0].codecs = pcm3168a_dac;
+ dl[0].playback_only = 1;
+ dl[1].name = "SSP2-Codec-adc";
+ dl[1].cpus = cpu_ssp2;
+ dl[1].codecs = pcm3168a_adc;
+ dl[1].capture_only = 1;
+
+ *links = dl;
+ *num_links = num_dl;
+ return 0;
+}
+
+static int avs_pcm3168a_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct snd_soc_card *card;
+ int ret;
+
+ card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+ if (!card)
+ return -ENOMEM;
+
+ ret = avs_create_dai_links(dev, &card->dai_link, &card->num_links);
+ if (ret)
+ return ret;
+
+ card->name = "avs_pcm3168a";
+ card->dev = dev;
+ card->owner = THIS_MODULE;
+ card->dapm_widgets = card_widgets;
+ card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
+ card->dapm_routes = card_routes;
+ card->num_dapm_routes = ARRAY_SIZE(card_routes);
+ card->fully_routed = true;
+
+ return devm_snd_soc_register_card(dev, card);
+}
+
+static const struct platform_device_id avs_pcm3168a_driver_ids[] = {
+ {
+ .name = "avs_pcm3168a",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(platform, avs_pcm3168a_driver_ids);
+
+static struct platform_driver avs_pcm3168a_driver = {
+ .probe = avs_pcm3168a_probe,
+ .driver = {
+ .name = "avs_pcm3168a",
+ .pm = &snd_soc_pm_ops,
+ },
+ .id_table = avs_pcm3168a_driver_ids,
+};
+
+module_platform_driver(avs_pcm3168a_driver);
+
+MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
+MODULE_LICENSE("GPL");
--
2.25.1