[PATCH 1/2] ASoC: mediatek: Add mt2701-wm8960 machine driver
Ryder Lee
ryder.lee at mediatek.com
Wed Mar 29 01:59:31 PDT 2017
Add wm8960 machine driver and config option for MT2701.
Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
---
sound/soc/mediatek/Kconfig | 10 ++
sound/soc/mediatek/mt2701/Makefile | 1 +
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 16 +++
sound/soc/mediatek/mt2701/mt2701-wm8960.c | 176 +++++++++++++++++++++++++++++
4 files changed, 203 insertions(+)
create mode 100644 sound/soc/mediatek/mt2701/mt2701-wm8960.c
diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index d7013bd..c6f3904 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -22,6 +22,16 @@ config SND_SOC_MT2701_CS42448
Select Y if you have such device.
If unsure select "N".
+config SND_SOC_MT2701_WM8960
+ tristate "ASoc Audio driver for MT2701 with WM8960 codec"
+ depends on SND_SOC_MT2701
+ select SND_SOC_WM8960
+ help
+ This adds ASoC driver for Mediatek MT2701 boards
+ with the WM8960 codecs.
+ Select Y if you have such device.
+ If unsure select "N".
+
config SND_SOC_MT8173
tristate "ASoC support for Mediatek MT8173 chip"
depends on ARCH_MEDIATEK
diff --git a/sound/soc/mediatek/mt2701/Makefile b/sound/soc/mediatek/mt2701/Makefile
index 31c3d04..c91deb6 100644
--- a/sound/soc/mediatek/mt2701/Makefile
+++ b/sound/soc/mediatek/mt2701/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_SND_SOC_MT2701) += snd-soc-mt2701-afe.o
# machine driver
obj-$(CONFIG_SND_SOC_MT2701_CS42448) += mt2701-cs42448.o
+obj-$(CONFIG_SND_SOC_MT2701_WM8960) += mt2701-wm8960.o
diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
index c7fa3e6..bc5d4db 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
@@ -604,6 +604,22 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
static struct snd_soc_dai_driver mt2701_afe_pcm_dais[] = {
/* FE DAIs: memory intefaces to CPU */
{
+ .name = "PCMO0",
+ .id = MT2701_MEMIF_DL1,
+ .suspend = mtk_afe_dai_suspend,
+ .resume = mtk_afe_dai_resume,
+ .playback = {
+ .stream_name = "DL1",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .ops = &mt2701_single_memif_dai_ops,
+ },
+ {
.name = "PCM_multi",
.id = MT2701_MEMIF_DLM,
.suspend = mtk_afe_dai_suspend,
diff --git a/sound/soc/mediatek/mt2701/mt2701-wm8960.c b/sound/soc/mediatek/mt2701/mt2701-wm8960.c
new file mode 100644
index 0000000..a08ce23
--- /dev/null
+++ b/sound/soc/mediatek/mt2701/mt2701-wm8960.c
@@ -0,0 +1,176 @@
+/*
+ * mt2701-wm8960.c -- MT2701 WM8960 ALSA SoC machine driver
+ *
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee at mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <sound/soc.h>
+
+#include "mt2701-afe-common.h"
+
+static const struct snd_soc_dapm_widget mt2701_wm8960_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_MIC("AMIC", NULL),
+};
+
+static const struct snd_kcontrol_new mt2701_wm8960_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("AMIC"),
+};
+
+static int mt2701_wm8960_be_ops_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 *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned int mclk_rate;
+ unsigned int rate = params_rate(params);
+ unsigned int div_mclk_over_bck = rate > 192000 ? 2 : 4;
+ unsigned int div_bck_over_lrck = 64;
+
+ mclk_rate = rate * div_bck_over_lrck * div_mclk_over_bck;
+
+ snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate, SND_SOC_CLOCK_OUT);
+ snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate, SND_SOC_CLOCK_IN);
+
+ return 0;
+}
+
+static struct snd_soc_ops mt2701_wm8960_be_ops = {
+ .hw_params = mt2701_wm8960_be_ops_hw_params
+};
+
+static struct snd_soc_dai_link mt2701_wm8960_dai_links[] = {
+ /* FE */
+ {
+ .name = "wm8960-playback",
+ .stream_name = "wm8960-playback",
+ .cpu_dai_name = "PCMO0",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .trigger = {SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST},
+ .dynamic = 1,
+ .dpcm_playback = 1,
+ },
+ {
+ .name = "wm8960-capture",
+ .stream_name = "wm8960-capture",
+ .cpu_dai_name = "PCM0",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .trigger = {SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST},
+ .dynamic = 1,
+ .dpcm_capture = 1,
+ },
+ /* BE */
+ {
+ .name = "wm8960-codec",
+ .cpu_dai_name = "I2S0",
+ .no_pcm = 1,
+ .codec_dai_name = "wm8960-hifi",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS
+ | SND_SOC_DAIFMT_GATED,
+ .ops = &mt2701_wm8960_be_ops,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ },
+};
+
+static struct snd_soc_card mt2701_wm8960_card = {
+ .name = "mt2701-wm8960",
+ .owner = THIS_MODULE,
+ .dai_link = mt2701_wm8960_dai_links,
+ .num_links = ARRAY_SIZE(mt2701_wm8960_dai_links),
+ .controls = mt2701_wm8960_controls,
+ .num_controls = ARRAY_SIZE(mt2701_wm8960_controls),
+ .dapm_widgets = mt2701_wm8960_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(mt2701_wm8960_widgets),
+};
+
+static int mt2701_wm8960_machine_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &mt2701_wm8960_card;
+ struct device_node *platform_node, *codec_node;
+ int ret, i;
+
+ platform_node = of_parse_phandle(pdev->dev.of_node,
+ "mediatek,platform", 0);
+ if (!platform_node) {
+ dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
+ return -EINVAL;
+ }
+ for (i = 0; i < card->num_links; i++) {
+ if (mt2701_wm8960_dai_links[i].platform_name)
+ continue;
+ mt2701_wm8960_dai_links[i].platform_of_node = platform_node;
+ }
+
+ card->dev = &pdev->dev;
+
+ codec_node = of_parse_phandle(pdev->dev.of_node,
+ "mediatek,audio-codec", 0);
+ if (!codec_node) {
+ dev_err(&pdev->dev,
+ "Property 'audio-codec' missing or invalid\n");
+ return -EINVAL;
+ }
+ for (i = 0; i < card->num_links; i++) {
+ if (mt2701_wm8960_dai_links[i].codec_name)
+ continue;
+ mt2701_wm8960_dai_links[i].codec_of_node = codec_node;
+ }
+
+ ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
+ if (ret) {
+ dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret)
+ dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id mt2701_wm8960_machine_dt_match[] = {
+ {.compatible = "mediatek,mt2701-wm8960-machine",},
+ {}
+};
+#endif
+
+static struct platform_driver mt2701_wm8960_machine = {
+ .driver = {
+ .name = "mt2701-wm8960",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_OF
+ .of_match_table = mt2701_wm8960_machine_dt_match,
+#endif
+ },
+ .probe = mt2701_wm8960_machine_probe,
+};
+
+module_platform_driver(mt2701_wm8960_machine);
+
+/* Module information */
+MODULE_DESCRIPTION("MT2701 WM8960 ALSA SoC machine driver");
+MODULE_AUTHOR("Ryder Lee <ryder.lee at mediatek.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("mt2701 wm8960 soc card");
+
--
1.9.1
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