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ramips: add wm8960 asoc sound driver for mt762x
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LEAN-ESX
parent
0a23772078
commit
65b25ceb18
@ -136,3 +136,18 @@ define KernelPackage/sound-mt7620/description
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endef
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$(eval $(call KernelPackage,sound-mt7620))
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define KernelPackage/sound-mt76x8-wm8960
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TITLE:=MT76x8 WM8960 ALSA SoC Machine Driver
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DEPENDS:=@TARGET_ramips +kmod-sound-mt7620 +kmod-i2c-mt7628 @!TARGET_ramips_rt288x
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KCONFIG:=CONFIG_SND_SOC_MT76X8_WM8960
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FILES:=$(LINUX_DIR)/sound/soc/ralink/snd-soc-mt76x8-wm8960.ko
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AUTOLOAD:=$(call AutoLoad,91,snd-soc-mt76x8-wm8960)
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$(call AddDepends/sound)
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endef
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define KernelPackage/sound-mt76x8-wm8960/description
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ASoC Audio driver for Ralink SoC with WM8960 codec.
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endef
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$(eval $(call KernelPackage,sound-mt76x8-wm8960))
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@ -58,7 +58,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
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obj-$(CONFIG_SND_SOC) += sirf/
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--- /dev/null
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+++ b/sound/soc/ralink/Kconfig
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@@ -0,0 +1,8 @@
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@@ -0,0 +1,15 @@
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+config SND_RALINK_SOC_I2S
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+ depends on RALINK && SND_SOC && !SOC_RT288X
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+ select SND_SOC_GENERIC_DMAENGINE_PCM
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@ -67,15 +67,26 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
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+ help
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+ Say Y if you want to use I2S protocol and I2S codec on Ralink/MediaTek
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+ based boards.
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+
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+config SND_SOC_MT76X8_WM8960
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+ tristate "ASoC Audio driver for Ralink SoC with WM8960 codec"
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+ depends on SND_RALINK_SOC_I2S && I2C
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+ select SND_SOC_WM8960
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+ help
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+ Say Y if you want to use WM8960 codec on Ralink/MediaTek based boards.
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--- /dev/null
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+++ b/sound/soc/ralink/Makefile
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@@ -0,0 +1,6 @@
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@@ -0,0 +1,10 @@
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+#
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+# Ralink/MediaTek Platform Support
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+#
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+snd-soc-ralink-i2s-objs := ralink-i2s.o
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+
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+obj-$(CONFIG_SND_RALINK_SOC_I2S) += snd-soc-ralink-i2s.o
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+
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+snd-soc-mt76x8-wm8960-objs := mt76x8-wm8960.o
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+
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+obj-$(CONFIG_SND_SOC_MT76X8_WM8960) += snd-soc-mt76x8-wm8960.o
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--- /dev/null
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+++ b/sound/soc/ralink/ralink-i2s.c
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@@ -0,0 +1,965 @@
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@ -1044,3 +1055,169 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
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+MODULE_DESCRIPTION("Ralink/MediaTek I2S driver");
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+MODULE_LICENSE("GPL");
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+MODULE_ALIAS("platform:" DRV_NAME);
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--- /dev/null
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+++ b/sound/soc/ralink/mt76x8-wm8960.c
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@@ -0,0 +1,163 @@
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+/*
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+ * mt76x8-wm8960.c -- MT76x8 WM8960 ALSA SoC machine driver
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+ *
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+ * Copyright 2018 Jack Chen <redchenjs@live.com>
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+ *
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+ * Based on mt2701-wm8960.c
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+ * Copyright (c) 2017 MediaTek Inc.
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+ * Author: Ryder Lee <ryder.lee@mediatek.com>
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+ *
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+ * The code contained herein is licensed under the GNU General Public
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+ * License. You may obtain a copy of the GNU General Public License
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+ * Version 2 or later at the following locations:
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+ *
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+ * http://www.opensource.org/licenses/gpl-license.html
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+ * http://www.gnu.org/copyleft/gpl.html
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/of_platform.h>
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+#include <linux/i2c.h>
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+#include <linux/slab.h>
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+#include <sound/soc.h>
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+#include <sound/pcm_params.h>
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+#include <sound/soc-dapm.h>
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+#include <linux/pinctrl/consumer.h>
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+
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+#include "../codecs/wm8960.h"
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+
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+static const struct snd_soc_dapm_widget mt76x8_wm8960_dapm_widgets[] = {
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+ SND_SOC_DAPM_HP("Headphone", NULL),
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+ SND_SOC_DAPM_SPK("Ext Spk", NULL),
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+ SND_SOC_DAPM_LINE("Line In", NULL),
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+ SND_SOC_DAPM_MIC("Mic", NULL),
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+};
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+
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+static int mt76x8_wm8960_ops_hw_params(struct snd_pcm_substream *substream,
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+ struct snd_pcm_hw_params *params)
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+{
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+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
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+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
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+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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+ unsigned int mclk_rate;
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+ unsigned int rate = params_rate(params);
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+ unsigned int div_mclk_over_bck = rate > 192000 ? 2 : 4;
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+ unsigned int div_bck_over_lrck = 64;
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+
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+ mclk_rate = rate * div_bck_over_lrck * div_mclk_over_bck;
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+
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+ snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate, SND_SOC_CLOCK_OUT);
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+ snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate, SND_SOC_CLOCK_IN);
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+
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+ return 0;
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+}
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+
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+static struct snd_soc_ops mt76x8_wm8960_ops = {
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+ .hw_params = mt76x8_wm8960_ops_hw_params,
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+};
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+
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+static struct snd_soc_dai_link mt76x8_wm8960_dai_links[] = {
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+ {
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+ .name = "wm8960-codec",
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+ .stream_name = "wm8960-hifi",
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+ .cpu_dai_name = "ralink-i2s",
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+ .codec_dai_name = "wm8960-hifi",
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+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS,
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+ .ops = &mt76x8_wm8960_ops,
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+ .dpcm_playback = 1,
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+ .dpcm_capture = 1,
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+ },
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+};
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+
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+static struct snd_soc_card mt76x8_wm8960_card = {
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+ .name = "MT76x8 WM8960 ASoC Card",
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+ .owner = THIS_MODULE,
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+ .dai_link = mt76x8_wm8960_dai_links,
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+ .num_links = ARRAY_SIZE(mt76x8_wm8960_dai_links),
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+ .dapm_widgets = mt76x8_wm8960_dapm_widgets,
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+ .num_dapm_widgets = ARRAY_SIZE(mt76x8_wm8960_dapm_widgets),
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+};
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+
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+static int mt76x8_wm8960_machine_probe(struct platform_device *pdev)
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+{
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+ struct snd_soc_card *card = &mt76x8_wm8960_card;
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+ struct device_node *platform_node, *codec_node;
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+ struct platform_device *platform_dev;
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+ struct i2c_client *codec_dev;
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+ int ret, i;
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+
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+ platform_node = of_parse_phandle(pdev->dev.of_node, "mediatek,platform", 0);
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+ if (!platform_node) {
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+ dev_err(&pdev->dev, "property 'platform' missing or invalid\n");
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+ return -EINVAL;
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+ }
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+ platform_dev = of_find_device_by_node(platform_node);
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+ if (!platform_dev) {
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+ dev_err(&pdev->dev, "failed to find platform device\n");
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+ return -EINVAL;
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+ }
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+ for (i=0; i<card->num_links; i++) {
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+ if (mt76x8_wm8960_dai_links[i].platform_name) {
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+ continue;
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+ }
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+ mt76x8_wm8960_dai_links[i].platform_of_node = platform_node;
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+ }
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+
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+ card->dev = &pdev->dev;
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+
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+ codec_node = of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
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+ if (!codec_node) {
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+ dev_err(&pdev->dev, "property 'audio-codec' missing or invalid\n");
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+ return -EINVAL;
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+ }
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+ codec_dev = of_find_i2c_device_by_node(codec_node);
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+ if (!codec_dev || !codec_dev->dev.driver) {
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+ dev_err(&pdev->dev, "failed to find audio codec device\n");
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+ return -EINVAL;
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+ }
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+ for (i=0; i<card->num_links; i++) {
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+ if (mt76x8_wm8960_dai_links[i].codec_name) {
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+ continue;
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+ }
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+ mt76x8_wm8960_dai_links[i].codec_of_node = codec_node;
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+ }
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+
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+ ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
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+ if (ret) {
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+ dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
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+ return ret;
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+ }
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+
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+ ret = devm_snd_soc_register_card(&pdev->dev, card);
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+ if (ret) {
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+ dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", __func__, ret);
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+ }
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+
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+ return ret;
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+}
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+
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+#ifdef CONFIG_OF
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+static const struct of_device_id mt76x8_wm8960_machine_dt_match[] = {
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+ {.compatible = "mediatek,mt76x8-wm8960-machine"},
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+ {}
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+};
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+#endif
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+
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+static struct platform_driver mt76x8_wm8960_machine = {
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+ .driver = {
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+ .name = "mt76x8-wm8960",
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+ .owner = THIS_MODULE,
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+#ifdef CONFIG_OF
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+ .of_match_table = mt76x8_wm8960_machine_dt_match,
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+#endif
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+ },
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+ .probe = mt76x8_wm8960_machine_probe,
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+};
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+
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+module_platform_driver(mt76x8_wm8960_machine);
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+
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+/* Module information */
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+MODULE_DESCRIPTION("MT76x8 WM8960 ALSA SoC machine driver");
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+MODULE_AUTHOR("Jack Chen <redchenjs@live.com>");
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+MODULE_LICENSE("GPL v2");
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+MODULE_ALIAS("MT76x8 WM8960 ASoC driver");
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