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-rw-r--r--target/linux/ramips/patches-4.4/0048-asoc-add-mt7620-support.patch765
1 files changed, 765 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.4/0048-asoc-add-mt7620-support.patch b/target/linux/ramips/patches-4.4/0048-asoc-add-mt7620-support.patch
new file mode 100644
index 0000000..41ef41c
--- /dev/null
+++ b/target/linux/ramips/patches-4.4/0048-asoc-add-mt7620-support.patch
@@ -0,0 +1,765 @@
+From 7f29222b1731e8182ba94a331531dec18865a1e4 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 27 Jul 2014 09:31:47 +0100
+Subject: [PATCH 48/53] asoc: add mt7620 support
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/ralink/of.c | 2 +
+ sound/soc/Kconfig | 1 +
+ sound/soc/Makefile | 1 +
+ sound/soc/ralink/Kconfig | 15 ++
+ sound/soc/ralink/Makefile | 11 +
+ sound/soc/ralink/mt7620-i2s.c | 436 ++++++++++++++++++++++++++++++++++++++
+ sound/soc/ralink/mt7620-wm8960.c | 233 ++++++++++++++++++++
+ 7 files changed, 699 insertions(+)
+ create mode 100644 sound/soc/ralink/Kconfig
+ create mode 100644 sound/soc/ralink/Makefile
+ create mode 100644 sound/soc/ralink/mt7620-i2s.c
+ create mode 100644 sound/soc/ralink/mt7620-wm8960.c
+
+--- a/arch/mips/ralink/of.c
++++ b/arch/mips/ralink/of.c
+@@ -15,6 +15,7 @@
+ #include <linux/of_fdt.h>
+ #include <linux/kernel.h>
+ #include <linux/bootmem.h>
++#include <linux/module.h>
+ #include <linux/of_platform.h>
+ #include <linux/of_address.h>
+
+@@ -26,6 +27,7 @@
+ #include "common.h"
+
+ __iomem void *rt_sysc_membase;
++EXPORT_SYMBOL(rt_sysc_membase);
+ __iomem void *rt_memc_membase;
+
+ __iomem void *plat_of_remap_node(const char *node)
+--- a/sound/soc/Kconfig
++++ b/sound/soc/Kconfig
+@@ -56,6 +56,7 @@ source "sound/soc/mxs/Kconfig"
+ source "sound/soc/pxa/Kconfig"
+ source "sound/soc/qcom/Kconfig"
+ source "sound/soc/rockchip/Kconfig"
++source "sound/soc/ralink/Kconfig"
+ source "sound/soc/samsung/Kconfig"
+ source "sound/soc/sh/Kconfig"
+ source "sound/soc/sirf/Kconfig"
+--- a/sound/soc/Makefile
++++ b/sound/soc/Makefile
+@@ -36,6 +36,7 @@ obj-$(CONFIG_SND_SOC) += kirkwood/
+ obj-$(CONFIG_SND_SOC) += pxa/
+ obj-$(CONFIG_SND_SOC) += qcom/
+ obj-$(CONFIG_SND_SOC) += rockchip/
++obj-$(CONFIG_SND_SOC) += ralink/
+ obj-$(CONFIG_SND_SOC) += samsung/
+ obj-$(CONFIG_SND_SOC) += sh/
+ obj-$(CONFIG_SND_SOC) += sirf/
+--- /dev/null
++++ b/sound/soc/ralink/Kconfig
+@@ -0,0 +1,15 @@
++config SND_MT7620_SOC_I2S
++ depends on SOC_MT7620 && SND_SOC
++ select SND_SOC_GENERIC_DMAENGINE_PCM
++ tristate "SoC Audio (I2S protocol) for Ralink MT7620 SoC"
++ help
++ Say Y if you want to use I2S protocol and I2S codec on Ingenic MT7620
++ based boards.
++
++config SND_MT7620_SOC_WM8960
++ tristate "SoC Audio support for Ralink WM8960"
++ select SND_MT7620_SOC_I2S
++ select SND_SOC_WM8960
++ help
++ Say Y if you want to add support for ASoC audio on the Qi LB60 board
++ a.k.a Qi Ben NanoNote.
+--- /dev/null
++++ b/sound/soc/ralink/Makefile
+@@ -0,0 +1,11 @@
++#
++# Jz4740 Platform Support
++#
++snd-soc-mt7620-i2s-objs := mt7620-i2s.o
++
++obj-$(CONFIG_SND_MT7620_SOC_I2S) += snd-soc-mt7620-i2s.o
++
++# Jz4740 Machine Support
++snd-soc-mt7620-wm8960-objs := mt7620-wm8960.o
++
++obj-$(CONFIG_SND_MT7620_SOC_WM8960) += snd-soc-mt7620-wm8960.o
+--- /dev/null
++++ b/sound/soc/ralink/mt7620-i2s.c
+@@ -0,0 +1,436 @@
++/*
++ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#include <linux/init.h>
++#include <linux/io.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++
++#include <linux/delay.h>
++
++#include <linux/dma-mapping.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/initval.h>
++#include <sound/dmaengine_pcm.h>
++
++#include <ralink_regs.h>
++
++#define I2S_REG_CFG0 0x00
++#define I2S_REG_CFG0_EN BIT(31)
++#define I2S_REG_CFG0_DMA_EN BIT(30)
++#define I2S_REG_CFG0_BYTE_SWAP BIT(28)
++#define I2S_REG_CFG0_TX_EN BIT(24)
++#define I2S_REG_CFG0_RX_EN BIT(20)
++#define I2S_REG_CFG0_SLAVE BIT(16)
++#define I2S_REG_CFG0_RX_THRES 12
++#define I2S_REG_CFG0_TX_THRES 4
++#define I2S_REG_CFG0_DFT_THRES (4 << I2S_REG_CFG0_RX_THRES) | \
++ (4 << I2S_REG_CFG0_TX_THRES)
++
++#define I2S_REG_INT_STATUS 0x04
++#define I2S_REG_INT_EN 0x08
++#define I2S_REG_FF_STATUS 0x0c
++#define I2S_REG_WREG 0x10
++#define I2S_REG_RREG 0x14
++#define I2S_REG_CFG1 0x18
++
++#define I2S_REG_DIVCMP 0x20
++#define I2S_REG_DIVINT 0x24
++#define I2S_REG_CLK_EN BIT(31)
++
++struct mt7620_i2s {
++ struct resource *mem;
++ void __iomem *base;
++ dma_addr_t phys_base;
++
++ struct snd_dmaengine_dai_dma_data playback_dma_data;
++ struct snd_dmaengine_dai_dma_data capture_dma_data;
++};
++
++static inline uint32_t mt7620_i2s_read(const struct mt7620_i2s *i2s,
++ unsigned int reg)
++{
++ return readl(i2s->base + reg);
++}
++
++static inline void mt7620_i2s_write(const struct mt7620_i2s *i2s,
++ unsigned int reg, uint32_t value)
++{
++ //printk("i2s --> %p = 0x%08X\n", i2s->base + reg, value);
++ writel(value, i2s->base + reg);
++}
++
++static int mt7620_i2s_startup(struct snd_pcm_substream *substream,
++ struct snd_soc_dai *dai)
++{
++ struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai);
++ uint32_t cfg;
++
++ if (dai->active)
++ return 0;
++
++ cfg = mt7620_i2s_read(i2s, I2S_REG_CFG0);
++ cfg |= I2S_REG_CFG0_EN;
++ mt7620_i2s_write(i2s, I2S_REG_CFG0, cfg);
++
++ return 0;
++}
++
++static void mt7620_i2s_shutdown(struct snd_pcm_substream *substream,
++ struct snd_soc_dai *dai)
++{
++ struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai);
++ uint32_t cfg;
++
++ if (dai->active)
++ return;
++
++ cfg = mt7620_i2s_read(i2s, I2S_REG_CFG0);
++ cfg &= ~I2S_REG_CFG0_EN;
++ mt7620_i2s_write(i2s, I2S_REG_CFG0, cfg);
++}
++
++static int mt7620_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
++ struct snd_soc_dai *dai)
++{
++ struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai);
++
++ uint32_t cfg;
++ uint32_t mask;
++
++ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
++ mask = I2S_REG_CFG0_TX_EN;
++ else
++ mask = I2S_REG_CFG0_RX_EN;
++
++ cfg = mt7620_i2s_read(i2s, I2S_REG_CFG0);
++
++ switch (cmd) {
++ case SNDRV_PCM_TRIGGER_START:
++ case SNDRV_PCM_TRIGGER_RESUME:
++ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++ cfg |= mask;
++ break;
++ case SNDRV_PCM_TRIGGER_STOP:
++ case SNDRV_PCM_TRIGGER_SUSPEND:
++ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++ cfg &= ~mask;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ if (cfg & (I2S_REG_CFG0_TX_EN | I2S_REG_CFG0_RX_EN))
++ cfg |= I2S_REG_CFG0_DMA_EN;
++ else
++ cfg &= ~I2S_REG_CFG0_DMA_EN;
++
++ mt7620_i2s_write(i2s, I2S_REG_CFG0, cfg);
++
++ return 0;
++}
++
++static int mt7620_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
++{
++ struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai);
++ uint32_t cfg;
++
++ cfg = mt7620_i2s_read(i2s, I2S_REG_CFG0);
++
++ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
++ case SND_SOC_DAIFMT_CBS_CFS:
++ cfg |= I2S_REG_CFG0_SLAVE;
++ break;
++ case SND_SOC_DAIFMT_CBM_CFM:
++ cfg &= ~I2S_REG_CFG0_SLAVE;
++ break;
++ case SND_SOC_DAIFMT_CBM_CFS:
++ default:
++ return -EINVAL;
++ }
++
++ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
++ case SND_SOC_DAIFMT_I2S:
++ case SND_SOC_DAIFMT_MSB:
++ cfg &= ~I2S_REG_CFG0_BYTE_SWAP;
++ break;
++ case SND_SOC_DAIFMT_LSB:
++ cfg |= I2S_REG_CFG0_BYTE_SWAP;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
++ case SND_SOC_DAIFMT_NB_NF:
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ mt7620_i2s_write(i2s, I2S_REG_CFG0, cfg);
++
++ return 0;
++}
++
++static int mt7620_i2s_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
++{
++
++ return 0;
++}
++
++unsigned long i2sMaster_inclk_int[11] = {
++ 78, 56, 52, 39, 28, 26, 19, 14, 13, 9, 6};
++unsigned long i2sMaster_inclk_comp[11] = {
++ 64, 352, 42, 32, 176, 21, 272, 88, 10, 455, 261};
++
++
++static int mt7620_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
++ unsigned int freq, int dir)
++{
++ struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai);
++
++ printk("Internal REFCLK with fractional division\n");
++
++ mt7620_i2s_write(i2s, I2S_REG_DIVINT, i2sMaster_inclk_int[7]);
++ mt7620_i2s_write(i2s, I2S_REG_DIVCMP,
++ i2sMaster_inclk_comp[7] | I2S_REG_CLK_EN);
++
++/* struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai);
++ struct clk *parent;
++ int ret = 0;
++
++ switch (clk_id) {
++ case JZ4740_I2S_CLKSRC_EXT:
++ parent = clk_get(NULL, "ext");
++ clk_set_parent(i2s->clk_i2s, parent);
++ break;
++ case JZ4740_I2S_CLKSRC_PLL:
++ parent = clk_get(NULL, "pll half");
++ clk_set_parent(i2s->clk_i2s, parent);
++ ret = clk_set_rate(i2s->clk_i2s, freq);
++ break;
++ default:
++ return -EINVAL;
++ }
++ clk_put(parent);
++
++ return ret;*/
++ return 0;
++}
++
++static void mt7620_i2c_init_pcm_config(struct mt7620_i2s *i2s)
++{
++ struct snd_dmaengine_dai_dma_data *dma_data;
++
++ /* Playback */
++ dma_data = &i2s->playback_dma_data;
++ dma_data->maxburst = 16;
++ dma_data->slave_id = 2; //JZ4740_DMA_TYPE_AIC_TRANSMIT;
++ dma_data->addr = i2s->phys_base + I2S_REG_WREG;
++
++ /* Capture */
++ dma_data = &i2s->capture_dma_data;
++ dma_data->maxburst = 16;
++ dma_data->slave_id = 3; //JZ4740_DMA_TYPE_AIC_RECEIVE;
++ dma_data->addr = i2s->phys_base + I2S_REG_RREG;
++}
++
++static int mt7620_i2s_dai_probe(struct snd_soc_dai *dai)
++{
++ struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai);
++ uint32_t data;
++
++ mt7620_i2c_init_pcm_config(i2s);
++ dai->playback_dma_data = &i2s->playback_dma_data;
++ dai->capture_dma_data = &i2s->capture_dma_data;
++
++ /* set share pins to i2s/gpio mode and i2c mode */
++ data = rt_sysc_r32(0x60);
++ data &= 0xFFFFFFE2;
++ data |= 0x00000018;
++ rt_sysc_w32(data, 0x60);
++
++ printk("Internal REFCLK with fractional division\n");
++
++ mt7620_i2s_write(i2s, I2S_REG_CFG0, I2S_REG_CFG0_DFT_THRES);
++ mt7620_i2s_write(i2s, I2S_REG_CFG1, 0);
++ mt7620_i2s_write(i2s, I2S_REG_INT_EN, 0);
++
++ mt7620_i2s_write(i2s, I2S_REG_DIVINT, i2sMaster_inclk_int[7]);
++ mt7620_i2s_write(i2s, I2S_REG_DIVCMP,
++ i2sMaster_inclk_comp[7] | I2S_REG_CLK_EN);
++
++ return 0;
++}
++
++static int mt7620_i2s_dai_remove(struct snd_soc_dai *dai)
++{
++ return 0;
++}
++
++static const struct snd_soc_dai_ops mt7620_i2s_dai_ops = {
++ .startup = mt7620_i2s_startup,
++ .shutdown = mt7620_i2s_shutdown,
++ .trigger = mt7620_i2s_trigger,
++ .hw_params = mt7620_i2s_hw_params,
++ .set_fmt = mt7620_i2s_set_fmt,
++ .set_sysclk = mt7620_i2s_set_sysclk,
++};
++
++#define JZ4740_I2S_FMTS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
++ SNDRV_PCM_FMTBIT_S24_LE)
++
++static struct snd_soc_dai_driver mt7620_i2s_dai = {
++ .probe = mt7620_i2s_dai_probe,
++ .remove = mt7620_i2s_dai_remove,
++ .playback = {
++ .channels_min = 1,
++ .channels_max = 2,
++ .rates = SNDRV_PCM_RATE_8000_48000,
++ .formats = JZ4740_I2S_FMTS,
++ },
++ .capture = {
++ .channels_min = 2,
++ .channels_max = 2,
++ .rates = SNDRV_PCM_RATE_8000_48000,
++ .formats = JZ4740_I2S_FMTS,
++ },
++ .symmetric_rates = 1,
++ .ops = &mt7620_i2s_dai_ops,
++};
++
++static const struct snd_pcm_hardware mt7620_pcm_hardware = {
++ .info = SNDRV_PCM_INFO_MMAP |
++ SNDRV_PCM_INFO_MMAP_VALID |
++ SNDRV_PCM_INFO_INTERLEAVED |
++ SNDRV_PCM_INFO_BLOCK_TRANSFER,
++ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
++ .period_bytes_min = PAGE_SIZE,
++ .period_bytes_max = 64 * 1024,
++ .periods_min = 2,
++ .periods_max = 128,
++ .buffer_bytes_max = 128 * 1024,
++ .fifo_size = 32,
++};
++
++static const struct snd_dmaengine_pcm_config mt7620_dmaengine_pcm_config = {
++ .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
++ .pcm_hardware = &mt7620_pcm_hardware,
++ .prealloc_buffer_size = 256 * PAGE_SIZE,
++};
++
++static const struct snd_soc_component_driver mt7620_i2s_component = {
++ .name = "mt7620-i2s",
++};
++
++static int mt7620_i2s_dev_probe(struct platform_device *pdev)
++{
++ struct mt7620_i2s *i2s;
++ int ret;
++
++ snd_dmaengine_pcm_register(&pdev->dev,
++ &mt7620_dmaengine_pcm_config,
++ SND_DMAENGINE_PCM_FLAG_COMPAT);
++
++ i2s = kzalloc(sizeof(*i2s), GFP_KERNEL);
++ if (!i2s)
++ return -ENOMEM;
++
++ i2s->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ if (!i2s->mem) {
++ ret = -ENOENT;
++ goto err_free;
++ }
++
++ i2s->mem = request_mem_region(i2s->mem->start, resource_size(i2s->mem),
++ pdev->name);
++ if (!i2s->mem) {
++ ret = -EBUSY;
++ goto err_free;
++ }
++
++ i2s->base = ioremap_nocache(i2s->mem->start, resource_size(i2s->mem));
++ if (!i2s->base) {
++ ret = -EBUSY;
++ goto err_release_mem_region;
++ }
++
++ i2s->phys_base = i2s->mem->start;
++
++ platform_set_drvdata(pdev, i2s);
++ ret = snd_soc_register_component(&pdev->dev, &mt7620_i2s_component,
++ &mt7620_i2s_dai, 1);
++
++ if (!ret) {
++ dev_err(&pdev->dev, "loaded\n");
++ return ret;
++ }
++
++ dev_err(&pdev->dev, "Failed to register DAI\n");
++ iounmap(i2s->base);
++
++err_release_mem_region:
++ release_mem_region(i2s->mem->start, resource_size(i2s->mem));
++err_free:
++ kfree(i2s);
++
++ return ret;
++}
++
++static int mt7620_i2s_dev_remove(struct platform_device *pdev)
++{
++ struct mt7620_i2s *i2s = platform_get_drvdata(pdev);
++
++ snd_soc_unregister_component(&pdev->dev);
++
++ iounmap(i2s->base);
++ release_mem_region(i2s->mem->start, resource_size(i2s->mem));
++
++ kfree(i2s);
++
++ snd_dmaengine_pcm_unregister(&pdev->dev);
++
++ return 0;
++}
++
++static const struct of_device_id mt7620_i2s_match[] = {
++ { .compatible = "ralink,mt7620a-i2s" },
++ {},
++};
++MODULE_DEVICE_TABLE(of, mt7620_i2s_match);
++
++static struct platform_driver mt7620_i2s_driver = {
++ .probe = mt7620_i2s_dev_probe,
++ .remove = mt7620_i2s_dev_remove,
++ .driver = {
++ .name = "mt7620-i2s",
++ .owner = THIS_MODULE,
++ .of_match_table = mt7620_i2s_match,
++ },
++};
++
++module_platform_driver(mt7620_i2s_driver);
++
++MODULE_AUTHOR("Lars-Peter Clausen, <lars@metafoo.de>");
++MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:mt7620-i2s");
+--- /dev/null
++++ b/sound/soc/ralink/mt7620-wm8960.c
+@@ -0,0 +1,233 @@
++/*
++ * Copyright 2013 Freescale Semiconductor, Inc.
++ *
++ * Based on mt7620-sgtl5000.c
++ * Copyright 2012 Freescale Semiconductor, Inc.
++ * Copyright 2012 Linaro Ltd.
++ *
++ * 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 <linux/module.h>
++#include <linux/of_platform.h>
++#include <linux/i2c.h>
++#include <linux/slab.h>
++#include <sound/soc.h>
++#include <sound/pcm_params.h>
++#include <sound/soc-dapm.h>
++#include <linux/pinctrl/consumer.h>
++
++#include "../codecs/wm8960.h"
++
++#define DAI_NAME_SIZE 32
++
++struct mt7620_wm8960_data {
++ struct snd_soc_dai_link dai;
++ struct snd_soc_card card;
++ char codec_dai_name[DAI_NAME_SIZE];
++ char platform_name[DAI_NAME_SIZE];
++ unsigned int clk_frequency;
++};
++
++struct mt7620_priv {
++ struct platform_device *pdev;
++};
++static struct mt7620_priv card_priv;
++
++static const struct snd_soc_dapm_widget mt7620_wm8960_dapm_widgets[] = {
++ SND_SOC_DAPM_HP("Headphone Jack", NULL),
++ SND_SOC_DAPM_SPK("Ext Spk", NULL),
++ SND_SOC_DAPM_MIC("AMIC", NULL),
++ SND_SOC_DAPM_MIC("DMIC", NULL),
++};
++
++static int sample_rate = 44100;
++static snd_pcm_format_t sample_format = SNDRV_PCM_FORMAT_S16_LE;
++
++static int mt7620_hifi_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *params)
++{
++ sample_rate = params_rate(params);
++ sample_format = params_format(params);
++
++ return 0;
++}
++
++static struct snd_soc_ops mt7620_hifi_ops = {
++ .hw_params = mt7620_hifi_hw_params,
++};
++
++static int mt7620_wm8960_set_bias_level(struct snd_soc_card *card,
++ struct snd_soc_dapm_context *dapm,
++ enum snd_soc_bias_level level)
++{
++ struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
++ struct mt7620_priv *priv = &card_priv;
++ struct mt7620_wm8960_data *data = snd_soc_card_get_drvdata(card);
++ struct device *dev = &priv->pdev->dev;
++ int ret;
++
++ if (dapm->dev != codec_dai->dev)
++ return 0;
++
++ switch (level) {
++ case SND_SOC_BIAS_PREPARE:
++ if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
++ }
++ break;
++
++ case SND_SOC_BIAS_STANDBY:
++ if (dapm->bias_level == SND_SOC_BIAS_PREPARE) {
++ ret = snd_soc_dai_set_sysclk(codec_dai,
++ WM8960_SYSCLK_MCLK, data->clk_frequency,
++ SND_SOC_CLOCK_IN);
++ if (ret < 0) {
++ dev_err(dev,
++ "failed to switch away from FLL: %d\n",
++ ret);
++ return ret;
++ }
++ }
++ break;
++
++ default:
++ break;
++ }
++
++ return 0;
++}
++
++static int mt7620_wm8960_late_probe(struct snd_soc_card *card)
++{
++ struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
++ struct mt7620_priv *priv = &card_priv;
++ struct mt7620_wm8960_data *data = snd_soc_card_get_drvdata(card);
++ struct device *dev = &priv->pdev->dev;
++ int ret;
++
++ ret = snd_soc_dai_set_sysclk(codec_dai, WM8960_SYSCLK_MCLK,
++ data->clk_frequency, SND_SOC_CLOCK_IN);
++ if (ret < 0)
++ dev_err(dev, "failed to set sysclk in %s\n", __func__);
++
++ return ret;
++}
++
++static int mt7620_wm8960_probe(struct platform_device *pdev)
++{
++ struct device_node *i2s_np, *codec_np;
++ struct platform_device *i2s_pdev;
++ struct mt7620_priv *priv = &card_priv;
++ struct i2c_client *codec_dev;
++ struct mt7620_wm8960_data *data;
++ int ret;
++
++ priv->pdev = pdev;
++
++ i2s_np = of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0);
++ codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
++ if (!i2s_np || !codec_np) {
++ dev_err(&pdev->dev, "phandle missing or invalid\n");
++ ret = -EINVAL;
++ goto fail;
++ }
++
++ i2s_pdev = of_find_device_by_node(i2s_np);
++ if (!i2s_pdev) {
++ dev_err(&pdev->dev, "failed to find SSI platform device\n");
++ ret = -EINVAL;
++ goto fail;
++ }
++ codec_dev = of_find_i2c_device_by_node(codec_np);
++ if (!codec_dev || !codec_dev->dev.driver) {
++ dev_err(&pdev->dev, "failed to find codec platform device\n");
++ ret = -EINVAL;
++ goto fail;
++ }
++
++ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
++ if (!data) {
++ ret = -ENOMEM;
++ goto fail;
++ }
++
++ data->clk_frequency = 12000000;
++ data->dai.name = "HiFi";
++ data->dai.stream_name = "HiFi";
++ data->dai.codec_dai_name = "wm8960-hifi";
++ data->dai.codec_of_node = codec_np;
++ data->dai.cpu_dai_name = dev_name(&i2s_pdev->dev);
++ data->dai.platform_of_node = i2s_np;
++ data->dai.ops = &mt7620_hifi_ops;
++ data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBM_CFM;
++
++ data->card.dev = &pdev->dev;
++ ret = snd_soc_of_parse_card_name(&data->card, "model");
++ if (ret)
++ goto fail;
++ ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
++ if (ret)
++ goto fail;
++ data->card.num_links = 1;
++ data->card.dai_link = &data->dai;
++ data->card.dapm_widgets = mt7620_wm8960_dapm_widgets;
++ data->card.num_dapm_widgets = ARRAY_SIZE(mt7620_wm8960_dapm_widgets);
++
++ data->card.late_probe = mt7620_wm8960_late_probe;
++ data->card.set_bias_level = mt7620_wm8960_set_bias_level;
++
++ 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;
++ }
++
++ of_node_put(i2s_np);
++ of_node_put(codec_np);
++
++ return 0;
++fail:
++ if (i2s_np)
++ of_node_put(i2s_np);
++ if (codec_np)
++ of_node_put(codec_np);
++
++ return ret;
++}
++
++static int mt7620_wm8960_remove(struct platform_device *pdev)
++{
++ return 0;
++}
++
++static const struct of_device_id mt7620_wm8960_dt_ids[] = {
++ { .compatible = "mediatek,mt7620-audio-wm8960", },
++ { /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, mt7620_wm8960_dt_ids);
++
++static struct platform_driver mt7620_wm8960_driver = {
++ .driver = {
++ .name = "mt7620-wm8960",
++ .owner = THIS_MODULE,
++ .pm = &snd_soc_pm_ops,
++ .of_match_table = mt7620_wm8960_dt_ids,
++ },
++ .probe = mt7620_wm8960_probe,
++ .remove = mt7620_wm8960_remove,
++};
++module_platform_driver(mt7620_wm8960_driver);
++
++MODULE_AUTHOR("Freescale Semiconductor, Inc.");
++MODULE_DESCRIPTION("Freescale i.MX WM8962 ASoC machine driver");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:mt7620-wm8962");
generated by cgit v1.1 at 2024-12-28 16:16:02 +0000