From 241188942603dc73f62cf2553c53cae2235c9957 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Sun, 27 Jul 2014 09:31:47 +0100 Subject: [PATCH 55/57] asoc: add mt7620 support Signed-off-by: John Crispin --- 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 | 466 ++++++++++++++++++++++++++++++++++++++ sound/soc/ralink/mt7620-wm8960.c | 125 ++++++++++ sound/soc/soc-io.c | 10 - 8 files changed, 621 insertions(+), 10 deletions(-) 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 diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c index 405b79c..dfda6e6 100644 --- a/arch/mips/ralink/of.c +++ b/arch/mips/ralink/of.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -26,6 +27,7 @@ #include "common.h" __iomem void *rt_sysc_membase; +EXPORT_SYMBOL(rt_sysc_membase); __iomem void *rt_memc_membase; extern struct boot_param_header __dtb_start; diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig index d62ce48..de91f58 100644 --- a/sound/soc/Kconfig +++ b/sound/soc/Kconfig @@ -47,6 +47,7 @@ source "sound/soc/kirkwood/Kconfig" source "sound/soc/intel/Kconfig" source "sound/soc/mxs/Kconfig" source "sound/soc/pxa/Kconfig" +source "sound/soc/ralink/Kconfig" source "sound/soc/samsung/Kconfig" source "sound/soc/s6000/Kconfig" source "sound/soc/sh/Kconfig" diff --git a/sound/soc/Makefile b/sound/soc/Makefile index 62a1822..1d9398c 100644 --- a/sound/soc/Makefile +++ b/sound/soc/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_SND_SOC) += nuc900/ obj-$(CONFIG_SND_SOC) += omap/ obj-$(CONFIG_SND_SOC) += kirkwood/ obj-$(CONFIG_SND_SOC) += pxa/ +obj-$(CONFIG_SND_SOC) += ralink/ obj-$(CONFIG_SND_SOC) += samsung/ obj-$(CONFIG_SND_SOC) += s6000/ obj-$(CONFIG_SND_SOC) += sh/ diff --git a/sound/soc/ralink/Kconfig b/sound/soc/ralink/Kconfig new file mode 100644 index 0000000..d462622 --- /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. diff --git a/sound/soc/ralink/Makefile b/sound/soc/ralink/Makefile new file mode 100644 index 0000000..3d79980 --- /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 diff --git a/sound/soc/ralink/mt7620-i2s.c b/sound/soc/ralink/mt7620-i2s.c new file mode 100644 index 0000000..846db03 --- /dev/null +++ b/sound/soc/ralink/mt7620-i2s.c @@ -0,0 +1,466 @@ +/* + * Copyright (C) 2010, Lars-Peter Clausen + * + * 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 +#include +#include +#include +#include +#include + +#include + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#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 int mt7620_i2s_suspend(struct snd_soc_dai *dai) +{ + struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai); + uint32_t cfg; + + if (dai->active) { + cfg = mt7620_i2s_read(i2s, I2S_REG_CFG0); + cfg &= ~I2S_REG_CFG0_TX_EN; + mt7620_i2s_write(i2s, I2S_REG_CFG0, cfg); + } + + return 0; +} + +static int mt7620_i2s_resume(struct snd_soc_dai *dai) +{ + struct mt7620_i2s *i2s = snd_soc_dai_get_drvdata(dai); + uint32_t cfg; + + if (dai->active) { + cfg = mt7620_i2s_read(i2s, I2S_REG_CFG0); + cfg |= I2S_REG_CFG0_TX_EN; + mt7620_i2s_write(i2s, I2S_REG_CFG0, cfg); + } + + 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_S8 | \ + SNDRV_PCM_FMTBIT_S16_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, + .suspend = mt7620_i2s_suspend, + .resume = mt7620_i2s_resume, +}; + +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, "); +MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mt7620-i2s"); diff --git a/sound/soc/ralink/mt7620-wm8960.c b/sound/soc/ralink/mt7620-wm8960.c new file mode 100644 index 0000000..c0f6389 --- /dev/null +++ b/sound/soc/ralink/mt7620-wm8960.c @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2009, Lars-Peter Clausen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include + + +static const struct snd_soc_dapm_widget mt7620_wm8960_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", NULL), +}; + +static const struct snd_soc_dapm_route mt7620_wm8960_routes[] = { + {"Speaker", NULL, "HP_L"}, + {"Speaker", NULL, "HP_R"}, +}; + +#define MT7620_DAIFMT (SND_SOC_DAIFMT_I2S | \ + SND_SOC_DAIFMT_NB_NF | \ + SND_SOC_DAIFMT_CBM_CFM) + +static int mt7620_wm8960_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dapm_context *dapm = &codec->dapm; + int ret; + + snd_soc_dapm_enable_pin(dapm, "HP_L"); + snd_soc_dapm_enable_pin(dapm, "HP_R"); + + ret = snd_soc_dai_set_fmt(cpu_dai, MT7620_DAIFMT); + if (ret < 0) { + dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret); + return ret; + } + + return 0; +} + +static struct snd_soc_dai_link mt7620_wm8960_dai = { + .name = "mt7620", + .stream_name = "mt7620", + .init = mt7620_wm8960_codec_init, + .codec_dai_name = "wm8960-hifi", +}; + +static struct snd_soc_card mt7620_wm8960 = { + .name = "mt7620-wm8960", + .owner = THIS_MODULE, + .dai_link = &mt7620_wm8960_dai, + .num_links = 1, + + .dapm_widgets = mt7620_wm8960_widgets, + .num_dapm_widgets = ARRAY_SIZE(mt7620_wm8960_widgets), + .dapm_routes = mt7620_wm8960_routes, + .num_dapm_routes = ARRAY_SIZE(mt7620_wm8960_routes), +}; + +static int mt7620_wm8960_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct snd_soc_card *card = &mt7620_wm8960; + int ret; + + card->dev = &pdev->dev; + + mt7620_wm8960_dai.cpu_of_node = of_parse_phandle(np, "cpu-dai", 0); + mt7620_wm8960_dai.codec_of_node = of_parse_phandle(np, "codec-dai", 0); + mt7620_wm8960_dai.platform_of_node = mt7620_wm8960_dai.cpu_of_node; + + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + } + return ret; +} + +static int mt7620_wm8960_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + return 0; +} + +static const struct of_device_id mt7620_audio_match[] = { + { .compatible = "ralink,wm8960-audio" }, + {}, +}; +MODULE_DEVICE_TABLE(of, mt7620_audio_match); + +static struct platform_driver mt7620_wm8960_driver = { + .driver = { + .name = "wm8960-audio", + .owner = THIS_MODULE, + .of_match_table = mt7620_audio_match, + }, + .probe = mt7620_wm8960_probe, + .remove = mt7620_wm8960_remove, +}; + +module_platform_driver(mt7620_wm8960_driver); + +MODULE_AUTHOR("Lars-Peter Clausen "); +MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:qi-lb60-audio"); diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c index aa886cc..3fdc8c8 100644 --- a/sound/soc/soc-io.c +++ b/sound/soc/soc-io.c @@ -19,7 +19,6 @@ #include -#ifdef CONFIG_REGMAP static int hw_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { @@ -135,12 +134,3 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, return PTR_ERR_OR_ZERO(codec->control_data); } EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io); -#else -int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, - int addr_bits, int data_bits, - enum snd_soc_control_type control) -{ - return -ENOTSUPP; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io); -#endif -- 1.7.10.4