diff options
Diffstat (limited to 'sound/soc/mediatek/mtk-afe-pcm.c')
| -rw-r--r-- | sound/soc/mediatek/mtk-afe-pcm.c | 1335 |
1 files changed, 0 insertions, 1335 deletions
diff --git a/sound/soc/mediatek/mtk-afe-pcm.c b/sound/soc/mediatek/mtk-afe-pcm.c deleted file mode 100644 index 2b5df2ef5..000000000 --- a/sound/soc/mediatek/mtk-afe-pcm.c +++ /dev/null @@ -1,1335 +0,0 @@ -/* - * Mediatek ALSA SoC AFE platform driver - * - * Copyright (c) 2015 MediaTek Inc. - * Author: Koro Chen <koro.chen@mediatek.com> - * Sascha Hauer <s.hauer@pengutronix.de> - * Hidalgo Huang <hidalgo.huang@mediatek.com> - * Ir Lian <ir.lian@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/delay.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/dma-mapping.h> -#include <linux/pm_runtime.h> -#include <sound/soc.h> -#include "mtk-afe-common.h" - -/***************************************************************************** - * R E G I S T E R D E F I N I T I O N - *****************************************************************************/ -#define AUDIO_TOP_CON0 0x0000 -#define AUDIO_TOP_CON1 0x0004 -#define AFE_DAC_CON0 0x0010 -#define AFE_DAC_CON1 0x0014 -#define AFE_I2S_CON1 0x0034 -#define AFE_I2S_CON2 0x0038 -#define AFE_CONN_24BIT 0x006c -#define AFE_MEMIF_MSB 0x00cc - -#define AFE_CONN1 0x0024 -#define AFE_CONN2 0x0028 -#define AFE_CONN3 0x002c -#define AFE_CONN7 0x0460 -#define AFE_CONN8 0x0464 -#define AFE_HDMI_CONN0 0x0390 - -/* Memory interface */ -#define AFE_DL1_BASE 0x0040 -#define AFE_DL1_CUR 0x0044 -#define AFE_DL1_END 0x0048 -#define AFE_DL2_BASE 0x0050 -#define AFE_DL2_CUR 0x0054 -#define AFE_AWB_BASE 0x0070 -#define AFE_AWB_CUR 0x007c -#define AFE_VUL_BASE 0x0080 -#define AFE_VUL_CUR 0x008c -#define AFE_VUL_END 0x0088 -#define AFE_DAI_BASE 0x0090 -#define AFE_DAI_CUR 0x009c -#define AFE_MOD_PCM_BASE 0x0330 -#define AFE_MOD_PCM_CUR 0x033c -#define AFE_HDMI_OUT_BASE 0x0374 -#define AFE_HDMI_OUT_CUR 0x0378 -#define AFE_HDMI_OUT_END 0x037c - -#define AFE_ADDA_TOP_CON0 0x0120 -#define AFE_ADDA2_TOP_CON0 0x0600 - -#define AFE_HDMI_OUT_CON0 0x0370 - -#define AFE_IRQ_MCU_CON 0x03a0 -#define AFE_IRQ_STATUS 0x03a4 -#define AFE_IRQ_CLR 0x03a8 -#define AFE_IRQ_CNT1 0x03ac -#define AFE_IRQ_CNT2 0x03b0 -#define AFE_IRQ_MCU_EN 0x03b4 -#define AFE_IRQ_CNT5 0x03bc -#define AFE_IRQ_CNT7 0x03dc - -#define AFE_TDM_CON1 0x0548 -#define AFE_TDM_CON2 0x054c - -#define AFE_BASE_END_OFFSET 8 -#define AFE_IRQ_STATUS_BITS 0xff - -/* AUDIO_TOP_CON0 (0x0000) */ -#define AUD_TCON0_PDN_SPDF (0x1 << 21) -#define AUD_TCON0_PDN_HDMI (0x1 << 20) -#define AUD_TCON0_PDN_24M (0x1 << 9) -#define AUD_TCON0_PDN_22M (0x1 << 8) -#define AUD_TCON0_PDN_AFE (0x1 << 2) - -/* AFE_I2S_CON1 (0x0034) */ -#define AFE_I2S_CON1_LOW_JITTER_CLK (0x1 << 12) -#define AFE_I2S_CON1_RATE(x) (((x) & 0xf) << 8) -#define AFE_I2S_CON1_FORMAT_I2S (0x1 << 3) -#define AFE_I2S_CON1_EN (0x1 << 0) - -/* AFE_I2S_CON2 (0x0038) */ -#define AFE_I2S_CON2_LOW_JITTER_CLK (0x1 << 12) -#define AFE_I2S_CON2_RATE(x) (((x) & 0xf) << 8) -#define AFE_I2S_CON2_FORMAT_I2S (0x1 << 3) -#define AFE_I2S_CON2_EN (0x1 << 0) - -/* AFE_CONN_24BIT (0x006c) */ -#define AFE_CONN_24BIT_O04 (0x1 << 4) -#define AFE_CONN_24BIT_O03 (0x1 << 3) - -/* AFE_HDMI_CONN0 (0x0390) */ -#define AFE_HDMI_CONN0_O37_I37 (0x7 << 21) -#define AFE_HDMI_CONN0_O36_I36 (0x6 << 18) -#define AFE_HDMI_CONN0_O35_I33 (0x3 << 15) -#define AFE_HDMI_CONN0_O34_I32 (0x2 << 12) -#define AFE_HDMI_CONN0_O33_I35 (0x5 << 9) -#define AFE_HDMI_CONN0_O32_I34 (0x4 << 6) -#define AFE_HDMI_CONN0_O31_I31 (0x1 << 3) -#define AFE_HDMI_CONN0_O30_I30 (0x0 << 0) - -/* AFE_TDM_CON1 (0x0548) */ -#define AFE_TDM_CON1_LRCK_WIDTH(x) (((x) - 1) << 24) -#define AFE_TDM_CON1_32_BCK_CYCLES (0x2 << 12) -#define AFE_TDM_CON1_WLEN_32BIT (0x2 << 8) -#define AFE_TDM_CON1_MSB_ALIGNED (0x1 << 4) -#define AFE_TDM_CON1_1_BCK_DELAY (0x1 << 3) -#define AFE_TDM_CON1_LRCK_INV (0x1 << 2) -#define AFE_TDM_CON1_BCK_INV (0x1 << 1) -#define AFE_TDM_CON1_EN (0x1 << 0) - -enum afe_tdm_ch_start { - AFE_TDM_CH_START_O30_O31 = 0, - AFE_TDM_CH_START_O32_O33, - AFE_TDM_CH_START_O34_O35, - AFE_TDM_CH_START_O36_O37, - AFE_TDM_CH_ZERO, -}; - -static const unsigned int mtk_afe_backup_list[] = { - AUDIO_TOP_CON0, - AFE_CONN1, - AFE_CONN2, - AFE_CONN7, - AFE_CONN8, - AFE_DAC_CON1, - AFE_DL1_BASE, - AFE_DL1_END, - AFE_VUL_BASE, - AFE_VUL_END, - AFE_HDMI_OUT_BASE, - AFE_HDMI_OUT_END, - AFE_HDMI_CONN0, - AFE_DAC_CON0, -}; - -struct mtk_afe { - /* address for ioremap audio hardware register */ - void __iomem *base_addr; - struct device *dev; - struct regmap *regmap; - struct mtk_afe_memif memif[MTK_AFE_MEMIF_NUM]; - struct clk *clocks[MTK_CLK_NUM]; - unsigned int backup_regs[ARRAY_SIZE(mtk_afe_backup_list)]; - bool suspended; -}; - -static const struct snd_pcm_hardware mtk_afe_hardware = { - .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP_VALID), - .buffer_bytes_max = 256 * 1024, - .period_bytes_min = 512, - .period_bytes_max = 128 * 1024, - .periods_min = 2, - .periods_max = 256, - .fifo_size = 0, -}; - -static snd_pcm_uframes_t mtk_afe_pcm_pointer - (struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - struct mtk_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; - unsigned int hw_ptr; - int ret; - - ret = regmap_read(afe->regmap, memif->data->reg_ofs_cur, &hw_ptr); - if (ret || hw_ptr == 0) { - dev_err(afe->dev, "%s hw_ptr err\n", __func__); - hw_ptr = memif->phys_buf_addr; - } - - return bytes_to_frames(substream->runtime, - hw_ptr - memif->phys_buf_addr); -} - -static const struct snd_pcm_ops mtk_afe_pcm_ops = { - .ioctl = snd_pcm_lib_ioctl, - .pointer = mtk_afe_pcm_pointer, -}; - -static int mtk_afe_pcm_new(struct snd_soc_pcm_runtime *rtd) -{ - size_t size; - struct snd_card *card = rtd->card->snd_card; - struct snd_pcm *pcm = rtd->pcm; - - size = mtk_afe_hardware.buffer_bytes_max; - - return snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - card->dev, size, size); -} - -static void mtk_afe_pcm_free(struct snd_pcm *pcm) -{ - snd_pcm_lib_preallocate_free_for_all(pcm); -} - -static const struct snd_soc_platform_driver mtk_afe_pcm_platform = { - .ops = &mtk_afe_pcm_ops, - .pcm_new = mtk_afe_pcm_new, - .pcm_free = mtk_afe_pcm_free, -}; - -struct mtk_afe_rate { - unsigned int rate; - unsigned int regvalue; -}; - -static const struct mtk_afe_rate mtk_afe_i2s_rates[] = { - { .rate = 8000, .regvalue = 0 }, - { .rate = 11025, .regvalue = 1 }, - { .rate = 12000, .regvalue = 2 }, - { .rate = 16000, .regvalue = 4 }, - { .rate = 22050, .regvalue = 5 }, - { .rate = 24000, .regvalue = 6 }, - { .rate = 32000, .regvalue = 8 }, - { .rate = 44100, .regvalue = 9 }, - { .rate = 48000, .regvalue = 10 }, - { .rate = 88000, .regvalue = 11 }, - { .rate = 96000, .regvalue = 12 }, - { .rate = 174000, .regvalue = 13 }, - { .rate = 192000, .regvalue = 14 }, -}; - -static int mtk_afe_i2s_fs(unsigned int sample_rate) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(mtk_afe_i2s_rates); i++) - if (mtk_afe_i2s_rates[i].rate == sample_rate) - return mtk_afe_i2s_rates[i].regvalue; - - return -EINVAL; -} - -static int mtk_afe_set_i2s(struct mtk_afe *afe, unsigned int rate) -{ - unsigned int val; - int fs = mtk_afe_i2s_fs(rate); - - if (fs < 0) - return -EINVAL; - - /* from external ADC */ - regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x1); - regmap_update_bits(afe->regmap, AFE_ADDA2_TOP_CON0, 0x1, 0x1); - - /* set input */ - val = AFE_I2S_CON2_LOW_JITTER_CLK | - AFE_I2S_CON2_RATE(fs) | - AFE_I2S_CON2_FORMAT_I2S; - - regmap_update_bits(afe->regmap, AFE_I2S_CON2, ~AFE_I2S_CON2_EN, val); - - /* set output */ - val = AFE_I2S_CON1_LOW_JITTER_CLK | - AFE_I2S_CON1_RATE(fs) | - AFE_I2S_CON1_FORMAT_I2S; - - regmap_update_bits(afe->regmap, AFE_I2S_CON1, ~AFE_I2S_CON1_EN, val); - return 0; -} - -static void mtk_afe_set_i2s_enable(struct mtk_afe *afe, bool enable) -{ - unsigned int val; - - regmap_read(afe->regmap, AFE_I2S_CON2, &val); - if (!!(val & AFE_I2S_CON2_EN) == enable) - return; - - /* input */ - regmap_update_bits(afe->regmap, AFE_I2S_CON2, 0x1, enable); - - /* output */ - regmap_update_bits(afe->regmap, AFE_I2S_CON1, 0x1, enable); -} - -static int mtk_afe_dais_enable_clks(struct mtk_afe *afe, - struct clk *m_ck, struct clk *b_ck) -{ - int ret; - - if (m_ck) { - ret = clk_prepare_enable(m_ck); - if (ret) { - dev_err(afe->dev, "Failed to enable m_ck\n"); - return ret; - } - } - - if (b_ck) { - ret = clk_prepare_enable(b_ck); - if (ret) { - dev_err(afe->dev, "Failed to enable b_ck\n"); - return ret; - } - } - return 0; -} - -static int mtk_afe_dais_set_clks(struct mtk_afe *afe, - struct clk *m_ck, unsigned int mck_rate, - struct clk *b_ck, unsigned int bck_rate) -{ - int ret; - - if (m_ck) { - ret = clk_set_rate(m_ck, mck_rate); - if (ret) { - dev_err(afe->dev, "Failed to set m_ck rate\n"); - return ret; - } - } - - if (b_ck) { - ret = clk_set_rate(b_ck, bck_rate); - if (ret) { - dev_err(afe->dev, "Failed to set b_ck rate\n"); - return ret; - } - } - return 0; -} - -static void mtk_afe_dais_disable_clks(struct mtk_afe *afe, - struct clk *m_ck, struct clk *b_ck) -{ - if (m_ck) - clk_disable_unprepare(m_ck); - if (b_ck) - clk_disable_unprepare(b_ck); -} - -static int mtk_afe_i2s_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - - if (dai->active) - return 0; - - mtk_afe_dais_enable_clks(afe, afe->clocks[MTK_CLK_I2S1_M], NULL); - mtk_afe_dais_enable_clks(afe, afe->clocks[MTK_CLK_I2S2_M], NULL); - regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, - AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M, 0); - return 0; -} - -static void mtk_afe_i2s_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - - if (dai->active) - return; - - mtk_afe_set_i2s_enable(afe, false); - regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, - AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M, - AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M); - mtk_afe_dais_disable_clks(afe, afe->clocks[MTK_CLK_I2S1_M], NULL); - mtk_afe_dais_disable_clks(afe, afe->clocks[MTK_CLK_I2S2_M], NULL); -} - -static int mtk_afe_i2s_prepare(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_pcm_runtime * const runtime = substream->runtime; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - int ret; - - mtk_afe_dais_set_clks(afe, - afe->clocks[MTK_CLK_I2S1_M], runtime->rate * 256, - NULL, 0); - mtk_afe_dais_set_clks(afe, - afe->clocks[MTK_CLK_I2S2_M], runtime->rate * 256, - NULL, 0); - /* config I2S */ - ret = mtk_afe_set_i2s(afe, substream->runtime->rate); - if (ret) - return ret; - - mtk_afe_set_i2s_enable(afe, true); - - return 0; -} - -static int mtk_afe_hdmi_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - - if (dai->active) - return 0; - - mtk_afe_dais_enable_clks(afe, afe->clocks[MTK_CLK_I2S3_M], - afe->clocks[MTK_CLK_I2S3_B]); - return 0; -} - -static void mtk_afe_hdmi_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - - if (dai->active) - return; - - mtk_afe_dais_disable_clks(afe, afe->clocks[MTK_CLK_I2S3_M], - afe->clocks[MTK_CLK_I2S3_B]); -} - -static int mtk_afe_hdmi_prepare(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_pcm_runtime * const runtime = substream->runtime; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - unsigned int val; - - mtk_afe_dais_set_clks(afe, - afe->clocks[MTK_CLK_I2S3_M], runtime->rate * 128, - afe->clocks[MTK_CLK_I2S3_B], - runtime->rate * runtime->channels * 32); - - val = AFE_TDM_CON1_BCK_INV | - AFE_TDM_CON1_LRCK_INV | - AFE_TDM_CON1_1_BCK_DELAY | - AFE_TDM_CON1_MSB_ALIGNED | /* I2S mode */ - AFE_TDM_CON1_WLEN_32BIT | - AFE_TDM_CON1_32_BCK_CYCLES | - AFE_TDM_CON1_LRCK_WIDTH(32); - regmap_update_bits(afe->regmap, AFE_TDM_CON1, ~AFE_TDM_CON1_EN, val); - - /* set tdm2 config */ - switch (runtime->channels) { - case 1: - case 2: - val = AFE_TDM_CH_START_O30_O31; - val |= (AFE_TDM_CH_ZERO << 4); - val |= (AFE_TDM_CH_ZERO << 8); - val |= (AFE_TDM_CH_ZERO << 12); - break; - case 3: - case 4: - val = AFE_TDM_CH_START_O30_O31; - val |= (AFE_TDM_CH_START_O32_O33 << 4); - val |= (AFE_TDM_CH_ZERO << 8); - val |= (AFE_TDM_CH_ZERO << 12); - break; - case 5: - case 6: - val = AFE_TDM_CH_START_O30_O31; - val |= (AFE_TDM_CH_START_O32_O33 << 4); - val |= (AFE_TDM_CH_START_O34_O35 << 8); - val |= (AFE_TDM_CH_ZERO << 12); - break; - case 7: - case 8: - val = AFE_TDM_CH_START_O30_O31; - val |= (AFE_TDM_CH_START_O32_O33 << 4); - val |= (AFE_TDM_CH_START_O34_O35 << 8); - val |= (AFE_TDM_CH_START_O36_O37 << 12); - break; - default: - val = 0; - } - regmap_update_bits(afe->regmap, AFE_TDM_CON2, 0x0000ffff, val); - - regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, - 0x000000f0, runtime->channels << 4); - return 0; -} - -static int mtk_afe_hdmi_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - - dev_info(afe->dev, "%s cmd=%d %s\n", __func__, cmd, dai->name); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, - AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF, 0); - - /* set connections: O30~O37: L/R/LS/RS/C/LFE/CH7/CH8 */ - regmap_write(afe->regmap, AFE_HDMI_CONN0, - AFE_HDMI_CONN0_O30_I30 | AFE_HDMI_CONN0_O31_I31 | - AFE_HDMI_CONN0_O32_I34 | AFE_HDMI_CONN0_O33_I35 | - AFE_HDMI_CONN0_O34_I32 | AFE_HDMI_CONN0_O35_I33 | - AFE_HDMI_CONN0_O36_I36 | AFE_HDMI_CONN0_O37_I37); - - /* enable Out control */ - regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 0x1, 0x1); - - /* enable tdm */ - regmap_update_bits(afe->regmap, AFE_TDM_CON1, 0x1, 0x1); - - return 0; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - /* disable tdm */ - regmap_update_bits(afe->regmap, AFE_TDM_CON1, 0x1, 0); - - /* disable Out control */ - regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 0x1, 0); - - regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, - AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF, - AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF); - - return 0; - default: - return -EINVAL; - } -} - -static int mtk_afe_dais_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - struct snd_pcm_runtime *runtime = substream->runtime; - struct mtk_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; - int ret; - - memif->substream = substream; - - snd_soc_set_runtime_hwparams(substream, &mtk_afe_hardware); - - /* - * Capture cannot use ping-pong buffer since hw_ptr at IRQ may be - * smaller than period_size due to AFE's internal buffer. - * This easily leads to overrun when avail_min is period_size. - * One more period can hold the possible unread buffer. - */ - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { - ret = snd_pcm_hw_constraint_minmax(runtime, - SNDRV_PCM_HW_PARAM_PERIODS, - 3, - mtk_afe_hardware.periods_max); - if (ret < 0) { - dev_err(afe->dev, "hw_constraint_minmax failed\n"); - return ret; - } - } - ret = snd_pcm_hw_constraint_integer(runtime, - SNDRV_PCM_HW_PARAM_PERIODS); - if (ret < 0) - dev_err(afe->dev, "snd_pcm_hw_constraint_integer failed\n"); - return ret; -} - -static void mtk_afe_dais_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - struct mtk_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; - - memif->substream = NULL; -} - -static int mtk_afe_dais_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - struct mtk_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; - int msb_at_bit33 = 0; - int ret; - - dev_dbg(afe->dev, - "%s period = %u, rate= %u, channels=%u\n", - __func__, params_period_size(params), params_rate(params), - params_channels(params)); - - ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); - if (ret < 0) - return ret; - - msb_at_bit33 = upper_32_bits(substream->runtime->dma_addr) ? 1 : 0; - memif->phys_buf_addr = lower_32_bits(substream->runtime->dma_addr); - memif->buffer_size = substream->runtime->dma_bytes; - - /* start */ - regmap_write(afe->regmap, - memif->data->reg_ofs_base, memif->phys_buf_addr); - /* end */ - regmap_write(afe->regmap, - memif->data->reg_ofs_base + AFE_BASE_END_OFFSET, - memif->phys_buf_addr + memif->buffer_size - 1); - - /* set MSB to 33-bit */ - regmap_update_bits(afe->regmap, AFE_MEMIF_MSB, - 1 << memif->data->msb_shift, - msb_at_bit33 << memif->data->msb_shift); - - /* set channel */ - if (memif->data->mono_shift >= 0) { - unsigned int mono = (params_channels(params) == 1) ? 1 : 0; - - regmap_update_bits(afe->regmap, AFE_DAC_CON1, - 1 << memif->data->mono_shift, - mono << memif->data->mono_shift); - } - - /* set rate */ - if (memif->data->fs_shift < 0) - return 0; - if (memif->data->id == MTK_AFE_MEMIF_DAI || - memif->data->id == MTK_AFE_MEMIF_MOD_DAI) { - unsigned int val; - - switch (params_rate(params)) { - case 8000: - val = 0; - break; - case 16000: - val = 1; - break; - case 32000: - val = 2; - break; - default: - return -EINVAL; - } - - if (memif->data->id == MTK_AFE_MEMIF_DAI) - regmap_update_bits(afe->regmap, AFE_DAC_CON0, - 0x3 << memif->data->fs_shift, - val << memif->data->fs_shift); - else - regmap_update_bits(afe->regmap, AFE_DAC_CON1, - 0x3 << memif->data->fs_shift, - val << memif->data->fs_shift); - - } else { - int fs = mtk_afe_i2s_fs(params_rate(params)); - - if (fs < 0) - return -EINVAL; - - regmap_update_bits(afe->regmap, AFE_DAC_CON1, - 0xf << memif->data->fs_shift, - fs << memif->data->fs_shift); - } - - return 0; -} - -static int mtk_afe_dais_hw_free(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - return snd_pcm_lib_free_pages(substream); -} - -static int mtk_afe_dais_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_pcm_runtime * const runtime = substream->runtime; - struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform); - struct mtk_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; - unsigned int counter = runtime->period_size; - - dev_info(afe->dev, "%s %s cmd=%d\n", __func__, memif->data->name, cmd); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - if (memif->data->enable_shift >= 0) - regmap_update_bits(afe->regmap, AFE_DAC_CON0, - 1 << memif->data->enable_shift, - 1 << memif->data->enable_shift); - - /* set irq counter */ - regmap_update_bits(afe->regmap, - memif->data->irq_reg_cnt, - 0x3ffff << memif->data->irq_cnt_shift, - counter << memif->data->irq_cnt_shift); - - /* set irq fs */ - if (memif->data->irq_fs_shift >= 0) { - int fs = mtk_afe_i2s_fs(runtime->rate); - - if (fs < 0) - return -EINVAL; - - regmap_update_bits(afe->regmap, - AFE_IRQ_MCU_CON, - 0xf << memif->data->irq_fs_shift, - fs << memif->data->irq_fs_shift); - } - /* enable interrupt */ - regmap_update_bits(afe->regmap, AFE_IRQ_MCU_CON, - 1 << memif->data->irq_en_shift, - 1 << memif->data->irq_en_shift); - - return 0; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - if (memif->data->enable_shift >= 0) - regmap_update_bits(afe->regmap, AFE_DAC_CON0, - 1 << memif->data->enable_shift, 0); - /* disable interrupt */ - regmap_update_bits(afe->regmap, AFE_IRQ_MCU_CON, - 1 << memif->data->irq_en_shift, - 0 << memif->data->irq_en_shift); - /* and clear pending IRQ */ - regmap_write(afe->regmap, AFE_IRQ_CLR, - 1 << memif->data->irq_clr_shift); - return 0; - default: - return -EINVAL; - } -} - -/* FE DAIs */ -static const struct snd_soc_dai_ops mtk_afe_dai_ops = { - .startup = mtk_afe_dais_startup, - .shutdown = mtk_afe_dais_shutdown, - .hw_params = mtk_afe_dais_hw_params, - .hw_free = mtk_afe_dais_hw_free, - .trigger = mtk_afe_dais_trigger, -}; - -/* BE DAIs */ -static const struct snd_soc_dai_ops mtk_afe_i2s_ops = { - .startup = mtk_afe_i2s_startup, - .shutdown = mtk_afe_i2s_shutdown, - .prepare = mtk_afe_i2s_prepare, -}; - -static const struct snd_soc_dai_ops mtk_afe_hdmi_ops = { - .startup = mtk_afe_hdmi_startup, - .shutdown = mtk_afe_hdmi_shutdown, - .prepare = mtk_afe_hdmi_prepare, - .trigger = mtk_afe_hdmi_trigger, - -}; - -static int mtk_afe_runtime_suspend(struct device *dev); -static int mtk_afe_runtime_resume(struct device *dev); - -static int mtk_afe_dai_suspend(struct snd_soc_dai *dai) -{ - struct mtk_afe *afe = snd_soc_dai_get_drvdata(dai); - int i; - - dev_dbg(afe->dev, "%s\n", __func__); - if (pm_runtime_status_suspended(afe->dev) || afe->suspended) - return 0; - - for (i = 0; i < ARRAY_SIZE(mtk_afe_backup_list); i++) - regmap_read(afe->regmap, mtk_afe_backup_list[i], - &afe->backup_regs[i]); - - afe->suspended = true; - mtk_afe_runtime_suspend(afe->dev); - return 0; -} - -static int mtk_afe_dai_resume(struct snd_soc_dai *dai) -{ - struct mtk_afe *afe = snd_soc_dai_get_drvdata(dai); - int i = 0; - - dev_dbg(afe->dev, "%s\n", __func__); - if (pm_runtime_status_suspended(afe->dev) || !afe->suspended) - return 0; - - mtk_afe_runtime_resume(afe->dev); - - for (i = 0; i < ARRAY_SIZE(mtk_afe_backup_list); i++) - regmap_write(afe->regmap, mtk_afe_backup_list[i], - afe->backup_regs[i]); - - afe->suspended = false; - return 0; -} - -static struct snd_soc_dai_driver mtk_afe_pcm_dais[] = { - /* FE DAIs: memory intefaces to CPU */ - { - .name = "DL1", /* downlink 1 */ - .id = MTK_AFE_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_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &mtk_afe_dai_ops, - }, { - .name = "VUL", /* voice uplink */ - .id = MTK_AFE_MEMIF_VUL, - .suspend = mtk_afe_dai_suspend, - .resume = mtk_afe_dai_resume, - .capture = { - .stream_name = "VUL", - .channels_min = 1, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_8000_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &mtk_afe_dai_ops, - }, { - /* BE DAIs */ - .name = "I2S", - .id = MTK_AFE_IO_I2S, - .playback = { - .stream_name = "I2S Playback", - .channels_min = 1, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_8000_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .capture = { - .stream_name = "I2S Capture", - .channels_min = 1, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_8000_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &mtk_afe_i2s_ops, - .symmetric_rates = 1, - }, -}; - -static struct snd_soc_dai_driver mtk_afe_hdmi_dais[] = { - /* FE DAIs */ - { - .name = "HDMI", - .id = MTK_AFE_MEMIF_HDMI, - .suspend = mtk_afe_dai_suspend, - .resume = mtk_afe_dai_resume, - .playback = { - .stream_name = "HDMI", - .channels_min = 2, - .channels_max = 8, - .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | - SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | - SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | - SNDRV_PCM_RATE_192000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &mtk_afe_dai_ops, - }, { - /* BE DAIs */ - .name = "HDMIO", - .id = MTK_AFE_IO_HDMI, - .playback = { - .stream_name = "HDMIO Playback", - .channels_min = 2, - .channels_max = 8, - .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | - SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | - SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | - SNDRV_PCM_RATE_192000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &mtk_afe_hdmi_ops, - }, -}; - -static const struct snd_kcontrol_new mtk_afe_o03_mix[] = { - SOC_DAPM_SINGLE_AUTODISABLE("I05 Switch", AFE_CONN1, 21, 1, 0), -}; - -static const struct snd_kcontrol_new mtk_afe_o04_mix[] = { - SOC_DAPM_SINGLE_AUTODISABLE("I06 Switch", AFE_CONN2, 6, 1, 0), -}; - -static const struct snd_kcontrol_new mtk_afe_o09_mix[] = { - SOC_DAPM_SINGLE_AUTODISABLE("I03 Switch", AFE_CONN3, 0, 1, 0), - SOC_DAPM_SINGLE_AUTODISABLE("I17 Switch", AFE_CONN7, 30, 1, 0), -}; - -static const struct snd_kcontrol_new mtk_afe_o10_mix[] = { - SOC_DAPM_SINGLE_AUTODISABLE("I04 Switch", AFE_CONN3, 3, 1, 0), - SOC_DAPM_SINGLE_AUTODISABLE("I18 Switch", AFE_CONN8, 0, 1, 0), -}; - -static const struct snd_soc_dapm_widget mtk_afe_pcm_widgets[] = { - /* inter-connections */ - SND_SOC_DAPM_MIXER("I03", SND_SOC_NOPM, 0, 0, NULL, 0), - SND_SOC_DAPM_MIXER("I04", SND_SOC_NOPM, 0, 0, NULL, 0), - SND_SOC_DAPM_MIXER("I05", SND_SOC_NOPM, 0, 0, NULL, 0), - SND_SOC_DAPM_MIXER("I06", SND_SOC_NOPM, 0, 0, NULL, 0), - SND_SOC_DAPM_MIXER("I17", SND_SOC_NOPM, 0, 0, NULL, 0), - SND_SOC_DAPM_MIXER("I18", SND_SOC_NOPM, 0, 0, NULL, 0), - - SND_SOC_DAPM_MIXER("O03", SND_SOC_NOPM, 0, 0, - mtk_afe_o03_mix, ARRAY_SIZE(mtk_afe_o03_mix)), - SND_SOC_DAPM_MIXER("O04", SND_SOC_NOPM, 0, 0, - mtk_afe_o04_mix, ARRAY_SIZE(mtk_afe_o04_mix)), - SND_SOC_DAPM_MIXER("O09", SND_SOC_NOPM, 0, 0, - mtk_afe_o09_mix, ARRAY_SIZE(mtk_afe_o09_mix)), - SND_SOC_DAPM_MIXER("O10", SND_SOC_NOPM, 0, 0, - mtk_afe_o10_mix, ARRAY_SIZE(mtk_afe_o10_mix)), -}; - -static const struct snd_soc_dapm_route mtk_afe_pcm_routes[] = { - {"I05", NULL, "DL1"}, - {"I06", NULL, "DL1"}, - {"I2S Playback", NULL, "O03"}, - {"I2S Playback", NULL, "O04"}, - {"VUL", NULL, "O09"}, - {"VUL", NULL, "O10"}, - {"I03", NULL, "I2S Capture"}, - {"I04", NULL, "I2S Capture"}, - {"I17", NULL, "I2S Capture"}, - {"I18", NULL, "I2S Capture"}, - { "O03", "I05 Switch", "I05" }, - { "O04", "I06 Switch", "I06" }, - { "O09", "I17 Switch", "I17" }, - { "O09", "I03 Switch", "I03" }, - { "O10", "I18 Switch", "I18" }, - { "O10", "I04 Switch", "I04" }, -}; - -static const struct snd_soc_dapm_route mtk_afe_hdmi_routes[] = { - {"HDMIO Playback", NULL, "HDMI"}, -}; - -static const struct snd_soc_component_driver mtk_afe_pcm_dai_component = { - .name = "mtk-afe-pcm-dai", - .dapm_widgets = mtk_afe_pcm_widgets, - .num_dapm_widgets = ARRAY_SIZE(mtk_afe_pcm_widgets), - .dapm_routes = mtk_afe_pcm_routes, - .num_dapm_routes = ARRAY_SIZE(mtk_afe_pcm_routes), -}; - -static const struct snd_soc_component_driver mtk_afe_hdmi_dai_component = { - .name = "mtk-afe-hdmi-dai", - .dapm_routes = mtk_afe_hdmi_routes, - .num_dapm_routes = ARRAY_SIZE(mtk_afe_hdmi_routes), -}; - -static const char *aud_clks[MTK_CLK_NUM] = { - [MTK_CLK_INFRASYS_AUD] = "infra_sys_audio_clk", - [MTK_CLK_TOP_PDN_AUD] = "top_pdn_audio", - [MTK_CLK_TOP_PDN_AUD_BUS] = "top_pdn_aud_intbus", - [MTK_CLK_I2S0_M] = "i2s0_m", - [MTK_CLK_I2S1_M] = "i2s1_m", - [MTK_CLK_I2S2_M] = "i2s2_m", - [MTK_CLK_I2S3_M] = "i2s3_m", - [MTK_CLK_I2S3_B] = "i2s3_b", - [MTK_CLK_BCK0] = "bck0", - [MTK_CLK_BCK1] = "bck1", -}; - -static const struct mtk_afe_memif_data memif_data[MTK_AFE_MEMIF_NUM] = { - { - .name = "DL1", - .id = MTK_AFE_MEMIF_DL1, - .reg_ofs_base = AFE_DL1_BASE, - .reg_ofs_cur = AFE_DL1_CUR, - .fs_shift = 0, - .mono_shift = 21, - .enable_shift = 1, - .irq_reg_cnt = AFE_IRQ_CNT1, - .irq_cnt_shift = 0, - .irq_en_shift = 0, - .irq_fs_shift = 4, - .irq_clr_shift = 0, - .msb_shift = 0, - }, { - .name = "DL2", - .id = MTK_AFE_MEMIF_DL2, - .reg_ofs_base = AFE_DL2_BASE, - .reg_ofs_cur = AFE_DL2_CUR, - .fs_shift = 4, - .mono_shift = 22, - .enable_shift = 2, - .irq_reg_cnt = AFE_IRQ_CNT1, - .irq_cnt_shift = 20, - .irq_en_shift = 2, - .irq_fs_shift = 16, - .irq_clr_shift = 2, - .msb_shift = 1, - }, { - .name = "VUL", - .id = MTK_AFE_MEMIF_VUL, - .reg_ofs_base = AFE_VUL_BASE, - .reg_ofs_cur = AFE_VUL_CUR, - .fs_shift = 16, - .mono_shift = 27, - .enable_shift = 3, - .irq_reg_cnt = AFE_IRQ_CNT2, - .irq_cnt_shift = 0, - .irq_en_shift = 1, - .irq_fs_shift = 8, - .irq_clr_shift = 1, - .msb_shift = 6, - }, { - .name = "DAI", - .id = MTK_AFE_MEMIF_DAI, - .reg_ofs_base = AFE_DAI_BASE, - .reg_ofs_cur = AFE_DAI_CUR, - .fs_shift = 24, - .mono_shift = -1, - .enable_shift = 4, - .irq_reg_cnt = AFE_IRQ_CNT2, - .irq_cnt_shift = 20, - .irq_en_shift = 3, - .irq_fs_shift = 20, - .irq_clr_shift = 3, - .msb_shift = 5, - }, { - .name = "AWB", - .id = MTK_AFE_MEMIF_AWB, - .reg_ofs_base = AFE_AWB_BASE, - .reg_ofs_cur = AFE_AWB_CUR, - .fs_shift = 12, - .mono_shift = 24, - .enable_shift = 6, - .irq_reg_cnt = AFE_IRQ_CNT7, - .irq_cnt_shift = 0, - .irq_en_shift = 14, - .irq_fs_shift = 24, - .irq_clr_shift = 6, - .msb_shift = 3, - }, { - .name = "MOD_DAI", - .id = MTK_AFE_MEMIF_MOD_DAI, - .reg_ofs_base = AFE_MOD_PCM_BASE, - .reg_ofs_cur = AFE_MOD_PCM_CUR, - .fs_shift = 30, - .mono_shift = 30, - .enable_shift = 7, - .irq_reg_cnt = AFE_IRQ_CNT2, - .irq_cnt_shift = 20, - .irq_en_shift = 3, - .irq_fs_shift = 20, - .irq_clr_shift = 3, - .msb_shift = 4, - }, { - .name = "HDMI", - .id = MTK_AFE_MEMIF_HDMI, - .reg_ofs_base = AFE_HDMI_OUT_BASE, - .reg_ofs_cur = AFE_HDMI_OUT_CUR, - .fs_shift = -1, - .mono_shift = -1, - .enable_shift = -1, - .irq_reg_cnt = AFE_IRQ_CNT5, - .irq_cnt_shift = 0, - .irq_en_shift = 12, - .irq_fs_shift = -1, - .irq_clr_shift = 4, - .msb_shift = 8, - }, -}; - -static const struct regmap_config mtk_afe_regmap_config = { - .reg_bits = 32, - .reg_stride = 4, - .val_bits = 32, - .max_register = AFE_ADDA2_TOP_CON0, - .cache_type = REGCACHE_NONE, -}; - -static irqreturn_t mtk_afe_irq_handler(int irq, void *dev_id) -{ - struct mtk_afe *afe = dev_id; - unsigned int reg_value; - int i, ret; - - ret = regmap_read(afe->regmap, AFE_IRQ_STATUS, ®_value); - if (ret) { - dev_err(afe->dev, "%s irq status err\n", __func__); - reg_value = AFE_IRQ_STATUS_BITS; - goto err_irq; - } - - for (i = 0; i < MTK_AFE_MEMIF_NUM; i++) { - struct mtk_afe_memif *memif = &afe->memif[i]; - - if (!(reg_value & (1 << memif->data->irq_clr_shift))) - continue; - - snd_pcm_period_elapsed(memif->substream); - } - -err_irq: - /* clear irq */ - regmap_write(afe->regmap, AFE_IRQ_CLR, reg_value & AFE_IRQ_STATUS_BITS); - - return IRQ_HANDLED; -} - -static int mtk_afe_runtime_suspend(struct device *dev) -{ - struct mtk_afe *afe = dev_get_drvdata(dev); - - /* disable AFE */ - regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0); - - /* disable AFE clk */ - regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, - AUD_TCON0_PDN_AFE, AUD_TCON0_PDN_AFE); - - clk_disable_unprepare(afe->clocks[MTK_CLK_BCK0]); - clk_disable_unprepare(afe->clocks[MTK_CLK_BCK1]); - clk_disable_unprepare(afe->clocks[MTK_CLK_TOP_PDN_AUD]); - clk_disable_unprepare(afe->clocks[MTK_CLK_TOP_PDN_AUD_BUS]); - clk_disable_unprepare(afe->clocks[MTK_CLK_INFRASYS_AUD]); - return 0; -} - -static int mtk_afe_runtime_resume(struct device *dev) -{ - struct mtk_afe *afe = dev_get_drvdata(dev); - int ret; - - ret = clk_prepare_enable(afe->clocks[MTK_CLK_INFRASYS_AUD]); - if (ret) - return ret; - - ret = clk_prepare_enable(afe->clocks[MTK_CLK_TOP_PDN_AUD_BUS]); - if (ret) - goto err_infra; - - ret = clk_prepare_enable(afe->clocks[MTK_CLK_TOP_PDN_AUD]); - if (ret) - goto err_top_aud_bus; - - ret = clk_prepare_enable(afe->clocks[MTK_CLK_BCK0]); - if (ret) - goto err_top_aud; - - ret = clk_prepare_enable(afe->clocks[MTK_CLK_BCK1]); - if (ret) - goto err_bck0; - - /* enable AFE clk */ - regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUD_TCON0_PDN_AFE, 0); - - /* set O3/O4 16bits */ - regmap_update_bits(afe->regmap, AFE_CONN_24BIT, - AFE_CONN_24BIT_O03 | AFE_CONN_24BIT_O04, 0); - - /* unmask all IRQs */ - regmap_update_bits(afe->regmap, AFE_IRQ_MCU_EN, 0xff, 0xff); - - /* enable AFE */ - regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0x1); - return 0; - -err_bck0: - clk_disable_unprepare(afe->clocks[MTK_CLK_BCK0]); -err_top_aud: - clk_disable_unprepare(afe->clocks[MTK_CLK_TOP_PDN_AUD]); -err_top_aud_bus: - clk_disable_unprepare(afe->clocks[MTK_CLK_TOP_PDN_AUD_BUS]); -err_infra: - clk_disable_unprepare(afe->clocks[MTK_CLK_INFRASYS_AUD]); - return ret; -} - -static int mtk_afe_init_audio_clk(struct mtk_afe *afe) -{ - size_t i; - - for (i = 0; i < ARRAY_SIZE(aud_clks); i++) { - afe->clocks[i] = devm_clk_get(afe->dev, aud_clks[i]); - if (IS_ERR(afe->clocks[i])) { - dev_err(afe->dev, "%s devm_clk_get %s fail\n", - __func__, aud_clks[i]); - return PTR_ERR(afe->clocks[i]); - } - } - clk_set_rate(afe->clocks[MTK_CLK_BCK0], 22579200); /* 22M */ - clk_set_rate(afe->clocks[MTK_CLK_BCK1], 24576000); /* 24M */ - return 0; -} - -static int mtk_afe_pcm_dev_probe(struct platform_device *pdev) -{ - int ret, i; - unsigned int irq_id; - struct mtk_afe *afe; - struct resource *res; - - ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(33)); - if (ret) - return ret; - - afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL); - if (!afe) - return -ENOMEM; - - afe->dev = &pdev->dev; - - irq_id = platform_get_irq(pdev, 0); - if (!irq_id) { - dev_err(afe->dev, "np %s no irq\n", afe->dev->of_node->name); - return -ENXIO; - } - ret = devm_request_irq(afe->dev, irq_id, mtk_afe_irq_handler, - 0, "Afe_ISR_Handle", (void *)afe); - if (ret) { - dev_err(afe->dev, "could not request_irq\n"); - return ret; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - afe->base_addr = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(afe->base_addr)) - return PTR_ERR(afe->base_addr); - - afe->regmap = devm_regmap_init_mmio(&pdev->dev, afe->base_addr, - &mtk_afe_regmap_config); - if (IS_ERR(afe->regmap)) - return PTR_ERR(afe->regmap); - - /* initial audio related clock */ - ret = mtk_afe_init_audio_clk(afe); - if (ret) { - dev_err(afe->dev, "mtk_afe_init_audio_clk fail\n"); - return ret; - } - - for (i = 0; i < MTK_AFE_MEMIF_NUM; i++) - afe->memif[i].data = &memif_data[i]; - - platform_set_drvdata(pdev, afe); - - pm_runtime_enable(&pdev->dev); - if (!pm_runtime_enabled(&pdev->dev)) { - ret = mtk_afe_runtime_resume(&pdev->dev); - if (ret) - goto err_pm_disable; - } - - ret = snd_soc_register_platform(&pdev->dev, &mtk_afe_pcm_platform); - if (ret) - goto err_pm_disable; - - ret = snd_soc_register_component(&pdev->dev, - &mtk_afe_pcm_dai_component, - mtk_afe_pcm_dais, - ARRAY_SIZE(mtk_afe_pcm_dais)); - if (ret) - goto err_platform; - - ret = snd_soc_register_component(&pdev->dev, - &mtk_afe_hdmi_dai_component, - mtk_afe_hdmi_dais, - ARRAY_SIZE(mtk_afe_hdmi_dais)); - if (ret) - goto err_comp; - - dev_info(&pdev->dev, "MTK AFE driver initialized.\n"); - return 0; - -err_comp: - snd_soc_unregister_component(&pdev->dev); -err_platform: - snd_soc_unregister_platform(&pdev->dev); -err_pm_disable: - pm_runtime_disable(&pdev->dev); - return ret; -} - -static int mtk_afe_pcm_dev_remove(struct platform_device *pdev) -{ - pm_runtime_disable(&pdev->dev); - if (!pm_runtime_status_suspended(&pdev->dev)) - mtk_afe_runtime_suspend(&pdev->dev); - snd_soc_unregister_component(&pdev->dev); - snd_soc_unregister_platform(&pdev->dev); - return 0; -} - -static const struct of_device_id mtk_afe_pcm_dt_match[] = { - { .compatible = "mediatek,mt8173-afe-pcm", }, - { } -}; -MODULE_DEVICE_TABLE(of, mtk_afe_pcm_dt_match); - -static const struct dev_pm_ops mtk_afe_pm_ops = { - SET_RUNTIME_PM_OPS(mtk_afe_runtime_suspend, mtk_afe_runtime_resume, - NULL) -}; - -static struct platform_driver mtk_afe_pcm_driver = { - .driver = { - .name = "mtk-afe-pcm", - .of_match_table = mtk_afe_pcm_dt_match, - .pm = &mtk_afe_pm_ops, - }, - .probe = mtk_afe_pcm_dev_probe, - .remove = mtk_afe_pcm_dev_remove, -}; - -module_platform_driver(mtk_afe_pcm_driver); - -MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver"); -MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>"); -MODULE_LICENSE("GPL v2"); |