by Garlic Tseng

[permalink] [raw]

Subject: [alsa-devel] [PATCH 4/7] ASoC: mediatek: add mt2701 platform driver implementation.

Add mt2701 platform driver implementation for playback and capture.
The implement follow DAPM structure (memory interface as FE and I2S
as BE).
Because of the hardware design, i2s out required to be enabled when
we need to enable i2s in. This patch includes the implementation.

Signed-off-by: Garlic Tseng <[email protected]>
---
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 1689 ++++++++++++++++++++++++++++
1 file changed, 1689 insertions(+)
create mode 100644 sound/soc/mediatek/mt2701/mt2701-afe-pcm.c

diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
new file mode 100644
index 0000000..6cdc25e
--- /dev/null
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
@@ -0,0 +1,1689 @@
+/*
+ * Mediatek ALSA SoC AFE platform driver for 2701
+ *
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Garlic Tseng <[email protected]>
+ * Koro Chen <[email protected]>
+ * Hidalgo Huang <[email protected]>
+ * Ir Lian <[email protected]>
+ *
+ * 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/pm_runtime.h>
+#include <sound/soc.h>
+
+#include "mt2701-afe-common.h"
+
+#include "mt2701-afe-clock-ctrl.h"
+#include "mt2701-irq.h"
+
+#define AFE_BASE_END_OFFSET 8
+#define AFE_IRQ_STATUS_BITS 0xff
+
+static const struct snd_pcm_hardware mt2701_afe_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED
+ | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE,
+ .period_bytes_min = 1024,
+ .period_bytes_max = 1024 * 256,
+ .periods_min = 4,
+ .periods_max = 1024,
+ .buffer_bytes_max = 1024 * 1024 * 16,
+ .fifo_size = 0,
+};
+
+static snd_pcm_uframes_t mt2701_afe_pcm_pointer
+ (struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int stream_dir = substream->stream;
+ int cpu_dai_id = rtd->cpu_dai->id;
+ struct mt2701_afe_memif *memif = &afe->memif[cpu_dai_id][stream_dir];
+ 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 mt2701_afe_pcm_ops = {
+ .ioctl = snd_pcm_lib_ioctl,
+ .pointer = mt2701_afe_pcm_pointer,
+};
+
+static int mt2701_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 = mt2701_afe_hardware.buffer_bytes_max;
+ return snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ card->dev, size, size);
+}
+
+static void mt2701_afe_pcm_free(struct snd_pcm *pcm)
+{
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static const struct snd_soc_platform_driver mt2701_afe_pcm_platform = {
+ .ops = &mt2701_afe_pcm_ops,
+ .pcm_new = mt2701_afe_pcm_new,
+ .pcm_free = mt2701_afe_pcm_free,
+};
+
+struct mt2701_afe_rate {
+ unsigned int rate;
+ unsigned int regvalue;
+};
+
+static const struct mt2701_afe_rate mt2701_afe_i2s_rates[] = {
+ { .rate = 8000, .regvalue = 0 },
+ { .rate = 12000, .regvalue = 1 },
+ { .rate = 16000, .regvalue = 2 },
+ { .rate = 24000, .regvalue = 3 },
+ { .rate = 32000, .regvalue = 4 },
+ { .rate = 48000, .regvalue = 5 },
+ { .rate = 96000, .regvalue = 6 },
+ { .rate = 192000, .regvalue = 7 },
+ { .rate = 384000, .regvalue = 8 },
+ { .rate = 7350, .regvalue = 16 },
+ { .rate = 11025, .regvalue = 17 },
+ { .rate = 14700, .regvalue = 18 },
+ { .rate = 22050, .regvalue = 19 },
+ { .rate = 29400, .regvalue = 20 },
+ { .rate = 44100, .regvalue = 21 },
+ { .rate = 88200, .regvalue = 22 },
+ { .rate = 176400, .regvalue = 23 },
+ { .rate = 352800, .regvalue = 24 },
+};
+
+int mt2701_dai_num_to_i2s(struct mt2701_afe *afe, int num)
+{
+ int val = num - MT2701_IO_I2S;
+
+ if (val < 0 || val > MT2701_I2S_NUM) {
+ dev_err(afe->dev, "%s, num not available, num %d, val %d\n",
+ __func__, num, val);
+ return -1;
+ }
+ return val;
+}
+
+static int mt2701_afe_i2s_fs(unsigned int sample_rate)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mt2701_afe_i2s_rates); i++)
+ if (mt2701_afe_i2s_rates[i].rate == sample_rate)
+ return mt2701_afe_i2s_rates[i].regvalue;
+
+ return -EINVAL;
+}
+
+static int mt2701_afe_i2s_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ int clk_num = MT2701_AUD_TOP_AUD_I2S1_MCLK + i2s_num;
+ int ret = 0;
+
+ /*enable mclk*/
+ ret = clk_prepare_enable(afe->clocks[clk_num]);
+ if (ret)
+ dev_err(afe->dev, "Failed to enable mclk for I2S: %d\n",
+ i2s_num);
+
+ return ret;
+}
+
+static int mt2701_afe_i2s_path_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai,
+ int dir_invert)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ struct mt2701_i2s_path *i2s_path = &afe->i2s_path[i2s_num];
+ const struct mt2701_i2s_data *i2s_data;
+ int stream_dir = substream->stream;
+
+ if (dir_invert) {
+ if (stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
+ stream_dir = SNDRV_PCM_STREAM_CAPTURE;
+ else
+ stream_dir = SNDRV_PCM_STREAM_PLAYBACK;
+ }
+ i2s_data = i2s_path->i2s_data[stream_dir];
+
+ i2s_path->on[stream_dir]--;
+ if (i2s_path->on[stream_dir] < 0) {
+ dev_warn(afe->dev, "i2s_path->on: %d, dir: %d\n",
+ i2s_path->on[stream_dir], stream_dir);
+ i2s_path->on[stream_dir] = 0;
+ }
+ if (i2s_path->on[stream_dir])
+ return 0;
+
+ /*disable i2s*/
+ regmap_update_bits(afe->regmap, i2s_data->i2s_ctrl_reg,
+ ASYS_I2S_CON_I2S_EN, 0);
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON4,
+ 1 << i2s_data->i2s_pwn_shift,
+ 1 << i2s_data->i2s_pwn_shift);
+ return 0;
+}
+
+static void mt2701_afe_i2s_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ struct mt2701_i2s_path *i2s_path = &afe->i2s_path[i2s_num];
+ int clk_num = MT2701_AUD_TOP_AUD_I2S1_MCLK + i2s_num;
+
+ if (i2s_path->occupied[substream->stream])
+ i2s_path->occupied[substream->stream] = 0;
+ else
+ goto I2S_UNSTART;
+
+ mt2701_afe_i2s_path_shutdown(substream, dai, 0);
+
+ /*need to disable i2s-out path when disable i2s-in*/
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ mt2701_afe_i2s_path_shutdown(substream, dai, 1);
+
+I2S_UNSTART:
+ /*disable mclk*/
+ clk_disable_unprepare(afe->clocks[clk_num]);
+}
+
+static int mt2701_i2s_path_prepare_enable(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai,
+ int dir_invert)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ struct mt2701_i2s_path *i2s_path = &afe->i2s_path[i2s_num];
+ const struct mt2701_i2s_data *i2s_data;
+ struct snd_pcm_runtime * const runtime = substream->runtime;
+ int reg, fs, w_len = 1;
+ int stream_dir = substream->stream;
+ unsigned int mask = 0, val = 0;
+
+ if (dir_invert) {
+ if (stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
+ stream_dir = SNDRV_PCM_STREAM_CAPTURE;
+ else
+ stream_dir = SNDRV_PCM_STREAM_PLAYBACK;
+ }
+ i2s_data = i2s_path->i2s_data[stream_dir];
+
+ /*no need to enable if already done*/
+ i2s_path->on[stream_dir]++;
+
+ if (i2s_path->on[stream_dir] != 1)
+ return 0;
+
+ fs = mt2701_afe_i2s_fs(runtime->rate);
+
+ if (i2s_path->div_bck_to_lrck == 32)
+ w_len = 0;
+ else if (i2s_path->div_bck_to_lrck == 64)
+ w_len = 1;
+ else
+ dev_warn(dai->dev, "%s() bad bit count %d\n", __func__,
+ afe->i2s_path[i2s_num].div_bck_to_lrck);
+
+ mask = ASYS_I2S_CON_FS |
+ ASYS_I2S_CON_MULTI_CH | /*0*/
+ ASYS_I2S_CON_I2S_COUPLE_MODE | /*0*/
+ ASYS_I2S_CON_I2S_MODE |
+ ASYS_I2S_CON_WIDE_MODE;
+
+ val = ASYS_I2S_CON_FS_SET(fs) |
+ ASYS_I2S_CON_I2S_MODE |
+ ASYS_I2S_CON_WIDE_MODE_SET(w_len);
+
+ if (stream_dir == SNDRV_PCM_STREAM_CAPTURE) {
+ mask |= ASYS_I2S_IN_PHASE_FIX;
+ val |= ASYS_I2S_IN_PHASE_FIX;
+ }
+
+ regmap_update_bits(afe->regmap, i2s_data->i2s_ctrl_reg, mask, val);
+
+ if (stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
+ reg = ASMO_TIMING_CON1;
+ else
+ reg = ASMI_TIMING_CON1;
+
+ regmap_update_bits(afe->regmap, reg,
+ i2s_data->i2s_asrc_fs_mask << i2s_data->i2s_asrc_fs_shift,
+ fs << i2s_data->i2s_asrc_fs_shift);
+
+ /*enable i2s*/
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON4,
+ 1 << i2s_data->i2s_pwn_shift,
+ 0 << i2s_data->i2s_pwn_shift);
+
+ /*reset irq hw status before enable*/
+ regmap_update_bits(afe->regmap, i2s_data->i2s_ctrl_reg,
+ ASYS_I2S_CON_RESET, ASYS_I2S_CON_RESET);
+ udelay(1);
+ regmap_update_bits(afe->regmap, i2s_data->i2s_ctrl_reg,
+ ASYS_I2S_CON_RESET, 0);
+ udelay(1);
+ regmap_update_bits(afe->regmap, i2s_data->i2s_ctrl_reg,
+ ASYS_I2S_CON_I2S_EN, ASYS_I2S_CON_I2S_EN);
+ return 0;
+}
+
+static int mt2701_afe_i2s_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ int clk_domain;
+
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ struct mt2701_i2s_path *i2s_path = &afe->i2s_path[i2s_num];
+ const int mclk_rate = i2s_path->mclk_rate;
+
+ if (i2s_path->occupied[substream->stream])
+ return -EBUSY;
+ i2s_path->occupied[substream->stream] = 1;
+
+ if (MT2701_PLL_DOMAIN_0_RATE % mclk_rate == 0) {
+ clk_domain = 0;
+ } else if (MT2701_PLL_DOMAIN_1_RATE % mclk_rate == 0) {
+ clk_domain = 1;
+ } else {
+ dev_err(dai->dev, "%s() bad mclk rate %d\n",
+ __func__, mclk_rate);
+ return -EINVAL;
+ }
+ mt2701_mclk_configuration(afe, i2s_num, clk_domain, mclk_rate);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ mt2701_i2s_path_prepare_enable(substream, dai, 0);
+ } else {
+ /*need to enable i2s-out path when enable i2s-in*/
+ /*prepare for another direction "out"*/
+ mt2701_i2s_path_prepare_enable(substream, dai, 1);
+ /*prepare for "in"*/
+ mt2701_i2s_path_prepare_enable(substream, dai, 0);
+ }
+
+ return 0;
+}
+
+static int mt2701_afe_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct mt2701_afe *afe = dev_get_drvdata(dai->dev);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+ /* mclk */
+ if (dir == SND_SOC_CLOCK_IN) {
+ dev_warn(dai->dev,
+ "%s() warning: mt2701 doesn't support mclk input\n",
+ __func__);
+ return -EINVAL;
+ }
+ afe->i2s_path[i2s_num].mclk_rate = freq;
+ return 0;
+}
+
+static int mt2701_afe_i2s_set_clkdiv(struct snd_soc_dai *dai, int div_id,
+ int div)
+{
+ struct mt2701_afe *afe = dev_get_drvdata(dai->dev);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+
+ switch (div_id) {
+ case DIV_ID_MCLK_TO_BCK:
+ afe->i2s_path[i2s_num].div_mclk_to_bck = div;
+ break;
+ case DIV_ID_BCK_TO_LRCK:
+ afe->i2s_path[i2s_num].div_bck_to_lrck = div;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int mt2701_afe_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct mt2701_afe *afe = dev_get_drvdata(dai->dev);
+ int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
+
+ afe = dev_get_drvdata(dai->dev);
+ afe->i2s_path[i2s_num].format = fmt;
+ return 0;
+}
+
+static int mt2701_playback_mem_avail(struct mt2701_afe *afe, int memif_num)
+{
+ struct mt2701_afe_memif *memif_tmp;
+
+ if (memif_num >= MT2701_MEMIF_1 &&
+ memif_num < MT2701_MEMIF_SINGLE_NUM) {
+ memif_tmp =
+ &afe->memif[MT2701_MEMIF_M][SNDRV_PCM_STREAM_PLAYBACK];
+ if (memif_tmp->substream)
+ return 0;
+ } else if (memif_num == MT2701_MEMIF_M) {
+ int i;
+
+ for (i = MT2701_MEMIF_1; i < MT2701_MEMIF_SINGLE_NUM; ++i) {
+ memif_tmp = &afe->memif[i][SNDRV_PCM_STREAM_PLAYBACK];
+ if (memif_tmp->substream)
+ return 0;
+ }
+ }
+ return 1;
+}
+
+static int mt2701_afe_dais_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int stream_dir = substream->stream;
+ int memif_num = rtd->cpu_dai->id;
+ struct mt2701_afe_memif *memif = &afe->memif[memif_num][stream_dir];
+ int is_dlm = 0;
+ int ret, i;
+ struct mt2701_afe_memif *memif_tmp;
+
+ if (memif->substream) {
+ dev_warn(afe->dev, "%s memif is occupied, stream_dir %d, memif_num = %d\n",
+ __func__, stream_dir, memif_num);
+ return -EBUSY;
+ }
+
+ if (stream_dir == SNDRV_PCM_STREAM_PLAYBACK &&
+ !mt2701_playback_mem_avail(afe, memif_num)) {
+ dev_warn(afe->dev, "%s memif is not available, stream_dir %d, memif_num %d\n",
+ __func__, stream_dir, memif_num);
+ return -EBUSY;
+ }
+
+ if (memif_num == MT2701_MEMIF_M &&
+ stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
+ is_dlm = 1;
+
+ memif->substream = substream;
+
+ snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16);
+ /*enable agent*/
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON5,
+ 1 << memif->data->agent_disable_shift,
+ 0 << memif->data->agent_disable_shift);
+ if (is_dlm) {
+ for (i = MT2701_MEMIF_1; i < MT2701_MEMIF_SINGLE_NUM; ++i) {
+ memif_tmp = &afe->memif[i][SNDRV_PCM_STREAM_PLAYBACK];
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON5,
+ 1 << memif_tmp->data->agent_disable_shift,
+ 0 << memif_tmp->data->agent_disable_shift);
+ }
+ }
+
+ snd_soc_set_runtime_hwparams(substream, &mt2701_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,
+ mt2701_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");
+
+ /*require irq resource*/
+ if (!memif->irq) {
+ int irq_id = mt2701_asys_irq_acquire(afe);
+
+ if (irq_id != MT2701_IRQ_ASYS_END) {
+ /* link */
+ memif->irq = &afe->irqs[irq_id];
+ afe->irqs[irq_id].memif = memif;
+ afe->irqs[irq_id].isr = mt2701_memif_isr;
+ } else {
+ dev_err(afe->dev, "%s() error: no more asys irq\n",
+ __func__);
+ ret = -EBUSY;
+ }
+ }
+ return ret;
+}
+
+static void mt2701_afe_dais_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int stream_dir = substream->stream;
+ struct mt2701_afe_memif *memif =
+ &afe->memif[rtd->cpu_dai->id][stream_dir];
+ int irq_id, i;
+ int is_dlm = 0;
+ struct mt2701_afe_memif *memif_tmp;
+
+ irq_id = memif->irq->irq_data->irq_id;
+ if (rtd->cpu_dai->id == MT2701_MEMIF_M &&
+ stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
+ is_dlm = 1;
+
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON5,
+ 1 << memif->data->agent_disable_shift,
+ 1 << memif->data->agent_disable_shift);
+ if (is_dlm) {
+ for (i = MT2701_MEMIF_1; i < MT2701_MEMIF_SINGLE_NUM; ++i) {
+ memif_tmp = &afe->memif[i][SNDRV_PCM_STREAM_PLAYBACK];
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON5,
+ 1 << memif_tmp->data->agent_disable_shift,
+ 1 << memif_tmp->data->agent_disable_shift);
+ }
+ }
+ mt2701_asys_irq_release(afe, irq_id);
+ memif->irq = NULL;
+ afe->irqs[irq_id].memif = NULL;
+ afe->irqs[irq_id].isr = NULL;
+ memif->substream = NULL;
+}
+
+static int mt2701_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 mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int stream_dir = substream->stream;
+ struct mt2701_afe_memif *memif =
+ &afe->memif[rtd->cpu_dai->id][stream_dir];
+ int ret, fs, is_dlm = 0;
+
+ ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
+ if (ret < 0)
+ return ret;
+
+ memif->phys_buf_addr = substream->runtime->dma_addr;
+ memif->buffer_size = substream->runtime->dma_bytes;
+
+ /* set rate */
+ if (memif->data->fs_shift < 0)
+ return 0;
+
+ fs = mt2701_afe_i2s_fs(params_rate(params));
+ if (fs < 0)
+ return -EINVAL;
+
+ regmap_update_bits(afe->regmap, memif->data->fs_reg,
+ 0x1f << memif->data->fs_shift,
+ fs << memif->data->fs_shift);
+ /* set channel */
+ if (memif->data->mono_shift >= 0) {
+ unsigned int mono = (params_channels(params) == 1) ? 1 : 0;
+
+ regmap_update_bits(afe->regmap, memif->data->mono_reg,
+ 1 << memif->data->mono_shift,
+ mono << memif->data->mono_shift);
+ }
+ /* 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);
+
+ if (rtd->cpu_dai->id == MT2701_MEMIF_M &&
+ stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
+ is_dlm = 1;
+
+ if (is_dlm) { /*setting for multi-ch playback*/
+ int channels = params_channels(params);
+
+ regmap_update_bits(afe->regmap,
+ AFE_MEMIF_PBUF_SIZE,
+ AFE_MEMIF_PBUF_SIZE_DLM_MASK,
+ AFE_MEMIF_PBUF_SIZE_FULL_INTERLEAVE);
+ regmap_update_bits(afe->regmap,
+ AFE_MEMIF_PBUF_SIZE,
+ AFE_MEMIF_PBUF_SIZE_DLM_BYTE_MASK,
+ AFE_MEMIF_PBUF_SIZE_DLM_32BYTES);
+ regmap_update_bits(afe->regmap,
+ AFE_MEMIF_PBUF_SIZE,
+ AFE_MEMIF_PBUF_SIZE_DLM_CH_MASK,
+ AFE_MEMIF_PBUF_SIZE_DLM_CH(channels));
+ } else if (stream_dir == SNDRV_PCM_STREAM_PLAYBACK) {
+ regmap_update_bits(afe->regmap,
+ AFE_MEMIF_PBUF_SIZE,
+ AFE_MEMIF_PBUF_SIZE_DLM_MASK,
+ AFE_MEMIF_PBUF_SIZE_PAIR_INTERLEAVE);
+ }
+
+ return 0;
+}
+
+static int mt2701_afe_dais_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static int mt2701_afe_dais_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int stream_dir = substream->stream;
+ struct mt2701_afe_memif *memif =
+ &afe->memif[rtd->cpu_dai->id][stream_dir];
+ int hd_audio = 0;
+
+ /*set hd mode*/
+ switch (substream->runtime->format) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ hd_audio = 0;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ hd_audio = 1;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ hd_audio = 1;
+ break;
+ default:
+ dev_err(afe->dev, "%s() error: unsupported format %d\n",
+ __func__, substream->runtime->format);
+ break;
+ }
+
+ regmap_update_bits(afe->regmap, memif->data->hd_reg,
+ 1 << memif->data->hd_shift,
+ hd_audio << memif->data->hd_shift);
+
+ return 0;
+}
+
+static int mt2701_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 mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int stream_dir = substream->stream;
+ struct mt2701_afe_memif *memif =
+ &afe->memif[rtd->cpu_dai->id][stream_dir];
+ struct mt2701_afe_memif *memif_tmp;
+ struct snd_pcm_runtime * const runtime = substream->runtime;
+ unsigned int counter = runtime->period_size;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ /*memory interface enable*/
+ 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->irq->irq_data->irq_cnt_reg,
+ memif->irq->irq_data->irq_cnt_maskbit
+ << memif->irq->irq_data->irq_cnt_shift,
+ counter << (memif->irq->irq_data->irq_cnt_shift));
+ /* set irq fs */
+ if (memif->irq->irq_data->irq_fs_shift >= 0) {
+ int fs;
+
+ fs = mt2701_afe_i2s_fs(runtime->rate);
+ if (fs < 0)
+ return -EINVAL;
+
+ regmap_update_bits(afe->regmap,
+ memif->irq->irq_data->irq_fs_reg,
+ memif->irq->irq_data->irq_fs_maskbit
+ << memif->irq->irq_data->irq_fs_shift,
+ fs << memif->irq->irq_data->irq_fs_shift);
+ }
+
+ if (rtd->cpu_dai->id == MT2701_MEMIF_M &&
+ stream_dir == SNDRV_PCM_STREAM_PLAYBACK) {
+ memif_tmp = &afe->memif[MT2701_MEMIF_1][stream_dir];
+ regmap_update_bits(afe->regmap, AFE_DAC_CON0,
+ 1 << memif_tmp->data->enable_shift,
+ 1 << memif_tmp->data->enable_shift);
+ }
+ /* enable interrupt */
+ regmap_update_bits(afe->regmap,
+ memif->irq->irq_data->irq_en_reg,
+ 1 << memif->irq->irq_data->irq_en_shift,
+ 1 << memif->irq->irq_data->irq_en_shift);
+ return 0;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ /* disable interrupt */
+ regmap_update_bits(afe->regmap,
+ memif->irq->irq_data->irq_en_reg,
+ 1 << memif->irq->irq_data->irq_en_shift,
+ 0 << memif->irq->irq_data->irq_en_shift);
+ /*memory interface disable*/
+ if (memif->data->enable_shift >= 0)
+ regmap_update_bits(afe->regmap, AFE_DAC_CON0,
+ 1 << memif->data->enable_shift, 0);
+ if (rtd->cpu_dai->id == MT2701_MEMIF_M &&
+ stream_dir == SNDRV_PCM_STREAM_PLAYBACK) {
+ memif_tmp = &afe->memif[MT2701_MEMIF_1][stream_dir];
+ regmap_update_bits(afe->regmap, AFE_DAC_CON0,
+ 1 << memif_tmp->data->enable_shift,
+ 0);
+ }
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/* FE DAIs */
+static const struct snd_soc_dai_ops mt2701_afe_dai_ops = {
+ .startup = mt2701_afe_dais_startup,
+ .shutdown = mt2701_afe_dais_shutdown,
+ .hw_params = mt2701_afe_dais_hw_params,
+ .hw_free = mt2701_afe_dais_hw_free,
+ .prepare = mt2701_afe_dais_prepare,
+ .trigger = mt2701_afe_dais_trigger,
+};
+
+/* I2S BE DAIs */
+static const struct snd_soc_dai_ops mt2701_afe_i2s_ops = {
+ .startup = mt2701_afe_i2s_startup,
+ .shutdown = mt2701_afe_i2s_shutdown,
+ .prepare = mt2701_afe_i2s_prepare,
+ .set_sysclk = mt2701_afe_i2s_set_sysclk,
+ .set_clkdiv = mt2701_afe_i2s_set_clkdiv,
+ .set_fmt = mt2701_afe_i2s_set_fmt,
+};
+
+static int mt2701_afe_runtime_suspend(struct device *dev);
+static int mt2701_afe_runtime_resume(struct device *dev);
+
+static int mt2701_afe_dai_suspend(struct snd_soc_dai *dai)
+{
+ struct mt2701_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(mt2701_afe_backup_list); i++)
+ regmap_read(afe->regmap, mt2701_afe_backup_list[i],
+ &afe->backup_regs[i]);
+
+ afe->suspended = true;
+ mt2701_afe_runtime_suspend(afe->dev);
+ return 0;
+}
+
+static int mt2701_afe_dai_resume(struct snd_soc_dai *dai)
+{
+ struct mt2701_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;
+
+ mt2701_afe_runtime_resume(afe->dev);
+
+ for (i = 0; i < ARRAY_SIZE(mt2701_afe_backup_list); i++)
+ regmap_write(afe->regmap, mt2701_afe_backup_list[i],
+ afe->backup_regs[i]);
+
+ afe->suspended = false;
+ return 0;
+}
+
+static struct snd_soc_dai_driver mt2701_afe_pcm_dais[] = {
+ /* FE DAIs: memory intefaces to CPU */
+ {
+ .name = "PCM0",
+ .id = MT2701_MEMIF_1,
+ .suspend = mt2701_afe_dai_suspend,
+ .resume = mt2701_afe_dai_resume,
+ .playback = {
+ .stream_name = "DL1",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .capture = {
+ .stream_name = "UL1",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &mt2701_afe_dai_ops,
+ },
+ {
+ .name = "PCM_multi",
+ .id = MT2701_MEMIF_M,
+ .suspend = mt2701_afe_dai_suspend,
+ .resume = mt2701_afe_dai_resume,
+ .playback = {
+ .stream_name = "DLM",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+
+ },
+ .ops = &mt2701_afe_dai_ops,
+ },
+ {
+ .name = "PCM1",
+ .id = MT2701_MEMIF_2,
+ .suspend = mt2701_afe_dai_suspend,
+ .resume = mt2701_afe_dai_resume,
+ .capture = {
+ .stream_name = "UL2",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+
+ },
+ .ops = &mt2701_afe_dai_ops,
+ },
+ /* BE DAIs */
+ {
+ .name = "I2S0",
+ .id = MT2701_IO_I2S,
+ .playback = {
+ .stream_name = "I2S0 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+
+ },
+ .capture = {
+ .stream_name = "I2S0 Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+
+ },
+ .ops = &mt2701_afe_i2s_ops,
+ .symmetric_rates = 1,
+ },
+ {
+ .name = "I2S1",
+ .id = MT2701_IO_2ND_I2S,
+ .playback = {
+ .stream_name = "I2S1 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .capture = {
+ .stream_name = "I2S1 Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .ops = &mt2701_afe_i2s_ops,
+ .symmetric_rates = 1,
+ },
+ {
+ .name = "I2S2",
+ .id = MT2701_IO_3RD_I2S,
+ .playback = {
+ .stream_name = "I2S2 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .capture = {
+ .stream_name = "I2S2 Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .ops = &mt2701_afe_i2s_ops,
+ .symmetric_rates = 1,
+ },
+ {
+ .name = "I2S3",
+ .id = MT2701_IO_4TH_I2S,
+ .playback = {
+ .stream_name = "I2S3 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .capture = {
+ .stream_name = "I2S3 Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE
+ | SNDRV_PCM_FMTBIT_S24_LE
+ | SNDRV_PCM_FMTBIT_S32_LE)
+ },
+ .ops = &mt2701_afe_i2s_ops,
+ .symmetric_rates = 1,
+ },
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o00_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I00 Switch", AFE_CONN0, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o01_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I01 Switch", AFE_CONN1, 1, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o02_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I02 Switch", AFE_CONN2, 2, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o03_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I03 Switch", AFE_CONN3, 3, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o14_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I26 Switch", AFE_CONN14, 26, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o15_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I12 Switch", AFE_CONN15, 12, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o16_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I13 Switch", AFE_CONN16, 13, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o17_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I14 Switch", AFE_CONN17, 14, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o18_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I15 Switch", AFE_CONN18, 15, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o19_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I16 Switch", AFE_CONN19, 16, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o20_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I17 Switch", AFE_CONN20, 17, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o21_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I18 Switch", AFE_CONN21, 18, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o22_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I19 Switch", AFE_CONN22, 19, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o23_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I20 Switch", AFE_CONN23, 20, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o24_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I21 Switch", AFE_CONN24, 21, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_o31_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I35 Switch", AFE_CONN41, 9, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_i02_mix[] = {
+ SOC_DAPM_SINGLE("I2S0 Switch", SND_SOC_NOPM, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_i2s0[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch Out I2s0", ASYS_I2SO1_CON, 26, 1,
+ 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_i2s1[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch Out I2s1", ASYS_I2SO2_CON, 26, 1,
+ 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_i2s2[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch Out I2s2", PWR2_TOP_CON, 17, 1,
+ 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_i2s3[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch Out I2s3", PWR2_TOP_CON, 18, 1,
+ 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_i2s4[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch Out I2s4", PWR2_TOP_CON, 19, 1,
+ 0),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc0[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch asrc out0", AUDIO_TOP_CON4, 14, 1,
+ 1),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc1[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch asrc out1", AUDIO_TOP_CON4, 15, 1,
+ 1),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc2[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch asrc out2", PWR2_TOP_CON, 6, 1,
+ 1),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc3[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch asrc out3", PWR2_TOP_CON, 7, 1,
+ 1),
+};
+
+static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc4[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("Multi ch asrc out4", PWR2_TOP_CON, 8, 1,
+ 1),
+};
+
+static const struct snd_soc_dapm_widget mt2701_afe_pcm_widgets[] = {
+ /* inter-connections */
+ SND_SOC_DAPM_MIXER("I00", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I01", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I02", SND_SOC_NOPM, 0, 0, mt2701_afe_i02_mix,
+ ARRAY_SIZE(mt2701_afe_i02_mix)),
+ SND_SOC_DAPM_MIXER("I03", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I12", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I13", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I14", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I15", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I16", 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("I19", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I26", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("I35", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_MIXER("O00", SND_SOC_NOPM, 0, 0, mt2701_afe_o00_mix,
+ ARRAY_SIZE(mt2701_afe_o00_mix)),
+ SND_SOC_DAPM_MIXER("O01", SND_SOC_NOPM, 0, 0, mt2701_afe_o01_mix,
+ ARRAY_SIZE(mt2701_afe_o01_mix)),
+ SND_SOC_DAPM_MIXER("O02", SND_SOC_NOPM, 0, 0, mt2701_afe_o02_mix,
+ ARRAY_SIZE(mt2701_afe_o02_mix)),
+ SND_SOC_DAPM_MIXER("O03", SND_SOC_NOPM, 0, 0, mt2701_afe_o03_mix,
+ ARRAY_SIZE(mt2701_afe_o03_mix)),
+ SND_SOC_DAPM_MIXER("O14", SND_SOC_NOPM, 0, 0, mt2701_afe_o14_mix,
+ ARRAY_SIZE(mt2701_afe_o14_mix)),
+ SND_SOC_DAPM_MIXER("O15", SND_SOC_NOPM, 0, 0, mt2701_afe_o15_mix,
+ ARRAY_SIZE(mt2701_afe_o15_mix)),
+ SND_SOC_DAPM_MIXER("O16", SND_SOC_NOPM, 0, 0, mt2701_afe_o16_mix,
+ ARRAY_SIZE(mt2701_afe_o16_mix)),
+ SND_SOC_DAPM_MIXER("O17", SND_SOC_NOPM, 0, 0, mt2701_afe_o17_mix,
+ ARRAY_SIZE(mt2701_afe_o17_mix)),
+ SND_SOC_DAPM_MIXER("O18", SND_SOC_NOPM, 0, 0, mt2701_afe_o18_mix,
+ ARRAY_SIZE(mt2701_afe_o18_mix)),
+ SND_SOC_DAPM_MIXER("O19", SND_SOC_NOPM, 0, 0, mt2701_afe_o19_mix,
+ ARRAY_SIZE(mt2701_afe_o19_mix)),
+ SND_SOC_DAPM_MIXER("O20", SND_SOC_NOPM, 0, 0, mt2701_afe_o20_mix,
+ ARRAY_SIZE(mt2701_afe_o20_mix)),
+ SND_SOC_DAPM_MIXER("O21", SND_SOC_NOPM, 0, 0, mt2701_afe_o21_mix,
+ ARRAY_SIZE(mt2701_afe_o21_mix)),
+ SND_SOC_DAPM_MIXER("O22", SND_SOC_NOPM, 0, 0, mt2701_afe_o22_mix,
+ ARRAY_SIZE(mt2701_afe_o22_mix)),
+ SND_SOC_DAPM_MIXER("O31", SND_SOC_NOPM, 0, 0, mt2701_afe_o31_mix,
+ ARRAY_SIZE(mt2701_afe_o31_mix)),
+
+ SND_SOC_DAPM_MIXER("I12I13", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_i2s0,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_i2s0)),
+ SND_SOC_DAPM_MIXER("I14I15", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_i2s1,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_i2s1)),
+ SND_SOC_DAPM_MIXER("I16I17", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_i2s2,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_i2s2)),
+ SND_SOC_DAPM_MIXER("I18I19", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_i2s3,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_i2s3)),
+
+ SND_SOC_DAPM_MIXER("ASRC_O0", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_asrc0,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc0)),
+ SND_SOC_DAPM_MIXER("ASRC_O1", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_asrc1,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc1)),
+ SND_SOC_DAPM_MIXER("ASRC_O2", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_asrc2,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc2)),
+ SND_SOC_DAPM_MIXER("ASRC_O3", SND_SOC_NOPM, 0, 0,
+ mt2701_afe_multi_ch_out_asrc3,
+ ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc3)),
+};
+
+static const struct snd_soc_dapm_route mt2701_afe_pcm_routes[] = {
+ {"I12", NULL, "DL1"},
+ {"I13", NULL, "DL1"},
+ {"I35", NULL, "DLBT"},
+
+ {"I2S0 Playback", NULL, "O15"},
+ {"I2S0 Playback", NULL, "O16"},
+
+ {"I2S1 Playback", NULL, "O17"},
+ {"I2S1 Playback", NULL, "O18"},
+ {"I2S2 Playback", NULL, "O19"},
+ {"I2S2 Playback", NULL, "O20"},
+ {"I2S3 Playback", NULL, "O21"},
+ {"I2S3 Playback", NULL, "O22"},
+ {"BT Playback", NULL, "O31"},
+
+ {"UL1", NULL, "O00"},
+ {"UL1", NULL, "O01"},
+ {"UL2", NULL, "O02"},
+ {"UL2", NULL, "O03"},
+ {"ULBT", NULL, "O14"},
+
+ {"I00", NULL, "I2S0 Capture"},
+ {"I01", NULL, "I2S0 Capture"},
+
+ {"I02", NULL, "I2S1 Capture"},
+ {"I03", NULL, "I2S1 Capture"},
+ /*I02,03 link to UL2, also need to open I2S0*/
+ {"I02", "I2S0 Switch", "I2S0 Capture"},
+
+ {"I26", NULL, "BT Capture"},
+
+ {"ASRC_O0", "Multi ch asrc out0", "DLM"},
+ {"ASRC_O1", "Multi ch asrc out1", "DLM"},
+ {"ASRC_O2", "Multi ch asrc out2", "DLM"},
+ {"ASRC_O3", "Multi ch asrc out3", "DLM"},
+
+ {"I12I13", "Multi ch Out I2s0", "ASRC_O0"},
+ {"I14I15", "Multi ch Out I2s1", "ASRC_O1"},
+ {"I16I17", "Multi ch Out I2s2", "ASRC_O2"},
+ {"I18I19", "Multi ch Out I2s3", "ASRC_O3"},
+
+ { "I12", NULL, "I12I13" },
+ { "I13", NULL, "I12I13" },
+ { "I14", NULL, "I14I15" },
+ { "I15", NULL, "I14I15" },
+ { "I16", NULL, "I16I17" },
+ { "I17", NULL, "I16I17" },
+ { "I18", NULL, "I18I19" },
+ { "I19", NULL, "I18I19" },
+
+ { "O00", "I00 Switch", "I00" },
+ { "O01", "I01 Switch", "I01" },
+ { "O02", "I02 Switch", "I02" },
+ { "O03", "I03 Switch", "I03" },
+ { "O14", "I26 Switch", "I26" },
+ { "O15", "I12 Switch", "I12" },
+ { "O16", "I13 Switch", "I13" },
+ { "O17", "I14 Switch", "I14" },
+ { "O18", "I15 Switch", "I15" },
+ { "O19", "I16 Switch", "I16" },
+ { "O20", "I17 Switch", "I17" },
+ { "O21", "I18 Switch", "I18" },
+ { "O22", "I19 Switch", "I19" },
+ { "O31", "I35 Switch", "I35" },
+
+};
+
+static const struct snd_soc_component_driver mt2701_afe_pcm_dai_component = {
+ .name = "mt2701-afe-pcm-dai",
+ .dapm_widgets = mt2701_afe_pcm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(mt2701_afe_pcm_widgets),
+ .dapm_routes = mt2701_afe_pcm_routes,
+ .num_dapm_routes = ARRAY_SIZE(mt2701_afe_pcm_routes),
+};
+
+static const struct mt2701_afe_memif_data
+ memif_data[MT2701_MEMIF_NUM][MT2701_STREAM_DIR_NUM] = {
+ {
+ {
+ .name = "DL1",
+ .id = MT2701_MEMIF_1,
+ .reg_ofs_base = AFE_DL1_BASE,
+ .reg_ofs_cur = AFE_DL1_CUR,
+ .fs_reg = AFE_DAC_CON1,
+ .fs_shift = 0,
+ .mono_reg = AFE_DAC_CON3,
+ .mono_shift = 16,
+ .enable_shift = 1,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 0,
+ .agent_disable_shift = 6,
+ },
+ {
+ .name = "UL1",
+ .id = MT2701_MEMIF_1,
+ .reg_ofs_base = AFE_VUL_BASE,
+ .reg_ofs_cur = AFE_VUL_CUR,
+ .fs_reg = AFE_DAC_CON2,
+ .fs_shift = 0,
+ .mono_reg = AFE_DAC_CON4,
+ .mono_shift = 0,
+ .enable_shift = 10,
+ .hd_reg = AFE_MEMIF_HD_CON1,
+ .hd_shift = 0,
+ .agent_disable_shift = 0,
+ }
+ },
+ {
+ {
+ .name = "DL2",
+ .id = MT2701_MEMIF_2,
+ .reg_ofs_base = AFE_DL2_BASE,
+ .reg_ofs_cur = AFE_DL2_CUR,
+ .fs_reg = AFE_DAC_CON1,
+ .fs_shift = 5,
+ .mono_reg = AFE_DAC_CON3,
+ .mono_shift = 17,
+ .enable_shift = 2,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 2,
+ .agent_disable_shift = 7,
+ },
+ {
+ .name = "UL2",
+ .id = MT2701_MEMIF_2,
+ .reg_ofs_base = AFE_UL2_BASE,
+ .reg_ofs_cur = AFE_UL2_CUR,
+ .fs_reg = AFE_DAC_CON2,
+ .fs_shift = 5,
+ .mono_reg = AFE_DAC_CON4,
+ .mono_shift = 2,
+ .enable_shift = 11,
+ .hd_reg = AFE_MEMIF_HD_CON1,
+ .hd_shift = 2,
+ .agent_disable_shift = 1,
+ }
+ },
+ {
+ {
+ .name = "DL3",
+ .id = MT2701_MEMIF_3,
+ .reg_ofs_base = AFE_DL3_BASE,
+ .reg_ofs_cur = AFE_DL3_CUR,
+ .fs_reg = AFE_DAC_CON1,
+ .fs_shift = 10,
+ .mono_reg = AFE_DAC_CON3,
+ .mono_shift = 18,
+ .enable_shift = 3,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 4,
+ .agent_disable_shift = 8,
+ },
+ {
+ .name = "UL3",
+ .id = MT2701_MEMIF_3,
+ .reg_ofs_base = AFE_UL3_BASE,
+ .reg_ofs_cur = AFE_UL3_CUR,
+ .fs_reg = AFE_DAC_CON2,
+ .fs_shift = 10,
+ .mono_reg = AFE_DAC_CON4,
+ .mono_shift = 4,
+ .enable_shift = 12,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 0,
+ .agent_disable_shift = 2,
+ }
+ },
+ {
+ {
+ .name = "DL4",
+ .id = MT2701_MEMIF_4,
+ .reg_ofs_base = AFE_DL4_BASE,
+ .reg_ofs_cur = AFE_DL4_CUR,
+ .fs_reg = AFE_DAC_CON1,
+ .fs_shift = 15,
+ .mono_reg = AFE_DAC_CON3,
+ .mono_shift = 19,
+ .enable_shift = 4,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 6,
+ .agent_disable_shift = 9,
+ },
+ {
+ .name = "UL4",
+ .id = MT2701_MEMIF_4,
+ .reg_ofs_base = AFE_UL4_BASE,
+ .reg_ofs_cur = AFE_UL4_CUR,
+ .fs_reg = AFE_DAC_CON2,
+ .fs_shift = 15,
+ .mono_reg = AFE_DAC_CON4,
+ .mono_shift = 6,
+ .enable_shift = 13,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 6,
+ .agent_disable_shift = 3,
+ }
+ },
+ {
+ {
+ .name = "DL5",
+ .id = MT2701_MEMIF_5,
+ .reg_ofs_base = AFE_DL5_BASE,
+ .reg_ofs_cur = AFE_DL5_CUR,
+ .fs_reg = AFE_DAC_CON1,
+ .fs_shift = 20,
+ .mono_reg = AFE_DAC_CON3,
+ .mono_shift = 20,
+ .enable_shift = 5,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 8,
+ .agent_disable_shift = 10,
+ },
+ {
+ .name = "UL5",
+ .id = MT2701_MEMIF_5,
+ .reg_ofs_base = AFE_UL5_BASE,
+ .reg_ofs_cur = AFE_UL5_CUR,
+ .fs_reg = AFE_DAC_CON2,
+ .fs_shift = 20,
+ .mono_reg = AFE_DAC_CON4,
+ .mono_shift = 8,
+ .enable_shift = 14,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 8,
+ .agent_disable_shift = 4,
+ }
+ },
+ {
+ {
+ .name = "DLM",
+ .id = MT2701_MEMIF_M,
+ .reg_ofs_base = AFE_DLMCH_BASE,
+ .reg_ofs_cur = AFE_DLMCH_CUR,
+ .fs_reg = AFE_DAC_CON1,
+ .fs_shift = 0,
+ .mono_reg = -1,
+ .mono_shift = -1,
+ .enable_shift = 7,
+ .hd_reg = AFE_MEMIF_PBUF_SIZE,
+ .hd_shift = 28,
+ .agent_disable_shift = 12,
+ },
+ {
+ /*no UL multi channel support*/
+ }
+ },
+ {
+ {
+ .name = "DLBT",
+ .id = MT2701_MEMIF_BT,
+ .reg_ofs_base = AFE_ARB1_BASE,
+ .reg_ofs_cur = AFE_ARB1_CUR,
+ .fs_reg = AFE_DAC_CON3,
+ .fs_shift = 10,
+ .mono_reg = AFE_DAC_CON3,
+ .mono_shift = 22,
+ .enable_shift = 8,
+ .hd_reg = AFE_MEMIF_HD_CON0,
+ .hd_shift = 14,
+ .agent_disable_shift = 13,
+ },
+ {
+ .name = "ULBT",
+ .id = MT2701_MEMIF_BT,
+ .reg_ofs_base = AFE_DAI_BASE,
+ .reg_ofs_cur = AFE_DAI_CUR,
+ .fs_reg = AFE_DAC_CON2,
+ .fs_shift = 30,
+ .mono_reg = -1,
+ .mono_shift = -1,
+ .enable_shift = 17,
+ .hd_reg = AFE_MEMIF_HD_CON1,
+ .hd_shift = 20,
+ .agent_disable_shift = 16,
+ }
+ }
+};
+
+static const struct mt2701_afe_irq_data irq_data[MT2701_IRQ_ASYS_END] = {
+ {
+ .irq_id = MT2701_IRQ_ASYS_IRQ1,
+ .irq_cnt_reg = ASYS_IRQ1_CON,
+ .irq_cnt_shift = 0,
+ .irq_cnt_maskbit = 0xffffff,
+ .irq_fs_reg = ASYS_IRQ1_CON,
+ .irq_fs_shift = 24,
+ .irq_fs_maskbit = 0x1f,
+ .irq_en_reg = ASYS_IRQ1_CON,
+ .irq_en_shift = 31,
+ },
+ {
+ .irq_id = MT2701_IRQ_ASYS_IRQ2,
+ .irq_cnt_reg = ASYS_IRQ2_CON,
+ .irq_cnt_shift = 0,
+ .irq_cnt_maskbit = 0xffffff,
+ .irq_fs_reg = ASYS_IRQ2_CON,
+ .irq_fs_shift = 24,
+ .irq_fs_maskbit = 0x1f,
+ .irq_en_reg = ASYS_IRQ2_CON,
+ .irq_en_shift = 31,
+ },
+ {
+ .irq_id = MT2701_IRQ_ASYS_IRQ3,
+ .irq_cnt_reg = ASYS_IRQ3_CON,
+ .irq_cnt_shift = 0,
+ .irq_cnt_maskbit = 0xffffff,
+ .irq_fs_reg = ASYS_IRQ3_CON,
+ .irq_fs_shift = 24,
+ .irq_fs_maskbit = 0x1f,
+ .irq_en_reg = ASYS_IRQ3_CON,
+ .irq_en_shift = 31,
+ }
+};
+
+static const struct mt2701_i2s_data mt2701_i2s_data[MT2701_I2S_NUM][2] = {
+ {
+ {
+ .i2s_ctrl_reg = ASYS_I2SO1_CON,
+ .i2s_pwn_shift = 6,
+ .i2s_asrc_fs_shift = 0,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ {
+ .i2s_ctrl_reg = ASYS_I2SIN1_CON,
+ .i2s_pwn_shift = 0,
+ .i2s_asrc_fs_shift = 0,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ },
+ {
+ {
+ .i2s_ctrl_reg = ASYS_I2SO2_CON,
+ .i2s_pwn_shift = 7,
+ .i2s_asrc_fs_shift = 5,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ {
+ .i2s_ctrl_reg = ASYS_I2SIN2_CON,
+ .i2s_pwn_shift = 1,
+ .i2s_asrc_fs_shift = 5,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ },
+ {
+ {
+ .i2s_ctrl_reg = ASYS_I2SO3_CON,
+ .i2s_pwn_shift = 8,
+ .i2s_asrc_fs_shift = 10,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ {
+ .i2s_ctrl_reg = ASYS_I2SIN3_CON,
+ .i2s_pwn_shift = 2,
+ .i2s_asrc_fs_shift = 10,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ },
+ {
+ {
+ .i2s_ctrl_reg = ASYS_I2SO4_CON,
+ .i2s_pwn_shift = 9,
+ .i2s_asrc_fs_shift = 15,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ {
+ .i2s_ctrl_reg = ASYS_I2SIN4_CON,
+ .i2s_pwn_shift = 3,
+ .i2s_asrc_fs_shift = 15,
+ .i2s_asrc_fs_mask = 0x1f,
+
+ },
+ },
+};
+
+static const struct regmap_config mt2701_afe_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = AFE_END_ADDR,
+ .cache_type = REGCACHE_NONE,
+};
+
+static irqreturn_t mt2701_asys_isr(int irq_id, void *dev)
+{
+ int id;
+ struct mt2701_afe *afe = dev;
+ struct mt2701_afe_irq *irq;
+ u32 status;
+
+ status = mt2701_asys_irq_status(afe);
+ mt2701_asys_irq_clear(afe, status);
+
+ for (id = MT2701_IRQ_ASYS_START; id < MT2701_IRQ_ASYS_END; ++id) {
+ irq = &afe->irqs[id];
+ if (status & (0x1 << (id - MT2701_IRQ_ASYS_START)) && irq->isr)
+ irq->isr(afe, irq->memif);
+ }
+ return IRQ_HANDLED;
+}
+
+static int mt2701_afe_runtime_suspend(struct device *dev)
+{
+ struct mt2701_afe *afe = dev_get_drvdata(dev);
+
+ mt2701_afe_enable_clock(afe, 0);
+ return 0;
+}
+
+static int mt2701_afe_runtime_resume(struct device *dev)
+{
+ struct mt2701_afe *afe = dev_get_drvdata(dev);
+
+ pr_warn("%s\n", __func__);
+ mt2701_afe_enable_clock(afe, 1);
+ return 0;
+}
+
+static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
+{
+ int ret, i, j;
+ unsigned int irq_id;
+ struct mt2701_afe *afe;
+ struct resource *res;
+
+ ret = 0;
+ 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, "%s no irq found\n",
+ afe->dev->of_node->name);
+ return -ENXIO;
+ }
+ ret = devm_request_irq(afe->dev, irq_id, mt2701_asys_isr,
+ IRQF_TRIGGER_NONE, "asys-isr", (void *)afe);
+ if (ret) {
+ dev_err(afe->dev, "could not request_irq for asys-isr\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,
+ &mt2701_afe_regmap_config);
+ if (IS_ERR(afe->regmap))
+ return PTR_ERR(afe->regmap);
+
+ for (i = 0; i < MT2701_MEMIF_NUM; i++)
+ for (j = 0; j < MT2701_STREAM_DIR_NUM; ++j)
+ afe->memif[i][j].data = &memif_data[i][j];
+ for (i = 0; i < MT2701_IRQ_ASYS_END; i++)
+ afe->irqs[i].irq_data = &irq_data[i];
+
+ for (i = 0; i < MT2701_I2S_NUM; i++) {
+ afe->i2s_path[i].i2s_data[I2S_OUT]
+ = &mt2701_i2s_data[i][I2S_OUT];
+ afe->i2s_path[i].i2s_data[I2S_IN]
+ = &mt2701_i2s_data[i][I2S_IN];
+ }
+
+ /* initial audio related clock */
+ mt2701_init_clock(afe);
+
+ platform_set_drvdata(pdev, afe);
+
+ ret = snd_soc_register_platform(&pdev->dev, &mt2701_afe_pcm_platform);
+ if (ret) {
+ dev_warn(afe->dev, "err_platform\n");
+ goto err_platform;
+ }
+
+ ret = snd_soc_register_component(&pdev->dev,
+ &mt2701_afe_pcm_dai_component,
+ mt2701_afe_pcm_dais,
+ ARRAY_SIZE(mt2701_afe_pcm_dais));
+ if (ret) {
+ dev_warn(afe->dev, "err_dai_component\n");
+ goto err_dai_component;
+ }
+ /*enable afe clock*/
+ mt2701_afe_enable_clock(afe, 1);
+
+ return 0;
+err_platform:
+ snd_soc_unregister_platform(&pdev->dev);
+err_dai_component:
+ snd_soc_unregister_component(&pdev->dev);
+ return ret;
+}
+
+static int mt2701_afe_pcm_dev_remove(struct platform_device *pdev)
+{
+ struct mt2701_afe *afe = platform_get_drvdata(pdev);
+
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ mt2701_afe_runtime_suspend(&pdev->dev);
+
+ snd_soc_unregister_component(&pdev->dev);
+ snd_soc_unregister_platform(&pdev->dev);
+ /*disable afe clock*/
+ mt2701_afe_enable_clock(afe, 0);
+ return 0;
+}
+
+static const struct of_device_id mt2701_afe_pcm_dt_match[] = {
+ { .compatible = "mediatek,mt2701-audio", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mt2701_afe_pcm_dt_match);
+
+static const struct dev_pm_ops mt2701_afe_pm_ops = {
+ SET_RUNTIME_PM_OPS(mt2701_afe_runtime_suspend,
+ mt2701_afe_runtime_resume, NULL)
+};
+
+static struct platform_driver mt2701_afe_pcm_driver = {
+ .driver = {
+ .name = "mt2701-audio",
+ .of_match_table = mt2701_afe_pcm_dt_match,
+#ifdef CONFIG_PM
+ .pm = &mt2701_afe_pm_ops,
+#endif
+ },
+ .probe = mt2701_afe_pcm_dev_probe,
+ .remove = mt2701_afe_pcm_dev_remove,
+};
+
+module_platform_driver(mt2701_afe_pcm_driver);
+
+MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver for 2701");
+MODULE_AUTHOR("Garlic Tseng <[email protected]>");
+MODULE_LICENSE("GPL v2");
--
1.9.1