// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) ST-Ericsson SA 2012 * * Author: Ola Lilja , * Roger Nilsson * for ST-Ericsson. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "ux500_msp_i2s.h" #include "ux500_msp_dai.h" #include "ux500_pcm.h" static int setup_pcm_multichan(struct snd_soc_dai *dai, struct ux500_msp_config *msp_config) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); struct msp_multichannel_config *multi = &msp_config->multichannel_config; if (drvdata->slots > 1) { msp_config->multichannel_configured = 1; multi->tx_multichannel_enable = true; multi->rx_multichannel_enable = true; multi->rx_comparison_enable_mode = MSP_COMPARISON_DISABLED; multi->tx_channel_0_enable = drvdata->tx_mask; multi->tx_channel_1_enable = 0; multi->tx_channel_2_enable = 0; multi->tx_channel_3_enable = 0; multi->rx_channel_0_enable = drvdata->rx_mask; multi->rx_channel_1_enable = 0; multi->rx_channel_2_enable = 0; multi->rx_channel_3_enable = 0; dev_dbg(dai->dev, "%s: Multichannel enabled. Slots: %d, TX: %u, RX: %u\n", __func__, drvdata->slots, multi->tx_channel_0_enable, multi->rx_channel_0_enable); } return 0; } static int setup_frameper(struct snd_soc_dai *dai, unsigned int rate, struct msp_protdesc *prot_desc) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); switch (drvdata->slots) { case 1: switch (rate) { case 8000: prot_desc->frame_period = FRAME_PER_SINGLE_SLOT_8_KHZ; break; case 16000: prot_desc->frame_period = FRAME_PER_SINGLE_SLOT_16_KHZ; break; case 44100: prot_desc->frame_period = FRAME_PER_SINGLE_SLOT_44_1_KHZ; break; case 48000: prot_desc->frame_period = FRAME_PER_SINGLE_SLOT_48_KHZ; break; default: dev_err(dai->dev, "%s: Error: Unsupported sample-rate (freq = %d)!\n", __func__, rate); return -EINVAL; } break; case 2: prot_desc->frame_period = FRAME_PER_2_SLOTS; break; case 8: prot_desc->frame_period = FRAME_PER_8_SLOTS; break; case 16: prot_desc->frame_period = FRAME_PER_16_SLOTS; break; default: dev_err(dai->dev, "%s: Error: Unsupported slot-count (slots = %d)!\n", __func__, drvdata->slots); return -EINVAL; } prot_desc->clocks_per_frame = prot_desc->frame_period+1; dev_dbg(dai->dev, "%s: Clocks per frame: %u\n", __func__, prot_desc->clocks_per_frame); return 0; } static int setup_pcm_framing(struct snd_soc_dai *dai, unsigned int rate, struct msp_protdesc *prot_desc) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); u32 frame_length = MSP_FRAME_LEN_1; prot_desc->frame_width = 0; switch (drvdata->slots) { case 1: frame_length = MSP_FRAME_LEN_1; break; case 2: frame_length = MSP_FRAME_LEN_2; break; case 8: frame_length = MSP_FRAME_LEN_8; break; case 16: frame_length = MSP_FRAME_LEN_16; break; default: dev_err(dai->dev, "%s: Error: Unsupported slot-count (slots = %d)!\n", __func__, drvdata->slots); return -EINVAL; } prot_desc->tx_frame_len_1 = frame_length; prot_desc->rx_frame_len_1 = frame_length; prot_desc->tx_frame_len_2 = frame_length; prot_desc->rx_frame_len_2 = frame_length; prot_desc->tx_elem_len_1 = MSP_ELEM_LEN_16; prot_desc->rx_elem_len_1 = MSP_ELEM_LEN_16; prot_desc->tx_elem_len_2 = MSP_ELEM_LEN_16; prot_desc->rx_elem_len_2 = MSP_ELEM_LEN_16; return setup_frameper(dai, rate, prot_desc); } static int setup_clocking(struct snd_soc_dai *dai, unsigned int fmt, struct ux500_msp_config *msp_config) { switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_NB_IF: msp_config->tx_fsync_pol ^= 1 << TFSPOL_SHIFT; msp_config->rx_fsync_pol ^= 1 << RFSPOL_SHIFT; break; default: dev_err(dai->dev, "%s: Error: Unsupported inversion (fmt = 0x%x)!\n", __func__, fmt); return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { case SND_SOC_DAIFMT_BC_FC: dev_dbg(dai->dev, "%s: Codec is master.\n", __func__); msp_config->iodelay = 0x20; msp_config->rx_fsync_sel = 0; msp_config->tx_fsync_sel = 1 << TFSSEL_SHIFT; msp_config->tx_clk_sel = 0; msp_config->rx_clk_sel = 0; msp_config->srg_clk_sel = 0x2 << SCKSEL_SHIFT; break; case SND_SOC_DAIFMT_BP_FP: dev_dbg(dai->dev, "%s: Codec is slave.\n", __func__); msp_config->tx_clk_sel = TX_CLK_SEL_SRG; msp_config->tx_fsync_sel = TX_SYNC_SRG_PROG; msp_config->rx_clk_sel = RX_CLK_SEL_SRG; msp_config->rx_fsync_sel = RX_SYNC_SRG; msp_config->srg_clk_sel = 1 << SCKSEL_SHIFT; break; default: dev_err(dai->dev, "%s: Error: Unsupported master (fmt = 0x%x)!\n", __func__, fmt); return -EINVAL; } return 0; } static int setup_pcm_protdesc(struct snd_soc_dai *dai, unsigned int fmt, struct msp_protdesc *prot_desc) { prot_desc->rx_phase_mode = MSP_SINGLE_PHASE; prot_desc->tx_phase_mode = MSP_SINGLE_PHASE; prot_desc->rx_phase2_start_mode = MSP_PHASE2_START_MODE_IMEDIATE; prot_desc->tx_phase2_start_mode = MSP_PHASE2_START_MODE_IMEDIATE; prot_desc->rx_byte_order = MSP_BTF_MS_BIT_FIRST; prot_desc->tx_byte_order = MSP_BTF_MS_BIT_FIRST; prot_desc->tx_fsync_pol = MSP_FSYNC_POL(MSP_FSYNC_POL_ACT_HI); prot_desc->rx_fsync_pol = MSP_FSYNC_POL_ACT_HI << RFSPOL_SHIFT; if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_DSP_A) { dev_dbg(dai->dev, "%s: DSP_A.\n", __func__); prot_desc->rx_clk_pol = MSP_RISING_EDGE; prot_desc->tx_clk_pol = MSP_FALLING_EDGE; prot_desc->rx_data_delay = MSP_DELAY_1; prot_desc->tx_data_delay = MSP_DELAY_1; } else { dev_dbg(dai->dev, "%s: DSP_B.\n", __func__); prot_desc->rx_clk_pol = MSP_FALLING_EDGE; prot_desc->tx_clk_pol = MSP_RISING_EDGE; prot_desc->rx_data_delay = MSP_DELAY_0; prot_desc->tx_data_delay = MSP_DELAY_0; } prot_desc->rx_half_word_swap = MSP_SWAP_NONE; prot_desc->tx_half_word_swap = MSP_SWAP_NONE; prot_desc->compression_mode = MSP_COMPRESS_MODE_LINEAR; prot_desc->expansion_mode = MSP_EXPAND_MODE_LINEAR; prot_desc->frame_sync_ignore = MSP_FSYNC_IGNORE; return 0; } static int setup_i2s_protdesc(struct msp_protdesc *prot_desc) { prot_desc->rx_phase_mode = MSP_DUAL_PHASE; prot_desc->tx_phase_mode = MSP_DUAL_PHASE; prot_desc->rx_phase2_start_mode = MSP_PHASE2_START_MODE_FSYNC; prot_desc->tx_phase2_start_mode = MSP_PHASE2_START_MODE_FSYNC; prot_desc->rx_byte_order = MSP_BTF_MS_BIT_FIRST; prot_desc->tx_byte_order = MSP_BTF_MS_BIT_FIRST; prot_desc->tx_fsync_pol = MSP_FSYNC_POL(MSP_FSYNC_POL_ACT_LO); prot_desc->rx_fsync_pol = MSP_FSYNC_POL_ACT_LO << RFSPOL_SHIFT; prot_desc->rx_frame_len_1 = MSP_FRAME_LEN_1; prot_desc->rx_frame_len_2 = MSP_FRAME_LEN_1; prot_desc->tx_frame_len_1 = MSP_FRAME_LEN_1; prot_desc->tx_frame_len_2 = MSP_FRAME_LEN_1; prot_desc->rx_elem_len_1 = MSP_ELEM_LEN_16; prot_desc->rx_elem_len_2 = MSP_ELEM_LEN_16; prot_desc->tx_elem_len_1 = MSP_ELEM_LEN_16; prot_desc->tx_elem_len_2 = MSP_ELEM_LEN_16; prot_desc->rx_clk_pol = MSP_RISING_EDGE; prot_desc->tx_clk_pol = MSP_FALLING_EDGE; prot_desc->rx_data_delay = MSP_DELAY_0; prot_desc->tx_data_delay = MSP_DELAY_0; prot_desc->tx_half_word_swap = MSP_SWAP_NONE; prot_desc->rx_half_word_swap = MSP_SWAP_NONE; prot_desc->compression_mode = MSP_COMPRESS_MODE_LINEAR; prot_desc->expansion_mode = MSP_EXPAND_MODE_LINEAR; prot_desc->frame_sync_ignore = MSP_FSYNC_IGNORE; return 0; } static int setup_msp_config(struct snd_pcm_substream *substream, struct snd_soc_dai *dai, struct ux500_msp_config *msp_config) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); struct msp_protdesc *prot_desc = &msp_config->protdesc; struct snd_pcm_runtime *runtime = substream->runtime; unsigned int fmt = drvdata->fmt; int ret; memset(msp_config, 0, sizeof(*msp_config)); msp_config->f_inputclk = drvdata->master_clk; msp_config->tx_fifo_config = TX_FIFO_ENABLE; msp_config->rx_fifo_config = RX_FIFO_ENABLE; msp_config->def_elem_len = 1; msp_config->direction = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? MSP_DIR_TX : MSP_DIR_RX; msp_config->data_size = MSP_DATA_BITS_32; msp_config->frame_freq = runtime->rate; dev_dbg(dai->dev, "%s: f_inputclk = %u, frame_freq = %u.\n", __func__, msp_config->f_inputclk, msp_config->frame_freq); /* To avoid division by zero */ prot_desc->clocks_per_frame = 1; dev_dbg(dai->dev, "%s: rate: %u, channels: %d.\n", __func__, runtime->rate, runtime->channels); switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK)) { case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BP_FP: dev_dbg(dai->dev, "%s: SND_SOC_DAIFMT_I2S.\n", __func__); msp_config->default_protdesc = 1; msp_config->protocol = MSP_I2S_PROTOCOL; break; case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BC_FC: dev_dbg(dai->dev, "%s: SND_SOC_DAIFMT_I2S.\n", __func__); msp_config->data_size = MSP_DATA_BITS_16; msp_config->protocol = MSP_I2S_PROTOCOL; ret = setup_i2s_protdesc(prot_desc); if (ret < 0) return ret; break; case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BP_FP: case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BC_FC: case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BP_FP: case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BC_FC: dev_dbg(dai->dev, "%s: PCM format.\n", __func__); msp_config->data_size = MSP_DATA_BITS_16; msp_config->protocol = MSP_PCM_PROTOCOL; ret = setup_pcm_protdesc(dai, fmt, prot_desc); if (ret < 0) return ret; ret = setup_pcm_multichan(dai, msp_config); if (ret < 0) return ret; ret = setup_pcm_framing(dai, runtime->rate, prot_desc); if (ret < 0) return ret; break; default: dev_err(dai->dev, "%s: Error: Unsupported format (%d)!\n", __func__, fmt); return -EINVAL; } return setup_clocking(dai, fmt, msp_config); } static int ux500_msp_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { int ret = 0; struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id, snd_pcm_stream_str(substream)); /* Enable regulator */ ret = regulator_enable(drvdata->reg_vape); if (ret != 0) { dev_err(drvdata->msp->dev, "%s: Failed to enable regulator!\n", __func__); return ret; } /* Prepare and enable clocks */ dev_dbg(dai->dev, "%s: Enabling MSP-clocks.\n", __func__); ret = clk_prepare_enable(drvdata->pclk); if (ret) { dev_err(drvdata->msp->dev, "%s: Failed to prepare/enable pclk!\n", __func__); goto err_pclk; } ret = clk_prepare_enable(drvdata->clk); if (ret) { dev_err(drvdata->msp->dev, "%s: Failed to prepare/enable clk!\n", __func__); goto err_clk; } return ret; err_clk: clk_disable_unprepare(drvdata->pclk); err_pclk: regulator_disable(drvdata->reg_vape); return ret; } static void ux500_msp_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { int ret; struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id, snd_pcm_stream_str(substream)); if (drvdata->vape_opp_constraint == 1) { prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s", 50); drvdata->vape_opp_constraint = 0; } if (ux500_msp_i2s_close(drvdata->msp, is_playback ? MSP_DIR_TX : MSP_DIR_RX)) { dev_err(dai->dev, "%s: Error: MSP %d (%s): Unable to close i2s.\n", __func__, dai->id, snd_pcm_stream_str(substream)); } /* Disable and unprepare clocks */ clk_disable_unprepare(drvdata->clk); clk_disable_unprepare(drvdata->pclk); /* Disable regulator */ ret = regulator_disable(drvdata->reg_vape); if (ret < 0) dev_err(dai->dev, "%s: ERROR: Failed to disable regulator (%d)!\n", __func__, ret); } static int ux500_msp_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { int ret = 0; struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); struct snd_pcm_runtime *runtime = substream->runtime; struct ux500_msp_config msp_config; dev_dbg(dai->dev, "%s: MSP %d (%s): Enter (rate = %d).\n", __func__, dai->id, snd_pcm_stream_str(substream), runtime->rate); setup_msp_config(substream, dai, &msp_config); ret = ux500_msp_i2s_open(drvdata->msp, &msp_config); if (ret < 0) { dev_err(dai->dev, "%s: Error: msp_setup failed (ret = %d)!\n", __func__, ret); return ret; } /* Set OPP-level */ if ((drvdata->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) && (drvdata->msp->f_bitclk > 19200000)) { /* If the bit-clock is higher than 19.2MHz, Vape should be * run in 100% OPP. Only when bit-clock is used (MSP master) */ prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP, "ux500-msp-i2s", 100); drvdata->vape_opp_constraint = 1; } else { prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP, "ux500-msp-i2s", 50); drvdata->vape_opp_constraint = 0; } return ret; } static int ux500_msp_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { unsigned int mask, slots_active; struct snd_pcm_runtime *runtime = substream->runtime; struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id, snd_pcm_stream_str(substream)); switch (drvdata->fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 1, 2); break; case SND_SOC_DAIFMT_DSP_B: case SND_SOC_DAIFMT_DSP_A: mask = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? drvdata->tx_mask : drvdata->rx_mask; slots_active = hweight32(mask); dev_dbg(dai->dev, "TDM-slots active: %d", slots_active); snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, slots_active); break; default: dev_err(dai->dev, "%s: Error: Unsupported protocol (fmt = 0x%x)!\n", __func__, drvdata->fmt); return -EINVAL; } return 0; } static int ux500_msp_dai_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); dev_dbg(dai->dev, "%s: MSP %d: Enter.\n", __func__, dai->id); switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK)) { case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BP_FP: case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BC_FC: case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BP_FP: case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BC_FC: case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BP_FP: case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BC_FC: break; default: dev_err(dai->dev, "%s: Error: Unsupported protocol/master (fmt = 0x%x)!\n", __func__, drvdata->fmt); return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: case SND_SOC_DAIFMT_NB_IF: case SND_SOC_DAIFMT_IB_IF: break; default: dev_err(dai->dev, "%s: Error: Unsupported inversion (fmt = 0x%x)!\n", __func__, drvdata->fmt); return -EINVAL; } drvdata->fmt = fmt; return 0; } static int ux500_msp_dai_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); unsigned int cap; switch (slots) { case 1: cap = 0x01; break; case 2: cap = 0x03; break; case 8: cap = 0xFF; break; case 16: cap = 0xFFFF; break; default: dev_err(dai->dev, "%s: Error: Unsupported slot-count (%d)!\n", __func__, slots); return -EINVAL; } drvdata->slots = slots; if (!(slot_width == 16)) { dev_err(dai->dev, "%s: Error: Unsupported slot-width (%d)!\n", __func__, slot_width); return -EINVAL; } drvdata->slot_width = slot_width; drvdata->tx_mask = tx_mask & cap; drvdata->rx_mask = rx_mask & cap; return 0; } static int ux500_msp_dai_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); dev_dbg(dai->dev, "%s: MSP %d: Enter. clk-id: %d, freq: %u.\n", __func__, dai->id, clk_id, freq); switch (clk_id) { case UX500_MSP_MASTER_CLOCK: drvdata->master_clk = freq; break; default: dev_err(dai->dev, "%s: MSP %d: Invalid clk-id (%d)!\n", __func__, dai->id, clk_id); return -EINVAL; } return 0; } static int ux500_msp_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { int ret = 0; struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); dev_dbg(dai->dev, "%s: MSP %d (%s): Enter (msp->id = %d, cmd = %d).\n", __func__, dai->id, snd_pcm_stream_str(substream), (int)drvdata->msp->id, cmd); ret = ux500_msp_i2s_trigger(drvdata->msp, cmd, substream->stream); return ret; } static int ux500_msp_dai_of_probe(struct snd_soc_dai *dai) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); struct snd_dmaengine_dai_dma_data *playback_dma_data; struct snd_dmaengine_dai_dma_data *capture_dma_data; playback_dma_data = devm_kzalloc(dai->dev, sizeof(*playback_dma_data), GFP_KERNEL); if (!playback_dma_data) return -ENOMEM; capture_dma_data = devm_kzalloc(dai->dev, sizeof(*capture_dma_data), GFP_KERNEL); if (!capture_dma_data) return -ENOMEM; playback_dma_data->addr = drvdata->msp->playback_dma_data.tx_rx_addr; capture_dma_data->addr = drvdata->msp->capture_dma_data.tx_rx_addr; playback_dma_data->maxburst = 4; capture_dma_data->maxburst = 4; snd_soc_dai_init_dma_data(dai, playback_dma_data, capture_dma_data); return 0; } static int ux500_msp_dai_probe(struct snd_soc_dai *dai) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev); struct msp_i2s_platform_data *pdata = dai->dev->platform_data; int ret; if (!pdata) { ret = ux500_msp_dai_of_probe(dai); return ret; } drvdata->msp->playback_dma_data.data_size = drvdata->slot_width; drvdata->msp->capture_dma_data.data_size = drvdata->slot_width; snd_soc_dai_init_dma_data(dai, &drvdata->msp->playback_dma_data, &drvdata->msp->capture_dma_data); return 0; } static const struct snd_soc_dai_ops ux500_msp_dai_ops[] = { { .set_sysclk = ux500_msp_dai_set_dai_sysclk, .set_fmt = ux500_msp_dai_set_dai_fmt, .set_tdm_slot = ux500_msp_dai_set_tdm_slot, .startup = ux500_msp_dai_startup, .shutdown = ux500_msp_dai_shutdown, .prepare = ux500_msp_dai_prepare, .trigger = ux500_msp_dai_trigger, .hw_params = ux500_msp_dai_hw_params, } }; static struct snd_soc_dai_driver ux500_msp_dai_drv = { .probe = ux500_msp_dai_probe, .playback.channels_min = UX500_MSP_MIN_CHANNELS, .playback.channels_max = UX500_MSP_MAX_CHANNELS, .playback.rates = UX500_I2S_RATES, .playback.formats = UX500_I2S_FORMATS, .capture.channels_min = UX500_MSP_MIN_CHANNELS, .capture.channels_max = UX500_MSP_MAX_CHANNELS, .capture.rates = UX500_I2S_RATES, .capture.formats = UX500_I2S_FORMATS, .ops = ux500_msp_dai_ops, }; static const struct snd_soc_component_driver ux500_msp_component = { .name = "ux500-msp", }; static int ux500_msp_drv_probe(struct platform_device *pdev) { struct ux500_msp_i2s_drvdata *drvdata; struct msp_i2s_platform_data *pdata = pdev->dev.platform_data; struct device_node *np = pdev->dev.of_node; int ret = 0; if (!pdata && !np) { dev_err(&pdev->dev, "No platform data or Device Tree found\n"); return -ENODEV; } drvdata = devm_kzalloc(&pdev->dev, sizeof(struct ux500_msp_i2s_drvdata), GFP_KERNEL); if (!drvdata) return -ENOMEM; drvdata->fmt = 0; drvdata->slots = 1; drvdata->tx_mask = 0x01; drvdata->rx_mask = 0x01; drvdata->slot_width = 16; drvdata->master_clk = MSP_INPUT_FREQ_APB; drvdata->reg_vape = devm_regulator_get(&pdev->dev, "v-ape"); if (IS_ERR(drvdata->reg_vape)) { ret = (int)PTR_ERR(drvdata->reg_vape); dev_err(&pdev->dev, "%s: ERROR: Failed to get Vape supply (%d)!\n", __func__, ret); return ret; } prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP, (char *)pdev->name, 50); drvdata->pclk = devm_clk_get(&pdev->dev, "apb_pclk"); if (IS_ERR(drvdata->pclk)) { ret = (int)PTR_ERR(drvdata->pclk); dev_err(&pdev->dev, "%s: ERROR: devm_clk_get of pclk failed (%d)!\n", __func__, ret); return ret; } drvdata->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(drvdata->clk)) { ret = (int)PTR_ERR(drvdata->clk); dev_err(&pdev->dev, "%s: ERROR: devm_clk_get failed (%d)!\n", __func__, ret); return ret; } ret = ux500_msp_i2s_init_msp(pdev, &drvdata->msp, pdev->dev.platform_data); if (!drvdata->msp) { dev_err(&pdev->dev, "%s: ERROR: Failed to init MSP-struct (%d)!", __func__, ret); return ret; } dev_set_drvdata(&pdev->dev, drvdata); ret = snd_soc_register_component(&pdev->dev, &ux500_msp_component, &ux500_msp_dai_drv, 1); if (ret < 0) { dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n", __func__, drvdata->msp->id); return ret; } ret = ux500_pcm_register_platform(pdev); if (ret < 0) { dev_err(&pdev->dev, "Error: %s: Failed to register PCM platform device!\n", __func__); goto err_reg_plat; } return 0; err_reg_plat: snd_soc_unregister_component(&pdev->dev); return ret; } static int ux500_msp_drv_remove(struct platform_device *pdev) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(&pdev->dev); ux500_pcm_unregister_platform(pdev); snd_soc_unregister_component(&pdev->dev); prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s"); ux500_msp_i2s_cleanup_msp(pdev, drvdata->msp); return 0; } static const struct of_device_id ux500_msp_i2s_match[] = { { .compatible = "stericsson,ux500-msp-i2s", }, {}, }; MODULE_DEVICE_TABLE(of, ux500_msp_i2s_match); static struct platform_driver msp_i2s_driver = { .driver = { .name = "ux500-msp-i2s", .of_match_table = ux500_msp_i2s_match, }, .probe = ux500_msp_drv_probe, .remove = ux500_msp_drv_remove, }; module_platform_driver(msp_i2s_driver); MODULE_LICENSE("GPL v2");