From 5debf4ae138c81321832d41203483696cac1c580 Mon Sep 17 00:00:00 2001 From: Syed Saba Kareem Date: Mon, 26 Jun 2023 19:25:14 +0530 Subject: [PATCH] ASoC: amd: acp: add pm ops support for rembrandt platform Add pm ops for rembrandt platform. Signed-off-by: Syed Saba Kareem Link: https://lore.kernel.org/r/20230626135515.1252063-11-Syed.SabaKareem@amd.com Signed-off-by: Mark Brown --- sound/soc/amd/acp/acp-legacy-common.c | 208 ++++++++++++++++++++++++++++++++++ sound/soc/amd/acp/acp-rembrandt.c | 42 ++++++- sound/soc/amd/acp/amd.h | 9 ++ 3 files changed, 258 insertions(+), 1 deletion(-) diff --git a/sound/soc/amd/acp/acp-legacy-common.c b/sound/soc/amd/acp/acp-legacy-common.c index 45a45d0..ba58165 100644 --- a/sound/soc/amd/acp/acp-legacy-common.c +++ b/sound/soc/amd/acp/acp-legacy-common.c @@ -37,6 +37,214 @@ void acp_disable_interrupts(struct acp_dev_data *adata) } EXPORT_SYMBOL_NS_GPL(acp_disable_interrupts, SND_SOC_ACP_COMMON); +static void set_acp_pdm_ring_buffer(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct acp_stream *stream = runtime->private_data; + struct device *dev = dai->component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + + u32 physical_addr, pdm_size, period_bytes; + + period_bytes = frames_to_bytes(runtime, runtime->period_size); + pdm_size = frames_to_bytes(runtime, runtime->buffer_size); + physical_addr = stream->reg_offset + MEM_WINDOW_START; + + /* Init ACP PDM Ring buffer */ + writel(physical_addr, adata->acp_base + ACP_WOV_RX_RINGBUFADDR); + writel(pdm_size, adata->acp_base + ACP_WOV_RX_RINGBUFSIZE); + writel(period_bytes, adata->acp_base + ACP_WOV_RX_INTR_WATERMARK_SIZE); + writel(0x01, adata->acp_base + ACPAXI2AXI_ATU_CTRL); +} + +static void set_acp_pdm_clk(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct device *dev = dai->component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + unsigned int pdm_ctrl; + + /* Enable default ACP PDM clk */ + writel(PDM_CLK_FREQ_MASK, adata->acp_base + ACP_WOV_CLK_CTRL); + pdm_ctrl = readl(adata->acp_base + ACP_WOV_MISC_CTRL); + pdm_ctrl |= PDM_MISC_CTRL_MASK; + writel(pdm_ctrl, adata->acp_base + ACP_WOV_MISC_CTRL); + set_acp_pdm_ring_buffer(substream, dai); +} + +void restore_acp_pdm_params(struct snd_pcm_substream *substream, + struct acp_dev_data *adata) +{ + struct snd_soc_dai *dai; + struct snd_soc_pcm_runtime *soc_runtime; + u32 ext_int_ctrl; + + soc_runtime = asoc_substream_to_rtd(substream); + dai = asoc_rtd_to_cpu(soc_runtime, 0); + /* Programming channel mask and sampling rate */ + writel(adata->ch_mask, adata->acp_base + ACP_WOV_PDM_NO_OF_CHANNELS); + writel(PDM_DEC_64, adata->acp_base + ACP_WOV_PDM_DECIMATION_FACTOR); + + /* Enabling ACP Pdm interuppts */ + ext_int_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, 0)); + ext_int_ctrl |= PDM_DMA_INTR_MASK; + writel(ext_int_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, 0)); + set_acp_pdm_clk(substream, dai); +} +EXPORT_SYMBOL_NS_GPL(restore_acp_pdm_params, SND_SOC_ACP_COMMON); + +static int set_acp_i2s_dma_fifo(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct device *dev = dai->component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct acp_resource *rsrc = adata->rsrc; + struct acp_stream *stream = substream->runtime->private_data; + u32 reg_dma_size, reg_fifo_size, reg_fifo_addr; + u32 phy_addr, acp_fifo_addr, ext_int_ctrl; + unsigned int dir = substream->stream; + + switch (dai->driver->id) { + case I2S_SP_INSTANCE: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + reg_dma_size = ACP_I2S_TX_DMA_SIZE; + acp_fifo_addr = rsrc->sram_pte_offset + + SP_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_TX_FIFOADDR; + reg_fifo_size = ACP_I2S_TX_FIFOSIZE; + phy_addr = I2S_SP_TX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_I2S_TX_RINGBUFADDR); + } else { + reg_dma_size = ACP_I2S_RX_DMA_SIZE; + acp_fifo_addr = rsrc->sram_pte_offset + + SP_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_RX_FIFOADDR; + reg_fifo_size = ACP_I2S_RX_FIFOSIZE; + phy_addr = I2S_SP_RX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_I2S_RX_RINGBUFADDR); + } + break; + case I2S_BT_INSTANCE: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + reg_dma_size = ACP_BT_TX_DMA_SIZE; + acp_fifo_addr = rsrc->sram_pte_offset + + BT_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_BT_TX_FIFOADDR; + reg_fifo_size = ACP_BT_TX_FIFOSIZE; + phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_BT_TX_RINGBUFADDR); + } else { + reg_dma_size = ACP_BT_RX_DMA_SIZE; + acp_fifo_addr = rsrc->sram_pte_offset + + BT_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_BT_RX_FIFOADDR; + reg_fifo_size = ACP_BT_RX_FIFOSIZE; + phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_BT_RX_RINGBUFADDR); + } + break; + case I2S_HS_INSTANCE: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + reg_dma_size = ACP_HS_TX_DMA_SIZE; + acp_fifo_addr = rsrc->sram_pte_offset + + HS_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_HS_TX_FIFOADDR; + reg_fifo_size = ACP_HS_TX_FIFOSIZE; + phy_addr = I2S_HS_TX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_HS_TX_RINGBUFADDR); + } else { + reg_dma_size = ACP_HS_RX_DMA_SIZE; + acp_fifo_addr = rsrc->sram_pte_offset + + HS_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_HS_RX_FIFOADDR; + reg_fifo_size = ACP_HS_RX_FIFOSIZE; + phy_addr = I2S_HS_RX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_HS_RX_RINGBUFADDR); + } + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + + writel(DMA_SIZE, adata->acp_base + reg_dma_size); + writel(acp_fifo_addr, adata->acp_base + reg_fifo_addr); + writel(FIFO_SIZE, adata->acp_base + reg_fifo_size); + + ext_int_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used)); + ext_int_ctrl |= BIT(I2S_RX_THRESHOLD(rsrc->offset)) | + BIT(BT_RX_THRESHOLD(rsrc->offset)) | + BIT(I2S_TX_THRESHOLD(rsrc->offset)) | + BIT(BT_TX_THRESHOLD(rsrc->offset)) | + BIT(HS_RX_THRESHOLD(rsrc->offset)) | + BIT(HS_TX_THRESHOLD(rsrc->offset)); + + writel(ext_int_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used)); + return 0; +} + +int restore_acp_i2s_params(struct snd_pcm_substream *substream, + struct acp_dev_data *adata, + struct acp_stream *stream) +{ + struct snd_soc_dai *dai; + struct snd_soc_pcm_runtime *soc_runtime; + u32 tdm_fmt, reg_val, fmt_reg, val; + + soc_runtime = asoc_substream_to_rtd(substream); + dai = asoc_rtd_to_cpu(soc_runtime, 0); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + tdm_fmt = adata->tdm_tx_fmt[stream->dai_id - 1]; + switch (stream->dai_id) { + case I2S_BT_INSTANCE: + reg_val = ACP_BTTDM_ITER; + fmt_reg = ACP_BTTDM_TXFRMT; + break; + case I2S_SP_INSTANCE: + reg_val = ACP_I2STDM_ITER; + fmt_reg = ACP_I2STDM_TXFRMT; + break; + case I2S_HS_INSTANCE: + reg_val = ACP_HSTDM_ITER; + fmt_reg = ACP_HSTDM_TXFRMT; + break; + default: + pr_err("Invalid dai id %x\n", stream->dai_id); + return -EINVAL; + } + val = adata->xfer_tx_resolution[stream->dai_id - 1] << 3; + } else { + tdm_fmt = adata->tdm_rx_fmt[stream->dai_id - 1]; + switch (stream->dai_id) { + case I2S_BT_INSTANCE: + reg_val = ACP_BTTDM_IRER; + fmt_reg = ACP_BTTDM_RXFRMT; + break; + case I2S_SP_INSTANCE: + reg_val = ACP_I2STDM_IRER; + fmt_reg = ACP_I2STDM_RXFRMT; + break; + case I2S_HS_INSTANCE: + reg_val = ACP_HSTDM_IRER; + fmt_reg = ACP_HSTDM_RXFRMT; + break; + default: + pr_err("Invalid dai id %x\n", stream->dai_id); + return -EINVAL; + } + val = adata->xfer_rx_resolution[stream->dai_id - 1] << 3; + } + writel(val, adata->acp_base + reg_val); + if (adata->tdm_mode == TDM_ENABLE) { + writel(tdm_fmt, adata->acp_base + fmt_reg); + val = readl(adata->acp_base + reg_val); + writel(val | 0x2, adata->acp_base + reg_val); + } + return set_acp_i2s_dma_fifo(substream, dai); +} +EXPORT_SYMBOL_NS_GPL(restore_acp_i2s_params, SND_SOC_ACP_COMMON); + static int acp_power_on(struct acp_chip_info *chip) { u32 val, acp_pgfsm_stat_reg, acp_pgfsm_ctrl_reg; diff --git a/sound/soc/amd/acp/acp-rembrandt.c b/sound/soc/amd/acp/acp-rembrandt.c index ea3d4aa..89314d9 100644 --- a/sound/soc/amd/acp/acp-rembrandt.c +++ b/sound/soc/amd/acp/acp-rembrandt.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "amd.h" @@ -236,7 +237,11 @@ static int rembrandt_audio_probe(struct platform_device *pdev) acp6x_master_clock_generate(dev); acp_enable_interrupts(adata); acp_platform_register(dev); - + pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); return 0; } @@ -247,13 +252,48 @@ static void rembrandt_audio_remove(struct platform_device *pdev) acp_disable_interrupts(adata); acp_platform_unregister(dev); + pm_runtime_disable(&pdev->dev); +} + +static int __maybe_unused rmb_pcm_resume(struct device *dev) +{ + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct acp_stream *stream; + struct snd_pcm_substream *substream; + snd_pcm_uframes_t buf_in_frames; + u64 buf_size; + + acp6x_master_clock_generate(dev); + spin_lock(&adata->acp_lock); + list_for_each_entry(stream, &adata->stream_list, list) { + if (stream) { + substream = stream->substream; + if (substream && substream->runtime) { + buf_in_frames = (substream->runtime->buffer_size); + buf_size = frames_to_bytes(substream->runtime, buf_in_frames); + config_pte_for_stream(adata, stream); + config_acp_dma(adata, stream, buf_size); + if (stream->dai_id) + restore_acp_i2s_params(substream, adata, stream); + else + restore_acp_pdm_params(substream, adata); + } + } + } + spin_unlock(&adata->acp_lock); + return 0; } +static const struct dev_pm_ops rmb_dma_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(NULL, rmb_pcm_resume) +}; + static struct platform_driver rembrandt_driver = { .probe = rembrandt_audio_probe, .remove_new = rembrandt_audio_remove, .driver = { .name = "acp_asoc_rembrandt", + .pm = &rmb_dma_pm_ops, }, }; diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h index 15f772c..2ebe209 100644 --- a/sound/soc/amd/acp/amd.h +++ b/sound/soc/amd/acp/amd.h @@ -110,6 +110,7 @@ #define ACP_TIMEOUT 500 #define DELAY_US 5 +#define ACP_SUSPEND_DELAY_MS 2000 #define PDM_DMA_STAT 0x10 #define PDM_DMA_INTR_MASK 0x10000 @@ -213,6 +214,14 @@ void acp_disable_interrupts(struct acp_dev_data *adata); /* Machine configuration */ int snd_amd_acp_find_config(struct pci_dev *pci); +void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream); +void config_acp_dma(struct acp_dev_data *adata, struct acp_stream *stream, int size); +void restore_acp_pdm_params(struct snd_pcm_substream *substream, + struct acp_dev_data *adata); + +int restore_acp_i2s_params(struct snd_pcm_substream *substream, + struct acp_dev_data *adata, struct acp_stream *stream); + static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction) { u64 byte_count = 0, low = 0, high = 0; -- 2.7.4