diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/dwc/Kconfig | 1 | ||||
| -rw-r--r-- | sound/soc/dwc/designware_i2s.c | 281 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_asrc.c | 5 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_asrc.h | 3 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_esai.c | 2 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_sai.c | 2 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_spdif.c | 2 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 4 | ||||
| -rw-r--r-- | sound/soc/sh/fsi.c | 9 | ||||
| -rw-r--r-- | sound/soc/soc-devres.c | 2 |
10 files changed, 241 insertions, 70 deletions
diff --git a/sound/soc/dwc/Kconfig b/sound/soc/dwc/Kconfig index e334900..d50e085 100644 --- a/sound/soc/dwc/Kconfig +++ b/sound/soc/dwc/Kconfig @@ -1,6 +1,7 @@ config SND_DESIGNWARE_I2S tristate "Synopsys I2S Device Driver" depends on CLKDEV_LOOKUP + select SND_SOC_GENERIC_DMAENGINE_PCM help Say Y or M if you want to add support for I2S driver for Synopsys desigwnware I2S device. The device supports upto diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c index 06d3a34..a3e97b4 100644 --- a/sound/soc/dwc/designware_i2s.c +++ b/sound/soc/dwc/designware_i2s.c @@ -22,6 +22,7 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> /* common register for all channel */ #define IER 0x000 @@ -54,9 +55,39 @@ #define I2S_COMP_VERSION 0x01F8 #define I2S_COMP_TYPE 0x01FC +/* + * Component parameter register fields - define the I2S block's + * configuration. + */ +#define COMP1_TX_WORDSIZE_3(r) (((r) & GENMASK(27, 25)) >> 25) +#define COMP1_TX_WORDSIZE_2(r) (((r) & GENMASK(24, 22)) >> 22) +#define COMP1_TX_WORDSIZE_1(r) (((r) & GENMASK(21, 19)) >> 19) +#define COMP1_TX_WORDSIZE_0(r) (((r) & GENMASK(18, 16)) >> 16) +#define COMP1_TX_CHANNELS(r) (((r) & GENMASK(10, 9)) >> 9) +#define COMP1_RX_CHANNELS(r) (((r) & GENMASK(8, 7)) >> 7) +#define COMP1_RX_ENABLED(r) (((r) & BIT(6)) >> 6) +#define COMP1_TX_ENABLED(r) (((r) & BIT(5)) >> 5) +#define COMP1_MODE_EN(r) (((r) & BIT(4)) >> 4) +#define COMP1_FIFO_DEPTH_GLOBAL(r) (((r) & GENMASK(3, 2)) >> 2) +#define COMP1_APB_DATA_WIDTH(r) (((r) & GENMASK(1, 0)) >> 0) + +#define COMP2_RX_WORDSIZE_3(r) (((r) & GENMASK(12, 10)) >> 10) +#define COMP2_RX_WORDSIZE_2(r) (((r) & GENMASK(9, 7)) >> 7) +#define COMP2_RX_WORDSIZE_1(r) (((r) & GENMASK(5, 3)) >> 3) +#define COMP2_RX_WORDSIZE_0(r) (((r) & GENMASK(2, 0)) >> 0) + +/* Number of entries in WORDSIZE and DATA_WIDTH parameter registers */ +#define COMP_MAX_WORDSIZE (1 << 3) +#define COMP_MAX_DATA_WIDTH (1 << 2) + #define MAX_CHANNEL_NUM 8 #define MIN_CHANNEL_NUM 2 +union dw_i2s_snd_dma_data { + struct i2s_dma_data pd; + struct snd_dmaengine_dai_dma_data dt; +}; + struct dw_i2s_dev { void __iomem *i2s_base; struct clk *clk; @@ -65,8 +96,8 @@ struct dw_i2s_dev { struct device *dev; /* data related to DMA transfers b/w i2s and DMAC */ - struct i2s_dma_data play_dma_data; - struct i2s_dma_data capture_dma_data; + union dw_i2s_snd_dma_data play_dma_data; + union dw_i2s_snd_dma_data capture_dma_data; struct i2s_clk_config_data config; int (*i2s_clk_cfg)(struct i2s_clk_config_data *config); }; @@ -153,7 +184,7 @@ static int dw_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) { struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(cpu_dai); - struct i2s_dma_data *dma_data = NULL; + union dw_i2s_snd_dma_data *dma_data = NULL; if (!(dev->capability & DWC_I2S_RECORD) && (substream->stream == SNDRV_PCM_STREAM_CAPTURE)) @@ -242,13 +273,21 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream, config->sample_rate = params_rate(params); - if (!dev->i2s_clk_cfg) - return -EINVAL; + if (dev->i2s_clk_cfg) { + ret = dev->i2s_clk_cfg(config); + if (ret < 0) { + dev_err(dev->dev, "runtime audio clk config fail\n"); + return ret; + } + } else { + u32 bitclk = config->sample_rate * config->data_width * 2; - ret = dev->i2s_clk_cfg(config); - if (ret < 0) { - dev_err(dev->dev, "runtime audio clk config fail\n"); - return ret; + ret = clk_set_rate(dev->clk, bitclk); + if (ret) { + dev_err(dev->dev, "Can't set I2S clock rate: %d\n", + ret); + return ret; + } } return 0; @@ -335,39 +374,152 @@ static int dw_i2s_resume(struct snd_soc_dai *dai) #define dw_i2s_resume NULL #endif -static void dw_configure_dai_by_pd(struct dw_i2s_dev *dev, +/* + * The following tables allow a direct lookup of various parameters + * defined in the I2S block's configuration in terms of sound system + * parameters. Each table is sized to the number of entries possible + * according to the number of configuration bits describing an I2S + * block parameter. + */ + +/* Maximum bit resolution of a channel - not uniformly spaced */ +static const u32 fifo_width[COMP_MAX_WORDSIZE] = { + 12, 16, 20, 24, 32, 0, 0, 0 +}; + +/* Width of (DMA) bus */ +static const u32 bus_widths[COMP_MAX_DATA_WIDTH] = { + DMA_SLAVE_BUSWIDTH_1_BYTE, + DMA_SLAVE_BUSWIDTH_2_BYTES, + DMA_SLAVE_BUSWIDTH_4_BYTES, + DMA_SLAVE_BUSWIDTH_UNDEFINED +}; + +/* PCM format to support channel resolution */ +static const u32 formats[COMP_MAX_WORDSIZE] = { + SNDRV_PCM_FMTBIT_S16_LE, + SNDRV_PCM_FMTBIT_S16_LE, + SNDRV_PCM_FMTBIT_S24_LE, + SNDRV_PCM_FMTBIT_S24_LE, + SNDRV_PCM_FMTBIT_S32_LE, + 0, + 0, + 0 +}; + +static int dw_configure_dai(struct dw_i2s_dev *dev, struct snd_soc_dai_driver *dw_i2s_dai, - struct resource *res, - const struct i2s_platform_data *pdata) + unsigned int rates) { - /* Set DMA slaves info */ - - dev->play_dma_data.data = pdata->play_dma_data; - dev->capture_dma_data.data = pdata->capture_dma_data; - dev->play_dma_data.addr = res->start + I2S_TXDMA; - dev->capture_dma_data.addr = res->start + I2S_RXDMA; - dev->play_dma_data.max_burst = 16; - dev->capture_dma_data.max_burst = 16; - dev->play_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - dev->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - dev->play_dma_data.filter = pdata->filter; - dev->capture_dma_data.filter = pdata->filter; - - if (pdata->cap & DWC_I2S_PLAY) { + /* + * Read component parameter registers to extract + * the I2S block's configuration. + */ + u32 comp1 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_1); + u32 comp2 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_2); + u32 idx; + + if (COMP1_TX_ENABLED(comp1)) { dev_dbg(dev->dev, " designware: play supported\n"); + idx = COMP1_TX_WORDSIZE_0(comp1); + if (WARN_ON(idx >= ARRAY_SIZE(formats))) + return -EINVAL; dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM; - dw_i2s_dai->playback.channels_max = pdata->channel; - dw_i2s_dai->playback.formats = pdata->snd_fmts; - dw_i2s_dai->playback.rates = pdata->snd_rates; + dw_i2s_dai->playback.channels_max = + 1 << (COMP1_TX_CHANNELS(comp1) + 1); + dw_i2s_dai->playback.formats = formats[idx]; + dw_i2s_dai->playback.rates = rates; } - if (pdata->cap & DWC_I2S_RECORD) { + if (COMP1_RX_ENABLED(comp1)) { dev_dbg(dev->dev, "designware: record supported\n"); + idx = COMP2_RX_WORDSIZE_0(comp2); + if (WARN_ON(idx >= ARRAY_SIZE(formats))) + return -EINVAL; dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM; - dw_i2s_dai->capture.channels_max = pdata->channel; - dw_i2s_dai->capture.formats = pdata->snd_fmts; - dw_i2s_dai->capture.rates = pdata->snd_rates; + dw_i2s_dai->capture.channels_max = + 1 << (COMP1_RX_CHANNELS(comp1) + 1); + dw_i2s_dai->capture.formats = formats[idx]; + dw_i2s_dai->capture.rates = rates; } + + return 0; +} + +static int dw_configure_dai_by_pd(struct dw_i2s_dev *dev, + struct snd_soc_dai_driver *dw_i2s_dai, + struct resource *res, + const struct i2s_platform_data *pdata) +{ + u32 comp1 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_1); + u32 idx = COMP1_APB_DATA_WIDTH(comp1); + int ret; + + if (WARN_ON(idx >= ARRAY_SIZE(bus_widths))) + return -EINVAL; + + ret = dw_configure_dai(dev, dw_i2s_dai, pdata->snd_rates); + if (ret < 0) + return ret; + + /* Set DMA slaves info */ + dev->play_dma_data.pd.data = pdata->play_dma_data; + dev->capture_dma_data.pd.data = pdata->capture_dma_data; + dev->play_dma_data.pd.addr = res->start + I2S_TXDMA; + dev->capture_dma_data.pd.addr = res->start + I2S_RXDMA; + dev->play_dma_data.pd.max_burst = 16; + dev->capture_dma_data.pd.max_burst = 16; + dev->play_dma_data.pd.addr_width = bus_widths[idx]; + dev->capture_dma_data.pd.addr_width = bus_widths[idx]; + dev->play_dma_data.pd.filter = pdata->filter; + dev->capture_dma_data.pd.filter = pdata->filter; + + return 0; +} + +static int dw_configure_dai_by_dt(struct dw_i2s_dev *dev, + struct snd_soc_dai_driver *dw_i2s_dai, + struct resource *res) +{ + u32 comp1 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_1); + u32 comp2 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_2); + u32 fifo_depth = 1 << (1 + COMP1_FIFO_DEPTH_GLOBAL(comp1)); + u32 idx = COMP1_APB_DATA_WIDTH(comp1); + u32 idx2; + int ret; + + if (WARN_ON(idx >= ARRAY_SIZE(bus_widths))) + return -EINVAL; + + ret = dw_configure_dai(dev, dw_i2s_dai, SNDRV_PCM_RATE_8000_192000); + if (ret < 0) + return ret; + + if (COMP1_TX_ENABLED(comp1)) { + idx2 = COMP1_TX_WORDSIZE_0(comp1); + + dev->capability |= DWC_I2S_PLAY; + dev->play_dma_data.dt.addr = res->start + I2S_TXDMA; + dev->play_dma_data.dt.addr_width = bus_widths[idx]; + dev->play_dma_data.dt.chan_name = "TX"; + dev->play_dma_data.dt.fifo_size = fifo_depth * + (fifo_width[idx2]) >> 8; + dev->play_dma_data.dt.maxburst = 16; + } + if (COMP1_RX_ENABLED(comp1)) { + idx2 = COMP2_RX_WORDSIZE_0(comp2); + + dev->capability |= DWC_I2S_RECORD; + dev->capture_dma_data.dt.addr = res->start + I2S_RXDMA; + dev->capture_dma_data.dt.addr_width = bus_widths[idx]; + dev->capture_dma_data.dt.chan_name = "RX"; + dev->capture_dma_data.dt.fifo_size = fifo_depth * + (fifo_width[idx2] >> 8); + dev->capture_dma_data.dt.maxburst = 16; + } + + return 0; + } static int dw_i2s_probe(struct platform_device *pdev) @@ -378,11 +530,6 @@ static int dw_i2s_probe(struct platform_device *pdev) int ret; struct snd_soc_dai_driver *dw_i2s_dai; - if (!pdata) { - dev_err(&pdev->dev, "Invalid platform data\n"); - return -EINVAL; - } - dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) { dev_warn(&pdev->dev, "kzalloc fail\n"); @@ -403,32 +550,54 @@ static int dw_i2s_probe(struct platform_device *pdev) return PTR_ERR(dev->i2s_base); dev->dev = &pdev->dev; - dw_configure_dai_by_pd(dev, dw_i2s_dai, res, pdata); + if (pdata) { + ret = dw_configure_dai_by_pd(dev, dw_i2s_dai, res, pdata); + if (ret < 0) + return ret; + + dev->capability = pdata->cap; + dev->i2s_clk_cfg = pdata->i2s_clk_cfg; + if (!dev->i2s_clk_cfg) { + dev_err(&pdev->dev, "no clock configure method\n"); + return -ENODEV; + } - dev->capability = pdata->cap; - dev->i2s_clk_cfg = pdata->i2s_clk_cfg; - dev->clk = clk_get(&pdev->dev, NULL); + dev->clk = devm_clk_get(&pdev->dev, NULL); + } else { + ret = dw_configure_dai_by_dt(dev, dw_i2s_dai, res); + if (ret < 0) + return ret; + + dev->clk = devm_clk_get(&pdev->dev, "i2sclk"); + } if (IS_ERR(dev->clk)) - return PTR_ERR(dev->clk); + return PTR_ERR(dev->clk); - ret = clk_enable(dev->clk); + ret = clk_prepare_enable(dev->clk); if (ret < 0) - goto err_clk_put; + return ret; dev_set_drvdata(&pdev->dev, dev); - ret = snd_soc_register_component(&pdev->dev, &dw_i2s_component, + ret = devm_snd_soc_register_component(&pdev->dev, &dw_i2s_component, dw_i2s_dai, 1); if (ret != 0) { dev_err(&pdev->dev, "not able to register dai\n"); goto err_clk_disable; } + if (!pdata) { + ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); + if (ret) { + dev_err(&pdev->dev, + "Could not register PCM: %d\n", ret); + goto err_clk_disable; + } + } + return 0; err_clk_disable: - clk_disable(dev->clk); -err_clk_put: - clk_put(dev->clk); + clk_disable_unprepare(dev->clk); return ret; } @@ -436,18 +605,26 @@ static int dw_i2s_remove(struct platform_device *pdev) { struct dw_i2s_dev *dev = dev_get_drvdata(&pdev->dev); - snd_soc_unregister_component(&pdev->dev); - - clk_put(dev->clk); + clk_disable_unprepare(dev->clk); return 0; } +#ifdef CONFIG_OF +static const struct of_device_id dw_i2s_of_match[] = { + { .compatible = "snps,designware-i2s", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, dw_i2s_of_match); +#endif + static struct platform_driver dw_i2s_driver = { .probe = dw_i2s_probe, .remove = dw_i2s_remove, .driver = { .name = "designware-i2s", + .of_match_table = of_match_ptr(dw_i2s_of_match), }, }; diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index 026a801..c068494 100644 --- a/sound/soc/fsl/fsl_asrc.c +++ b/sound/soc/fsl/fsl_asrc.c @@ -818,7 +818,6 @@ static int fsl_asrc_probe(struct platform_device *pdev) return -ENOMEM; asrc_priv->pdev = pdev; - strncpy(asrc_priv->name, np->name, sizeof(asrc_priv->name) - 1); /* Get the addresses and IRQ */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -837,12 +836,12 @@ static int fsl_asrc_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(&pdev->dev, "no irq for node %s\n", np->full_name); + dev_err(&pdev->dev, "no irq for node %s\n", pdev->name); return irq; } ret = devm_request_irq(&pdev->dev, irq, fsl_asrc_isr, 0, - asrc_priv->name, asrc_priv); + dev_name(&pdev->dev), asrc_priv); if (ret) { dev_err(&pdev->dev, "failed to claim irq %u: %d\n", irq, ret); return ret; diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h index a3f211f..4aed63c 100644 --- a/sound/soc/fsl/fsl_asrc.h +++ b/sound/soc/fsl/fsl_asrc.h @@ -433,7 +433,6 @@ struct fsl_asrc_pair { * @channel_avail: non-occupied channel numbers * @asrc_rate: default sample rate for ASoC Back-Ends * @asrc_width: default sample width for ASoC Back-Ends - * @name: driver name */ struct fsl_asrc { struct snd_dmaengine_dai_dma_data dma_params_rx; @@ -452,8 +451,6 @@ struct fsl_asrc { int asrc_rate; int asrc_width; - - char name[32]; }; extern struct snd_soc_platform_driver fsl_asrc_platform; diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c index 1c08ab1..5c75971 100644 --- a/sound/soc/fsl/fsl_esai.c +++ b/sound/soc/fsl/fsl_esai.c @@ -774,7 +774,7 @@ static int fsl_esai_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(&pdev->dev, "no irq for node %s\n", np->full_name); + dev_err(&pdev->dev, "no irq for node %s\n", pdev->name); return irq; } diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index 032d2d3..ec79c3d 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -612,7 +612,7 @@ static int fsl_sai_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(&pdev->dev, "no irq for node %s\n", np->full_name); + dev_err(&pdev->dev, "no irq for node %s\n", pdev->name); return irq; } diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index af042942..735e2ee 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -1198,7 +1198,7 @@ static int fsl_spdif_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(&pdev->dev, "no irq for node %s\n", np->full_name); + dev_err(&pdev->dev, "no irq for node %s\n", pdev->name); return irq; } diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 059496e..65400be 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -1362,8 +1362,8 @@ static int fsl_ssi_probe(struct platform_device *pdev) } ssi_private->irq = platform_get_irq(pdev, 0); - if (ssi_private->irq < 0) { - dev_err(&pdev->dev, "no irq for node %s\n", np->full_name); + if (!ssi_private->irq) { + dev_err(&pdev->dev, "no irq for node %s\n", pdev->name); return ssi_private->irq; } diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index 8869971..d49f25f 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -820,12 +820,9 @@ static int fsi_clk_enable(struct device *dev, return ret; } - if (clock->xck) - clk_enable(clock->xck); - if (clock->ick) - clk_enable(clock->ick); - if (clock->div) - clk_enable(clock->div); + clk_enable(clock->xck); + clk_enable(clock->ick); + clk_enable(clock->div); clock->count++; } diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c index 057e5ef..a57921e 100644 --- a/sound/soc/soc-devres.c +++ b/sound/soc/soc-devres.c @@ -60,7 +60,7 @@ static void devm_platform_release(struct device *dev, void *res) /** * devm_snd_soc_register_platform - resource managed platform registration * @dev: Device used to manage platform - * @platform: platform to register + * @platform_drv: platform to register * * Register a platform driver with automatic unregistration when the device is * unregistered. |
