From: Arnd Bergmann arnd@arndb.de
ux500_pcm_request_chan() is never called because the dma channels are already set up from DT. Remove this, along with the ux500_msp_dma_params structure.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- sound/soc/ux500/ux500_msp_dai.c | 4 +-- sound/soc/ux500/ux500_msp_i2s.c | 41 +------------------------------ sound/soc/ux500/ux500_msp_i2s.h | 9 +------ sound/soc/ux500/ux500_pcm.c | 43 +-------------------------------- 4 files changed, 5 insertions(+), 92 deletions(-)
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c index 6e86efd06ec1..6fb1a5c207bc 100644 --- a/sound/soc/ux500/ux500_msp_dai.c +++ b/sound/soc/ux500/ux500_msp_dai.c @@ -670,8 +670,8 @@ static int ux500_msp_dai_of_probe(struct snd_soc_dai *dai) 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->addr = drvdata->msp->tx_rx_addr; + capture_dma_data->addr = drvdata->msp->tx_rx_addr;
playback_dma_data->maxburst = 4; capture_dma_data->maxburst = 4; diff --git a/sound/soc/ux500/ux500_msp_i2s.c b/sound/soc/ux500/ux500_msp_i2s.c index bfca5553381f..fbfeefa418ca 100644 --- a/sound/soc/ux500/ux500_msp_i2s.c +++ b/sound/soc/ux500/ux500_msp_i2s.c @@ -360,20 +360,6 @@ static int enable_msp(struct ux500_msp *msp, struct ux500_msp_config *config) __func__, status); }
- /* Make sure the correct DMA-directions are configured */ - if ((config->direction & MSP_DIR_RX) && - !msp->capture_dma_data.dma_cfg) { - dev_err(msp->dev, "%s: ERROR: MSP RX-mode is not configured!", - __func__); - return -EINVAL; - } - if ((config->direction == MSP_DIR_TX) && - !msp->playback_dma_data.dma_cfg) { - dev_err(msp->dev, "%s: ERROR: MSP TX-mode is not configured!", - __func__); - return -EINVAL; - } - reg_val_DMACR = readl(msp->registers + MSP_DMACR); if (config->direction & MSP_DIR_RX) reg_val_DMACR |= RX_DMA_ENABLE; @@ -638,40 +624,17 @@ int ux500_msp_i2s_close(struct ux500_msp *msp, unsigned int dir)
}
-static int ux500_msp_i2s_of_init_msp(struct platform_device *pdev, - struct ux500_msp *msp); -{ - msp->playback_dma_data.dma_cfg = devm_kzalloc(&pdev->dev, - sizeof(struct stedma40_chan_cfg), - GFP_KERNEL); - if (!msp->playback_dma_data.dma_cfg) - return -ENOMEM; - - msp->capture_dma_data.dma_cfg = devm_kzalloc(&pdev->dev, - sizeof(struct stedma40_chan_cfg), - GFP_KERNEL); - if (!msp->capture_dma_data.dma_cfg) - return -ENOMEM; - - return 0; -} - int ux500_msp_i2s_init_msp(struct platform_device *pdev, struct ux500_msp **msp_p) { struct resource *res = NULL; struct ux500_msp *msp; - int ret;
*msp_p = devm_kzalloc(&pdev->dev, sizeof(struct ux500_msp), GFP_KERNEL); msp = *msp_p; if (!msp) return -ENOMEM;
- ret = ux500_msp_i2s_of_init_msp(pdev, msp); - if (ret) - return ret; - msp->dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -681,9 +644,7 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, return -ENOMEM; }
- msp->playback_dma_data.tx_rx_addr = res->start + MSP_DR; - msp->capture_dma_data.tx_rx_addr = res->start + MSP_DR; - + msp->tx_rx_addr = res->start + MSP_DR; msp->registers = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (msp->registers == NULL) { diff --git a/sound/soc/ux500/ux500_msp_i2s.h b/sound/soc/ux500/ux500_msp_i2s.h index 6b353423b75a..69d4ebc409fc 100644 --- a/sound/soc/ux500/ux500_msp_i2s.h +++ b/sound/soc/ux500/ux500_msp_i2s.h @@ -462,18 +462,11 @@ struct ux500_msp_config { unsigned int iodelay; };
-struct ux500_msp_dma_params { - unsigned int data_size; - dma_addr_t tx_rx_addr; - struct stedma40_chan_cfg *dma_cfg; -}; - struct ux500_msp { int id; void __iomem *registers; struct device *dev; - struct ux500_msp_dma_params playback_dma_data; - struct ux500_msp_dma_params capture_dma_data; + dma_addr_t tx_rx_addr; enum msp_state msp_state; int def_elem_len; unsigned int dir_busy; diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c index ca87517d80c9..53b5649cfdda 100644 --- a/sound/soc/ux500/ux500_pcm.c +++ b/sound/soc/ux500/ux500_pcm.c @@ -13,7 +13,6 @@ #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/slab.h> -#include <linux/platform_data/dma-ste-dma40.h>
#include <sound/pcm.h> #include <sound/pcm_params.h> @@ -29,44 +28,6 @@ #define UX500_PLATFORM_PERIODS_MAX 48 #define UX500_PLATFORM_BUFFER_BYTES_MAX (2048 * PAGE_SIZE)
-static struct dma_chan *ux500_pcm_request_chan(struct snd_soc_pcm_runtime *rtd, - struct snd_pcm_substream *substream) -{ - struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0); - u16 per_data_width, mem_data_width; - struct stedma40_chan_cfg *dma_cfg; - struct ux500_msp_dma_params *dma_params; - - dma_params = snd_soc_dai_get_dma_data(dai, substream); - dma_cfg = dma_params->dma_cfg; - - mem_data_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - - switch (dma_params->data_size) { - case 32: - per_data_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - break; - case 16: - per_data_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - break; - case 8: - per_data_width = DMA_SLAVE_BUSWIDTH_1_BYTE; - break; - default: - per_data_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - } - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - dma_cfg->src_info.data_width = mem_data_width; - dma_cfg->dst_info.data_width = per_data_width; - } else { - dma_cfg->src_info.data_width = per_data_width; - dma_cfg->dst_info.data_width = mem_data_width; - } - - return snd_dmaengine_pcm_request_channel(stedma40_filter, dma_cfg); -} - static int ux500_pcm_prepare_slave_config(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config) @@ -98,7 +59,6 @@ static int ux500_pcm_prepare_slave_config(struct snd_pcm_substream *substream, }
static const struct snd_dmaengine_pcm_config ux500_dmaengine_of_pcm_config = { - .compat_request_channel = ux500_pcm_request_chan, .prepare_slave_config = ux500_pcm_prepare_slave_config, };
@@ -107,8 +67,7 @@ int ux500_pcm_register_platform(struct platform_device *pdev) int ret;
ret = snd_dmaengine_pcm_register(&pdev->dev, - &ux500_dmaengine_of_pcm_config, - SND_DMAENGINE_PCM_FLAG_COMPAT); + &ux500_dmaengine_of_pcm_config, 0); if (ret < 0) { dev_err(&pdev->dev, "%s: ERROR: Failed to register platform '%s' (%d)!\n",