From 35397edeb14f033e51296400ff31d159dbb8444a Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 4 Aug 2016 12:22:32 +0200 Subject: ASoC: dwc: Drop DMA channel names assignment The dw_configure_dai_by_dt() function and further dev->{play,capture} _dma_data.dt data structures seem to be used in this driver only in case of a system using devicetree, thus chan_name assignments have no effect since they will be ignored in dmaengine_pcm_request_chan_of() call and will be substituted with values taken form dmaengine_pcm_dma_channel_names[] table ("tx", "rx"). Also there is no any "TX", "RX" dma-names entries in arch/arm/boot/dts, only lower case "tx", "rx" seem to be used. Lastly, this driver doesn't set SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME flag when registering a dmaengine PCM to indicate the chan_name should be used. My intention is to eventually remove the struct snd_dmaengine_dai_dma_data chan_name field as there is also a chan_names[] field in struct snd_dmaengine_pcm_config which can be used for same purpose. Signed-off-by: Sylwester Nawrocki Signed-off-by: Mark Brown --- sound/soc/dwc/designware_i2s.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'sound/soc/dwc') diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c index dc97f4349e66..2998954a1c74 100644 --- a/sound/soc/dwc/designware_i2s.c +++ b/sound/soc/dwc/designware_i2s.c @@ -577,7 +577,6 @@ static int dw_configure_dai_by_dt(struct dw_i2s_dev *dev, 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; @@ -588,7 +587,6 @@ static int dw_configure_dai_by_dt(struct dw_i2s_dev *dev, 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; -- cgit v1.2.3