5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Peter Ujfalusi <peter.ujfalusi@xxxxxx> [ Upstream commit db8793a39b293d5a8983e1713a70a76cb039c2fe ] The legacy dma_request (which was holding the DMA request number) is no longer in use for a long time. All legacy platforms has been converted to dma_slave_map. Remove it along with the DT parsing to get tx_dma_channel and rx_dma_channel. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx> Link: https://lore.kernel.org/r/20201106072551.689-3-peter.ujfalusi@xxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Stable-dep-of: d18ca8635db2 ("ASoC: ti: davinci-mcasp: Fix race condition during probe") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- sound/soc/ti/davinci-mcasp.c | 57 ++---------------------------------- 1 file changed, 3 insertions(+), 54 deletions(-) diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c index 7860382a17a28..e2e272d653480 100644 --- a/sound/soc/ti/davinci-mcasp.c +++ b/sound/soc/ti/davinci-mcasp.c @@ -93,7 +93,6 @@ struct davinci_mcasp { u8 bclk_div; int streams; u32 irq_request[2]; - int dma_request[2]; int sysclk_freq; bool bclk_master; @@ -1730,7 +1729,6 @@ static struct davinci_mcasp_pdata *davinci_mcasp_set_pdata_from_of( struct davinci_mcasp_pdata *pdata = NULL; const struct of_device_id *match = of_match_device(mcasp_dt_ids, &pdev->dev); - struct of_phandle_args dma_spec; const u32 *of_serial_dir32; u32 val; @@ -1785,31 +1783,6 @@ static struct davinci_mcasp_pdata *davinci_mcasp_set_pdata_from_of( pdata->serial_dir = of_serial_dir; } - ret = of_property_match_string(np, "dma-names", "tx"); - if (ret < 0) - goto nodata; - - ret = of_parse_phandle_with_args(np, "dmas", "#dma-cells", ret, - &dma_spec); - if (ret < 0) - goto nodata; - - pdata->tx_dma_channel = dma_spec.args[0]; - - /* RX is not valid in DIT mode */ - if (pdata->op_mode != DAVINCI_MCASP_DIT_MODE) { - ret = of_property_match_string(np, "dma-names", "rx"); - if (ret < 0) - goto nodata; - - ret = of_parse_phandle_with_args(np, "dmas", "#dma-cells", ret, - &dma_spec); - if (ret < 0) - goto nodata; - - pdata->rx_dma_channel = dma_spec.args[0]; - } - ret = of_property_read_u32(np, "tx-num-evt", &val); if (ret >= 0) pdata->txnumevt = val; @@ -2099,11 +2072,10 @@ static void davinci_mcasp_get_dt_params(struct davinci_mcasp *mcasp) static int davinci_mcasp_probe(struct platform_device *pdev) { struct snd_dmaengine_dai_dma_data *dma_data; - struct resource *mem, *res, *dat; + struct resource *mem, *dat; struct davinci_mcasp_pdata *pdata; struct davinci_mcasp *mcasp; char *irq_name; - int *dma; int irq; int ret; @@ -2238,45 +2210,22 @@ static int davinci_mcasp_probe(struct platform_device *pdev) mcasp->dat_port = true; dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK]; + dma_data->filter_data = "tx"; if (dat) dma_data->addr = dat->start; else dma_data->addr = mem->start + davinci_mcasp_txdma_offset(pdata); - dma = &mcasp->dma_request[SNDRV_PCM_STREAM_PLAYBACK]; - res = platform_get_resource(pdev, IORESOURCE_DMA, 0); - if (res) - *dma = res->start; - else - *dma = pdata->tx_dma_channel; - - /* dmaengine filter data for DT and non-DT boot */ - if (pdev->dev.of_node) - dma_data->filter_data = "tx"; - else - dma_data->filter_data = dma; /* RX is not valid in DIT mode */ if (mcasp->op_mode != DAVINCI_MCASP_DIT_MODE) { dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE]; + dma_data->filter_data = "rx"; if (dat) dma_data->addr = dat->start; else dma_data->addr = mem->start + davinci_mcasp_rxdma_offset(pdata); - - dma = &mcasp->dma_request[SNDRV_PCM_STREAM_CAPTURE]; - res = platform_get_resource(pdev, IORESOURCE_DMA, 1); - if (res) - *dma = res->start; - else - *dma = pdata->rx_dma_channel; - - /* dmaengine filter data for DT and non-DT boot */ - if (pdev->dev.of_node) - dma_data->filter_data = "rx"; - else - dma_data->filter_data = dma; } if (mcasp->version < MCASP_VERSION_3) { -- 2.43.0
