From 36e8d3b133e16eb2aee8a53b9ed5cd34821f6123 Mon Sep 17 00:00:00 2001 From: Robin Gong Date: Wed, 20 Jun 2018 00:57:02 +0800 Subject: dmaengine: imx-sdma: remove the maximum limitation for bd numbers No this limitation now after virtual dma used since bd is allocated dynamically instead of static. Signed-off-by: Robin Gong Reviewed-by: Sascha Hauer Tested-by: Lucas Stach Signed-off-by: Vinod Koul --- drivers/dma/imx-sdma.c | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'drivers/dma/imx-sdma.c') diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index d1d3494eba01..9f1a4621fd9a 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -285,7 +285,6 @@ struct sdma_context_data { u32 scratch7; } __attribute__ ((packed)); -#define NUM_BD (int)(PAGE_SIZE / sizeof(struct sdma_buffer_descriptor)) struct sdma_engine; @@ -1290,13 +1289,6 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( if (ret) goto err_bd_out; - if (sg_len > NUM_BD) { - dev_err(sdma->dev, "SDMA channel %d: maximum number of sg exceeded: %d > %d\n", - channel, sg_len, NUM_BD); - ret = -EINVAL; - goto err_bd_out; - } - desc->chn_count = 0; for_each_sg(sgl, sg, sg_len, i) { struct sdma_buffer_descriptor *bd = &desc->bd[i]; @@ -1406,12 +1398,6 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic( if (ret) goto err_bd_out; - if (num_periods > NUM_BD) { - dev_err(sdma->dev, "SDMA channel %d: maximum number of sg exceeded: %d > %d\n", - channel, num_periods, NUM_BD); - goto err_bd_out; - } - if (period_len > 0xffff) { dev_err(sdma->dev, "SDMA channel %d: maximum period size exceeded: %zu > %d\n", channel, period_len, 0xffff); -- cgit v1.2.3