diff options
| author | Robin Gong <yibin.gong@nxp.com> | 2018-07-24 01:46:10 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2018-07-30 10:33:58 +0530 |
| commit | 4a6b2e8a9a0216697405560f3a14b5f33812f444 (patch) | |
| tree | 61630a36121c5ee8bd16fb3de7065f4a3f923d64 /drivers/dma | |
| parent | 24ca312dd66329b126230b6f5826f45a61ebb5a8 (diff) | |
| download | linux-4a6b2e8a9a0216697405560f3a14b5f33812f444.tar.bz2 | |
dmaengine: imx-sdma: add SDMA_BD_MAX_CNT to replace '0xffff'
Add macro SDMA_BD_MAX_CNT to replace '0xffff'.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/imx-sdma.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 3b622d660c8b..e3d5e73a97c7 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -185,6 +185,7 @@ * Mode/Count of data node descriptors - IPCv2 */ struct sdma_mode_count { +#define SDMA_BD_MAX_CNT 0xffff u32 count : 16; /* size of the buffer pointed by this BD */ u32 status : 8; /* E,R,I,C,W,D status bits stored here */ u32 command : 8; /* command mostly used for channel 0 */ @@ -1344,9 +1345,9 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( count = sg_dma_len(sg); - if (count > 0xffff) { + if (count > SDMA_BD_MAX_CNT) { dev_err(sdma->dev, "SDMA channel %d: maximum bytes for sg entry exceeded: %d > %d\n", - channel, count, 0xffff); + channel, count, SDMA_BD_MAX_CNT); goto err_bd_out; } @@ -1421,9 +1422,9 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic( sdmac->flags |= IMX_DMA_SG_LOOP; - if (period_len > 0xffff) { + if (period_len > SDMA_BD_MAX_CNT) { dev_err(sdma->dev, "SDMA channel %d: maximum period size exceeded: %zu > %d\n", - channel, period_len, 0xffff); + channel, period_len, SDMA_BD_MAX_CNT); goto err_bd_out; } @@ -1970,7 +1971,7 @@ static int sdma_probe(struct platform_device *pdev) sdma->dma_device.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; sdma->dma_device.device_issue_pending = sdma_issue_pending; sdma->dma_device.dev->dma_parms = &sdma->dma_parms; - dma_set_max_seg_size(sdma->dma_device.dev, 65535); + dma_set_max_seg_size(sdma->dma_device.dev, SDMA_BD_MAX_CNT); platform_set_drvdata(pdev, sdma); |