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drivers: dma_mcux_edma: correct valid values for dma channel/slot

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The dma-channels devicetree value - 1 = maximum valid channel
The dma-requests devicetree value - 1 = maximum valid request

Signed-off-by: Dat Nguyen Duy <dat.nguyenduy@nxp.com>
This commit is contained in:
Dat Nguyen Duy 2023-06-18 23:25:31 +07:00 • committed by David Leach
commit ad08d71efa
1 changed files with 3 additions and 3 deletions
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6
drivers/dma/dma_mcux_edma.c
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@ -192,12 +192,12 @@ static int dma_mcux_edma_configure(const struct device *dev, uint32_t channel,
unsigned int key; unsigned int key;
int ret = 0; int ret = 0;
if (slot > DT_INST_PROP(0, dma_requests)) { if (slot >= DT_INST_PROP(0, dma_requests)) {
LOG_ERR("source number is outof scope %d", slot); LOG_ERR("source number is out of scope %d", slot);
return -ENOTSUP; return -ENOTSUP;
} }
if (channel > DT_INST_PROP(0, dma_channels)) { if (channel >= DT_INST_PROP(0, dma_channels)) {
LOG_ERR("out of DMA channel %d", channel); LOG_ERR("out of DMA channel %d", channel);
return -EINVAL; return -EINVAL;
} }