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dmaengine: Fix dma_slave_config.dst_addr description

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The dst_addr member of the dma_slave_config structure has been mistakenly
marked as ignored if the *source* address belongs to the memory. That is
relevant to the src_addr field of the structure, while the dst_addr field
contains a destination device address that should be ignored if the
destination is the CPU memory.

Correct the @dst_addr description accordingly.

Link: https://lore.kernel.org/r/20230113171409.30470-2-Sergey.Semin@baikalelectronics.ru
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Serge Semin 2023-01-13 20:13:43 +03:00 committed by Lorenzo Pieralisi
parent 1b929c02af
commit 37fe46051d
1 changed files with 1 additions and 1 deletions
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2
include/linux/dmaengine.h
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@ -394,7 +394,7 @@ enum dma_slave_buswidth {
* should be read (RX), if the source is memory this argument is
* ignored.
* @dst_addr: this is the physical address where DMA slave data
* should be written (TX), if the source is memory this argument
* should be written (TX), if the destination is memory this argument
* is ignored.
* @src_addr_width: this is the width in bytes of the source (RX)
* register where DMA data shall be read. If the source