Commit 37fe4605 authored by Serge Semin's avatar Serge Semin Committed by Lorenzo Pieralisi
Browse files

dmaengine: Fix dma_slave_config.dst_addr description 

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: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: default avatarSerge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: default avatarLorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: default avatarVinod Koul <vkoul@kernel.org>
parent 1b929c02

include/linux/dmaengine.h

+1 −1
Original line number Diff line number Diff line
@@ -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