]> git.itanic.dy.fi Git - linux-stable/commit
dmaengine: dw-edma: Fix missing src/dst address of interleaved xfers
authorSerge Semin <Sergey.Semin@baikalelectronics.ru>
Fri, 13 Jan 2023 17:13:46 +0000 (20:13 +0300)
committerLorenzo Pieralisi <lpieralisi@kernel.org>
Fri, 27 Jan 2023 16:15:33 +0000 (17:15 +0100)
commit13b6299cf66165a442089fa895a7f70250703584
tree376e9d72ac77da27d6fb6196c0722bf7a5ba615c
parent002bbaa2f60e07d465f92a163365569481d34108
dmaengine: dw-edma: Fix missing src/dst address of interleaved xfers

Interleaved DMA transfer support was added by 85e7518f42c8 ("dmaengine:
dw-edma: Add device_prep_interleave_dma() support"), but depending on the
selected channel, either source or destination address are left
uninitialized which was obviously wrong.

Initialize the destination address of the eDMA burst descriptors for
DEV_TO_MEM interleaved operations and the source address for MEM_TO_DEV
operations.

Link: https://lore.kernel.org/r/20230113171409.30470-5-Sergey.Semin@baikalelectronics.ru
Fixes: 85e7518f42c8 ("dmaengine: dw-edma: Add device_prep_interleave_dma() support")
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>
drivers/dma/dw-edma/dw-edma-core.c