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dmaengine: at_xdmac: Fix at_xdmac_lld struct definition

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commit 912f7c6f7fac273f40e621447cf17d14b50d6e5b upstream.

The hardware channel next descriptor view structure contains just
fields of 32 bits, while dma_addr_t can be of type u64 or u32
depending on CONFIG_ARCH_DMA_ADDR_T_64BIT. Force u32 to comply with
what the hardware expects.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-11-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tudor Ambarus 2021-12-15 13:01:13 +02:00 committed by Greg Kroah-Hartman
parent e017222774
commit 05d22b2f83
1 changed files with 9 additions and 9 deletions
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18
drivers/dma/at_xdmac.c
View File

@ -232,15 +232,15 @@ struct at_xdmac {
/* Linked List Descriptor */
struct at_xdmac_lld {
dma_addr_t mbr_nda; /* Next Descriptor Member */
u32 mbr_ubc; /* Microblock Control Member */
dma_addr_t mbr_sa; /* Source Address Member */
dma_addr_t mbr_da; /* Destination Address Member */
u32 mbr_cfg; /* Configuration Register */
u32 mbr_bc; /* Block Control Register */
u32 mbr_ds; /* Data Stride Register */
u32 mbr_sus; /* Source Microblock Stride Register */
u32 mbr_dus; /* Destination Microblock Stride Register */
u32 mbr_nda; /* Next Descriptor Member */
u32 mbr_ubc; /* Microblock Control Member */
u32 mbr_sa; /* Source Address Member */
u32 mbr_da; /* Destination Address Member */
u32 mbr_cfg; /* Configuration Register */
u32 mbr_bc; /* Block Control Register */
u32 mbr_ds; /* Data Stride Register */
u32 mbr_sus; /* Source Microblock Stride Register */
u32 mbr_dus; /* Destination Microblock Stride Register */
};
/* 64-bit alignment needed to update CNDA and CUBC registers in an atomic way. */