Commit 73adc614 authored by Tudor Ambarus's avatar Tudor Ambarus Committed by sanglipeng
Browse files

dmaengine: at_hdmac: Fix at_lli struct definition 

stable inclusion
from stable-v5.10.155
commit 4b51cce72ab7d173fd511917396c832b912b7634
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7M5F4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4b51cce72ab7d173fd511917396c832b912b7634



--------------------------------

commit f1171bbd upstream.

Those hardware registers are all of 32 bits, while dma_addr_t ca be of
type u64 or u32 depending on CONFIG_ARCH_DMA_ADDR_T_64BIT. Force u32 to
comply with what the hardware expects.

Fixes: dc78baa2 ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Signed-off-by: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Acked-by: default avatarNicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-2-tudor.ambarus@microchip.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 171860c9

drivers/dma/at_hdmac_regs.h

+5 −5
Original line number Diff line number Diff line
@@ -164,13 +164,13 @@ 
/* LLI == Linked List Item; aka DMA buffer descriptor */

struct at_lli {

	/* values that are not changed by hardware */

	dma_addr_t	saddr;

	dma_addr_t	daddr;

	u32 saddr;

	u32 daddr;

	/* value that may get written back: */

	u32 ctrla;

	/* more values that are not changed by hardware */

	u32 ctrlb;

	dma_addr_t	dscr;	/* chain to next lli */

	u32 dscr;	/* chain to next lli */

};



/**