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linux/drivers/dma/sh
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Biju Das 747213b08a dmaengine: sh: rz-dmac: Fix rz_dmac_terminate_all() 
After audio full duplex testing, playing the recorded file contains a few
playback frames from the previous time. The rz_dmac_terminate_all() does
not reset all the hardware descriptors queued previously, leading to the
wrong descriptor being picked up during the next DMA transfer. Fix the
above issue by resetting all the descriptor headers for a channel in
rz_dmac_terminate_all() as rz_dmac_lmdesc_recycle() points to the proper
descriptor header filled by the rz_dmac_prepare_descs_for_slave_sg().

Cc: stable@kernel.org
Fixes: 5000d37042 ("dmaengine: sh: Add DMAC driver for RZ/G2L SoC")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Tested-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://patch.msgid.link/20251113195052.564338-1-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
History 2025-12-16 21:39:17 +05:30
..
Kconfig dmaengine: sh: Kconfig: Drop ARCH_R7S72100/ARCH_RZG2L dependency 2025-10-16 17:42:59 +05:30
Makefile dmaengine: sh: Add DMAC driver for RZ/G2L SoC 2021-08-29 19:14:19 +05:30
rcar-dmac.c dmaengine: rcar-dmac: Convert to NOIRQ_SYSTEM_SLEEP/RUNTIME_PM_OPS() 2025-10-16 17:42:01 +05:30
rz-dmac.c dmaengine: sh: rz-dmac: Fix rz_dmac_terminate_all() 2025-12-16 21:39:17 +05:30
shdma-base.c dmaengine: sh: setup_xref error handling 2025-09-02 12:29:36 +05:30
shdma.h dmaengine: shdma: increase size of 'dev_id' 2024-01-19 18:12:10 +05:30
shdmac.c dmaengine: sh: setup_xref error handling 2025-09-02 12:29:36 +05:30
usb-dmac.c dmaengine: sh: usb-dmac: Convert to NOIRQ_SYSTEM_SLEEP/RUNTIME_PM_OPS() 2025-10-16 17:41:45 +05:30