Hi,
Series adds tx_status and pause/resume support for the rz-dmac driver.
Along with it were added fixes and improvements identified while working
on the above mentioned enhancements.
Previous versions were addressed by Biju. The previous versions were
posted here:
v4: https://lore.kernel.org/all/20240628151728.84470-1-biju.das.jz@bp.renesas.com/
v3: https://lore.kernel.org/all/20230412152445.117439-1-biju.das.jz@bp.renesas.com/
v2: https://lore.kernel.org/all/20230405140842.201883-1-biju.das.jz@bp.renesas.com/
v1: https://lore.kernel.org/all/20230324094957.115071-1-biju.das.jz@bp.renesas.com/
Changes in v10:
- dropped patch "dmaengine: sh: rz-dmac: Add rz_dmac_invalidate_lmdesc()"
and use the already available rz_lmdesc_setup() function as suggested
by John internally
- rebased on top of latest next
Changes in v9:
- collected tags
- in patch 7/8 droppped contributions from the SoB list, used
Co-developed-by tag, and added Long Luu as well; also used
ctra as member of rz_dmac_calculate_residue_bytes_in_vd() to
avoid re-reading it again in rz_dmac_calculate_residue_bytes_in_vd()
- adjusted the patch description for patches 7/8, 8/8
Changes in v8:
- rebased on top of https://lore.kernel.org/all/20260105114445.878262-1-cosmin-gabriel.tanislav.xa@renesas.com/
- populated engine->residue_granularity in patch 7/8
- report proper residue in case the channel is paused in patch 8/8
Changes in v7:
- adjusted the pause/resume support
- collected tags
Changes in v6:
- added patches:
-- dmaengine: sh: rz-dmac: Drop read of CHCTRL register
-- dmaengine: sh: rz-dmac: Drop goto instruction and label
- use vc lock in IRQ handler only for the error path
- fixed typos
- adjusted patch
"dmaengine: sh: rz-dmac: Add device_{pause,resume}() callbacks"
Changes in v5:
- added patches
-- dmaengine: sh: rz-dmac: Add rz_dmac_invalidate_lmdesc()
-- dmaengine: sh: rz-dmac: Protect the driver specific lists
-- dmaengine: sh: rz-dmac: Move all CHCTRL updates under spinlock
-- dmaengine: sh: rz-dmac: Drop unnecessary local_irq_save() call
-- dmaengine: sh: rz-dmac: Add device_{pause,resume}() callbacks
-- dmaengine: sh: rz-dmac: Add rz_dmac_invalidate_lmdesc()
- for pause/resume used the DMA controller support to pause/resume
transfers compared with previous versions
- adjusted patches:
-- dmaengine: sh: rz-dmac: Add device_tx_status() callback
Thank you,
Claudiu
Biju Das (1):
dmaengine: sh: rz-dmac: Add device_tx_status() callback
Claudiu Beznea (6):
dmaengine: sh: rz-dmac: Protect the driver specific lists
dmaengine: sh: rz-dmac: Move CHCTRL updates under spinlock
dmaengine: sh: rz-dmac: Drop read of CHCTRL register
dmaengine: sh: rz-dmac: Drop goto instruction and label
dmaengine: sh: rz-dmac: Drop unnecessary local_irq_save() call
dmaengine: sh: rz-dmac: Add device_{pause,resume}() callbacks
John Madieu (1):
dmaengine: sh: rz-dmac: Use rz_lmdesc_setup() to invalidate
descriptors
drivers/dma/sh/rz-dmac.c | 281 ++++++++++++++++++++++++++++++++-------
1 file changed, 231 insertions(+), 50 deletions(-)
--
2.43.0