This patch series aims to add enhancement to RZ/G2L DMAC driver.
It is basically for supporting SCIF DMA.
It is based on a patch in the BSP by Long Luu which is similar to
rcar-dmac implementation.
v2->v3:
* Updated commit description for patch#4 and patch#5.
* Assign header after chcfg to make sure there is no code flow change.
v1->v2:
* Updated commit description for patch#{1,2,3}
* Introduced rz_dmac_invalidate_lmdesc(), so that same code is shared
between rz_dmac_free_chan_resources() and rz_dmac_terminate_all()
for invalidating hardware descriptors.
* Replaced the loop for->for_each_sg and dropped sgl and sg_len variables
from calculate_total_bytes_in_vd().
* Added resume callback().
* Added patch#4 trivial code clean-ups for rz_dmac_lmdesc_recycle() and
rz_dmac_prep_slave_sg().
* Added patch#5 for rz_dmac_prepare_descs_for_slave_sg() improvements.
Biju Das (5):
dmaengine: sh: rz-dmac: Add rz_dmac_invalidate_lmdesc()
dmaengine: sh: rz-dmac: Add device_tx_status() callback
dmaengine: sh: rz-dmac: Add device_{pause,resume}() callbacks
dmaengine: sh: rz-dmac: Trivial code clean-ups
dmaengine: sh: rz-dmac: rz_dmac_prepare_descs_for_slave_sg()
improvements
drivers/dma/sh/rz-dmac.c | 246 +++++++++++++++++++++++++++++++++++----
1 file changed, 222 insertions(+), 24 deletions(-)
--
2.25.1
