Robin Gong 809b1b04df spi: introduce fallback to pio ...

Add fallback to pio mode in case dma transfer failed with error status
SPI_TRANS_FAIL_NO_START.
If spi client driver want to enable this feature please set xfer->error in
the proper place such as dmaengine_prep_slave_sg() failure detect(but no
any data put into spi bus yet). Besides, add master->fallback checking in
its can_dma() so that spi core could switch to pio next time. Please refer
to spi-imx.c.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Link: https://lore.kernel.org/r/1592347329-28363-2-git-send-email-yibin.gong@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

2020-06-23 13:38:14 +01:00

..

acpi

Merge branch 'acpica'

2020-06-10 17:27:28 +02:00

asm-generic

Merge tag 'x86-entry-2020-06-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-06-13 10:05:47 -07:00

clocksource

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crypto

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drm

drm: remove drm specific kmap_atomic code

2020-06-04 19:06:22 -07:00

dt-bindings

Merge tag 'mailbox-v5.8' of git://git.linaro.org/landing-teams/working/fujitsu/integration

2020-06-11 12:42:14 -07:00

keys

keys: Implement update for the big_key type

2020-06-02 17:22:31 +01:00

kunit

Documentation: test.h - fix warnings

2020-05-22 14:33:59 -06:00

kvm

KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu

2020-05-28 11:57:10 +01:00

linux

spi: introduce fallback to pio

2020-06-23 13:38:14 +01:00

math-emu

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media

Merge tag 'media/v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2020-06-13 13:09:38 -07:00

misc

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net

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-06-13 16:27:13 -07:00

pcmcia

pcmcia: Replace zero-length array with flexible-array

2020-05-18 10:28:31 +02:00

ras

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rdma

dynamic_debug: add an option to enable dynamic debug for modules only

2020-06-08 11:05:56 -07:00

scsi

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2020-06-05 15:11:50 -07:00

soc

Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

2020-06-06 11:01:58 -07:00

sound

Merge tag 'asoc-v5.8' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

2020-06-01 20:26:07 +02:00

target

scsi: target: Rename target_setup_cmd_from_cdb() to target_cmd_parse_cdb()

2020-06-09 21:57:26 -04:00

trace

Merge tag 'block-5.8-2020-06-11' of git://git.kernel.dk/linux-block

2020-06-11 16:07:33 -07:00

uapi

Merge existing fixes from spi/for-5.8

2020-06-15 16:16:05 +01:00

vdso

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video

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xen

xen: Move xen_setup_callback_vector() definition to include/xen/hvm.h

2020-06-11 15:15:19 +02:00