iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/drivers/dma
History
Tony Lindgren bacdcb6675 dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle 
Yegor Yefremov <yegorslists@googlemail.com> reported that musb and ftdi
uart can fail for the first open of the uart unless connected using
a hub.

This is because the first dma call done by musb_ep_program() must wait
if cppi41 is PM runtime suspended. Otherwise musb_ep_program() continues
with other non-dma packets before the DMA transfer is started causing at
least ftdi uarts to fail to receive data.

Let's fix the issue by waking up cppi41 with PM runtime calls added to
cppi41_dma_prep_slave_sg() and return NULL if still idled. This way we
have musb_ep_program() continue with PIO until cppi41 is awake.

Fixes: fdea2d09b997 ("dmaengine: cppi41: Add basic PM runtime support")
Reported-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Cc: stable@vger.kernel.org # v4.9+
Link: https://lore.kernel.org/r/20191023153138.23442-1-tony@atomide.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-23 21:15:21 +05:30
..
bestcomm
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dw
dmaengine: dw: platform: Split OF helpers to separate module
2019-08-21 09:41:28 +05:30
dw-axi-dmac
dmaengine fixes for v5.2-rc4
2019-06-08 12:46:31 -07:00
dw-edma
dmaengine: dw-edma: fix endianess confusion
2019-07-22 20:58:15 +05:30
hsu
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
ioat
dmanegine: ioat/dca: Use struct_size() helper
2019-09-04 10:17:14 +05:30
ipu
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mediatek
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
ppc4xx
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7
2019-05-21 11:28:40 +02:00
qcom
dmaengine: qcom: bam_dma: Fix resource leak
2019-10-18 13:27:58 +05:30
sh
dmaengine updates for v5.4-rc1
2019-09-17 19:04:40 -07:00
ti
dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle
2019-10-23 21:15:21 +05:30
xilinx
dmaengine: xilinx_dma: Fix control reg update in vdma_channel_set_config
2019-10-15 15:41:55 +05:30
acpi-dma.c
dmaengine: acpi: Add kernel doc parameter descriptions
2019-08-21 09:41:27 +05:30
altera-msgdma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
amba-pl08x.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
at_hdmac_regs.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
at_hdmac.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
at_xdmac.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
bcm2835-dma.c
dmaengine updates for v5.4-rc1
2019-09-17 19:04:40 -07:00
bcm-sba-raid.c
dmaengine: bcm-sba-raid: no need to check return value of debugfs_create functions
2019-06-14 11:14:58 +05:30
coh901318_lli.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
coh901318.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
coh901318.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
dma-axi-dmac.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
dma-jz4780.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
dmaengine.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
dmaengine.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dmatest.c
dmaengine: dmatest: Add support for completion polling
2019-09-04 10:14:22 +05:30
ep93xx_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
fsl_raid.c
dmaengine: fsl_raid: make of_device_ids const.
2017-06-29 09:25:28 +05:30
fsl_raid.h
dmaengine: Driver support for FSL RaidEngine device.
2015-04-02 16:10:27 +05:30
fsl-edma-common.c
dmaengine: change alignment of mux_configure32 and fsl_edma_chan_mux
2019-08-20 17:09:34 +05:30
fsl-edma-common.h
dmaengine: fsl-edma: add i.mx7ulp edma2 version support
2019-08-08 17:54:36 +05:30
fsl-edma.c
dmaengine: fsl-edma: implement .device_synchronize callback
2019-08-08 19:01:58 +05:30
fsl-qdma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
fsldma.c
dmaengine: fsldma: Mark expected switch fall-through
2019-08-20 19:42:34 -05:00
fsldma.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 40
2019-05-24 17:27:12 +02:00
idma64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
idma64.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
img-mdc-dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422
2019-06-05 17:37:15 +02:00
imx-dma.c
dmaengine: imx-dma: Mark expected switch fall-through
2019-07-31 20:49:04 +05:30
imx-sdma.c
dmaengine: imx-sdma: fix size check for sdma script_number
2019-10-14 13:33:44 +05:30
iop-adma.c
dmaengine updates for v5.4-rc1
2019-09-17 19:04:40 -07:00
iop-adma.h
dma: iop-adma: allow building without platform headers
2019-08-14 15:36:22 +02:00
k3dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Kconfig
Main MIPS changes for v5.4:
2019-09-22 09:30:30 -07:00
lpc18xx-dmamux.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Makefile
dma: Drop JZ4740 driver
2019-07-30 10:41:53 -07:00
mcf-edma.c
dmaengine: fsl-edma: add drvdata for fsl-edma
2019-07-03 13:28:22 +05:30
mic_x100_dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
mic_x100_dma.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290
2019-06-05 17:36:38 +02:00
mmp_pdma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mmp_tdma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
moxart-dma.c
treewide: Use struct_size() for kmalloc()-family
2018-06-06 11:15:43 -07:00
mpc512x_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7
2019-05-21 11:28:40 +02:00
mv_xor_v2.c
dmaengine: mv_xor_v2: Fix -Wshift-negative-value
2019-08-20 17:06:36 +05:30
mv_xor.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
mv_xor.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
mxs-dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
nbpfaxi.c
dmaengine: nbpfaxi: Use dev_get_drvdata()
2019-04-29 10:47:15 +05:30
of-dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
owl-dma.c
dmaengine: owl: Fix warnings generated during build
2018-10-15 22:39:16 +05:30
pch_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
pl330.c
dmaengine: pl330: use the same attributes when freeing pl330->mcode_cpu
2019-08-08 18:49:43 +05:30
pxa_dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
s3c24xx-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
sa11x0-dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sirf-dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
2019-05-21 11:28:40 +02:00
sprd-dma.c
dmaengine: sprd: Fix the possible memory leak issue
2019-10-15 15:47:24 +05:30
st_fdma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
st_fdma.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ste_dma40_ll.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
ste_dma40_ll.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
ste_dma40.c
dmaengine: ste_dma40: fix unneeded variable warning
2019-07-22 20:58:33 +05:30
stm32-dma.c
dmaengine: stm32-dma: Use struct_size() helper
2019-09-04 10:25:08 +05:30
stm32-dmamux.c
dmaengine: stm32-dmamux: Switch to use device_property_count_u32()
2019-07-29 12:25:21 +05:30
stm32-mdma.c
dmaengine updates for v5.4-rc1
2019-09-17 19:04:40 -07:00
sun4i-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
sun6i-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
tegra20-apb-dma.c
dmaengine: tegra-apb: Support per-burst residue granularity
2019-07-25 15:55:51 +05:30
tegra210-adma.c
dmaengine: tegra210-adma: fix transfer failure
2019-10-14 12:40:38 +05:30
timb_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
TODO
dmaengine: dw: don't perform DMA when dmaengine_submit is called
2014-07-15 22:14:30 +05:30
txx9dmac.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
txx9dmac.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
uniphier-mdmac.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
virt-dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
virt-dma.h
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
xgene-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
zx_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00