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: fdea2d09b9 ("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
dw	dmaengine: dw: platform: Split OF helpers to separate module	2019-08-21 09:41:28 +05:30
dw-axi-dmac
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
mediatek	dmaengine: Remove dev_err() usage after platform_get_irq()	2019-07-31 20:50:53 +05:30
ppc4xx
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
amba-pl08x.c	dmaengine updates for v5.3-rc1	2019-07-17 09:55:43 -07:00
at_hdmac_regs.h
at_hdmac.c
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
coh901318_lli.c
coh901318.c	dmaengine updates for v5.3-rc1	2019-07-17 09:55:43 -07:00
coh901318.h
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
dmatest.c	dmaengine: dmatest: Add support for completion polling	2019-09-04 10:14:22 +05:30
ep93xx_dma.c
fsl_raid.c
fsl_raid.h
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
idma64.c
idma64.h
img-mdc-dma.c
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
Kconfig	Main MIPS changes for v5.4:	2019-09-22 09:30:30 -07:00
lpc18xx-dmamux.c
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
mmp_pdma.c
mmp_tdma.c	dmaengine updates for v5.3-rc1	2019-07-17 09:55:43 -07:00
moxart-dma.c
mpc512x_dma.c
mv_xor_v2.c	dmaengine: mv_xor_v2: Fix -Wshift-negative-value	2019-08-20 17:06:36 +05:30
mv_xor.c
mv_xor.h
mxs-dma.c	dmaengine updates for v5.3-rc1	2019-07-17 09:55:43 -07:00
nbpfaxi.c
of-dma.c	dmaengine updates for v5.3-rc1	2019-07-17 09:55:43 -07:00
owl-dma.c
pch_dma.c
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
sirf-dma.c
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
ste_dma40_ll.c
ste_dma40_ll.h
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
TODO
txx9dmac.c
txx9dmac.h
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