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
dw-axi-dmac
dw-edma
hsu
ioat
ipu
mediatek
ppc4xx
qcom	dmaengine: qcom: bam_dma: Fix resource leak	2019-10-18 13:27:58 +05:30
sh
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
altera-msgdma.c
amba-pl08x.c
at_hdmac_regs.h
at_hdmac.c
at_xdmac.c
bcm2835-dma.c
bcm-sba-raid.c
coh901318_lli.c
coh901318.c
coh901318.h
dma-axi-dmac.c
dma-jz4780.c
dmaengine.c
dmaengine.h
dmatest.c
ep93xx_dma.c
fsl_raid.c
fsl_raid.h
fsl-edma-common.c
fsl-edma-common.h
fsl-edma.c
fsl-qdma.c
fsldma.c
fsldma.h
idma64.c
idma64.h
img-mdc-dma.c
imx-dma.c
imx-sdma.c	dmaengine: imx-sdma: fix size check for sdma script_number	2019-10-14 13:33:44 +05:30
iop-adma.c
iop-adma.h
k3dma.c
Kconfig	Main MIPS changes for v5.4:	2019-09-22 09:30:30 -07:00
lpc18xx-dmamux.c
Makefile
mcf-edma.c
mic_x100_dma.c
mic_x100_dma.h
mmp_pdma.c
mmp_tdma.c
moxart-dma.c
mpc512x_dma.c
mv_xor_v2.c
mv_xor.c
mv_xor.h
mxs-dma.c
nbpfaxi.c
of-dma.c
owl-dma.c
pch_dma.c
pl330.c
pxa_dma.c
s3c24xx-dma.c
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
st_fdma.h
ste_dma40_ll.c
ste_dma40_ll.h
ste_dma40.c
stm32-dma.c
stm32-dmamux.c
stm32-mdma.c
sun4i-dma.c
sun6i-dma.c
tegra20-apb-dma.c
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
virt-dma.c
virt-dma.h
xgene-dma.c
zx_dma.c