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linux/drivers/dma
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Grygorii Strashko 52c74d3d35 dmaengine: ti: k3-udma-glue: fix channel enable functions 
Now the K3 UDMA glue layer enable functions perform RMW operation on UDMA
RX/TX RT_CTL registers to set EN bit and enable channel, which is
incorrect, because only EN bit has to be set in those registers to enable
channel (all other bits should be cleared 0).
More over, this causes issues when bootloader leaves UDMA channel RX/TX
RT_CTL registers in incorrect state - TDOWN bit set, for example. As
result, UDMA channel will just perform teardown right after it's enabled.

Hence, fix it by writing correct values (EN=1) directly in UDMA channel
RX/TX RT_CTL registers in k3_udma_glue_enable_tx/rx_chn() functions.

Fixes: d702419134 ("dmaengine: ti: k3-udma: Add glue layer for non DMAengine users")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200916120955.7963-1-grygorii.strashko@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 13:06:26 +05:30
..
bestcomm treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dw dmaengine: dw: Add DMA-channels mask cell support 2020-08-17 11:58:31 +05:30
dw-axi-dmac dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
dw-edma dmaengine: dw-edma: Fix Using plain integer as NULL pointer in dw-edma-v0-debugfs.c 2020-09-18 12:42:33 +05:30
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: remove set but not used variable 'dpaa2_qdma' 2020-03-06 19:04:55 +05:30
hsu dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
idxd Linux 5.9-rc4 2020-09-11 17:45:36 +05:30
ioat dmaengine: ioat: Make two symbols static 2020-09-18 12:31:37 +05:30
ipu treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mediatek dmaengine: mediatek: simplify the return expression of mtk_uart_apdma_runtime_resume() 2020-09-18 12:32:37 +05:30
ppc4xx dmaengine: ppc4xx: Use scnprintf() for avoiding potential buffer overflow 2020-03-11 15:10:45 +05:30
qcom dmaengine: qcom: bam_dma: Drop local dma_parms 2020-09-11 17:42:13 +05:30
sf-pdma dmaengine: sf-pdma: remove unused 'desc' 2020-09-18 12:30:53 +05:30
sh dmaengine: Kconfig: Update description for RCAR_DMAC config 2020-09-11 17:48:28 +05:30
ti dmaengine: ti: k3-udma-glue: fix channel enable functions 2020-09-18 13:06:26 +05:30
xilinx dmaengine: xilinx: Simplify with dev_err_probe() 2020-09-03 12:38:59 +05:30
acpi-dma.c dmaengine: acpi: Put the CSRT table after using it 2020-08-17 10:21:37 +05:30
altera-msgdma.c dmaengine: altera-msgdma: Fix struct documentation blocks 2020-07-15 17:50:46 +05:30
amba-pl08x.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
at_hdmac.c dmaengine: at_hdmac: add missing kfree() call in at_dma_xlate() 2020-08-19 09:58:38 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: Replace zero-length array with flexible-array 2020-05-13 20:25:16 +05:30
at_xdmac.c dmaengine: at_xdmac: Replace zero-length array with flexible-array 2020-05-13 20:25:41 +05:30
bcm-sba-raid.c dmaengine: bcm-sba-raid: Replace zero-length array with flexible-array member 2020-02-13 20:15:35 +05:30
bcm2835-dma.c dmaengine: bcm2835: Drop local dma_parms 2020-09-11 17:42:12 +05:30
coh901318.c dmaengine: coh901318: Fix a double lock bug in dma_tc_handle() 2020-02-24 21:59:45 +05:30
coh901318.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
coh901318_lli.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
dma-axi-dmac.c dmaengine: axi-dmac: Drop local dma_parms 2020-09-11 17:42:12 +05:30
dma-jz4780.c drivers/dma/dma-jz4780: Fix race condition between probe and irq handler 2020-08-25 16:45:17 +05:30
dmaengine.c dmaengine: Save few bytes and increase readability of dma_request_chan() 2020-09-03 12:22:35 +05:30
dmaengine.h dmaengine: Create debug directories for DMA devices 2020-03-11 14:56:14 +05:30
dmatest.c dmaengine: dmatest: Print error codes as signed value 2020-09-11 17:44:28 +05:30
ep93xx_dma.c dmaengine: ep93xx_dma: Provide some missing struct attribute documentation 2020-07-15 17:50:46 +05:30
fsl-edma-common.c dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu 2020-07-06 14:49:22 +05:30
fsl-edma-common.h dmaengine: fsl-edma-common: correct DSIZE_32BYTE 2020-07-06 10:24:49 +05:30
fsl-edma.c dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler 2020-06-24 13:05:01 +05:30
fsl-qdma.c dmaengine: Extend NXP QDMA driver to check transmission errors 2020-07-17 11:50:03 +05:30
fsl_raid.c dmaengine: fsl_raid: make of_device_ids const. 2017-06-29 09:25:28 +05:30
fsl_raid.h
fsldma.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
fsldma.h fsldma: fix very broken 32-bit ppc ioread64 functionality 2020-08-29 13:50:56 -07:00
hisi_dma.c dmaengine: hisilicon: Use struct_size() in devm_kzalloc() 2020-06-24 11:26:23 +05:30
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 Linux 5.9-rc4 2020-09-11 17:45:36 +05:30
imx-sdma.c dmaengine: imx-sdma: Drop local dma_parms 2020-09-11 17:42:13 +05:30
iop-adma.c dmaengine: iop-adma: Fix pointer cast warnings 2020-09-18 12:55:16 +05:30
iop-adma.h treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
k3dma.c dmaengine: k3dma: Avoid null pointer traversal 2019-12-23 13:21:14 +05:30
Kconfig Merge branch 'topic/xilinx' into fixes 2020-08-07 11:13:37 +05:30
lpc18xx-dmamux.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver 2020-03-02 14:54:34 +05:30
mcf-edma.c dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler 2020-06-24 13:06:15 +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
milbeaut-hdmac.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
milbeaut-xdmac.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
mmp_pdma.c dmaengine: mmp_pdma: Demote obvious misuse of kerneldoc to standard comment blocks 2020-07-15 17:50:46 +05:30
mmp_tdma.c dmaengine: mmp_tdma: share the IRQ line 2020-06-16 21:59:01 +05:30
moxart-dma.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
mpc512x_dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7 2019-05-21 11:28:40 +02:00
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
mv_xor_v2.c dmaengine: mv_xor_v2: Supply some missing 'struct mv_xor_v2_device' attribute docs 2020-07-15 17:50:47 +05:30
mxs-dma.c dmaengine: mxs: Drop local dma_parms 2020-09-11 17:42:13 +05:30
nbpfaxi.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
of-dma.c dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling 2020-08-17 11:14:28 +05:30
owl-dma.c dmaengine: Actions: Add support for S700 DMA engine 2020-07-27 14:43:08 +05:30
pch_dma.c dmaengine: pch_dma: use generic power management 2020-08-17 10:23:55 +05:30
pl330.c Linux 5.9-rc4 2020-09-11 17:45:36 +05:30
plx_dma.c dmaengine: plx-dma: Implement descriptor submission 2020-01-15 19:40:51 +05:30
pxa_dma.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
s3c24xx-dma.c dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too" 2020-01-23 17:03:25 +05:30
sa11x0-dma.c dmaengine: sa11x0: Replace zero-length array with flexible-array member 2020-02-19 17:48:40 +05:30
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: Set request pending flag when DMA controller is active 2020-03-23 11:38:24 +05:30
st_fdma.c iov_iter: Move unnecessary inclusion of crypto/hash.h 2020-06-30 09:34:23 -04:00
st_fdma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ste_dma40.c dmaengine: ste_dma40: Drop local dma_parms 2020-09-11 17:42:13 +05:30
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
stm32-dma.c dmaengine: stm32: Simplify with dev_err_probe() 2020-09-03 12:38:59 +05:30
stm32-dmamux.c dmaengine: stm32: Simplify with dev_err_probe() 2020-09-03 12:38:59 +05:30
stm32-mdma.c dmaengine: stm32: Simplify with dev_err_probe() 2020-09-03 12:38:59 +05:30
sun4i-dma.c dmaengine: sun4i-dma: Demote obvious misuse of kerneldoc to standard comment blocks 2020-07-15 17:50:47 +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: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
tegra210-adma.c dmaengine: tegra210-adma: Fix runtime PM imbalance on error 2020-06-24 15:11:39 +05:30
timb_dma.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
TODO
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: uniphier-mdmac: replace zero-length array with flexible-array member 2020-02-13 20:15:57 +05:30
uniphier-xdmac.c iov_iter: Move unnecessary inclusion of crypto/hash.h 2020-06-30 09:34:23 -04:00
virt-dma.c dmaengine updates for v5.6-rc1 2020-01-27 10:55:50 -08:00
virt-dma.h dmaengine: virt-dma: Add missing locking around list operations 2019-12-26 10:04:18 +05:30
xgene-dma.c dmaengine: xgene-dma: Provide descriptions for 'dev' and 'clk' in device's ddata 2020-07-15 17:50:47 +05:30
zx_dma.c dmaengine: zx: remove redundant irqsave in hardIRQ 2020-09-18 12:30:50 +05:30