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linux/drivers/dma
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Akhil R 30f0ced997 dmaengine: tegra186: Fix residual calculation 
The existing residual calculation returns an incorrect value when
bytes_xfer == bytes_req. This scenario occurs particularly with drivers
like UART where DMA is scheduled for maximum number of bytes and is
terminated when the bytes inflow stops. At higher baud rates, it could
request the tx_status while there is no bytes left to transfer. This will
lead to incorrect residual being set. Hence return residual as '0' when
bytes transferred equals to the bytes requested.

Fixes: ee17028009d4 ("dmaengine: tegra: Add tegra gpcdma driver")
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20240315124411.17582-1-akhilrajeev@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-03-28 12:31:42 +05:30
..
bestcomm
dmaengine: bestcomm: Code cleanup for bcom_sram_init
2024-01-30 22:11:56 +05:30
dw
dmaengine: dw: platform: Convert to platform remove callback returning void
2023-09-28 13:10:47 +05:30
dw-axi-dmac
dmaengine: dw-axi-dmac: Add support DMAX_NUM_CHANNELS > 16
2023-10-16 16:38:10 +05:30
dw-edma
dmaengine: dw-edma: eDMA: Add sync read before starting the DMA transfer in remote setup
2024-02-07 09:30:52 +01:00
fsl-dpaa2-qdma
dmaengine: fsl-dpaa2-qdma: Fix the size of dma pools
2024-01-22 16:05:05 +05:30
hsu
dmaengine: hsu: Include headers we are direct user of
2022-09-04 22:49:35 +05:30
idxd
dmaengine updates for v6.9
2024-03-15 12:25:13 -07:00
ioat
dmaengine: ioatdma: use pci_dev_id() to simplify the code
2023-08-21 18:39:25 +05:30
lgm
dmaengine: lgm: Use builtin_platform_driver macro to simplify the code
2023-08-21 11:13:09 +05:30
mediatek
dmaengine updates for v6.7
2023-11-03 18:56:51 -10:00
ppc4xx
dmaengine: ppc4xx: adma: Convert to platform remove callback returning void
2023-09-28 13:10:52 +05:30
ptdma
dmaengine: ptdma: use consistent DMA masks
2024-02-23 12:22:55 +05:30
qcom
irqchip: Convert all platform MSI users to the new API
2024-02-15 17:55:40 +01:00
sf-pdma
dmaengine: sf-pdma: add mpfs-pdma compatible name
2023-12-11 16:33:22 +05:30
sh
dmaengine: shdma: increase size of 'dev_id'
2024-01-19 18:12:10 +05:30
ti
dmaengine updates for v6.9
2024-03-15 12:25:13 -07:00
xilinx
dmaengine: xilinx_dma: check for invalid vdma interleaved parameters
2024-01-22 17:00:12 +05:30
acpi-dma.c
…
altera-msgdma.c
dmaengine: altera-msgdma: Convert to platform remove callback returning void
2023-09-28 13:10:45 +05:30
amba-pl08x.c
dmaengine: pl08x: constify pointer to char in filter function
2024-02-23 12:44:08 +05:30
apple-admac.c
dmaengine: apple-admac: Keep upper bits of REG_BUS_WIDTH
2023-11-24 18:57:56 +05:30
at_hdmac.c
dmaengine: at_hdmac: add missing kernel-doc style description
2024-02-02 17:16:55 +01:00
at_xdmac.c
dmaengine: at_xdmac: Convert to platform remove callback returning void
2023-09-28 13:10:45 +05:30
bcm2835-dma.c
dmaengine: bcm2835-dma: Convert to platform remove callback returning void
2023-09-28 13:10:46 +05:30
bcm-sba-raid.c
dmaengine: bcm-sba-raid: Convert to platform remove callback returning void
2023-09-28 13:10:46 +05:30
dma-axi-dmac.c
dmaengine: axi-dmac: Improve cyclic DMA transfers in SG mode
2023-12-21 21:39:56 +05:30
dma-jz4780.c
dmaengine: dma-jz4780: Convert to platform remove callback returning void
2023-09-28 13:10:47 +05:30
dmaengine.c
dmaengine: fix NULL pointer in channel unregistration function
2023-12-21 21:44:29 +05:30
dmaengine.h
…
dmatest.c
dmaengine: dmatest: prevent using swiotlb buffer with nobounce parameter
2023-12-11 20:15:27 +05:30
ep93xx_dma.c
dmaengine: ep93xx_dma: Annotate struct ep93xx_dma_engine with __counted_by
2023-10-04 15:12:57 +05:30
fsl_raid.c
dmaengine: fsl_raid: Convert to platform remove callback returning void
2023-09-28 13:10:48 +05:30
fsl_raid.h
…
fsl-edma-common.c
dmaengine updates for v6.9
2024-03-15 12:25:13 -07:00
fsl-edma-common.h
dmaengine updates for v6.9
2024-03-15 12:25:13 -07:00
fsl-edma-main.c
dmaengine updates for v6.9
2024-03-15 12:25:13 -07:00
fsl-qdma.c
dmaengine: fsl-qdma: add __iomem and struct in union to fix sparse warning
2024-02-23 12:20:39 +05:30
fsldma.c
dmaengine: fsldma: Convert to platform remove callback returning void
2023-09-28 13:10:48 +05:30
fsldma.h
…
hisi_dma.c
dmaengine: hisilicon: Annotate struct hisi_dma_dev with __counted_by
2023-09-28 16:42:14 +05:30
idma64.c
dmaengine: idma64: Convert to platform remove callback returning void
2023-09-28 13:10:48 +05:30
idma64.h
…
img-mdc-dma.c
dmaengine: img-mdc-dma: Convert to platform remove callback returning void
2023-09-28 13:10:48 +05:30
imx-dma.c
dmaengine: imx-dma: Convert to platform remove callback returning void
2023-09-28 13:10:49 +05:30
imx-sdma.c
dmaengine: imx-sdma: fix Excess kernel-doc warnings
2024-01-19 17:05:04 +05:30
k3dma.c
dmaengine: Drop unnecessary of_match_device() calls
2023-10-09 10:55:16 +05:30
Kconfig
dmaengine: tegra210-adma: Update dependency to ARCH_TEGRA
2024-01-22 16:38:11 +05:30
lpc18xx-dmamux.c
dmaengine: Explicitly include correct DT includes
2023-08-01 23:51:27 +05:30
ls2x-apb-dma.c
dmaengine: ls2x-apb: New driver for the Loongson LS2X APB DMA controller
2023-12-21 21:35:13 +05:30
Makefile
dmaengine: ls2x-apb: New driver for the Loongson LS2X APB DMA controller
2023-12-21 21:35:13 +05:30
mcf-edma-main.c
dmaengine: mcf-edma: utilize edma_write_tcdreg() macro for TCD Access
2024-02-07 09:40:17 +01:00
milbeaut-hdmac.c
dmaengine: milbeaut-hdmac: Convert to platform remove callback returning void
2023-11-24 18:32:30 +05:30
milbeaut-xdmac.c
dmaengine: milbeaut-xdmac: Convert to platform remove callback returning void
2023-11-24 18:32:30 +05:30
mmp_pdma.c
dmaengine: Drop unnecessary of_match_device() calls
2023-10-09 10:55:16 +05:30
mmp_tdma.c
dmaengine: mmp_tdma: drop unused variable 'of_id'
2023-10-10 23:30:52 +05:30
moxart-dma.c
dmaengine: moxart-dma: Annotate struct moxart_desc with __counted_by
2023-09-28 16:42:14 +05:30
mpc512x_dma.c
dmaengine: mpc512x_dma: Convert to platform remove callback returning void
2023-09-28 13:10:51 +05:30
mv_xor_v2.c
irqchip: Convert all platform MSI users to the new API
2024-02-15 17:55:40 +01:00
mv_xor.c
dmaengine: Use device_get_match_data()
2023-10-09 10:54:48 +05:30
mv_xor.h
…
mxs-dma.c
dmaengine: Explicitly include correct DT includes
2023-08-01 23:51:27 +05:30
nbpfaxi.c
dmaengine: nbpfaxi: Convert to platform remove callback returning void
2023-09-28 13:10:52 +05:30
of-dma.c
dmaengine: of: constify of_phandle_args in of_dma_find_controller()
2024-02-23 12:44:08 +05:30
owl-dma.c
dmaengine: owl: fix register access functions
2024-03-28 12:29:36 +05:30
pch_dma.c
…
pl330.c
dmaengine: Revert "dmaengine: pl330: issue_pending waits until WFP state"
2024-03-28 12:28:00 +05:30
plx_dma.c
dmaengine: plx_dma: Don't set chancnt
2023-05-24 12:24:32 +05:30
pxa_dma.c
dmaengine: Drop unnecessary of_match_device() calls
2023-10-09 10:55:16 +05:30
sa11x0-dma.c
dmaengine: sa11x0: Annotate struct sa11x0_dma_desc with __counted_by
2023-09-28 16:42:14 +05:30
sprd-dma.c
dmaengine: sprd: delete redundant parameter for dma driver function
2023-10-02 21:28:33 +05:30
st_fdma.c
dmaengine: Use device_get_match_data()
2023-10-09 10:54:48 +05:30
st_fdma.h
dmaengine: st_fdma: Annotate struct st_fdma_desc with __counted_by
2023-09-28 16:42:14 +05:30
ste_dma40_ll.c
dmaengine: ste_dma40: Remove platform data
2023-05-16 23:00:19 +05:30
ste_dma40_ll.h
…
ste_dma40.c
dmaengine: std_dma40: fix kernel-doc warnings and spelling
2023-12-21 21:31:30 +05:30
ste_dma40.h
dmaengine: ste_dma40: Remove platform data
2023-05-16 23:00:19 +05:30
stm32-dma.c
dmaengine: stm32-dma: avoid bitfield overflow assertion
2023-11-24 18:28:25 +05:30
stm32-dmamux.c
dmaengine: Explicitly include correct DT includes
2023-08-01 23:51:27 +05:30
stm32-mdma.c
dmaengine updates for v6.7
2023-11-03 18:56:51 -10:00
sun4i-dma.c
dmaengine: sun4i-dma: Convert to platform remove callback returning void
2023-09-28 13:10:55 +05:30
sun6i-dma.c
dmaengine: sun6i-dma: Convert to platform remove callback returning void
2023-09-28 13:10:56 +05:30
tegra20-apb-dma.c
dmaengine: tegra20-apb-dma: Convert to platform remove callback returning void
2023-09-28 13:10:56 +05:30
tegra186-gpc-dma.c
dmaengine: tegra186: Fix residual calculation
2024-03-28 12:31:42 +05:30
tegra210-adma.c
dmaengine: tegra210-adma: Support dma-channel-mask property
2023-12-11 17:44:18 +05:30
timb_dma.c
dmaengine: timb_dma: Convert to platform remove callback returning void
2023-09-28 13:10:58 +05:30
TODO
…
txx9dmac.c
dmaengine: txx9dmac: Convert to platform remove callback returning void
2023-09-28 13:10:58 +05:30
txx9dmac.h
…
uniphier-mdmac.c
dmaengine: uniphier-mdmac: Convert to platform remove callback returning void
2023-11-24 18:32:30 +05:30
uniphier-xdmac.c
dmaengine: uniphier-xdmac: Convert to platform remove callback returning void
2023-11-24 18:32:30 +05:30
virt-dma.c
…
virt-dma.h
…
xgene-dma.c
dmaengine: xgene-dma: Convert to platform remove callback returning void
2023-09-28 13:10:58 +05:30