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33633583a2
linux/drivers/dma
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Paul Cercueil 33633583a2 dmaengine: dma-jz4780: Separate chan/ctrl registers 
The register area of the JZ4780 DMA core can be split into different
sections for different purposes:

* one set of registers is used to perform actions at the DMA core level,
that will generally affect all channels;

* one set of registers per DMA channel, to perform actions at the DMA
channel level, that will only affect the channel in question.

The problem rises when trying to support new versions of the JZ47xx
Ingenic SoC. For instance, the JZ4770 has two DMA cores, each one
with six DMA channels, and the register sets are interleaved:
<DMA0 chan regs> <DMA1 chan regs> <DMA0 ctrl regs> <DMA1 ctrl regs>

By using one memory resource for the channel-specific registers and
one memory resource for the core-specific registers, we can support
the JZ4770, by initializing the driver once per DMA core with different
addresses.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-11 12:59:26 +05:30
..
bestcomm treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
dw dmaengine: dw: simplify getting .drvdata 2018-04-22 11:50:56 +05:30
dw-axi-dmac dmaengine: dw-axi-dmac: fix spelling mistake: "catched" -> "caught" 2018-03-27 17:44:39 +05:30
hsu dmaengine: hsu: Support dmaengine_terminate_sync() 2018-07-10 21:10:44 +05:30
ioat dmaengine: ioatdma: set the completion address register after channel reset 2018-06-19 10:00:16 +05:30
ipu treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
mediatek dmaengine: mediatek: Add MediaTek High-Speed DMA controller for MT7622 and MT7623 SoC 2018-03-27 15:18:15 +05:30
ppc4xx Merge branch 'topic/ppc4xx' into for-linus 2017-09-06 21:54:41 +05:30
qcom dmaengine updates for 4.18-rc1 2018-06-08 11:02:21 -07:00
sh dmaengine: sh: rcar-dmac: Should not stop the DMAC by rcar_dmac_sync_tcr() 2018-07-31 09:57:27 +05:30
ti dmaengine: ti: omap-dma: Fix OMAP1510 incorrect residue_granularity 2018-06-19 09:59:13 +05:30
xilinx dmaengine: xilinx_dma: Enable VDMA S2MM vertical flip support 2018-06-29 14:20:00 +05:30
acpi-dma.c dmaengine: acpi-dma: align debug message with flow 2016-02-22 09:06:09 +05:30
altera-msgdma.c dmaengine: altera: Use IRQ-safe spinlock calls in the error paths as well 2017-10-20 11:51:10 +05:30
amba-pl08x.c dmaengine: amba-pl08x: Use vchan_terminate_vdesc() instead of desc_free 2017-12-04 22:33:51 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: Remove unnecessary 0x prefixes before %pad 2017-11-08 10:47:04 +05:30
at_hdmac.c dmaengine: at_hdmac: simplify getting .drvdata 2018-04-22 21:34:58 +05:30
at_xdmac.c dmaengine: at_xdmac: simplify getting .drvdata 2018-04-22 21:36:10 +05:30
bcm2835-dma.c dmaengine: bcm2835-dma: Use vchan_terminate_vdesc() instead of desc_free 2017-12-04 22:33:51 +05:30
bcm-sba-raid.c treewide: Use struct_size() for devm_kmalloc() and friends 2018-06-06 11:15:43 -07:00
coh901318_lli.c dmaengine: coh901318: use NULL for pointer initialization 2016-09-26 22:28:24 +05:30
coh901318.c dmaengine: coh901318: Remove unnecessary 0x prefixes before %pad 2017-11-08 10:46:46 +05:30
coh901318.h
dma-axi-dmac.c dmaengine: axi-dmac: Request IRQ with IRQF_SHARED 2018-05-02 10:06:42 +05:30
dma-jz4740.c dmaengine: jz4740: disable/unprepare clk if probe fails 2017-12-11 09:00:06 +05:30
dma-jz4780.c dmaengine: dma-jz4780: Separate chan/ctrl registers 2018-09-11 12:59:26 +05:30
dmaengine.c Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -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: Remove use of VLAs 2018-04-16 21:05:54 +05:30
ep93xx_dma.c headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
fsl_raid.c dmaengine: fsl_raid: make of_device_ids const. 2017-06-29 09:25:28 +05:30
fsl_raid.h
fsl-edma.c dmaengine: fsl-edma: disable clks on all error paths 2017-12-15 09:53:04 +05:30
fsldma.c dmaengine: fsldma: simplify getting .drvdata 2018-04-22 21:37:17 +05:30
fsldma.h dmaengine: fsldma: set BWC, DAHTS and SAHTS values correctly 2017-06-22 18:31:35 +05:30
idma64.c dmaengine: idma64: Support dmaengine_terminate_sync() 2018-07-10 21:10:44 +05:30
idma64.h asm-generic changes for 4.6 2016-03-24 23:13:48 -07:00
img-mdc-dma.c dmaengine: img-mdc-dma: Use vchan_terminate_vdesc() instead of desc_free 2017-12-04 22:33:51 +05:30
imx-dma.c dmaengine: imx-dma: Switch to SPDX identifier 2018-05-23 11:10:32 +05:30
imx-sdma.c dmaengine: imx-sdma: add memcpy interface 2018-07-30 10:33:58 +05:30
iop-adma.c dmaengine: iop-adma: convert callback to helper function 2016-08-08 08:11:39 +05:30
k3dma.c dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate() 2018-06-28 11:57:21 +05:30
Kconfig Merge branch 'topic/imx' into for-linus 2018-08-17 17:59:27 +05:30
lpc18xx-dmamux.c
Makefile dmaengine: Add Actions Semi Owl family S900 DMA driver 2018-08-09 08:16:00 +05:30
mic_x100_dma.c dmaengine: mic_x100_dma: use the new helper to simplify the code 2018-07-30 10:50:22 +05:30
mic_x100_dma.h
mmp_pdma.c dmaengine: mmp_pdma: convert callback to helper function 2016-08-08 08:11:39 +05:30
mmp_tdma.c Merge branch 'topic/err_reporting' into for-linus 2016-10-03 09:17:33 +05:30
moxart-dma.c treewide: Use struct_size() for kmalloc()-family 2018-06-06 11:15:43 -07:00
mpc512x_dma.c Merge branch 'topic/err_reporting' into for-linus 2016-10-03 09:17:33 +05:30
mv_xor_v2.c dmaengine: mv_xor_v2: use {lower,upper}_32_bits to configure HW descriptor address 2018-07-25 17:53:22 +05:30
mv_xor.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
mv_xor.h dmaengine: mv_xor: Add support for scatter-gather DMA mode 2016-11-25 11:16:36 +05:30
mxs-dma.c dmaengine: mxs-dma: Switch to SPDX identifier 2018-05-23 11:10:31 +05:30
nbpfaxi.c dmaengine: nbpfaxi: Mark expected switch fall-through 2018-07-09 17:01:35 +05:30
of-dma.c dmaengine: Convert to using %pOF instead of full_name 2017-07-19 09:30:44 +05:30
owl-dma.c dmaengine: Add Actions Semi Owl family S900 DMA driver 2018-08-09 08:16:00 +05:30
pch_dma.c dmaengine: pch_dma: Replace PCI pool old API 2017-10-31 17:01:06 +05:30
pl330.c DMAengine updates for v4.19-rc1 2018-08-18 15:55:59 -07:00
pxa_dma.c dmaengine: pxa: add a default requestor policy 2018-06-18 21:29:23 +02:00
s3c24xx-dma.c headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
sa11x0-dma.c treewide: Use struct_size() for kmalloc()-family 2018-06-06 11:15:43 -07:00
sirf-dma.c dmaengine: sirf-dma: remove unused ‘sdesc’ 2016-12-12 22:25:22 +05:30
sprd-dma.c dmaengine updates for 4.18-rc1 2018-06-08 11:02:21 -07:00
st_fdma.c dmaengine: st_fdma: Fix the error return code in st_fdma_probe() 2016-10-19 22:29:33 +05:30
st_fdma.h dmaengine: st_fdma: Add STMicroelectronics FDMA driver header file 2016-10-18 20:12:06 +05:30
ste_dma40_ll.c dmaengine: ste_dma40_ll: make d40_width_to_bits static 2016-06-08 08:59:55 +05:30
ste_dma40_ll.h
ste_dma40.c dmaengine: ste_dma40: Remove VLA usage 2018-07-02 17:46:24 +05:30
stm32-dma.c dmaengine: stm32: replace "%p" with "%pK" 2018-07-09 23:01:57 +05:30
stm32-dmamux.c dmaengine: stm32-dmamux: fix a potential buffer overflow 2018-03-22 10:51:35 +05:30
stm32-mdma.c dmaengine: stm32: replace "%p" with "%pK" 2018-07-09 23:01:57 +05:30
sun4i-dma.c dmaengine: sun4i: fix invalid argument 2017-04-24 09:50:05 +05:30
sun6i-dma.c dmaengine: sun6i: Retrieve channel count/max request from devicetree 2017-10-23 11:44:03 +05:30
tegra20-apb-dma.c dmaengine: tegra-apb: Support non-flow controlled slave configuration 2017-11-29 19:35:05 +05:30
tegra210-adma.c dmaengine: tegra210-adma: fix of_irq_get() error check 2017-08-09 11:39:16 +05:30
timb_dma.c dmaengine: timb_dma: fix spelling mistake: "Couldnt" -> "Couldn't" 2017-12-11 08:57:38 +05:30
TODO
txx9dmac.c dmaengine: txx9dmac: simplify getting .drvdata 2018-04-22 21:38:06 +05:30
txx9dmac.h
virt-dma.c dmaengine: virt-dma: Add helper to free/reuse a descriptor 2017-12-04 22:33:51 +05:30
virt-dma.h dmaengine: virt-dma: Support for race free transfer termination 2017-12-04 22:33:51 +05:30
xgene-dma.c dmaengine: xgene-dma: remove unused xgene_dma_invalidate_buffer 2017-08-22 22:13:44 +05:30
zx_dma.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00