| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"This merge window brings a good size of cleanups on various platforms.
Among the bigger ones:
- Removal of Samsung s5pc100 and s5p64xx platforms. Both of these
have lacked active support for quite a while, and after asking
around nobody showed interest in keeping them around. If needed,
they could be resurrected in the future but it's more likely that
we would prefer reintroduction of them as DT and
multiplatform-enabled platforms instead.
- OMAP4 controller code register define diet. They defined a lot of
registers that were never actually used, etc.
- Move of some of the Tegra platform code (PMC, APBIO, fuse,
powergate) to drivers/soc so it can be shared with 64-bit code.
This also converts them over to traditional driver models where
possible.
- Removal of legacy gpio-samsung driver, since the last users have
been removed (moved to pinctrl)
Plus a bunch of smaller changes for various platforms that sort of
dissapear in the diffstat for the above. clps711x cleanups, shmobile
header file refactoring/moves for multiplatform friendliness, some
misc cleanups, etc"
* tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits)
drivers: CCI: Correct use of ! and &
video: clcd-versatile: Depend on ARM
video: fix up versatile CLCD helper move
MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
MAINTAINERS: Remove Kirkwood
ARM: tegra: Convert PMC to a driver
soc/tegra: fuse: Set up in early initcall
ARM: tegra: Always lock the CPU reset vector
ARM: tegra: Setup CPU hotplug in a pure initcall
soc/tegra: Implement runtime check for Tegra SoCs
soc/tegra: fuse: fix dummy functions
soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
soc/tegra: Add efuse and apbmisc bindings
soc/tegra: Add efuse driver for Tegra
ARM: tegra: move fuse exports to soc/tegra/fuse.h
ARM: tegra: export apb dma readl/writel
ARM: tegra: Use a function to get the chip ID
ARM: tegra: Sort includes alphabetically
ARM: tegra: Move includes to include/soc/tegra
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
Merge "Samsung cleanup 2nd version for S5P SoCs for 3.17" from Kukjin Kim:
Cleanup S5P SoCs for 3.17
- removing s5p64x0 SoCs and s5pc100 SoC in mainline because
no more user and if it is required next time, it will be
supported with DT.
* tag 's5p-cleanup-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
video: fbdev: s3c-fb: remove s5pc100 related fimd and fb codes
mtd: onenand: remove s5pc100 related onenand codes
spi: s3c64xx: remove s5pc100 related spi codes
gpio: samsung: remov s5pc100 related gpio codes
ARM: S5PC100: no more support S5PC100 SoC
video: fbdev: s3c-fb: remove s5p64x0 related fimd codes
spi: s3c64xx: remove s5p64x0 related spi codes
gpio: samsung: remove s5p64x0 related gpio codes
ARM: S5P64X0: no more support S5P6440 and S5P6450 SoCs
Signed-off-by: Olof Johansson <olof@lixom.net>
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This patch removes s5p64x0 related spi because of no more support for
s5p64x0 SoCs. Meanwhile, cleanup SPI DT bindings for s5p6440-spi, it
should be s5p64x0-spi instead.
Cc: Mark Brown <broonie@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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'spi/topic/qup', 'spi/topic/rockchip' and 'spi/topic/rspi' into spi-next
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Signed-off-by: addy ke <addy.ke@rock-chips.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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This patch adds support for v1.1.1 of the SPI QUP controller.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/fsl' and 'spi/topic/omap-uwire' into spi-next
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Olof Johansson pointed out that usually the company name is picked as
namespace prefix to specific properties. So expect "energymicro,location"
but fall back to the previously introduced name "efm32,location".
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Allow probing the dw-mmio from devicetree.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/cleanup' and 'spi/topic/davinci' into spi-next
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Currently driver supports only configuration of GPIO CS through
platform data. This patch enhances the driver to configure GPIO
CS through DT. Also update the DT binding documentation to
reflect the availability of cs-gpios.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/fix/xilinx' into spi-linus
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Samsung SPI driver uses generic DMA bindings. Update the documentation
accordingly.
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Samsung SPI driver now uses the generic SPI "cs-gpios"
binding so update the documentation accordingly.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
[javier.martinez@collabora.co.uk: split changes and improve commit message]
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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This patch removes the chip select function. Chip select should instead be
supported using GPIOs, defining the DT entry "cs-gpios", and letting the SPI
core assert/deassert the chip select as it sees fit.
The chip select control inside the controller is buggy. It is supposed to
automatically assert the chip select based on the activity in the controller,
but it is buggy and doesn't work at all. So instead we elect to use GPIOs.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
Pull trivial tree changes from Jiri Kosina:
"Usual pile of patches from trivial tree that make the world go round"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
staging: go7007: remove reference to CONFIG_KMOD
aic7xxx: Remove obsolete preprocessor define
of: dma: doc fixes
doc: fix incorrect formula to calculate CommitLimit value
doc: Note need of bc in the kernel build from 3.10 onwards
mm: Fix printk typo in dmapool.c
modpost: Fix comment typo "Modules.symvers"
Kconfig.debug: Grammar s/addition/additional/
wimax: Spelling s/than/that/, wording s/destinatary/recipient/
aic7xxx: Spelling s/termnation/termination/
arm64: mm: Remove superfluous "the" in comment
of: Spelling s/anonymouns/anonymous/
dma: imx-sdma: Spelling s/determnine/determine/
ath10k: Improve grammar in comments
ath6kl: Spelling s/determnine/determine/
of: Improve grammar for of_alias_get_id() documentation
drm/exynos: Spelling s/contro/control/
radio-bcm2048.c: fix wrong overflow check
doc: printk-formats: do not mention casts for u64/s64
doc: spelling error changes
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Fixed multiple spelling errors.
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Carlos E. Garcia <carlos@cgarcia.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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'spi/topic/fsl-espi' and 'spi/topic/id-const' into spi-next
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Make FSL eSPI CSnBEF and CSnAFT fields in ESPI_SPMODEn registers
(n=0,1,2,3) configurable through device tree.
CSnBEF is the chip select setup time. It's the delay in bits from the
activation of chip select pin to the first clock for data frame.
CSnAFT is the chip select hold time. It's the delay in bits from the
last clock for data frame to the deactivation of chip select pin.
The FSL eSPI driver hardcodes CSnBEF and CSnAFT to 0. Need to set
them to a different value for some device.
Signed-off-by: Jane Wan <Jane.Wan@gainspeed.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/cadence' into spi-next
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Add spi-cadence bindings documentation.
Signed-off-by: Harini Katakam <harinik@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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add optional property devicetree for SPI slave nodes
into devicetree so that LSB mode can be enabled by devicetree.
Signed-off-by: Zhao Qiang <B45475@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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If "efm32,location" property is not provided, keeping what is already
configured in the hardware, so its either the reset default 0 or whatever
the bootloader did.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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into spi-next
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Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/ti-qspi', 'spi/topic/ti-ssp', 'spi/topic/topcliff-pch', 'spi/topic/txx9', 'spi/topic/xcomm' and 'spi/topic/xfer' into spi-next
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The older Allwinner SoCs (A10, A13, A10s and A20) all have the same SPI
controller.
Unfortunately, this SPI controller, even though quite similar, is significantly
different from the recently supported A31 SPI controller (different registers
offset, split/merged registers, etc.). Supporting both controllers in a single
driver would be unreasonable, hence the addition of a new driver.
Like its more recent counterpart, it supports DMA, but the driver only does PIO
until we have a dmaengine driver for this platform.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The Allwinner A31 has a new SPI controller IP compared to the older Allwinner
SoCs.
It supports DMA, but the driver only does PIO for now, and DMA will be
supported eventually.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/sh-hspi', 'spi/topic/sh-msiof', 'spi/topic/sh-sci', 'spi/topic/sirf' and 'spi/topic/spidev' into spi-next
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It's not implemented in the driver, so it's a bad example.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Add support for the MSIOF variant in the R-Car H2 (r8a7790) and M2
(r8a7791) SoCs.
Binding documentation:
- Add future-proof "renesas,msiof-<soctype>" compatible values,
- The default for "renesas,rx-fifo-size" is 256 on R-Car H2 and M2,
- "renesas,tx-fifo-size" and "renesas,rx-fifo-size" are deprecated for
soctype-specific bindings,
- Add example bindings.
Implementation:
- MSIOF on R-Car H2 and M2 requires the transmission of dummy data if
data is being received only (cfr. "Set SICTR.TSCKE to 1" and "Write
dummy transmission data to SITFDR" in paragraph "Transmit and Receive
Procedures" of the Hardware User's Manual).
- As RX depends on TX, MSIOF on R-Car H2 and M2 also lacks the RSCR
register (Receive Clock Select Register), and some bits in the RMDR1
(Receive Mode Register 1) and TMDR2 (Transmit Mode Register 2)
registers.
- Use the recently introduced SPI_MASTER_MUST_TX flag to enable support
for dummy transmission in the SPI core, and to differentiate from other
MSIOF implementations in code paths that need this.
- New DT compatible values ("renesas,msiof-r8a7790" and
"renesas,msiof-r8a7791") are added, as well as new platform device
names ("spi_r8a7790_msiof" and "spi_r8a7791_msiof").
- The default RX FIFO size is 256 words on R-Car H2 and M2.
This is loosely based on a set of patches from Takashi Yoshii
<takasi-y@ops.dti.ne.jp>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Documentation:
- Add missing "interrupt-parent", "#address-cells", "#size-cells", and
"clocks" properties,
- Add missing default values for "num-cs", "renesas,tx-fifo-size" and
"renesas,rx-fifo-size",
- Add a reference to the pinctrl documentation.
Implementation:
- As "num-cs" is marked optional, provide a sensible default.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Mark Brown <broonie@linaro.org>
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- Add future-proof "renesas,hspi-<soctype>" compatible values,
- Add missing "interrupt-parent", "#address-cells", and "#size-cells"
properties,
- Add reference to pinctrl documentation,
- Add example bindings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/omap2', 'spi/topic/orion', 'spi/topic/pl022', 'spi/topic/qup', 'spi/topic/rspi' and 'spi/topic/s3c24xx' into spi-next
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Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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List full example compatible properties with soctypes instead of just the
soctypes, so checkpatch can validate DTSes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The Qualcomm Universal Peripheral (QUP) core is an
AHB slave that provides a common data path (an output
FIFO and an input FIFO) for serial peripheral interface
(SPI) mini-core.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/efm32', 'spi/topic/ep93xx', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/fsl-espi' and 'spi/topic/gpio' into spi-next
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Freescale DSPI module will have two endianess in different platform,
but ARM is little endian. So when DSPI in big endian, core in little endian,
readl and writel can not adjust R/W register in this condition.
This patch will remove general readl/writel, and import regmap mechanism.
Data endian will be transfered in regmap APIs.
Documents: dspi add bool "big-endian" in dts node if DSPI module
work in big endian.
Signed-off-by: Chao Fu <b44548@freescale.com>
Reviewed-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Wolfram Sang pointed out that "efm32,$device" is non-standard. So use the
common scheme and prefix device with "efm32-". The old compatible string
is left in place until arch/arm/boot/dts/efm32* is fixed.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
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While reviewing an i2c driver for efm32 that needs a similar property
Wolfram Sang pointed out that "location" is a too generic name for
something that is efm32 specific. So add an appropriate namespace and
fall back to the generic name in case of failure.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Document the clock properties required by the spi-atmel driver.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A respun version of the merges for the pull request previously sent
with a few additional fixes. The last two merges were fixed up by
hand since the branches have moved on and currently have the prior
merge in them.
Quite a busy release for the SPI subsystem, mostly in cleanups big and
small scattered through the stack rather than anything else:
- New driver for the Broadcom BC63xx HSSPI controller
- Fix duplicate device registration for ACPI
- Conversion of s3c64xx to DMAEngine (this pulls in platform and DMA
changes upon which the transiton depends)
- Some small optimisations to reduce the amount of time we hold locks
in the datapath, eliminate some redundant checks and the size of a
spi_transfer
- Lots of fixes, cleanups and general enhancements to drivers,
especially the rspi and Atmel drivers"
* tag 'spi-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (112 commits)
spi: core: Fix transfer failure when master->transfer_one returns positive value
spi: Correct set_cs() documentation
spi: Clarify transfer_one() w.r.t. spi_finalize_current_transfer()
spi: Spelling s/finised/finished/
spi: sc18is602: Convert to use bits_per_word_mask
spi: Remove duplicate code to set default bits_per_word setting
spi/pxa2xx: fix compilation warning when !CONFIG_PM_SLEEP
spi: clps711x: Add MODULE_ALIAS to support module auto-loading
spi: rspi: Add missing clk_disable() calls in error and cleanup paths
spi: rspi: Spelling s/transmition/transmission/
spi: rspi: Add support for specifying CPHA/CPOL
spi/pxa2xx: initialize DMA channels to -1 to prevent inadvertent match
spi: rspi: Add more QSPI register documentation
spi: rspi: Add more RSPI register documentation
spi: rspi: Remove dependency on DMAE for SHMOBILE
spi/s3c64xx: Correct indentation
spi: sh: Use spi_sh_clear_bit() instead of open-coded
spi: bitbang: Grammar s/make to make/to make/
spi: sh-hspi: Spelling s/recive/receive/
spi: core: Improve tx/rx_nbits check comments
...
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'spi/topic/s3c24xx', 'spi/topic/s3c64xx', 'spi/topic/sh', 'spi/topic/tegra114', 'spi/topic/tegra20-sflash', 'spi/topic/tegra20-slink', 'spi/topic/txx9' and 'spi/topic/xcomm' into spi-linus
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These update binding information for ti qspi controller.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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'spi/topic/hspi', 'spi/topic/mpc512x', 'spi/topic/msiof', 'spi/topic/nuc900', 'spi/topic/oc-tiny', 'spi/topic/omap', 'spi/topic/orion' and 'spi/topic/pci' into spi-linus
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Commit 743179849015 (of_spi: add generic binding support to specify cs gpio)
introduced generic binding for gpio chip-select. The cs_gpio struct field,
however, is an internal implementation detail of the Linux SPI subsystem, and
should not be mentioned in the device tree binding documentation. Mention the
previously defined cs-gpios master node property instead.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Update all the Tegra DT bindings to require the standard dmas/dma-names
properties rather than non-standard nvidia,dma-request-selector property.
This is a DT-ABI-incompatible change. It is the second of two changes
required for me to consider the Tegra DT bindings as stable, the other
being the previous conversion to the common reset bindings.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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