Commit Graph

237 Commits

Author SHA1 Message Date
Mark Brown
e2a3b0df8d Merge remote-tracking branches 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/slave' into spi-next 2017-02-19 16:41:05 +00:00
Mark Brown
2016d52a38 Merge remote-tracking branches 'spi/topic/imx', 'spi/topic/lantiq-ssc', 'spi/topic/mpc52xx', 'spi/topic/ppc4xx' and 'spi/topic/pxa2xx' into spi-next 2017-02-19 16:41:01 +00:00
Hauke Mehrtens
17f84b793c spi: lantiq-ssc: add support for Lantiq SSC SPI controller
This driver supports the Lantiq SSC SPI controller in master
mode. This controller is found on Intel (former Lantiq) SoCs like
the Danube, Falcon, xRX200, xRX300.

The hardware uses two hardware FIFOs one for received and one for
transferred bytes. When the driver writes data into the transmit FIFO
the complete word is taken from the FIFO into a shift register. The
data from this shift register is then written to the wire. This driver
uses the interrupts signaling the status of the FIFOs and not the shift
register. It is also possible to use the interrupts for the shift
register, but they will send a signal after every word. When using the
interrupts for the shift register we get a signal when the last word is
written into the shift register and not when it is written to the wire.
After all FIFOs are empty the driver busy waits till the hardware is
not busy any more and returns the transfer status.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-14 17:10:40 +00:00
Brian Norris
23e291c2e4 spi: rockchip: support "sleep" pin configuration
In the pattern of many other devices, support a system-sleep pin
configuration.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-12-19 13:29:27 +00:00
Simon Horman
4286db8456 spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings
In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 2 and Gen 3. But beyond that it's not clear what the
relationship between IP blocks might be. For example, I believe that
r8a7790 is older than r8a7791 but that doesn't imply that the latter is a
descendant of the former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme is being adopted for
drivers for Renesas SoCs.

Also:
* Deprecate renesas,sh-msiof. It seems poorly named as it is only
  compatible with SH-Mobile. It also appears unused in mainline.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-12-14 17:38:18 +00:00
Mark Brown
fafd679407 Merge remote-tracking branches 'spi/topic/spidev', 'spi/topic/sunxi', 'spi/topic/ti-qspi', 'spi/topic/topcliff-pch' and 'spi/topic/xlp' into spi-next 2016-12-12 15:54:20 +00:00
Mark Brown
830d705f26 Merge remote-tracking branches 'spi/topic/fsl-lpspi', 'spi/topic/imx', 'spi/topic/jcore' and 'spi/topic/omap' into spi-next 2016-12-12 15:54:14 +00:00
Mark Brown
0afa0724df Merge remote-tracking branches 'spi/topic/armada', 'spi/topic/ath79', 'spi/topic/atmel' and 'spi/topic/axi' into spi-next 2016-12-12 15:54:05 +00:00
Romain Perier
4049537742 spi: armada-3700: Add documentation for the Armada 3700 SPI Controller
This adds the devicetree bindings documentation for the SPI controller
present in the Marvell Armada 3700 SoCs.

Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-12-08 16:05:34 +00:00
Gao Pan
a17efbc5ef spi: imx: add devicetree binding for lpspi
Add a binding document for lpspi driver

Signed-off-by: Gao Pan <pandy.gao@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-23 12:37:29 +00:00
Geert Uytterhoeven
eb51cffa74 spi: sh-msiof: Add support for R-Car M3-W
MSIOF in R-Car M3-W (r8a7796) is handled fine by the existing driver.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-21 18:30:36 +00:00
Milo Kim
8ea7ce9cc6 spi: sun6i: Add binding for Allwinner H3 SPI controller
H3 SPI has same architecture as A31 except FIFO capacity.
To configure the buffer size separately, compatible property should be
different. Optional DMA specifiers and example are added.

Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-02 14:58:59 -06:00
Linus Torvalds
878fb5dc96 DeviceTree updates for 4.9:
- Update changeset documentation on locking to reflect current code
 
 - Fix alphabetizing of vendor-prefixes.txt
 
 - Add various vendor prefixes
 
 - Add ESP8089 WiFi binding
 
 - Add new variable sized array parsing functions
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Merge tag 'devicetree-for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - update changeset documentation on locking to reflect current code

 - fix alphabetizing of vendor-prefixes.txt

 - add various vendor prefixes

 - add ESP8089 WiFi binding

 - add new variable sized array parsing functions

* tag 'devicetree-for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (21 commits)
  DT: irqchip: renesas-irqc: document R8A7743/5 support
  dt-bindings: Add Keith&Koep vendor prefix
  dt-bindings: add vendor prefix for Auvidea GmbH
  of: Add vendor prefix for Engicam s.r.l company
  devicetree: Add vendor-prefix for Silead Inc.
  devicetree: bindings: Add vendor prefix for Topeet.
  dt-bindings: Add summit vendor id
  of/platform: Initialise dev->fwnode appropriately
  of: Add array read functions with min/max size limits
  of: Make of_find_property_value_of_size take a length range
  dt: net: enhance DWC EQoS binding to support Tegra186
  bindings: PCI: artpec: correct pci binding example
  Documentation: devicetree: Fix max77693 spelling errors
  dt: bindings: Add binding for ESP8089 wifi chips
  PCI: Xilinx NWL PCIe: Updating device tree documentation with prefetchable memory space
  Documentation: devicetree: spi: fix wrong spi-bus documentation
  dt-bindings: Add Japan Display Inc vendor id
  dt-bindings: vendor-prefixes: Add Sierra Wireless
  devicetree: Add vendor prefix for Shenzhen Sunchip Technology Co., Ltd
  devicetree: Sort vendor prefixes in alphabetical order
  ...
2016-10-05 11:56:38 -07:00
Mark Brown
e2df04ed3b Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/imx', 'spi/topic/jcore', 'spi/topic/loopback' and 'spi/topic/meson' into spi-next 2016-09-30 09:14:10 -07:00
Kamal Dasu
5fc78f4c84 spi: Broadcom BRCMSTB, NSP, NS2 SoC bindings
Added device tree bindings documentation for BRCMSTB, NSP, NS2 iProc
SoCs supported by spi-bcm-qspi, spi-brcmstb-qspi and spi-iproc-qspi driver.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-14 18:03:32 +01:00
Neil Armstrong
164c5cd5ff spi: meson: Add GXBB Compatible string
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-12 20:11:20 +01:00
Guenther Wutz
c4dcd205eb Documentation: devicetree: spi: fix wrong spi-bus documentation
This patch adds missing commas to the spi-bus documentation of the
cs-gpio lines.

The device tree compiler fails if chip select lines are not
comma-separated. Fix the erroneous documentation by adding missing
commas.

Signed-off-by: Guenther Wutz <info@gunibert.de>
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-08-30 17:07:46 -05:00
Rich Felker
7ed66c6d88 spi: jcore: add J-Core SPI master bindings
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:56:32 +01:00
Mark Brown
9a4506b60d Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/rockchip', 'spi/topic/s3c64xx', 'spi/topic/sh' and 'spi/topic/sh-msiof' into spi-next 2016-07-24 22:08:25 +01:00
Mark Brown
ac3e62b820 Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/omap2-mcspi', 'spi/topic/orion', 'spi/topic/pic32' and 'spi/topic/pic32-sqi' into spi-next 2016-07-24 22:08:22 +01:00
Mark Brown
e350817b7c Merge remote-tracking branches 'spi/topic/flash-dma', 'spi/topic/imx', 'spi/topic/loopback', 'spi/topic/maintainers' and 'spi/topic/mpc52xx-psc' into spi-next 2016-07-24 22:08:20 +01:00
Mark Brown
ea9972df79 Merge remote-tracking branches 'spi/topic/bfin-sport', 'spi/topic/bfin5xx', 'spi/topic/clps711x', 'spi/topic/doc' and 'spi/topic/dt' into spi-next 2016-07-24 22:08:18 +01:00
Andi Shyti
1ada32ede9 spi: s3c64xx: document the clocks and the clock-name property
These two properties were not documented but used in the spi
dts. Add the related documentation.

Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-14 17:28:20 +01:00
Andi Shyti
c068042bf0 spi: s3c64xx: add exynos5433 spi compatible
The samsung,exynos5433-spi has some peculiarities that bring the
need of creating a new compatible in the binding.

One of those is the 3-clocks controller management where the spi
is fed with three clocks: "spi", "busclkN" and "ioclk".

By adding the exynos5433-spi, we deprecate the exynos7 compatible
and discourage its use.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-14 17:28:11 +01:00
Arnd Bergmann
ea2ff61ba3 spi: add binding for clps711x SPI
This documents the binding used by Alexander Shiyan's DT support for
the clps711x SPI controller.

I've left the file name to match the ARM platform port name "clps711x"
for consistency with the other bindings, even though the compatible
string refers to the later ep7309 chip.

Linux no longer supports the old clps711x and ep72xx product lines,
but we still use the name. The entire family is now discontinued
by the manufacturer.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-07 11:44:45 +02:00
Andi Shyti
a92e7c3d82 spi: s3c64xx: consider the case when the CS line is not connected
When the CS line is not connected, it is not needed to enable or
disable the chip selection functionality from the s3c64xx
devices in order to perform a transfer.
Set the CS controller logically always enabled already during
initialization (by writing '0' in the S3C64XX_SPI_SLAVE_SEL
register) and never disable it.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-29 22:45:23 +01:00
Masanari Iida
0fb7620fba spi: Fix typo in devicetree/bindings/spi
This patch fix spelling typos found in
Documentation/devicetree/bingings/spi.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-28 20:35:48 +01:00
Geert Uytterhoeven
a777059a3f spi: Improve DT binding documentation
- Add missing verbs and periods,
  - Add spaces before opening parentheses,
  - Align list layout,
  - Correct grammar,
  - Move "cs-gpios" from the required to the optional properties
    section,
  - Remove spaces before tabs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-22 13:51:04 +01:00
Alexander Shiyan
956fff7189 spi: imx: Update DT binding documentation
Mark "fsl,spi-num-chipselects" property as obsolete.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-14 10:19:50 +01:00
Caesar Wang
1eb1c5dc60 spi/rockchip: add rk3036/rk3228/rk3368 SoCs for spi document
We had supported the rk3036/rk3066/rk3188/rk3228/rk3288/rk3368/rk3399
family SoCs in linux kernel.

Let's add the other SoCs, in order to a better understanding from the
rockchip spi document.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-31 17:05:01 +01:00
Stefan Roese
b3c195b3a7 spi: orion: Add direct access mode
This patch adds support for the direct access mode to the Orion SPI
driver which is used on the Marvell Armada based SoCs. In this direct
mode, all data written to (or read from) a specifically mapped MBus
window (linked to one SPI chip-select on one of the SPI controllers)
will be transferred directly to the SPI bus. Without the need to control
the SPI registers in between. This can improve the SPI transfer rate in
such cases.

Both, direct-read and -write mode are supported. But only the write
mode has been tested. This mode especially benefits from the SPI direct
mode, as the data bytes are written head-to-head to the SPI bus,
without any additional addresses.

One use-case for this direct write mode is, programming a FPGA bitstream
image into the FPGA connected to the SPI bus at maximum speed.

This mode is described in chapter "22.5.2 Direct Write to SPI" in the
Marvell Armada XP Functional Spec Datasheet.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-30 17:01:20 +01:00
Linus Torvalds
a56f489502 spi: Updates for v4.7
Another quiet release for SPI, almost entirely driver specific changes
 with the diffstat dominated by two new drivers which are about two
 thirds of it in terms of lines of code:
 
  - New drivers for PIC32 standard and SQI controllers.
  - The Cadence driver has had runtime PM support added and quite a few
    fixes and cleanups.
  - The flash-specific accelerated path support now has a feature query
    interface.
  - The pxa2xx driver has been moved to use the core DMA mapping support.
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Merge tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "Another quiet release for SPI, almost entirely driver specific changes
  with the diffstat dominated by two new drivers which are about two
  thirds of it in terms of lines of code:

   - new drivers for PIC32 standard and SQI controllers
   - the Cadence driver has had runtime PM support added and quite a few
     fixes and cleanups
   - flash-specific accelerated path support now has a feature query
     interface
   - the pxa2xx driver has been moved to use the core DMA mapping support"

* tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (48 commits)
  spi: pic32-sqi: Fix linker error, undefined reference to `bad_dma_ops'
  spi: dw-pci: Spelling s/paltforms/platforms/g
  spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanup
  spi: Fix simple typo s/impelment/implement
  spi: rockchip: potential NULL dereference on error
  spi: zynqmp: disable clocks in error paths
  spi: Drop unnecessary dependencies on relaxed I/O accessors
  spi: qup: Add spi_master_put in remove function
  spi: qup: Handle clocks in pm_runtime suspend and resume
  spi: st-ssc4: Fix missing spi_master_put in spi_st_probe error paths
  spi: st-ssc4: Allow compile test build
  spi: omap2-mcspi: Use dma_request_chan() for requesting DMA channel
  spi: davinci: Use dma_request_chan() for requesting DMA channel
  spi: pic32: Fix checking return value of devm_ioremap_resource
  spi: spi-fsl-dspi: Update DT binding documentation
  spi: Drop duplicate code to set master->dev.parent
  spi: pic32: Set proper bits_per_word_mask
  spi: return error if kmap'd buffers passed to spi_map_buf()
  spi: core: add hook flash_read_supported to spi_master
  spi: pic32-sqi: silence array overflow warning
  ...
2016-05-24 11:12:32 -07:00
Mark Brown
b340941af9 Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/omap2-mcspi', 'spi/topic/orion', 'spi/topic/pic32' and 'spi/topic/pic32-qspi' into spi-next 2016-05-23 12:16:51 +01:00
Mark Brown
c36581c9a5 Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/flash-read', 'spi/topic/fsl-dspi', 'spi/topic/fsl-espi' and 'spi/topic/kconfig' into spi-next 2016-05-23 12:16:48 +01:00
Linus Torvalds
2ec3240fd7 ARM: 64-bit DT updates for v4.7
We continue ramping up platform support for 64-bit ARM machines,
 with 111 individual non-merge changesets touching 21 platforms.
 
 The LG1312 platform is completely new and is the first ARM
 platform by LG that we support in the mainline kernel. Two other
 SoCs got added that are updated versions of existing SoC
 families, so the port mainly consists of new dts files:
 - The Hisilicon Hip06/D03 is the latest server platform
   from Huawei/Hisilicon, and follows the Hip05/D02 platform.
 - Rockchip RK3399 follows the 32-bit RK3288 that is popular
   in low-end Chromebooks and the 64-bit RK3368 that is mainly
   found in chinese Android TV boxes.
 
 The 96Boards HiKey based on the Hisilicon Hi6220 (Kirin 620)
 gets a long-awaited overhaul with a lot of devices enabled in
 the DT, so it should be much more usable with a mainline kernel
 now. See also
 https://plus.google.com/111524780435806926688/posts/PeGb2VsNhJd
 
 A lot of work went into enabling new device drivers on existing
 machines, but we also have a couple of new commercially
 available machines:
 
 - Google Pixel C laptop based on Tegra210
 - Hardkernel Odroid C2 Based on Amlogic Meson GXBB (S905)
 - Geekbuying GeekBox based on Rockchip RK3368
 
 And finally, a couple of reference or development platforms
 that are not end-user platforms but are used for trying out
 the respective SoC platforms:
 
 - Amlogic Meson GXBB P200 and P201 development systems
 - NXP Layerscape 1043A QDS development board
 - Hisilicon Hip06 D03 server board, as mentioned above
 - LG1312 Reference Design
 - RK3399 Evaluation Board
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Merge tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM 64-bit DT updates from Arnd Bergmann:
 "We continue ramping up platform support for 64-bit ARM machines, with
  111 individual non-merge changesets touching 21 platforms.

  The LG1312 platform is completely new and is the first ARM platform by
  LG that we support in the mainline kernel.  Two other SoCs got added
  that are updated versions of existing SoC families, so the port mainly
  consists of new dts files:

   - The Hisilicon Hip06/D03 is the latest server platform from
     Huawei/Hisilicon, and follows the Hip05/D02 platform.

   - Rockchip RK3399 follows the 32-bit RK3288 that is popular in
     low-end Chromebooks and the 64-bit RK3368 that is mainly found in
     chinese Android TV boxes.

  The 96Boards HiKey based on the Hisilicon Hi6220 (Kirin 620) gets a
  long-awaited overhaul with a lot of devices enabled in the DT, so it
  should be much more usable with a mainline kernel now.  See also

     https://plus.google.com/111524780435806926688/posts/PeGb2VsNhJd

  A lot of work went into enabling new device drivers on existing
  machines, but we also have a couple of new commercially available
  machines:

   - Google Pixel C laptop based on Tegra210
   - Hardkernel Odroid C2 Based on Amlogic Meson GXBB (S905)
   - Geekbuying GeekBox based on Rockchip RK3368

  And finally, a couple of reference or development platforms that are
  not end-user platforms but are used for trying out the respective SoC
  platforms:

   - Amlogic Meson GXBB P200 and P201 development systems
   - NXP Layerscape 1043A QDS development board
   - Hisilicon Hip06 D03 server board, as mentioned above
   - LG1312 Reference Design
   - RK3399 Evaluation Board"

* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (104 commits)
  arm64: dts: marvell: add XOR node for Armada 3700 SoC
  dt-bindings: document rockchip rk3399-evb board
  arm64: dts: rockchip: add dts file for RK3399 evaluation board
  arm64: dts: rockchip: add core dtsi file for RK3399 SoCs
  dt-bindings: rockchip-dw-mshc: add description for rk3399
  arm64: dts: marvell: Use a SoC-specific compatible for xHCI on Armada37xx
  arm64: dts: marvell: Rename armada-37xx USB node
  arm64: dts: marvell: Clean up armada-3720-db
  Documentation: arm64: Add Hisilicon Hip06 D03 dts binding
  arm64: dts: Add initial dts for Hisilicon Hip06 D03 board
  arm64: dts: hip05: Add nor flash support
  arm64: dts: hip05: fix its node without msi-cells
  arm64: dts: r8a7795: Don't disable referenced optional clocks
  arm64: dts: salvator-x: populate EXTALR
  arm64: dts: r8a7795: enable PCIe on Salvator-X
  arm64: dts: r8a7795: Add PCIe nodes
  arm64: tegra: Add IOMMU node to GM20B on Tegra210
  arm64: tegra: Add reference clock to GM20B on Tegra210
  dt-bindings: Add documentation for GM20B GPU
  dt-bindings: gk20a: Document iommus property
  ...
2016-05-18 12:58:39 -07:00
Yuan Yao
c145344763 spi: spi-fsl-dspi: Update DT binding documentation
DSPI driver support the register on the controller with big endian
mode R/W. But not use the regmap API.
So update the binding documentation for "big-endian".

Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-27 16:26:29 +01:00
Vignesh R
b7a1922814 ARM: dts: dra7x: Support QSPI MODE-0 operation at 64MHz
According to Data Manual(SPRS915P) of AM57x, TI QSPI controller on
DRA74(rev 1.1+)/DRA72 EVM can support up to 64MHz in MODE-0, whereas
MODE-3 is limited to 48MHz. Hence, switch to MODE-0 for better
throughput.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-26 10:52:19 -07:00
Purna Chandra Mandal
0a4afaae98 spi: pic32-sqi: add binding document for PIC32 Quad-SPI driver.
Document Device tree bindings for the quad SPI peripheral
found on Microchip PIC32 class devices.

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Acked-by: Rob Herring <rob@kernel.org>

Cc: Kumar Gala <galak@codeaurora.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-18 17:52:46 +01:00
Yuan Yao
6f1060e338 Documentation: fsl: dspi: Add fsl,ls2080a-dspi compatible string
new compatible string: "fsl,ls2080a-dspi".

Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-04-13 10:22:08 +08:00
Purna Chandra Mandal
120e8989eb spi: pic32: Add bindings for PIC32 SPI peripheral
Document the devicetree bindings for the SPI peripheral found
on Microchip PIC32 class devices.

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-04 10:04:23 -07:00
Linus Torvalds
10fdfee7f7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "The most notable item is addition of support for Synaptics RMI4
  protocol which is native protocol for all current Synaptics devices
  (touchscreens, touchpads).  In later releases we'll switch devices
  using HID and PS/2 protocol emulation to RMI4.

  You will also get:
   - BYD PS/2 touchpad protocol support for psmouse
   - MELFAS MIP4 Touchscreen driver
   - rotary encoder was moved away from legacy platform data and to
     generic device properties API, devm_* API, and can now handle
     encoders using more than 2 GPIOs
   - Cypress touchpad driver was switched to devm_* API and device
     properties
   - other assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props
  Input: synaptics-rmi4 - using logical instead of bitwise AND
  Input: powermate - fix oops with malicious USB descriptors
  Input: snvs_pwrkey - fix returned value check of syscon_regmap_lookup_by_phandle()
  MAINTAINERS: add devicetree bindings to Input Drivers section
  Input: synaptics-rmi4 - add device tree support to the SPI transport driver
  Input: synaptics-rmi4 - add SPI transport driver
  Input: synaptics-rmi4 - add support for F30
  Input: synaptics-rmi4 - add support for F12
  Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
  Input: synaptics-rmi4 - add support for 2D sensors and F11
  Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
  Input: synaptics-rmi4 - add I2C transport driver
  Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
  Input: ad7879 - add device tree support
  Input: ad7879 - fix default x/y axis assignment
  Input: ad7879 - move header to platform_data directory
  Input: ts4800 - add hardware dependency
  Input: cyapa - fix for losing events during device power transitions
  Input: sh_keysc - remove dependency on SUPERH
  ...
2016-03-17 21:51:52 -07:00
Dmitry Torokhov
245f0db0de Linux 4.5
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Merge tag 'v4.5' into next

Merge with Linux 4.5 to get PROPERTY_ENTRY_INTEGER() that is needed to
fix pxa/raumfeld rotary encoder properties.
2016-03-15 16:54:45 -07:00
Mark Brown
c508709bcf Merge remote-tracking branches 'spi/topic/res', 'spi/topic/rockchip', 'spi/topic/sh', 'spi/topic/ti-qspi' and 'spi/topic/xilinx' into spi-next 2016-03-11 14:28:53 +07:00
Mark Brown
b9facea19b Merge remote-tracking branches 'spi/topic/lp8841', 'spi/topic/msg', 'spi/topic/pl022' and 'spi/topic/pxa2xx' into spi-next 2016-03-11 14:28:43 +07:00
Andrew Duggan
48147b9768 Input: synaptics-rmi4 - add device tree support to the SPI transport driver
Add devicetree binding for SPI devices.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:25 -08:00
Shubhrajyoti Datta
82b3aea65f spi: xilinx: Add devicetree binding for spi-xilinx
Add a binding document for the spi/spi-xilinx

Signed-off-by: Shubhrajyoti Datta <shubhraj@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-10 10:31:21 +07:00
Sergei Ianovich
7ecbfff671 spi: master driver to enable RTC on ICPDAS LP-8841
ICP DAS LP-8841 contains a DS-1302 RTC. This driver provides an SPI
master which makes the RTC usable. The driver is not supposed to work
with anything else.

The driver uses the standard MicroWire half-duplex transfer timing.
Master output is set on low clock and sensed by the RTC on the rising
edge. Master input is set by the RTC on the trailing edge and is sensed
by the master on low clock.

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-24 13:09:08 +09:00
Xu Jianqun
9b7a562215 spi: rockchip: add bindings for rk3399 spi
Add devicetree bindings for Rockchip rk3399 spi which found on
Rockchip rk3399 SoCs.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-18 11:24:15 +00:00
Lars-Peter Clausen
2ec3b6287b spi: axi: Add bindings documentation for Analog Devices axi-spi-engine
Add the devicetree bindings documentation for the Analog Devices
axi-spi-engine SPI master peripheral. This is a soft-peripheral used in
FPGAs.

The external interfaces of the peripheral are:
	* A memory mapped register map which is used to configure the
	  peripheral.
	* One interrupt.
	* Two clocks, one for the memory mapped register interface and one
	  for the SPI bus.
	* A SPI master interface to which the slave devices are connected.

These interfaces are described by the devicetree bindings accordingly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-05 18:12:47 +00:00
Linus Torvalds
6d1c244803 ARM: DT updates for v4.5
As usual, the bulk of this release is again DT file contents.
 
 There's a huge number of changes here, and it's challenging to give a crisp
 overview of just what is in here. To start with:
 
 New boards:
 
 - TI-based DM3730 from LogicPD (Torpedo)
 - Cosmic+ M4 (nommu) initial support (Freescale Vybrid)
 - Raspberry Pi 2 DT files
 - Watchdog on Meson8b
 - Veyron-mickey (ASUS Chromebit) DTS
 - Rockchip rk3228 SoC and eval board
 - Sigma Designs Tango4
 
 Improvements:
 
 - Improved support for Qualcomm APQ8084, including Sony Xperia Z DT files
 - Misc new devices for Rockchip rk3036 and rk3288
 - Allwinner updates for misc SoCs and systems
 
 ... and a _large_ number of other changes across the field. Devices
 added to SoC DTSI and board DTS files for a number of SoC vendors, new
 product boards on already-supported SoCs, cleanups and refactorings of
 existing DTS/DTSI files and a bunch of other changes.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Olof Johansson:
 "As usual, the bulk of this release is again DT file contents.

  There's a huge number of changes here, and it's challenging to give a
  crisp overview of just what is in here.  To start with:

  New boards:

   - TI-based DM3730 from LogicPD (Torpedo)
   - Cosmic+ M4 (nommu) initial support (Freescale Vybrid)
   - Raspberry Pi 2 DT files
   - Watchdog on Meson8b
   - Veyron-mickey (ASUS Chromebit) DTS
   - Rockchip rk3228 SoC and eval board
   - Sigma Designs Tango4

  Improvements:

   - Improved support for Qualcomm APQ8084, including Sony Xperia Z DT files
   - Misc new devices for Rockchip rk3036 and rk3288
   - Allwinner updates for misc SoCs and systems

  ... and a _large_ number of other changes across the field.  Devices
  added to SoC DTSI and board DTS files for a number of SoC vendors, new
  product boards on already-supported SoCs, cleanups and refactorings of
  existing DTS/DTSI files and a bunch of other changes"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (469 commits)
  ARM: dts: compulab: add new board description
  ARM: versatile: add the syscon LEDs to the DT
  dts: vt8500: Fix errors in SDHC node for WM8505
  ARM: dts: imx6q: clean up unused ipu2grp
  ARM: dts: silk: Add compatible property to "partitions" node
  ARM: dts: gose: Add compatible property to "partitions" node
  ARM: dts: porter: Add compatible property to "partitions" node
  ARM: dts: koelsch: Add compatible property to "partitions" node
  ARM: dts: lager: Add compatible property to "partitions" node
  ARM: dts: bockw: Add compatible property to "partitions" node
  ARM: dts: meson8b: Add watchdog node
  Documentation: watchdog: Add new bindings for meson8b
  ARM: meson: Add status LED for Odroid-C1
  ARM: dts: uniphier: fix a typo in comment block
  ARM: bcm2835: Add the auxiliary clocks to the device tree.
  ARM: bcm2835: Add devicetree for bcm2836 and Raspberry Pi 2 B
  ARM: bcm2835: Move the CPU/peripheral include out of common RPi DT.
  ARM: bcm2835: Split the DT for peripherals from the DT for the CPU
  ARM: realview: set up cache correctly on the PB11MPCore
  ARM: dts: Unify G2D device node with other devices on exynos4
  ...
2016-01-20 18:16:29 -08:00