Commit Graph

348 Commits

Author SHA1 Message Date
Linus Walleij
9dfe310ed5 hwmon: (gpio-fan) Move DT bindings to the right place
This moves the GPIO fan bindings to the hwmon bindings. The GPIO
fan is a hwmon class hardware, not related to GPIO other than being
a consumer of GPIOs.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-10-29 18:36:03 -07:00
Masahiro Yamada
1c59d04505 dt-bindings: gpio: uniphier: add UniPhier GPIO binding
This GPIO controller is used on UniPhier SoC family.

The vendor specific property "socionext,interrupt-ranges" is for
specifying interrupt mapping to the parent interrupt controller
because the mapping is not contiguous.  It works like "ranges",
but transforms "interrupts" instead of "reg".

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-10-23 10:36:58 +02:00
Lukas Wunner
c019c18da1 dt-bindings: gpio: max3191x: Document new driver
Add device tree bindings for Maxim MAX3191x industrial serializer.

Cc: Mathias Duckeck <m.duckeck@kunbus.de>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-10-19 22:35:59 +02:00
Alan Tull
07901a94f9 gpio: gpio-dwapb: add optional reset
Some platforms require reset to be released to allow register
access.

Signed-off-by: Alan Tull <atull@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
[Added DT bindings oneliner for standard reset binding]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-10-19 22:32:38 +02:00
Sergei Shtylyov
f76a2d9d7f gpio-rcar: document R8A77970 bindings
Renesas R-Car V3M (R8A77970) SoC also has the R-Car gen3 compatible GPIO
controllers, so document the SoC specific bindings.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-10-19 22:32:38 +02:00
Lars Poeschel
a157789b78 dt-bindings: pinctrl: Move mcp23s08 from gpio
The mcp23s08 driver was moved from gpio to pinctrl. This moves it's
devicetree binding doc as well. So driver and binding doc are in sync
again.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-10-11 10:01:04 +02:00
Linus Torvalds
74fee4e88f Merge tag 'devicetree-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
 "There's a few orphans in the conversion to %pOF printf specifiers
  included here that no one else picked up.

  Summary:

   - Convert more DT code to use of_property_read_* API.

   - Improve DT overlay support when adding multiple overlays

   - Convert printk's to %pOF format specifiers. Most went via subsystem
     trees, but picked up the remaining orphans

   - Correct unittests to use preferred "okay" for "status" property
     value

   - Add a KASLR seed property

   - Vendor prefixes for Mellanox, Theobroma System, Adaptrum, Moxa

   - Fix modalias buffer handling

   - Clean-up of include paths for building dtbs

   - Add bindings for amc6821, isl1208, tsl2x7x, srf02, and srf10
     devices

   - Add nvmem bindings for MediaTek MT7623 and MT7622 SoC

   - Add compatible string for Allwinner H5 Mali-450 GPU

   - Fix links to old OpenFirmware docs with new mirror on
     devicetree.org

   - Remove status property from binding doc examples"

* tag 'devicetree-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits)
  devicetree: Adjust status "ok" -> "okay" under drivers/of/
  dt-bindings: Remove "status" from examples
  dt-bindings: pinctrl: sh-pfc: Use generic node name
  dt-bindings: Add vendor Mellanox
  dt-binding: net/phy: fix interrupts description
  virt: Convert to using %pOF instead of full_name
  macintosh: Convert to using %pOF instead of full_name
  ide: pmac: Convert to using %pOF instead of full_name
  microblaze: Convert to using %pOF instead of full_name
  dt-bindings: usb: musb: Grammar s/the/to/, s/is/are/
  of: Use PLATFORM_DEVID_NONE definition
  of/device: Fix of_device_get_modalias() buffer handling
  of/device: Prevent buffer overflow in of_device_modalias()
  dt-bindings: add amc6821, isl1208 trivial bindings
  dt-bindings: add vendor prefix for Theobroma Systems
  of: search scripts/dtc/include-prefixes path for both CPP and DTC
  of: remove arch/$(SRCARCH)/boot/dts from include search path for CPP
  of: remove drivers/of/testcase-data from include search path for CPP
  of: return of_get_cpu_node from of_cpu_device_node_get if CPUs are not registered
  iio: srf08: add device tree binding for srf02 and srf10
  ...
2017-09-07 14:43:33 -07:00
Rob Herring
4da722ca19 dt-bindings: Remove "status" from examples
Pretty much any node can have a status property, so it doesn't need to
be in examples.

Converted with the following command and removed examples with SoC and
board specific splits:

git grep -l -E 'status.*=.*' Documentation/devicetree/ | xargs sed -i -E '/\sstatus.*=.*"(disabled|ok|okay)/d'

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-09-05 10:03:06 -05:00
Biju Das
33f5dc8468 gpio: rcar: Add r8a7745 (RZ/G1E) support
Renesas RZ/G1E (R8A7745) SoC GPIO blocks are identical to the R-Car Gen2
family. Add support for its GPIO controllers.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-22 15:39:04 +02:00
Andrew Jeffery
f8b89b5775 dt-bindings: gpio: aspeed: Remove reference to clock name
HPLL is in fact not the clock we need. Remove prescription of which clock to
avoid further error. Please refer to your datasheet and double check like I
should have.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-15 11:24:35 +02:00
Fabio Estevam
7ebc194d0f gpio: 74x164: Introduce 'enable-gpios' property
74HC595 has an /OE (output enable) pin that can be controlled by a GPIO.

Introduce an optional property called 'enable-gpios' that allows
controlling the /OE pin.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 16:24:02 +02:00
Keerthy
792afe6323 dt-bindings: gpio: davinci: Add keystone-k2g compatible
The patch adds keystone-k2g compatible, specific properties and
an example. The patch also adds the details of supported SoCs
for each compatible.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:03:39 +02:00
Dong Aisheng
8340e915ea dt-bindings: gpio-vf610: add imx7ulp support
The Rapid General-Purpose Input and Output with 2 Ports (RGPIO2P)
on MX7ULP is similar to GPIO on Vibrid, except it has an extra
Port Data Direction Register (PDDR) used to configure the individual
port pins for input or output.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:12 +02:00
Simon Horman
dbd1dad2ab gpio: rcar: add gen[123] fallback compatibility strings
Add fallback compatibility string for R-Car Gen 1, 2 and 3.

In the case of Renesas R-Car hardware we know that there are generations of
SoCs, f.e. Gen 1 and 2. But beyond that its 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 being adopted for
drivers for Renesas SoCs.

Also deprecate renesas,gpio-rcar as its name is more generic than its
implementation.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:12 +02:00
Jan Kiszka
a589e211bd gpio: exar: Use correct property prefix and document bindings
The device-specific property should be prefixed with the vendor name,
not "linux,", as Linus Walleij pointed out. Change this and document the
bindings of this platform device.

We didn't ship the old binding in a release yet. So we can still change
it without breaking an official API.

Fixes: 380b1e2f3a ("gpio-exar/8250-exar: Make set of exported GPIOs configurable")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-01 13:43:55 +02:00
Linus Torvalds
c7d28eca1d Merge tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.13 series.

  Some administrativa:

  I have a slew of 8250 serial patches and the new IOT2040 serial+GPIO
  driver coming in through this tree, along with a whole bunch of Exar
  8250 fixes. These are ACKed by Greg and also hit drivers/platform/*
  where they are ACKed by Andy Shevchenko.

  Speaking about drivers/platform/* there is also a bunch of ACPI stuff
  coming through that route, again ACKed by Andy.

  The MCP23S08 changes are coming in here as well. You already have the
  commits in your tree, so this is just a result of sharing an immutable
  branch between pin control and GPIO.

  Core:
   - Export add/remove for lookup tables so that modules can export GPIO
     descriptor tables.
   - Handle GPIO sleep states: it is now possible to flag that a GPIO
     line may loose its state during suspend/resume of the system to
     save power. This is used in the Wolfson Micro Arizona driver.
   - ACPI-based GPIO was tightened up a lot around the edges.
   - Use bitmap_fill() to speed up a loop.

  New drivers:
   - Exar XRA1403 SPI-based GPIO.
   - MVEBU driver now supports Armada 7K and 8K.
   - LP87565 PMIC GPIO.
   - Renesas R-CAR R8A7743 (RZ/G1M).
   - The new IOT2040 8250 serial/GPIO also comes in through this
     changeset.

  Substantial driver changes:
   - Seriously fix the Exar 8250 GPIO portions to work.
   - The MCP23S08 was moved out to a pin control driver.
   - Convert MEVEBU to use regmap for register access.
   - Drop Vulcan support from the Broadcom driver.
   - Serious cleanup and improvement of the mockup driver, giving us a
     better test coverage.

  Misc:
   - Lots of janitorial clean up.
   - A bunch of documentation fixes"

* tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (70 commits)
  serial: exar: Add support for IOT2040 device
  gpio-exar/8250-exar: Make set of exported GPIOs configurable
  platform: Accept const properties
  serial: exar: Factor out platform hooks
  gpio-exar/8250-exar: Rearrange gpiochip parenthood
  gpio: exar: Fix iomap request
  gpio-exar/8250-exar: Do not even instantiate a GPIO device for Commtech cards
  serial: uapi: Add support for bus termination
  gpio: rcar: Add R8A7743 (RZ/G1M) support
  gpio: gpio-wcove: Fix GPIO control register offset calculation
  gpio: lp87565: Add support for GPIO
  gpio: dwapb: fix missing first irq for edgeboth irq type
  MAINTAINERS: Take maintainership for GPIO ACPI support
  gpio: exar: Fix reading of directions and values
  gpio: exar: Allocate resources on behalf of the platform device
  gpio-exar/8250-exar: Fix passing in of parent PCI device
  gpio: mockup: use devm_kcalloc() where applicable
  gpio: mockup: add myself as author
  gpio: mockup: improve the error message
  gpio: mockup: don't return magic numbers from probe()
  ...
2017-07-07 12:40:27 -07:00
Linus Torvalds
dddd564dbb Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
 "This time we've got one core change to introduce a bulk clk_get API,
  some new clk drivers and updates for old ones. The diff is pretty
  spread out across a handful of different SoC clk drivers for Broadcom,
  TI, Qualcomm, Renesas, Rockchip, Samsung, and Allwinner, mostly due to
  the introduction of new drivers.

  Core:
   - New clk bulk get APIs
   - Clk divider APIs gained the ability to consider a different parent
     than the current one

  New Drivers:
   - Renesas r8a779{0,1,2,4} CPG/MSSR
   - TI Keystone SCI firmware controlled clks and OMAP4 clkctrl
   - Qualcomm IPQ8074 SoCs
   - Cortina Systems Gemini (SL3516/CS3516)
   - Rockchip rk3128 SoCs
   - Allwinner A83T clk control units
   - Broadcom Stingray SoCs
   - CPU clks for Mediatek MT8173/MT2701/MT7623 SoCs

  Removed Drivers:
   - Old non-DT version of the Realview clk driver

  Updates:
   - Renesas Kconfig/Makefile cleanups
   - Amlogic CEC EE clk support
   - Improved Armada 7K/8K cp110 clk support
   - Rockchip clk id exposing, critical clk markings
   - Samsung converted to clk_hw registration APIs
   - Fixes for Samsung exynos5420 audio clks
   - USB2 clks for Hisilicon hi3798cv200 SoC and video/camera clks for
     hi3660"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (147 commits)
  clk: gemini: Read status before using the value
  clk: scpi: error when clock fails to register
  clk: at91: Add sama5d2 suspend/resume
  gpio: dt-bindings: Add documentation for gpio controllers on Armada 7K/8K
  clk: keystone: TI_SCI_PROTOCOL is needed for clk driver
  clk: samsung: audss: Fix silent hang on Exynos4412 due to disabled EPLL
  clk: uniphier: provide NAND controller clock rate
  clk: hisilicon: add usb2 clocks for hi3798cv200 SoC
  clk: Add Gemini SoC clock controller
  clk: iproc: Remove __init marking on iproc_pll_clk_setup()
  clk: bcm: Add clocks for Stingray SOC
  dt-bindings: clk: Extend binding doc for Stingray SOC
  clk: mediatek: export cpu multiplexer clock for MT8173 SoCs
  clk: mediatek: export cpu multiplexer clock for MT2701/MT7623 SoCs
  clk: mediatek: add missing cpu mux causing Mediatek cpufreq can't work
  clk: renesas: cpg-mssr: Use of_device_get_match_data() helper
  clk: hi6220: add acpu clock
  clk: zx296718: export I2S mux clocks
  clk: imx7d: create clocks behind rawnand clock gate
  clk: hi3660: Set PPLL2 to 2880M
  ...
2017-07-07 12:26:13 -07:00
Linus Torvalds
ac7b75966c Merge tag 'pinctrl-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
 "This is the big bulk of pin control changes for the v4.13 series:

  Core:
   - The documentation is moved over to RST.
   - We now have agreed bindings for enabling input and output buffers
     without actually enabling input and/or output on a pin. We are
     chiseling out some details of pin control electronics.

  New drivers:
   - ZTE ZX
   - Renesas RZA1
   - MIPS Ingenic JZ47xx: also switch over existing drivers in the tree
     to use this pin controller and consolidate earlier spread out code.
   - Microschip MCP23S08: this driver is migrated from the GPIO
     subsystem and totally rewritten to use proper pin control. All
     users are switched over.

  New subdrivers:
   - Renesas R8A7743 and R8A7745.
   - Allwinner Sunxi A83T R_PIO.
   - Marvell MVEBU Armada CP110 and AP806.
   - Intel Cannon Lake PCH.
   - Qualcomm IPQ8074.

  Notable improvements:
   - IRQ support on the Marvell MVEBU Armada 37xx.
   - Meson driver supports HDMI CEC, AO, I2S, SPDIF and PWM.
   - Rockchip driver now supports iomux-route switching for RK3228,
     RK3328 and RK3399.
   - Rockchip A10 and A20 are merged into a single driver.
   - STM32 has improved GPIO support.
   - Samsung Exynos drivers are split per ARMv7 and ARMv8.
   - Marvell MVEBU is converted to use regmap for register access.

  Maintenance:
   - Several Renesas SH-PFC refactorings and updates.
   - Serious code size cut for Mediatek MT7623.
   - Misc janitorial and MAINTAINERS fixes"

* tag 'pinctrl-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (137 commits)
  pinctrl: samsung: Remove bogus irq_[un]mask from resource management
  pinctrl: rza1: make structures rza1_gpiochip_template and rza1_pinmux_ops static
  pinctrl: rza1: Remove unneeded wrong check for wrong variable
  pinctrl: qcom: Add ipq8074 pinctrl driver
  pinctrl: freescale: imx7d: make of_device_ids const.
  pinctrl: DT: extend the pinmux property to support integers array
  pinctrl: generic: Add output-enable property
  pinctrl: armada-37xx: Fix number of pin in sdio_sb
  pinctrl: armada-37xx: Fix uart2 group selection register mask
  pinctrl: bcm2835: Avoid warning from __irq_do_set_handler
  pinctrl: sh-pfc: r8a7795: Add PWM support
  MAINTAINERS: Add Qualcomm pinctrl drivers section
  arm: dts: dt-bindings: Add Renesas RZ/A1 pinctrl header
  dt-bindings: pinctrl: Add RZ/A1 bindings doc
  pinctrl: Renesas RZ/A1 pin and gpio controller
  pinctrl: sh-pfc: r8a7792: Add SCIF1 and SCIF2 pin groups
  pinctrl.txt: move it to the driver-api book
  pinctrl: ingenic: checking for NULL instead of IS_ERR()
  pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD20
  pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD11
  ...
2017-07-06 11:38:59 -07:00
Linus Torvalds
1849f800fb Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM device-tree updates from Arnd Bergmann:
 "Device-tree continues to see lots of updates. The majority of patches
  here are smaller changes for new hardware on existing platforms, and
  there are a few larger changes worth pointing out.

  New machines:

   - The new Action Semi S500 platform is added along with initial
     support for the LeMaker Guitar board.

   - STM32 gains support for three new boards: stm32h743-disco,
     stm32f746-disco, and stm32f769-disco, along with new device support
     for the existing stm32f429 boards.

   - Renesas adds two new boards, the tiny GR-Peach based on RZ/A1H with
     10MB on-chip SRAM, and the iWave G20D-Q7 System-on-Module plus
     board.

   - On Marvell "mvebu", we gain support for the Linksys WRT3200ACM
     wireless router.

   - For NXP i.MX, we gain support for the Gateworks Ventana GW5600 and
     the Technexion Pico i.MX7D single-board computers.

   - The BeagleBone Blue is added for OMAP, it's the latest variation of
     the popular Beaglebone Black single-board computer.

   - The Allwinner based Lichee Pi Zero and NanoPi M1 Plus boards are
     added, these are the latest variations of a seemingly endless
     supply of similar single-board computers.

  Other updates:

   - Linus Walleij improves support for the "Faraday" based SoC
     platforms from various SoC makers (Moxart, Aspeed, Gemini)

   - The ARM Mali GPU is now describe on Rockchips SoCs

   - Mediatek MT7623 is extended significantly, making it much more
     useful.

   - Lots of individual updates on Renesas, OMAP, Rockchips, Broadcom,
     Allwinner, Qualcomm, iMX

   - For Amlogic, the clock support is extended a lot on meson8b.

   - We now build the devicetree file for the Raspberry Pi 3 on 32-bit
     ARM, in addition to the existing ARM64 support, to help users
     wanting to run a 32-bit system on it"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (345 commits)
  ARM: dts: socfpga: set the i2c frequency
  ARM: dts: socfpga: Add second ethernet alias to VINING FPGA
  ARM: dts: socfpga: Drop LED node from VINING FPGA
  ARM: dts: socfpga: Remove I2C EEPROMs from VINING FPGA
  ARM: dts: socfpga: Enable QSPI support on VINING FPGA
  ARM: dts: socfpga: Fix the ethernet clock phandle
  ARM: pxa: Use - instead of @ for DT OPP entries
  ARM: dts: owl-s500: Add SPS node
  ARM: dts: owl-s500: Set CPU enable-method
  dt-bindings: arm: cpus: Add S500 enable-method
  ARM: dts: Add Actions Semi S500 and LeMaker Guitar
  dt-bindings: arm: Document Actions Semi S900
  dt-bindings: timer: Document Owl timer
  ARM: dts: imx6q-cm-fx6: add sdio wifi/bt nodes
  dt-bindings: arm: Document Actions Semi S500
  dt-bindings: Add vendor prefix for Actions Semi
  ARM: dts: turris-omnia: Add generic compatible string for I2C EEPROM
  ARM: dts: mvebu: add support for Linksys WRT3200ACM (Rango)
  ARM: dts: armada-385-linksys: fixup button node names
  ARM: dts: armada-385-linksys: group pins in pinctrl
  ...
2017-07-04 14:37:25 -07:00
Linus Walleij
6183061967 Merge tag 'v4.12-rc7' into devel
Linux 4.12-rc7
2017-06-29 14:27:39 +02:00
Biju Das
85bb4646f8 gpio: rcar: Add R8A7743 (RZ/G1M) support
Renesas RZ/G1M (R8A7743) SoC GPIO blocks are identical to the R-Car Gen2
family. Add support for its GPIO controllers.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-06-29 14:22:38 +02:00
Gregory CLEMENT
1fa67c675f gpio: dt-bindings: Add documentation for gpio controllers on Armada 7K/8K
Document the device tree binding for the gpio controllers found on the
Marvell Armada 7K and Armada 8K SoCs.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-06-27 09:07:17 +02:00
Ralph Sennhauser
6c7515c61f gpio: mvebu: change compatible string for PWM support
As it turns out more than just Armada 370 and XP support using GPIO
lines as PWM lines. For example the Armada 38x family has the same
hardware support. As such "marvell,armada-370-xp-gpio" for the
compatible string is a misnomer.

Change the compatible string to "marvell,armada-370-gpio" before the
driver makes it out of the -rc stage. This also follows the practice of
using only the first device family supported as part of the name.

Also update the documentation and comments in the code accordingly.

Fixes: 757642f9a5 ("gpio: mvebu: Add limited PWM support")
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-06-20 13:42:20 +02:00
Uwe Kleine-König
20d4dcec04 dts: gpio_atmel: adapt binding doc to reality
The second cell in a gpio reference is used to pass GPIO_ACTIVE_LOW or
GPIO_ACTIVE_HIGH. The gpio device can also be used as irq controller and
a reference can contain the IRQ_TYPE_* values in the second cell.

Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-05-31 11:51:21 +02:00
Charles Keepax
ca37978497 gpio: of: Add documentation of new sleep standard GPIO specifiers
Add documentation of new GPIO specifiers indicating if the state of an
output pin should be maintained during sleep/low-power mode.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-29 11:10:07 +02:00
Charles Keepax
f9e3a419aa gpio: of: Reflect decoupling of open collector and active low/high
Commit 4c0facddb7 ("gpio: core: Decouple open drain/source flag with
active low/high") decoupled the open collector outputs from active
low/high but did not update the documentation.

Update the device tree documentation to correctly reflect this new
separation between the two concepts.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-29 11:05:34 +02:00
Paul Cercueil
592870e6ed dt/bindings: Document gpio-ingenic
This commit adds documentation for the devicetree bindings of the
gpio-ingenic driver, which handles GPIOs of the Ingenic SoCs
currently supported by the Linux kernel.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 17:16:47 +02:00
Uwe Kleine-König
7b0db55336 gpio: fix description for gpio-ranges example
The length of the second entry is 20, so it affects GPIOs 10..29.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:37:22 +02:00
Anders Darander
fa2f60ffa0 gpio: DT bindings, move tca9554 from pcf857x to pca953x
The TCA9554 is similar to the PCA9554. Update the DT binding docs.

Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 18:30:26 +02:00
Nandor Han
42fcb203e3 gpio: Add XRA1403 DTS binding documentation
Add the XRA1403 DTS binding documentation.

Signed-off-by: Nandor Han <nandor.han@ge.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 15:48:30 +02:00
Andrew Jeffery
9d7163f516 gpio: aspeed: dt: Add optional clocks property
We need a reference to the HPLL to calculate debounce cycles. If the
clocks property is not supplied in the GPIO node then the consumer
should deny any debounce requests.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:46:55 +02:00
Andrew Jeffery
cea956551f gpio: aspeed: dt: Fix description alignment in bindings document
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:46:01 +02:00
Andrew Lunn
757642f9a5 gpio: mvebu: Add limited PWM support
Armada 370/XP devices can 'blink' GPIO lines with a configurable on
and off period. This can be modelled as a PWM.

However, there are only two sets of PWM configuration registers for
all the GPIO lines. This driver simply allows a single GPIO line per
GPIO chip of 32 lines to be used as a PWM. Attempts to use more return
EBUSY.

Due to the interleaving of registers it is not simple to separate the
PWM driver from the GPIO driver. Thus the GPIO driver has been
extended with a PWM driver.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
URL: https://patchwork.ozlabs.org/patch/427287/
URL: https://patchwork.ozlabs.org/patch/427295/
[Ralph Sennhauser:
  * Port forward
  * Merge PWM portion into gpio-mvebu.c
  * Switch to atomic PWM API
  * Add new compatible string marvell,armada-370-xp-gpio
  * Update and merge documentation patch
  * Update MAINTAINERS]
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 11:16:25 +02:00
Nathan Sullivan
b8c90199b5 gpio: mmio: add support for NI 169445 NAND GPIO
The GPIO-based NAND controller on National Instruments 169445 hardware
exposes a set of simple lines for the control signals.

Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-03-23 09:49:06 +01:00
Linus Walleij
32d9617234 gpio: gemini: augment DT bindings
The DT bindings assumed that this IP block was coming from
Cortina Systems, which turns out not to be true. It is a
standard IP block from Faraday Technology and also used in the
Moxa moxart SoC.

We augment the bindings to cover all existing parts and rename
it after the IP block. This involves deleting the old Moxa
bindings that now are contained in this binding.

Cc: devicetree@vger.kernel.org
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-03-22 09:38:12 +01:00
David Daney
f73b15487a dt-bindings: gpio: Add binding documentation for gpio-thunderx
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-03-15 11:16:31 +01:00
Linus Walleij
284864f990 gpio: add DT bindings for Cortina Gemini GPIO
This adds fairly standard DT bindings for the Cortina Systems
Gemini GPIO controller.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 10:00:23 +01:00
Steve Longerbeam
054ccdef8b gpio: pca953x: Add optional reset gpio control
Add optional reset-gpios pin control. If present, de-assert the
specified reset gpio pin to bring the chip out of reset.

v2:
- Specify that reset signal to PCA953x chip is active low, in
  binding doc.
- reorder includes in gpio-pca953x.c.
- remove dev_err() on devm_gpiod_get_optional() error return.

Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-11 16:35:23 +01:00
Geert Uytterhoeven
a79fead50f gpio: of: Add support for multiple GPIOs in a single GPIO hog
When listing multiple GPIOs in the "gpios" property of a GPIO hog, only
the first GPIO is affected.  The user is left clueless about the
dysfunctioning of the other GPIOs specified.

Fix this by adding and documenting support for specifying multiple
GPIOs in a single GPIO hog.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-12-30 09:26:54 +01:00
Linus Torvalds
786a72d791 Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM DT updates from Arnd Bergmann:
 "Lots of changes as usual, so I'm trying to be brief here. Most of the
  new hardware support has the respective driver changes merged through
  other trees or has had it available for a while, so this is where
  things come together.

  We get a DT descriptions for a couple of new SoCs, all of them
  variants of other chips we already support, and usually coming with a
  new evaluation board:

   - Oxford semiconductor (now Broadcom) OX820 SoC for NAS devices
   - Qualcomm MDM9615 LTE baseband
   - NXP imx6ull, the latest and smallest i.MX6 application processor variant
   - Renesas RZ/G (r8a7743 and r8a7745) application processors
   - Rockchip PX3, a variant of the rk3188 chip used in Android tablets
   - Rockchip rk1108 single-core application processor
   - ST stm32f746 Cortex-M7 based microcontroller
   - TI DRA71x automotive processors

  These are commercially available consumer platforms we now support:

   - Motorola Droid 4 (xt894) mobile phone
   - Rikomagic MK808 Android TV stick based on Rockchips rx3066
   - Cloud Engines PogoPlug v3 based on OX820
   - Various Broadcom based wireless devices:
      - Netgear R8500 router
      - Tenda AC9 router
      - TP-LINK Archer C9 V1
      - Luxul XAP-1510 Access point
   - Turris Omnia open hardware router based on Armada 385

  And a couple of new boards targeted at developers, makers or
  industrial integration:

   - Macnica Sodia development platform for Altera socfpga (Cyclone V)
   - MicroZed board based on Xilinx Zynq FPGA platforms
   - TOPEET itop/elite based on exynos4412
   - WP8548 MangOH Open Hardware platform for IOT, based on Qualcomm MDM9615
   - NextThing CHIP Pro gadget
   - NanoPi M1 development board
   - AM571x-IDK industrial board based on TI AM5718
   - i.MX6SX UDOO Neo
   - Boundary Devices Nitrogen6_SOM2 (i.MX6)
   - Engicam i.CoreM6
   - Grinn i.MX6UL liteSOM/liteBoard
   - Toradex Colibri iMX6 module

  Other changes:

   - added peripherals on renesas, davinci, stm32f429, uniphier, sti,
     mediatek, integrator, at91, imx, vybrid, ls1021a, omap, qualcomm,
     mvebu, allwinner, broadcom, exynos, zynq

   - Continued fixes for W=1 dtc warnings

   - The old STiH415/416 SoC support gets removed, these never made it
     into products and have served their purpose in the kernel as a
     template for teh newer chips from ST

   - The exynos4415 dtsi file is removed as nothing uses it.

   - Intel PXA25x can now be booted using devicetree"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (422 commits)
  arm: dts: zynq: Add MicroZed board support
  ARM: dts: da850: enable high speed for mmc
  ARM: dts: da850: Add node for pullup/pulldown pinconf
  ARM: dts: da850: enable memctrl and mstpri nodes per board
  ARM: dts: da850-lcdk: Add ethernet0 alias to DT
  ARM: dts: artpec: add pcie support
  ARM: dts: add support for Turris Omnia
  devicetree: Add vendor prefix for CZ.NIC
  ARM: dts: berlin2q-marvell-dmp: fix typo in chosen node
  ARM: dts: berlin2q-marvell-dmp: fix regulators' name
  ARM: dts: Add xo to sdhc clock node on qcom platforms
  ARM: dts: r8a7794: Add device node for PRR
  ARM: dts: r8a7793: Add device node for PRR
  ARM: dts: r8a7792: Add device node for PRR
  ARM: dts: r8a7791: Add device node for PRR
  ARM: dts: r8a7790: Add device node for PRR
  ARM: dts: r8a7779: Add device node for PRR
  ARM: dts: r8a73a4: Add device node for PRR
  ARM: dts: sk-rzg1e: add Ether support
  ARM: dts: sk-rzg1e: initial device tree
  ...
2016-12-15 15:50:24 -08:00
Vijay Kumar
1e0ced0948 ARM: dts: pxa: fix no. of gpio cells in the pxa gpio binding documentation
Fix the no. of gpio cells in pxa gpio binding documentation.

The no. of gpio cells for the pxa gpio is actually 2. But is
incorrectly specified as 1, in the binding documentation. From the
driver code, the second cell specifies the standard flags as described
in gpio.txt.

Signed-off-by: Vijay Kumar B. <vijaykumar@zilogic.com>
[fixed subject line]
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-11-18 17:09:43 +01:00
Linus Walleij
ecdd1b890d Merge branch 'ib-sx150x' into devel 2016-10-24 16:30:55 +02:00
Neil Armstrong
9e80f9064e pinctrl: Add SX150X GPIO Extender Pinctrl Driver
Since the I2C sx150x GPIO expander driver uses platform_data to manage
the pins configurations, rewrite the driver as a pinctrl driver using
pinconf to get/set pin configurations from DT or debugfs.

The pinctrl driver is functionnally equivalent as the gpio-only driver
and can use DT for pinconf. The platform_data confirmation is dropped.

This patchset removed the gpio-only driver and selects the Pinctrl driver
config instead. This patchset also migrates the gpio dt-bindings to pinctrl
and add the pinctrl optional properties.

The driver was tested with a SX1509 device on a BeagleBone black with
interrupt support and on an X86_64 machine over an I2C to USB converter.

This is a fixed version that builds and runs on non-OF platforms and on
arm based OF. The GPIO version is removed and the bindings are also moved
to the pinctrl bindings.

Changes since v2
 - rebased on v4.9-rc1
 - removed MODULE_DEVICE_TABLE as in upstream bb411e771b
   ("gpio: sx150x: fix implicit assumption module.h is present")

Changes since v1
 - Fix Kconfig descriptions on pinctrl and gpio
 - Fix Kconfig dependency
 - Remove oscio support for non-789 devices
 - correct typo in dt bindings
 - remove probe reset for non-789 devices

Changes since RFC
 - Put #ifdef CONFIG_OF/CONFIG_OF_GPIO to remove OF code for non-of platforms
 - No more rely on OF_GPIO config
 - Moved and enhanced bindings to pinctrl bindings
 - Removed gpio-sx150x.c
 - Temporary select PINCTRL_SX150X when GPIO_SX150X
 - Temporary mark GPIO_SX150X as deprecated

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
ested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-24 16:30:40 +02:00
Neil Armstrong
f0a8548bc1 dt-bindings: oxnas: Update Pinctrl and GPIO for OX820 Support
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-24 16:30:14 +02:00
Simon Horman
5d2f1d6ef9 gpio: rcar: Add r8a7796 (R-Car M3-W) support
R-Car Gen3's GPIO blocks are identical to Gen2's in every respect.

Based on work for the r8a7795 (R-Car H3) by Ulrich Hecht.

Cc: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-08 01:15:46 +02:00
Baruch Siach
f25fe36d0d gpio: mrvl: dt-binding: remove orion-gpio description
The Orion GPIO controller binding description in mrvl-gpio.txt is obsolete, and
duplicates the description in gpio-mvebu.txt.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-08 01:15:45 +02:00
Andrew Jeffery
19de85134e gpio: dt-bindings: Add documentation for Aspeed GPIO controllers
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-07 16:41:45 +02:00
Andrew F. Davis
54c928d335 dt-bindings: GPIO: Add TPIC2810 binding
Add binding for TPIC2810 GPO device.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-08-24 14:20:32 +02:00
Lucile Quirion
4cebaf17ec gpio: add bindings for Technologic I2C-FPGA gpio controller
Device tree binding documentation for Technologic's I2C-FPGA GPIO
controller.

Signed-off-by: Lucile Quirion <lucile.quirion@savoirfairelinux.com>
[Quirked in a reference to gpio.txt]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-08-19 11:02:57 +02:00
Andrew F. Davis
ccb3611f5a gpio: dt-bindings: remove ti,tps65086-gpio binding
This binding is no longer correct, the GPIO information can should be
added to the parent node and not into this child node. See
Documentation/devicetree/bindings/mfd/tps65086.txt for the correct usage.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-08-19 10:57:14 +02:00