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* dt-bindings: Document the Synopsys GPIO via CREG bindingsEugeniy Paltsev2018-10-101-0/+21
| | | | | | | | | | This patch adds documentation of device tree bindings for the Synopsys GPIO via CREG driver. Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* dt-bindings: gpio: rcar: Add r8a7744 (RZ/G1N) supportBiju Das2018-09-251-0/+1
| | | | | | | | | | | Renesas RZ/G1N (R8A7744) 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: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-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>
* gpio: OF: Remove bad practice examplesLinus Walleij2018-09-201-15/+9
| | | | | | | | | | We remove the references to anything but two-cell GPIO specifiers and just mention that controllers need to specify their bindings and that we strongly recommend two-cell bindings. Cc: devicetree@vger.kernel.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: OF: Cut painful BNF experiments from bindingsLinus Walleij2018-09-201-50/+64
| | | | | | | | | | | | | | | | | | | | | | | | In 2011 the commit bf859f84a19f ("gpio/dt: Refine GPIO device tree binding") introduced an experimental BNF notation for defining a regular grammar for the GPIO phandles used by different devices. This was an interesting approach, and shows that we have long nutured the idea to formally verify device tree files using regular grammar. Most if not all other bindings use natural language to define the bindings, and the recent thinking for verifying device tree files is to use JSON schemas in separate definitions. Cut the BNF business and replace it with natural language so that it becomes more human-readable for now. Cc: devicetree@vger.kernel.org Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Kumar Gala <galak@kernel.crashing.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: of: make example syntactically correctWolfram Sang2018-09-111-4/+4
| | | | | | | | | The ';' was missing. And cosmetic: there was a space too much. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge branch 'ib-ingenic' of ../linux-pinctrl into develLinus Walleij2018-08-291-46/+0
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| * dt-bindings: pinctrl: Update pinctrl-ingenic for JZ4725B and GPIO mergePaul Cercueil2018-08-291-46/+0
| | | | | | | | | | | | | | | | | | | | | | The pinctrl-ingenic driver now supports the JZ4725B SoC. Furthermore, the gpio-ingenic driver was dropped and the pinctrl-ingenic driver is now responsible for providing the GPIO functionality. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | dt-bindings: gpio: rcar: Add r8a774a1 (RZ/G2M) supportFabrizio Castro2018-08-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | Document Renesas' RZ/G2M (R8A774A1) GPIO blocks compatibility within the relevant dt-bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | dt-bindings: gpio: rcar: Add gpio-reserved-ranges supportBiju Das2018-08-291-26/+35
|/ | | | | | | | | | | Update the DT bindings documentation with the optional gpio-reserved-ranges properties. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge tag 'gpio-v4.19-1' of ↵Linus Torvalds2018-08-155-0/+75
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 v4.19 kernel cycle. I don't know if anything in particular stands out. Maybe the Aspeed coprocessor thing from Benji: Aspeed is doing baseboard management chips (BMC's) for servers etc. These Aspeed's are ARM processors that exist inside (I guess) Intel servers, and they are moving forward to using mainline Linux in those. This is one of the pieces of the puzzle to achive that. They are doing OpenBMC, it's pretty cool: https://lwn.net/Articles/683320/ Summary: Core changes: - Add a new API for explicitly naming GPIO consumers, when needed. - Don't let userspace set values on input lines. While we do not think anyone would do this crazy thing we better plug the hole before someone uses it and think it's a nifty feature. - Avoid calling chip->request() for unused GPIOs. New drivers/subdrivers: - The Mediatek MT7621 is supported which is a big win for OpenWRT and similar router distributions using this chip, as it seems every major router manufacturer on the planet has made products using this chip: https://wikidevi.com/wiki/MediaTek_MT7621 - The Tegra 194 is now supported. - The IT87 driver now supports IT8786E and IT8718F super-IO chips. - Add support for Rockchip RK3328 in the syscon GPIO driver. Driver changes: - Handle the get/set_multiple() properly on MMIO chips with inverted direction registers. We didn't have this problem until a new chip appear that has get/set registers AND inverted direction bits, OK now we handle it. - A patch series making more error codes percolate upward properly for different errors on gpiochip_lock_as_irq(). - Get/set multiple for the OMAP driver, accelerating these multiple line operations if possible. - A coprocessor interface for the Aspeed driver. Sometimes a few GPIO lines need to be grabbed by a co-processor for doing automated tasks, sometimes they are available as GPIO lines. By adding an explicit API in this driver we make it possible for the two line consumers to coexist. (This work was made available on the ib-aspeed branch, which may be appearing in other pull requests.) - Implemented .get_direction() and open drain in the SCH311x driver. - Continuing cleanup of included headers in GPIO drivers" * tag 'gpio-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (80 commits) gpio: it87: Add support for IT8613 gpio: it87: add support for IT8718F Super I/O. gpiolib: Avoid calling chip->request() for unused gpios gpio: tegra: Include the right header gpio: mmio: Fix up inverted direction registers gpio: xilinx: Use the right include gpio: timberdale: Include the right header gpio: tb10x: Use the right include gpiolib: Fix of_node inconsistency gpio: vr41xx: Bail out on gpiochip_lock_as_irq() error gpio: uniphier: Bail out on gpiochip_lock_as_irq() error gpio: xgene-sb: Don't shadow error code of gpiochip_lock_as_irq() gpio: em: Don't shadow error code of gpiochip_lock_as_irq() gpio: dwapb: Don't shadow error code of gpiochip_lock_as_irq() gpio: bcm-kona: Don't shadow error code of gpiochip_lock_as_irq() gpiolib: Don't shadow error code of gpiochip_lock_as_irq() gpio: syscon: rockchip: add GRF GPIO support for rk3328 gpio: omap: Add get/set_multiple() callbacks gpio: pxa: remove set but not used variable 'gpio_offset' gpio-it87: add support for IT8786E Super I/O ...
| * gpio: syscon: rockchip: add GRF GPIO support for rk3328Levin Du2018-08-061-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In Rockchip RK3328, the output only GPIO_MUTE pin, originally for codec mute control, can also be used for general purpose. It is manipulated by the GRF_SOC_CON10 register in GRF. Aside from the GPIO_MUTE pin, the HDMI pins can also be set in the same way. Currently this GRF GPIO controller only supports the mute pin. If needed in the future, the HDMI pins support can also be added. Signed-off-by: Levin Du <djw@t-chip.com.cn> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mxc: Add clocks optional binding for imx gpioAnson Huang2018-07-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | Some i.MX SoCs have GPIO clock gate in CCM, accessing GPIO registers needs to enable GPIO clock gate first, i.MX GPIO driver will enable clock gate if there is clock property in GPIO node of dtb, add optional property to i.MX GPIO binding doc. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mt7621: Add DT bindingsSergio Paracuellos2018-07-091-0/+35
| | | | | | | | | | | | | | | | | | Add a devicetree binding documentation for the mt7621 gpio. Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Reviewed-by: NeilBrown <neil@brown.name> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * dt-bindings: tegra186-gpio: Add information for Tegra194Mikko Perttunen2018-07-021-0/+4
| | | | | | | | | | | | | | | | | | | | The Tegra194 GPIO controller is similar to the one in Tegra186. Add relevant information to the device tree binding documentation. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio-rcar: document R8A77980 bindingsSergei Shtylyov2018-06-181-0/+1
| | | | | | | | | | | | | | | | | | Renesas R-Car V3H (R8A77980) 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> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | Merge tag 'devicetree-for-4.19' of ↵Linus Torvalds2018-08-1418-22/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree updates from Rob Herring: - Remove an obsolete hack for PPC32 longtrail systems - Make of_io_request_and_map() "name" arg optional - Add vendor prefixes for bitmain, Asus, and Y Soft - Remove 'interrupt-parent' from bindings as it is implicit - New properties for wm8994 audio codec - Add 'clocks' property support to SRAM binding - Add binding for ASPEED coprocessor interrupt controller - Various binding spelling and link fixes * tag 'devicetree-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: Documentation: remove dynamic-resolution-notes reference to non-existent file dt-bindings: Add Y Soft Corporation vendor prefix of/fdt: Remove PPC32 longtrail hack in memory scan dt-bindings: remove 'interrupt-parent' from bindings pinctrl: tegra: fix spelling in devicetree binding document usb: dwc3: rockchip: Fix PHY documentation links. dt-bindings: sound: wm8994: document wlf,csnaddr-pd property dt-bindings: sound: wm8994: document wlf,spkmode-pu property dt-bindings: sram: Add 'clocks' as an optional property dt-bindings: Add vendor prefix for AsusTek Computer Inc. dt-bindings: misc: ASPEED coprocessor interrupt controller dt-bindings: gpio: pca953x: Document interrupts, update example drivers/of: Make of_io_request_and_map() "name" argument optional dt-bindings: Add bitmain vendor prefix Documentation: devicetree: tilcdc: fix spelling mistake "suppors" -> "supports"
| * | dt-bindings: remove 'interrupt-parent' from bindingsRob Herring2018-07-2517-22/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'interrupt-parent' is often documented as part of define bindings, but it is really outside the scope of a device binding. It's never required in a given node as it is often inherited from a parent node. Or it can be implicit if a parent node is an 'interrupt-controller' node. So remove it from all the binding files. Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
| * | dt-bindings: gpio: pca953x: Document interrupts, update exampleGeert Uytterhoeven2018-07-101-0/+3
| |/ | | | | | | | | | | | | | | | | | | The device can optionally supply an interrupt, hence document that. Add required GPIO properties to the example (extracted from a patch by Wolfram Sang). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
* | dt-bindings: Fix unbalanced quotation marksJonathan Neuschäfer2018-06-261-1/+1
|/ | | | | | | | | | | | | Multiple binding documents have various forms of unbalanced quotation marks. Fix them. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
* gpio: rcar: Add DT binding for r8a77990Yoshihiro Shimoda2018-05-231-0/+1
| | | | | | | | Add compatible string for R-Car E3 (r8a77990) in gpio-rcar. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* pca953x: add example how to use interrupt-controller and gpio-controllerH. Nikolaus Schaller2018-05-161-0/+33
| | | | | | | | | It is not completely obvious that these are required and how to use them. So we provide a tested example. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* DTS: Bindings: pca953x add an optional vcc-supply propertyH. Nikolaus Schaller2018-05-161-0/+1
| | | | | | | | | Hardware can have a switchable Vcc supply, so let's add it to the bindings (the current Linux driver code already supports it). Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: dwapb: Add support for 1 interrupt per port A GPIOPhil Edworthy2018-05-161-2/+7
| | | | | | | | | | | | | | | | | | | | | The DesignWare GPIO IP can be configured for either 1 interrupt or 1 per GPIO in port A, but the driver currently only supports 1 interrupt. See the DesignWare DW_apb_gpio Databook description of the 'GPIO_INTR_IO' parameter. This change allows the driver to work with up to 32 interrupts, it will get as many interrupts as specified in the DT 'interrupts' property. It doesn't do anything clever with the different interrupts, it just calls the same handler used for single interrupt hardware. ACPI companion code provided by Hoan Tran <hotran@apm.com>. This was tested on X-Gene by Hoan. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Hoan Tran <hotran@apm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* dt-bindings: gpio: Add support for r8a77965Jacopo Mondi2018-05-161-0/+1
| | | | | | | | | | Add compatible string for R-Car M3-N (r8a77965) in gpio-rcar. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* dt-bindings: gpio: rcar: Add r8a77470 (RZ/G1C) supportBiju Das2018-05-161-0/+1
| | | | | | | | | | | Renesas RZ/G1C (R8A77470) 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> Reviewed-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>
* Merge tag 'gpio-v4.17-1' of ↵Linus Torvalds2018-04-058-136/+188
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 v4.17 kernel cycle: New drivers: - Nintendo Wii GameCube GPIO, known as "Hollywood" - Raspberry Pi mailbox service GPIO expander - Spreadtrum main SC9860 SoC and IEC GPIO controllers. Improvements: - Implemented .get_multiple() callback for most of the high-performance industrial GPIO cards for the ISA bus. - ISA GPIO drivers now select the ISA_BUS_API instead of depending on it. This is merged with the same pattern for all the ISA drivers and some other Kconfig cleanups related to this. Cleanup: - Delete the TZ1090 GPIO drivers following the deletion of this SoC from the ARM tree. - Move the documentation over to driver-api to conform with the rest of the kernel documentation build. - Continue to make the GPIO drivers include only <linux/gpio/driver.h> and not the too broad <linux/gpio.h> that we want to get rid of. - Managed to remove VLA allocation from two drivers pending more fixes in this area for the next merge window. - Misc janitorial fixes" * tag 'gpio-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits) gpio: Add Spreadtrum PMIC EIC driver support gpio: Add Spreadtrum EIC driver support dt-bindings: gpio: Add Spreadtrum EIC controller documentation gpio: ath79: Fix potential NULL dereference in ath79_gpio_probe() pinctrl: qcom: Don't allow protected pins to be requested gpiolib: Support 'gpio-reserved-ranges' property gpiolib: Change bitmap allocation to kmalloc_array gpiolib: Extract mask allocation into subroutine dt-bindings: gpio: Add a gpio-reserved-ranges property gpio: mockup: fix a potential crash when creating debugfs entries gpio: pca953x: add compatibility for pcal6524 and pcal9555a gpio: dwapb: Add support for a bus clock gpio: Remove VLA from xra1403 driver gpio: Remove VLA from MAX3191X driver gpio: ws16c48: Implement get_multiple callback gpio: gpio-mm: Implement get_multiple callback gpio: 104-idi-48: Implement get_multiple callback gpio: 104-dio-48e: Implement get_multiple callback gpio: pcie-idio-24: Implement get_multiple/set_multiple callbacks gpio: pci-idio-16: Implement get_multiple callback ...
| * dt-bindings: gpio: Add Spreadtrum EIC controller documentationBaolin Wang2018-03-271-0/+97
| | | | | | | | | | | | | | | | | | | | | | This patch adds the device tree bindings for the Spreadtrum EIC controller. The EIC can be seen as a special type of GPIO, which can only be used as input mode. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * Merge branch 'gpio-reserved-ranges' into develLinus Walleij2018-03-271-3/+4
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| | * dt-bindings: gpio: Add a gpio-reserved-ranges propertyStephen Boyd2018-03-271-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some qcom platforms make some GPIOs or pins unavailable for use by non-secure operating systems, and thus reading or writing the registers for those pins will cause access control issues. Introduce a DT property to describe the set of GPIOs that are available for use so that higher level OSes are able to know what pins to avoid reading/writing. Cc: Grant Likely <grant.likely@secretlab.ca> Cc: <devicetree@vger.kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Rob Herring <robh@kernel.org> Tested-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: pca953x: add compatibility for pcal6524 and pcal9555aH. Nikolaus Schaller2018-03-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Pyra-Handheld originally used the tca6424 but recently we have replaced it by the pin and package compatible pcal6524. So let's add this to the bindings and the driver. And while we are at it, the pcal9555a does not have a compatible entry either but is already supported by the device id table. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | dt-bindings: gpio: Add Spreadtrum GPIO controller documentationBaolin Wang2018-03-021-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the device tree bindings for the Spreadtrum GPIO controller. The gpios will be supported by the GPIO generic library. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: Drop TZ1090 driversJames Hogan2018-03-012-133/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that arch/metag/ has been removed, along with TZ1090 SoC support, remove the TZ1090 GPIO drivers. They are of no value without the architecture and SoC platform code. Signed-off-by: James Hogan <jhogan@kernel.org> Cc: linux-gpio@vger.kernel.org Cc: linux-metag@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | dt-bindings: gpio: add raspberry pi GPIO expander bindingBaruch Siach2018-02-221-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Raspberry Pi 3 GPIO expander is controlled by the VC4 firmware over I2C. The firmware mailbox interface allows the ARM core to control the GPIO lines. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | dt-bindings: gpio: Add binding for Wii GPIO controllerJonathan Neuschäfer2018-02-121-0/+27
| |/ | | | | | | | | | | | | | | | | | | The Nintendo Wii game console has a GPIO controller, which is used for the optical disk slot LED, buttons, poweroff, etc. This patch adds a binding for this GPIO controller. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: remove etraxfs driverArnd Bergmann2018-03-261-22/+0
|/ | | | | | | The cris architecture is getting removed, so we no longer need the etraxfs driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Merge tag 'devicetree-for-4.16' of ↵Linus Torvalds2018-02-013-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - Convert to use memblock_virt_alloc in DT code which supports bootmem arches. With this we can remove the arch specific early_init_dt_alloc_memory_arch() functions. - Enable running the DT unittests on UML - Use SPDX license tags on DT files - Fix early FDT kconfig ifdef logic - Clean-up unittest Makefile - Fix function comment for of_irq_parse_raw - Add missing documentation for linux,initrd-{start,end} properties - Clean-up of binding examples using uppercase hex - Add trivial devices W83773G and Infineon TLV493D-A1B6 - Add missing STM32 SoC bindings - Various small binding doc fixes * tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (23 commits) xtensa: remove arch specific early DT functions x86: remove arch specific early_init_dt_alloc_memory_arch nios2: remove arch specific early_init_dt_alloc_memory_arch mips: remove arch specific early_init_dt_alloc_memory_arch metag: remove arch specific early DT functions cris: remove arch specific early DT functions libfdt: remove unnecessary include directive from <linux/libfdt.h> of: unittest: refactor Makefile of/fdt: use memblock_virt_alloc for early alloc of: Use SPDX license tag for DT files of/fdt: Fix #ifdef dependency of early flattree declarations dt-bindings: h8300 clocksource: correct spelling of pulse dt-bindings: imx6q-pcie: Add required property for i.MX6SX mmc: Don't reference Linux-specific OF_GPIO_ACTIVE_LOW flag in DT binding dt-bindings: Use lower case hex in unit-addresses dt-bindings: display: panel: Fix compatible string for Toshiba LT089AC29000 dt-bindings: Add Infineon TLV493D-A1B6 dt-bindings: mailbox: ti,message-manager: Fix interrupt name error dt-bindings: chosen: Document linux,initrd-{start,end} dt-bindings: arm: document supported STM32 SoC family ...
| * dt-bindings: Use lower case hex in unit-addressesRob Herring2017-12-263-3/+3
| | | | | | | | | | | | | | | | | | | | | | DT unit addresses should be lower case hex. Fix all the binding examples. Converted with the following command from Krzysztof Kozlowski: sed -e 's/@\([a-fA-F0-9_-]*\) {/@\L\1 {/' -i $(find Documentation/devicetree/bindings -name '*.txt') Signed-off-by: Rob Herring <robh@kernel.org>
* | Merge tag 'gpio-v4.16-1' of ↵Linus Torvalds2018-01-312-3/+48
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "The is the bulk of GPIO changes for the v4.16 kernel cycle. It is pretty calm this time around I think. I even got time to get to things like starting to clean up header includes. Core changes: - Disallow open drain and open source flags to be set simultaneously. This doesn't make electrical sense, and would the hardware actually respond to this setting, the result would be short circuit. - ACPI GPIO has a new core infrastructure for handling quirks. The quirks are there to deal with broken ACPI tables centrally instead of pushing the work to individual drivers. In the world of BIOS writers, the ACPI tables are perfect. Until they find a mistake in it. When such a mistake is found, we can patch it with a quirk. It should never happen, the problem is that it happens. So we accomodate for it. - Several documentation updates. - Revert the patch setting up initial direction state from reading the device. This was causing bad things for drivers that can't read status on all its pins. It is only affecting debugfs information quality. - Label descriptors with the device name if no explicit label is passed in. - Pave the ground for transitioning SPI and regulators to use GPIO descriptors by implementing some quirks in the device tree GPIO parsing code. New drivers: - New driver for the Access PCIe IDIO 24 family. Other: - Major refactorings and improvements to the GPIO mockup driver used for test and verification. - Moved the AXP209 driver over to pin control since it gained a pin control back-end. These patches will appear (with the same hashes) in the pin control pull request as well. - Convert the onewire GPIO driver w1-gpio to use descriptors. This is merged here since the W1 maintainers send very few pull requests and he ACKed it. - Start to clean up driver headers using <linux/gpio.h> to just use <linux/gpio/driver.h> as appropriate" * tag 'gpio-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (103 commits) gpio: Timestamp events in hardirq handler gpio: Fix kernel stack leak to userspace gpio: Fix a documentation spelling mistake gpio: Documentation update gpiolib: remove redundant initialization of pointer desc gpio: of: Fix NPE from OF flags gpio: stmpe: Delete an unnecessary variable initialisation in stmpe_gpio_probe() gpio: stmpe: Move an assignment in stmpe_gpio_probe() gpio: stmpe: Improve a size determination in stmpe_gpio_probe() gpio: stmpe: Use seq_putc() in stmpe_dbg_show() gpio: No NULL owner gpio: stmpe: i2c transfer are forbiden in atomic context gpio: davinci: Include proper header gpio: da905x: Include proper header gpio: cs5535: Include proper header gpio: crystalcove: Include proper header gpio: bt8xx: Include proper header gpio: bcm-kona: Include proper header gpio: arizona: Include proper header gpio: amd8111: Include proper header ...
| * dt-bindings: gpio: rcar: Correct SoC family name for R8A7778Geert Uytterhoeven2017-12-211-1/+1
| | | | | | | | | | | | | | | | | | R8A7778 is R-Car (not R-Mobile) M1. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * pinctrl: axp209: add support for AXP813 GPIOsQuentin Schulz2017-12-071-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The AXP813 has only two GPIOs. GPIO0 can either be used as a GPIO, an LDO regulator or an ADC. GPIO1 can be used either as a GPIO or an LDO regulator. Moreover, the status bit of the GPIOs when in input mode is not offset by 4 unlike the AXP209. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * dt-bindings: gpio: gpio-axp209: add pinctrl featuresQuentin Schulz2017-12-071-1/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | The X-Powers AXP209 has 3 GPIOs. GPIO0/1 can each act either as a GPIO, an ADC or a LDO regulator. GPIO2 can only act as a GPIO. This adds the pinctrl features to the driver so GPIO0/1 can be used as ADC or LDO regulator. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | Merge tag 'devicetree-fixes-for-4.15-part2' of ↵Linus Torvalds2017-12-081-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: "Another set of DT fixes: - Fixes from overlay code rework. A trifecta of fixes to the locking, an out of bounds access, and a memory leak in of_overlay_apply() - Clean-up at25 eeprom binding document - Remove leading '0x' in unit-addresses from binding docs" * tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: overlay: Make node skipping in init_overlay_changeset() clearer of: overlay: Fix out-of-bounds write in init_overlay_changeset() of: overlay: Fix (un)locking in of_overlay_apply() of: overlay: Fix memory leak in of_overlay_apply() error path dt-bindings: eeprom: at25: Document device-specific compatible values dt-bindings: eeprom: at25: Grammar s/are can/can/ dt-bindings: Remove leading 0x from bindings notation of: overlay: Remove else after goto of: Spelling s/changset/changeset/ of: unittest: Remove bogus overlay mutex release from overlay_data_add()
| * | dt-bindings: Remove leading 0x from bindings notationMathieu Malaterre2017-12-061-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve the binding example by removing all the leading 0x to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading "0x" Converted using the following command: find Documentation/devicetree/bindings -name "*.txt" -exec sed -i -e 's/([^ ])\@0x([0-9a-f])/$1\@$2/g' {} + This is a follow up to commit 48c926cd3414 Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: Rob Herring <robh@kernel.org>
* | gpio: pca953x: fix vendor prefix for PCA9654Sergei Shtylyov2017-12-021-1/+1
|/ | | | | | | | | | | | | | Despite commit 55020c8056a8 ("of: Add vendor prefix for ON Semiconductor Corp.") was made long ago, the latter commit 9f49f6dd0473 ("gpio: pca953x: add onsemi,pca9654 id") made use of another, undocumented vendor prefix. Since such prefix doesn't seem to be used in any device trees, I think we can just fix the "compatible" string in the driver and the bindings and be done with that... Fixes: 9f49f6dd0473 ("gpio: pca953x: add onsemi,pca9654 id") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge tag 'pinctrl-v4.15-1' of ↵Linus Torvalds2017-11-161-83/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v4.15 kernel cycle: Core: - The pin control Kconfig entry PINCTRL is now turned into a menuconfig option. This obviously has the implication of making the subsystem menu visible in menuconfig. This is happening because of two things: (a) Intel have started to deploy and depend on pin controllers in a way that is affecting users directly. This happens on the highly integrated laptop chipsets named after geographical places: baytrail, broxton, cannonlake, cedarfork, cherryview, denverton, geminilake, lewisburg, merrifield, sunrisepoint... It started a while back and now it is ever more evident that this is crucial infrastructure for x86 laptops and not an embedded obscurity anymore. Users need to be aware. (b) Pin control expanders on I2C and SPI that are arch-agnostic. Currently Semtech SX150X and Microchip MCP28x08 but more are expected. Users will have to be able to configure these in directly for their set-up. - Just go and select GPIOLIB now that we made sure that GPIOLIB is a very vanilla subsystem. Do not depend on it, if we need it, select it. - Exposing the pin control subsystem in menuconfig uncovered a bunch of obscure bugs that are now hopefully fixed, all more or less pertaining to Blackfin. - Unified namespace for cross-calls between pin control and GPIO. - New support for clock skew/delay generic DT bindings and generic pin config options for this. - Minor documentation improvements. Various: - The Renesas SH-PFC pin controller has evolved a lot. It seems Renesas are churning out new SoCs by the minute. - A bunch of non-critical fixes for the Rockchip driver. - Improve the use of library functions instead of open coding. - Support the MCP28018 variant in the MCP28x08 driver. - Static constifying" * tag 'pinctrl-v4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (91 commits) pinctrl: gemini: Fix missing pad descriptions pinctrl: Add some depends on HAS_IOMEM pinctrl: samsung/s3c24xx: add CONFIG_OF dependency pinctrl: gemini: Fix GMAC groups pinctrl: qcom: spmi-gpio: Add pmi8994 gpio support pinctrl: ti-iodelay: remove redundant unused variable dev pinctrl: max77620: Use common error handling code in max77620_pinconf_set() pinctrl: gemini: Implement clock skew/delay config pinctrl: gemini: Use generic DT parser pinctrl: Add skew-delay pin config and bindings pinctrl: armada-37xx: Add edge both type gpio irq support pinctrl: uniphier: remove eMMC hardware reset pin-mux pinctrl: rockchip: Add iomux-route switching support for rk3288 pinctrl: intel: Add Intel Cedar Fork PCH pin controller support pinctrl: intel: Make offset to interrupt status register configurable pinctrl: sunxi: Enforce the strict mode by default pinctrl: sunxi: Disable strict mode for old pinctrl drivers pinctrl: sunxi: Introduce the strict flag pinctrl: sh-pfc: Save/restore registers for PSCI system suspend pinctrl: sh-pfc: r8a7796: Use generic IOCTRL register description ...
| * Merge branch 'gpio-irqchip-rework' of /home/linus/linux-gpio into develLinus Walleij2017-11-094-0/+113
| |\
| * | dt-bindings: pinctrl: Move mcp23s08 from gpioLars Poeschel2017-10-111-83/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | Merge tag 'devicetree-for-4.15' of ↵Linus Torvalds2017-11-143-3/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: "A bigger diffstat than usual with the kbuild changes and a tree wide fix in the binding documentation. Summary: - kbuild cleanups and improvements for dtbs - Code clean-up of overlay code and fixing for some long standing memory leak and race condition in applying overlays - Improvements to DT memory usage making sysfs/kobjects optional and skipping unflattening of disabled nodes. This is part of kernel tinification efforts. - Final piece of removing storing the full path for every DT node. The prerequisite conversion of printk's to use device_node format specifier happened in 4.14. - Sync with current upstream dtc. This brings additional checks to dtb compiling. - Binding doc tree wide removal of leading 0s from examples - RTC binding documentation adding missing devices and some consolidation of duplicated bindings - Vendor prefix documentation for nutsboard, Silicon Storage Technology, shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH, Opal Kelly, and Next Thing" * tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits) dt-bindings: usb: add #phy-cells to usb-nop-xceiv dt-bindings: Remove leading zeros from bindings notation kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore .gitignore: sort normal pattern rules alphabetically dt-bindings: add vendor prefix for Next Thing Co. scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9 of: dynamic: fix memory leak related to properties of __of_node_dup of: overlay: make pr_err() string unique of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove of: overlay: remove unneeded check for NULL kbasename() of: overlay: remove a dependency on device node full_name of: overlay: simplify applying symbols from an overlay of: overlay: avoid race condition between applying multiple overlays of: overlay: loosen overly strict phandle clash check of: overlay: expand check of whether overlay changeset can be removed of: overlay: detect cases where device tree may become corrupt of: overlay: minor restructuring ...
| * | | dt-bindings: Remove leading zeros from bindings notationMarco Franchi2017-11-093-3/+3
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve the binding example by removing all the leading zeros to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading 0s Converted using the following command: perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./Documentation/devicetree/bindings "*.txt"` Some unnecessary changes were manually fixed. Signed-off-by: Marco Franchi <marco.franchi@nxp.com> Signed-off-by: Rob Herring <robh@kernel.org>
* | | Merge tag 'gpio-v4.15-1' of ↵Linus Torvalds2017-11-144-0/+114
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://gitolite.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 v4.15 kernel cycle: Core: - Fix the semantics of raw GPIO to actually be raw. No inversion semantics as before, but also no open draining, and allow the raw operations to affect lines used for interrupts as the caller supposedly knows what they are doing if they are getting the big hammer. - Rewrote the __inner_function() notation calls to names that make more sense. I just find this kind of code disturbing. - Drop the .irq_base() field from the gpiochip since now all IRQs are mapped dynamically. This is nice. - Support for .get_multiple() in the core driver API. This allows us to read several GPIO lines with a single register read. This has high value for some usecases: it can be used to create oscilloscopes and signal analyzers and other things that rely on reading several lines at exactly the same instant. Also a generally nice optimization. This uses the new assign_bit() macro from the bitops lib that was ACKed by Andrew Morton and is implemented for two drivers, one of them being the generic MMIO driver so everyone using that will be able to benefit from this. - Do not allow requests of Open Drain and Open Source setting of a GPIO line simultaneously. If the hardware actually supports enabling both at the same time the electrical result would be disastrous. - A new interrupt chip core helper. This will be helpful to deal with "banked" GPIOs, which means GPIO controllers with several logical blocks of GPIO inside them. This is several gpiochips per device in the device model, in contrast to the case when there is a 1-to-1 relationship between a device and a gpiochip. New drivers: - Maxim MAX3191x industrial serializer, a very interesting piece of professional I/O hardware. - Uniphier GPIO driver. This is the GPIO block from the recent Socionext (ex Fujitsu and Panasonic) platform. - Tegra 186 driver. This is based on the new banked GPIO infrastructure. Other improvements: - Some documentation improvements. - Wakeup support for the DesignWare DWAPB GPIO controller. - Reset line support on the DesignWare DWAPB GPIO controller. - Several non-critical bug fixes and improvements for the Broadcom BRCMSTB driver. - Misc non-critical bug fixes like exotic errorpaths, removal of dead code etc. - Explicit comments on fall-through switch() statements" * tag 'gpio-v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (65 commits) gpio: tegra186: Remove tegra186_gpio_lock_class gpio: rcar: Add r8a77995 (R-Car D3) support pinctrl: bcm2835: Fix some merge fallout gpio: Fix undefined lock_dep_class gpio: Automatically add lockdep keys gpio: Introduce struct gpio_irq_chip.first gpio: Disambiguate struct gpio_irq_chip.nested gpio: Add Tegra186 support gpio: Export gpiochip_irq_{map,unmap}() gpio: Implement tighter IRQ chip integration gpio: Move lock_key into struct gpio_irq_chip gpio: Move irq_valid_mask into struct gpio_irq_chip gpio: Move irq_nested into struct gpio_irq_chip gpio: Move irq_chained_parent to struct gpio_irq_chip gpio: Move irq_default_type to struct gpio_irq_chip gpio: Move irq_handler to struct gpio_irq_chip gpio: Move irqdomain into struct gpio_irq_chip gpio: Move irqchip into struct gpio_irq_chip gpio: Introduce struct gpio_irq_chip pinctrl: armada-37xx: remove unused variable ...
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