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2025-08-11dt-bindings: fsi: Convert aspeed,ast2400-cf-fsi-master to DT schemaRob Herring (Arm)
Convert the ASpeed Coldfire offloaded GPIO FSI master. Drop the "fsi-master" compatible as it has not be used consistently and doesn't represent anything. Acked-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20250731-dt-fsi-cleanups-v1-6-e7b695a29fc3@kernel.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-08-11dt-bindings: fsi: Convert fsi-master-gpio to DT schemaRob Herring (Arm)
Convert the GPIO-based FSI master binding to DT schema format. Drop the "fsi-master" compatible as it has not be used consistently and doesn't represent anything. Acked-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20250731-dt-fsi-cleanups-v1-5-e7b695a29fc3@kernel.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-03-11dt-bindings: fsi: ibm,p9-scom: Add "ibm,fsi2pib" compatibleRob Herring (Arm)
The "ibm,fsi2pib" compatible was originally in the binding, but it changed to "ibm,p9-scom" in the end. However, both compatibles are in use, so just support both. Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org> Link: https://lore.kernel.org/r/20250307230822.832936-1-robh@kernel.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: Document the FSI Hub ControllerEddie James
Document the FSI Hub Controller CFAM engine. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-11-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: Document the AST2700 FSI controllerEddie James
Add the appropriate compatible string, and document the new reg properties of the AST2700 FSI controller, which can directly access the FSI controller registers as well as the FSI link address space. Signed-off-by: Eddie James <eajames@linux.ibm.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-10-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: ast2600-fsi-master: Convert to json-schemaEddie James
Convert to json-schema for the AST2600 FSI master documentation. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-9-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: ibm,i2cr-fsi-master: Reference common FSI controllerEddie James
Remove the common properties from the I2CR documentation and instead point to the common FSI controller documentation. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-8-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: Document the FSI controller common propertiesEddie James
Since there are multiple FSI controllers documented, the common properties should be documented separately and then referenced from the specific controller documentation. Add bus-frequency for the FSI bus and CFAM local bus frequencies. Add interrupt controller properties. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-7-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: Document the IBM SBEFIFO engineEddie James
The SBEFIFO engine provides an interface to the POWER processor Self Boot Engine (SBE). Signed-off-by: Eddie James <eajames@linux.ibm.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au> Link: https://lore.kernel.org/r/20240522192524.3286237-6-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: p9-occ: Convert to json-schemaEddie James
Conver to json-schema for the OCC documentation. Also document the fact that the OCC "bridge" device will often have the hwmon node as a child. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-5-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: Document the IBM SCOM engineEddie James
The SCOM engine provides an interface to the POWER processor PIB (Pervasive Interconnect Bus). Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-4-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-09dt-bindings: fsi: fsi2spi: Document SPI controller child nodesEddie James
The FSI2SPI bridge has several SPI controllers behind it, which should be documented. Also, therefore the node needs to specify address and size cells. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240522192524.3286237-3-eajames@linux.ibm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2023-08-11dt-bindings: fsi: Document the IBM I2C Responder virtual FSI masterEddie James
The I2C Responder translates I2C commands to CFAM or SCOM operations, effectively implementing an FSI master. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230612195657.245125-13-eajames@linux.ibm.com Signed-off-by: Joel Stanley <joel@jms.id.au>
2021-07-19dt-bindings: fsi: Remove ibm,fsi2spi-restricted compatibleEddie James
Remove this compatible string from the FSI SPI controller documentation, since the security restrictions have been universally applied to the controllers. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20210716133915.14697-3-eajames@linux.ibm.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-11dt-bindings: fsi: Add P10 OCC device documentationEddie James
Add the P10 compatible string. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Joel Stanley <joel@jms.id.au> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201120010315.190737-2-joel@jms.id.au Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-10-15Merge tag 'char-misc-5.10-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char, misc, and other assorted driver subsystem patches for 5.10-rc1. There's a lot of different things in here, all over the drivers/ directory. Some summaries: - soundwire driver updates - habanalabs driver updates - extcon driver updates - nitro_enclaves new driver - fsl-mc driver and core updates - mhi core and bus updates - nvmem driver updates - eeprom driver updates - binder driver updates and fixes - vbox minor bugfixes - fsi driver updates - w1 driver updates - coresight driver updates - interconnect driver updates - misc driver updates - other minor driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (396 commits) binder: fix UAF when releasing todo list docs: w1: w1_therm: Fix broken xref, mistakes, clarify text misc: Kconfig: fix a HISI_HIKEY_USB dependency LSM: Fix type of id parameter in kernel_post_load_data prototype misc: Kconfig: add a new dependency for HISI_HIKEY_USB firmware_loader: fix a kernel-doc markup w1: w1_therm: make w1_poll_completion static binder: simplify the return expression of binder_mmap test_firmware: Test partial read support firmware: Add request_partial_firmware_into_buf() firmware: Store opt_flags in fw_priv fs/kernel_file_read: Add "offset" arg for partial reads IMA: Add support for file reads without contents LSM: Add "contents" flag to kernel_read_file hook module: Call security_kernel_post_load_data() firmware_loader: Use security_post_load_data() LSM: Introduce kernel_post_load_data() hook fs/kernel_read_file: Add file_size output argument fs/kernel_read_file: Switch buffer size arg to size_t fs/kernel_read_file: Remove redundant size argument ...
2020-10-14Merge tag 'devicetree-for-5.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: - Update dtc to upstream version v1.6.0-31-gcbca977ea121 - dtx_diff help text reformatting - Speed-up validation time for binding and dtb checks using json for intermediate files - Add support for running yamllint on DT schema files - Remove old booting-without-of.rst - Extend the example schema to address common issues - Cleanup handling of additionalProperties/unevaluatedProperties - Ensure all DSI controller schemas reference dsi-controller.yaml - Vendor prefixes for Zealz, Wandbord/Technexion, Embest RIoT, Rex, DFI, and Cisco Meraki - Convert at25, SPMI bus, TI hwlock, HiSilicon Hi3660 USB3 PHY, Arm SP805 watchdog, Arm SP804, and Samsung 11-pin USB connector to DT schema - Convert HiSilicon SoC and syscon bindings to DT schema - Convert SiFive Risc-V L2 cache, PLIC, PRCI, and PWM to DT schema - Convert i.MX bindings for w1, crypto, rng, SIM, PM, DDR, SATA, vf610 GPIO, and UART to DT schema - Add i.MX 8M compatible strings - Add LM81 and DS1780 as trivial devices - Various missing properties added to fix dtb validation warnings * tag 'devicetree-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (111 commits) dt-bindings: misc: explicitly add #address-cells for slave mode spi: dt-bindings: spi-controller: explicitly require #address-cells=<0> for slave mode dt: Remove booting-without-of.rst dt-bindings: update usb-c-connector example dt-bindings: arm: hisilicon: add missing properties into cpuctrl.yaml dt-bindings: arm: hisilicon: add missing properties into sysctrl.yaml dt-bindings: pwm: imx: document i.MX compatibles scripts/dtc: Update to upstream version v1.6.0-31-gcbca977ea121 dt-bindings: Add running yamllint to dt_binding_check dt-bindings: powerpc: Add a schema for the 'sleep' property dt-bindings: pinctrl: sirf: Fix typo abitrary dt-bindings: pinctrl: qcom: Fix typo abitrary dt-bindings: Explicitly allow additional properties in common schemas dt-bindings: Use 'additionalProperties' instead of 'unevaluatedProperties' dt-bindings: Add missing 'unevaluatedProperties' Docs: Fixing spelling errors in Documentation/devicetree/bindings/ dt-bindings: arm: hisilicon: convert Hi6220 domain controller bindings to json-schema dt-bindings: riscv: convert pwm bindings to json-schema dt-bindings: riscv: convert plic bindings to json-schema dt-bindings: fu540: prci: convert PRCI bindings to json-schema ...
2020-10-06dt-bindings: Another round of adding missing 'additionalProperties'Rob Herring
Another round of wack-a-mole. The json-schema default is additional unknown properties are allowed, but for DT all properties should be defined. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Baolin Wang <baolin.wang7@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Mark Brown <broonie@kernel.org> Reviewd-by: Corey Minyard <cminyard@mvista.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Sebastian Reichel <sre@kernel.org> Link: https://lore.kernel.org/r/20201002234143.3570746-1-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2020-09-17spi: fsi: fsi2spi: Add compatible string for restricted versionEddie James
Add a compatible string for the restricted version of the SPI controller. The restricted version cannot process sequence loop operations and therefore has a smaller transfer size. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20200909222857.28653-5-eajames@linux.ibm.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-10dt-bindings: fsi: Document gpiosJoel Stanley
The FSI master has some associated GPIOs that may be present on some hardware configurations. Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Link: https://lore.kernel.org/r/20200728025527.174503-2-joel@jms.id.au Signed-off-by: Joel Stanley <joel@jms.id.au>
2020-08-14dt-bindings: Whitespace clean-ups in schema filesRob Herring
Clean-up incorrect indentation, extra spaces, long lines, and missing EOF newline in schema files. Most of the clean-ups are for list indentation which should always be 2 spaces more than the preceding keyword. Found with yamllint (which I plan to integrate into the checks). Cc: linux-arm-kernel@lists.infradead.org Cc: linux-clk@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-spi@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-remoteproc@vger.kernel.org Cc: linux-hwmon@vger.kernel.org Cc: linux-i2c@vger.kernel.org Cc: linux-fbdev@vger.kernel.org Cc: linux-iio@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: alsa-devel@alsa-project.org Cc: linux-mmc@vger.kernel.org Cc: linux-mtd@lists.infradead.org Cc: netdev@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-serial@vger.kernel.org Cc: linux-usb@vger.kernel.org Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-10dt-bindings: fsi: Add FSI2SPI bindingsEddie James
Add documentation for the FSI2SPI CFAM engine, which provides access to a number of SPI controllers. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20200306194118.18581-2-eajames@linux.ibm.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-08dt-bindings: fsi: Add description of FSI masterJoel Stanley
This describes the FSI master present in the AST2600. Signed-off-by: Joel Stanley <joel@jms.id.au> Acked-by: Alistair Popple <alistair@popple.id.au> Link: https://lore.kernel.org/r/20191108051945.7109-9-joel@jms.id.au Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-02dt-bindings: fsi: Add P9 OCC device documentationEddie James
Document the bindings for the FSI-attached POWER9 On-Chip Controller. Signed-off-by: Eddie James <eajames@linux.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-07-23dt-bindings: fsi: Add optional chip-id to CFAMsBenjamin Herrenschmidt
This represents a physical chip in the system and allows a stable numbering scheme to be passed to udev for userspace to recognize which chip is which. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Rob Herring <robh@kernel.org>
2018-07-23dt-bindings: fsi: Document binding for the fsi-master-ast-cf "device"Benjamin Herrenschmidt
This isn't per-se a real device, it's a pseudo-device that represents the use of the Aspeed built-in ColdFire to implement the FSI protocol by bitbanging the GPIOs instead of doing it from the ARM core. Thus it's a drop-in replacement for the existing fsi-master-gpio pseudo-device for use on systems based on the Aspeed chips. It has most of the same properties, plus some more needed to operate the coprocessor. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Rob Herring <robh@kernel.org>
2018-05-31dt-bindings: fsi-master-gpio: Document "no-gpio-delays" propertyBenjamin Herrenschmidt
Support for this is being added to the driver but the original patch forgot to add this documentation. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Rob Herring <robh@kernel.org>
2018-03-14dt-bindings: fsi: Add optional property no-scan-on-initChristopher Bostic
Add an optional FSI master property 'no-scan-on-init. This can be specified to indicate that a master should not be automatically scanned at init time. This is required in cases where a scan could interfere with another FSI master on the same bus. Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-14dt-bindings: fsi: Add specification for FSI bussesJeremy Kerr
This change introduces a proposed layout for describing FSI busses in the device tree. While the bus is probe-able, we'd still like a method of describing subordinate (eg i2c) busses that are behind FSI devices. The FSI core will be responsible for matching probed slaves & engines to their device tree nodes, so the FSI device drivers' probe() functions will be passed a struct device with the appropriate of_node populated where a matching DT node is found. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Joel Stanley <joel@jms.id.au> Acked-by: Brad Bishop <bradleyb@fuzziesquirrel.com> Acked-by: Eddie James <eajames@linux.vnet.ibm.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-09drivers/fsi: Add documentation for GPIO bindingsChristopher Bostic
Add fsi master gpio device tree binding documentation. Includes changes from Jeremy Kerr <jk@ozlabs.org>. Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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