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2024-07-09cpufreq: Add Loongson-3 CPUFreq driver supportHuacai Chen
Some of LoongArch processors (Loongson-3 series) support DVFS, their IOCSR.FEATURES has IOCSRF_FREQSCALE set. And they has a micro-core in the package called SMC (System Management Controller), which can be used to detect temperature, control fans, scale frequency and voltage, etc. The Loongson-3 CPUFreq driver is very simple now, it communicate with SMC, get DVFS info, set target frequency from CPUFreq core, and so on. There is a command list to interact with SMC, widely-used commands in the CPUFreq driver include: CMD_GET_VERSION: Get SMC firmware version. CMD_GET_FEATURE: Get enabled SMC features. CMD_SET_FEATURE: Enable SMC features, such as basic DVFS, BOOST. CMD_GET_FREQ_LEVEL_NUM: Get the number of all frequency levels. CMD_GET_FREQ_BOOST_LEVEL: Get the first boost frequency level. CMD_GET_FREQ_LEVEL_INFO: Get the detail info of a frequency level. CMD_GET_FREQ_INFO: Get the current frequency. CMD_SET_FREQ_INFO: Set the target frequency. In future we will add automatic frequency scaling, which is similar to Intel's HWP (HardWare P-State). Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> [ Viresh: Minor formatting cleanups, change return type of exit() to void and use devm_mutex_init() ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-07-09cpufreq: Make cpufreq_driver->exit() return voidLizhe
The cpufreq core doesn't check the return type of the exit() callback and there is not much the core can do on failures at that point. Just drop the returned value and make it return void. Signed-off-by: Lizhe <sensor1010@163.com> [ Viresh: Reworked the patches to fix all missing changes together. ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> # Mediatek Acked-by: Sudeep Holla <sudeep.holla@arm.com> # scpi, scmi, vexpress Acked-by: Mario Limonciello <mario.limonciello@amd.com> # amd Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> # bmips Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Kevin Hilman <khilman@baylibre.com> # omap
2024-07-09arm64: defconfig: Enable the IWLWIFI driverFabio Estevam
The IOT-GATE-iMX8 board has an Intel Wifi 6 AX200 module. Enable the IWLWIFI driver so that Wifi can work by default. Signed-off-by: Fabio Estevam <festevam@denx.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2024-07-09riscv: dts: add clock generator for Sophgo SG2042 SoCChen Wang
Add clock generator node to device tree for SG2042, and enable clock for uart. Signed-off-by: Chen Wang <unicorn_wang@outlook.com> Reviewed-by: Guo Ren <guoren@kernel.org>
2024-07-08dt-bindings: arm: cpus: Add new Cortex and Neoverse namesAndre Przywara
Add compatible strings for the Arm Cortex-A725 and Cortex-A925 CPUs, as well as new Neoverse cores: Arm Neoverse N3, Neoverse V2, Neoverse V3, and Neoverse V3AE. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240618160450.3168005-1-andre.przywara@arm.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08dt-bindings: interrupt-controller: qcom,pdc: Add sc8180x PDCBjorn Andersson
The SC8180X platform has a PDC block, add a compatible for this. Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20240525-sc8180x-pdc-binding-compatible-v1-1-17031c85ed69@quicinc.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08PCI: of_property: Add interrupt-controller property in PCI device nodesHerve Codina
PCI devices and bridges DT nodes created during the PCI scan are created with the interrupt-map property set to handle interrupts. In order to set this interrupt-map property at a specific level, a phandle to the parent interrupt controller is needed. On systems that are not fully described by a device-tree, the parent interrupt controller may be unavailable (i.e. not described by the device-tree). As mentioned in the [1], avoiding the use of the interrupt-map property and considering a PCI device as an interrupt controller itself avoid the use of a parent interrupt phandle. In that case, the PCI device itself as an interrupt controller is responsible for routing the interrupts described in the device-tree world (DT overlay) to the PCI interrupts. Add the 'interrupt-controller' property in the PCI device DT node. [1]: https://lore.kernel.org/lkml/CAL_Jsq+je7+9ATR=B6jXHjEJHjn24vQFs4Tvi9=vhDeK9n42Aw@mail.gmail.com/ Signed-off-by: Herve Codina <herve.codina@bootlin.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20240527161450.326615-18-herve.codina@bootlin.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08of: unittest: Add a test case for of_changeset_add_prop_bool()Herve Codina
Improve of_unittest_changeset_prop() to have a test case for the newly introduced of_changeset_add_prop_bool(). Signed-off-by: Herve Codina <herve.codina@bootlin.com> Link: https://lore.kernel.org/r/20240527161450.326615-17-herve.codina@bootlin.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08of: dynamic: Introduce of_changeset_add_prop_bool()Herve Codina
APIs to add some properties in a changeset exist but nothing to add a DT boolean property (i.e. a property without any values). Fill this lack with of_changeset_add_prop_bool(). Signed-off-by: Herve Codina <herve.codina@bootlin.com> Link: https://lore.kernel.org/r/20240527161450.326615-16-herve.codina@bootlin.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08of: unittest: Add tests for changeset properties addingHerve Codina
No test cases are present to test the of_changes_add_prop_*() function family. Add a new test to fill this lack. Functions tested are: - of_changes_add_prop_string() - of_changes_add_prop_string_array() - of_changeset_add_prop_u32() - of_changeset_add_prop_u32_array() Signed-off-by: Herve Codina <herve.codina@bootlin.com> Link: https://lore.kernel.org/r/20240527161450.326615-15-herve.codina@bootlin.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08of: dynamic: Constify parameter in of_changeset_add_prop_string_array()Herve Codina
The str_array parameter has no reason to be an un-const array. Indeed, elements of the 'str_array' array are not changed by the code. Constify the 'str_array' array parameter. With this const qualifier added, the following construction is allowed: static const char * const tab_str[] = { "string1", "string2" }; of_changeset_add_prop_string_array(..., tab_str, ARRAY_SIZE(tab_str)); Signed-off-by: Herve Codina <herve.codina@bootlin.com> Link: https://lore.kernel.org/r/20240527161450.326615-14-herve.codina@bootlin.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08dt-bindings: dma: qcom,gpi: document the SDX75 GPI DMA EngineRohit Agarwal
Document the GPI DMA Engine on the SDX75 Platform. Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240517100423.2006022-2-quic_rohiagar@quicinc.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08dt-bindings: watchdog: img,pdc-wdt: Convert to dtschemaShresth Prasad
Convert txt bindings of ImgTec's PDC watchdog timer to dtschema to allow for validation. Signed-off-by: Shresth Prasad <shrestprasad7@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240527195811.7897-2-shresthprasad7@gmail.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08dt-bindings: timer: renesas,tmu: Make interrupt-names requiredGeert Uytterhoeven
Now all in-tree users have been updated with interrupt-names properties according to commit 0076a37a426b6c85 ("dt-bindings: timer: renesas,tmu: Document input capture interrupt"), make interrupt-names required. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/65fdd0425be0cc1bae9e6f7996aceaa5ad34e510.1716985947.git.geert+renesas@glider.be Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08dt-bindings: interrupt-controller: fsl,irqsteer: Add imx8mp/imx8qxp supportAlexander Stein
Some SoC like i.MX8MP or i.MX8QXP use a power-domain for this IP. Add SoC-specific compatibles, which also requires a power-domain. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240528071141.92003-2-alexander.stein@ew.tq-group.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08Input: himax_hx83112b - add support for HX83100AFelix Kaechele
The HX83100A is a bit of an outlier in the Himax HX831xxx series of touch controllers as it requires reading touch events through the AHB interface of the MCU rather than providing a dedicated FIFO address like the other chips do. This patch implements the specific read function and introduces the HX83100A chip with an appropriate i2c ID and DT compatible string. The HX83100A doesn't have a straightforward way to do chip identification, which is why it is not implemented in this patch. Tested on: Lenovo ThinkSmart View (CD-18781Y) / Innolux P080DDD-AB2 LCM Signed-off-by: Felix Kaechele <felix@kaechele.ca> Tested-by: Paul Gale <paul@siliconpixel.com> Link: https://lore.kernel.org/r/20240620145019.156187-6-felix@kaechele.ca Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: himax_hx83112b - add himax_chip struct for multi-chip supportFelix Kaechele
In preparation for HX83100A support allow defining separate functions for specific chip operations. Signed-off-by: Felix Kaechele <felix@kaechele.ca> Link: https://lore.kernel.org/r/20240620145019.156187-5-felix@kaechele.ca Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: himax_hx83112b - implement MCU register readingFelix Kaechele
Implement reading from the MCU in a more universal fashion. This allows properly handling reads of more than 4 bytes using the AHB FIFO implemented in the chip. Signed-off-by: Felix Kaechele <felix@kaechele.ca> Link: https://lore.kernel.org/r/20240620145019.156187-4-felix@kaechele.ca Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: himax_hx83112b - use more descriptive register definesFelix Kaechele
Himax uses an AHB-style bus to communicate with different parts of the display driver and touch controller system. Use more descriptive names for the register and address defines. The names were taken from a driver submission for the similar HX83102J chip. Signed-off-by: Felix Kaechele <felix@kaechele.ca> Link: https://lore.kernel.org/all/TY0PR06MB561105A3386E9D76F429110D9E0F2@TY0PR06MB5611.apcprd06.prod.outlook.com/ Link: https://lore.kernel.org/r/20240620145019.156187-3-felix@kaechele.ca Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08dt-bindings: input: touchscreen: himax,hx83112b: add HX83100AFelix Kaechele
Add a compatible string for the Himax HX83100A touch controller. The HX83100A presents touch events on the internal bus rather than offering a dedicated event register like the other chips in this family do. Signed-off-by: Felix Kaechele <felix@kaechele.ca> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240620145019.156187-2-felix@kaechele.ca Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: do not check number of events in input_pass_values()Dmitry Torokhov
Now that the input_dev->vals array is always there we can be assured that input_pass_values() is always called with a non-0 number of events. Remove the check. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-8-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: preallocate memory to hold event valuesDmitry Torokhov
Preallocate memory for holding event values (input_dev->vals) so that there is no need to check if it was allocated or not in the event processing code. The amount of memory will be adjusted after input device has been fully set up upon registering device with the input core. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-7-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: rearrange input_alloc_device() to prepare for preallocating of valsDmitry Torokhov
In preparation to have dev->vals memory pre-allocated rearrange code in input_alloc_device() so that it allows handling multiple points of failure. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-6-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: simplify event handling logicDmitry Torokhov
Streamline event handling code by providing batch implementations for filtering and event processing and using them in place of the main event handler, as needed, instead of having complex branching logic in the middle of the event processing code. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-5-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: make events() method return number of events processedDmitry Torokhov
In preparation to consolidating filtering and event processing in the input core change events() method to return number of events processed by it. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-4-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: make sure input handlers define only one processing methodDmitry Torokhov
Input core expects input handlers to be either filters, or regular handlers, but not both. Additionally, for regular handlers it does not make sense to define both single event method and batch method. Refuse registering handler if it defines more than one method. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-3-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: evdev - remove ->event() methodDmitry Torokhov
Input core favors ->events() (batch) method over ->event() method if the former is defined, so there is no point in defining evdev_event() as it is never called. Remove it. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-2-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: imagis - add supports for Imagis IST3038Raymond Hackley
Imagis IST3038 is another variant of Imagis IST3038 IC, which has a different register interface from IST3038C (possibly firmware defined). Unlike IST3038C/IST3032C, IST3038 has different registers for commands, which means IST3038 doesn't use protocol B. Similar to IST3032C and maybe the other variants, IST3038 has touch keys support, which provides KEY_APPSELECT and KEY_BACK. Add support for IST3038 with touch keys. Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Link: https://lore.kernel.org/r/20240613025631.5425-4-raymondhackley@protonmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08dt-bindings: input/touchscreen: imagis: Document ist3038Raymond Hackley
Imagis IST3038 is a variant of Imagis touchscreen IC. Document it in imagis,ist3038c bindings. Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240613025631.5425-3-raymondhackley@protonmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: imagis - clarify the usage of protocol_bRaymond Hackley
protocol_b is a property, which tells Imagis panel to use a different format for coordinates. IST30XXC series is known for using protocol B, while the other series aren't. Note this could be confusing, unlike the model name implies. Adjust the usage of protocol_b to avoid confusion. Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Link: https://lore.kernel.org/r/20240613025631.5425-2-raymondhackley@protonmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-09i2c: rcar: bring hardware to known state when probingWolfram Sang
When probing, the hardware is not brought into a known state. This may be a problem when a hypervisor restarts Linux without resetting the hardware, leaving an old state running. Make sure the hardware gets initialized, especially interrupts should be cleared and disabled. Reported-by: Dirk Behme <dirk.behme@de.bosch.com> Reported-by: Geert Uytterhoeven <geert+renesas@glider.be> Closes: https://lore.kernel.org/r/20240702045535.2000393-1-dirk.behme@de.bosch.com Fixes: 6ccbe607132b ("i2c: add Renesas R-Car I2C driver") Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: mt7621: Add Airoha EN7581 i2c supportLorenzo Bianconi
Introduce i2c support to Airoha EN7581 SoC through the i2c-mt7621 driver. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Ray Liu <ray.liu@airoha.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: designware: Constify read-only struct regmap_configJavier Carrasco
`bt1_i2c_cfg` is not modified and can be declared as const to move its data to a read-only section. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: xiic: improve error message when transfer fails to startMarc Ferland
xiic_start_xfer can fail for different reasons: - EBUSY: bus is busy or i2c messages still in tx_msg or rx_msg - ETIMEDOUT: timed-out trying to clear the RX fifo - EINVAL: wrong clock settings Both EINVAL and ETIMEDOUT will currently print a specific error message followed by a generic one, for example: Failed to clear rx fifo Error xiic_start_xfer however EBUSY will simply output the generic message: Error xiic_start_xfer which is not really helpful. This commit adds a new error message when a busy condition is detected and also removes the generic message since it does not provide any relevant information to the user. Signed-off-by: Marc Ferland <marc.ferland@sonatest.com> Acked-by: Michal Simek <michal.simek@amd.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09dt-bindings: i2c: nxp,lpc1788-i2c: convert to dt schemaKanak Shilledar
Convert the NXP I2C controller for LPC2xxx/178x/18xx/43xx to newer DT schema. Created DT schema based on the .txt file which had `compatible`, `reg`, `interrupts`, `clocks`, `#address-cells` and `#size-cells` as required properties. Additional changes to the original .txt binding - added maintainer from the MAINTAINERS file. - added resets property required by the corresponding DTS files. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Kanak Shilledar <kanakshilledar@gmail.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09dt-bindings: i2c: adjust indentation in DTS example to coding styleKrzysztof Kozlowski
Bindings coding style expects 2- or 4-space indentation in the DTS example. Correct files having something odd (6- or 8-space) to 4-space while re-ordering few properties according to DTS coding style (the first property should be compatible, then reg/ranges). No functional impact. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09dt-bindings: i2c: ti,omap4: reference i2c-controller.yaml schemaKrzysztof Kozlowski
Reference the core I2C controller schema to properly define common properties. This allows to drop several (now redundant) properties. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09dt-bindings: i2c: samsung,s3c2410: drop unneeded address/size-cellsKrzysztof Kozlowski
The reference i2c-controller.yaml already defines 'address-cells' and 'size-cells', so drop them from list of properties. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09dt-bindings: i2c: nvidia,tegra20: drop unneeded address/size-cellsKrzysztof Kozlowski
The reference i2c-controller.yaml already defines 'address-cells' and 'size-cells', so drop them from list of properties. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09dt-bindings: i2c: atmel,at91sam: drop unneeded address/size-cellsKrzysztof Kozlowski
The reference i2c-controller.yaml already defines 'address-cells' and 'size-cells', so drop them from list of properties. Drop them as well from required properties, even though i2c-controller.yaml does not require them, because I2C controller could be enabled without any children in DTS for user-space usage. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: omap: wakeup the controller during suspend() callbackThomas Richard
A device may need the controller up during suspend_noirq() or resume_noirq(). But if the controller is autosuspended, there is no way to wakeup it during suspend_noirq() or resume_noirq() because runtime pm is disabled at this time. The suspend() callback wakes up the controller, so it is available until its suspend_noirq() callback (pm_runtime_force_suspend()). During the resume, it's restored by resume_noirq() callback (pm_runtime_force_resume()). Then resume() callback enables autosuspend. So the controller is up during a little time slot in suspend and resume sequences even if it's not used. Reviewed-by: Andi Shyti <andi.shyti@kernel.org> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: omap: switch to NOIRQ_SYSTEM_SLEEP_PM_OPS() and RUNTIME_PM_OPS()Thomas Richard
Replace SET_NOIRQ_SYSTEM_SLEEP_PM_OPS() and SET_RUNTIME_PM_OPS() by NOIRQ_SYSTEM_SLEEP_PM_OPS() and RUNTIME_PM_OPS(). The usage of pm_ptr() and these more recent macros allows the compiler to see and drop the dead code. The unnecessary '__maybe_unused' annotations on PM functions can be removed. Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: add missing MODULE_DESCRIPTION() macrosJeff Johnson
make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-ccgx-ucsi.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-ali1563.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-pxa.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-qup.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: i801: Add support for Intel Arrow Lake-HJarkko Nikula
Add SMBus PCI ID on Intel Arrow Lake-H. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-08Documentation: CXL Maturity MapDan Williams
Provide a survey of the work-in-progress maturity (implementation status) of various aspects of the CXL subsystem. Clarify that in addition to ongoing upkeep relative to specification updates, there are some long running themes in the driver that respond to the discovery of new corner cases (bugs) and new use cases (feature extensions). The primary audience is distribution maintainers, but it also serves as a guide for kernel developers to understand what aspects of the CXL subsystem need more help. It is a landing page to document ongoing progress, and a guide to discern exposure to work-in-progress features. Reviewed-by: Adam Manzanares <a.manzanares@samsung.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Link: https://patch.msgid.link/172005486862.2048248.6668794717827294862.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2024-07-09arm64: dts: rockchip: Add Xunlong Orange Pi 3BJonas Karlman
The Xunlong Orange Pi 3B is a single-board computer based on the Rockchip RK3566 SoC. Add initial support for eMMC, SD-card, Ethernet, HDMI, PCIe and USB. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Link: https://lore.kernel.org/r/20240626230319.1425316-3-jonas@kwiboo.se Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-07-09dt-bindings: arm: rockchip: Add Xunlong Orange Pi 3BJonas Karlman
Add devicetree binding for the Xunlong Orange Pi 3B board. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240626230319.1425316-2-jonas@kwiboo.se Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-07-09arm64: dts: rockchip: Add Radxa ROCK 3BJonas Karlman
The Radxa ROCK 3B is a single-board computer based on the Pico-ITX form factor (100mm x 75mm). Two versions of the ROCK 3B exists, a community version based on the RK3568 SoC and an industrial version based on the RK3568J SoC. Add initial support for eMMC, SD-card, Ethernet, HDMI, PCIe and USB. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Link: https://lore.kernel.org/r/20240627211737.1985549-3-jonas@kwiboo.se Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-07-09dt-bindings: arm: rockchip: Add Radxa ROCK 3BJonas Karlman
Add devicetree binding documentation for the Radxa ROCK 3B board. The Radxa ROCK 3B is a single-board computer based on the Pico-ITX form factor (100mm x 75mm). Two versions of the ROCK 3B exists, a community version based on the RK3568 SoC and an industrial version based on the RK3568J SoC. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240627211737.1985549-2-jonas@kwiboo.se Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-07-08rust: add abstraction for `struct page`Alice Ryhl
Adds a new struct called `Page` that wraps a pointer to `struct page`. This struct is assumed to hold ownership over the page, so that Rust code can allocate and manage pages directly. The page type has various methods for reading and writing into the page. These methods will temporarily map the page to allow the operation. All of these methods use a helper that takes an offset and length, performs bounds checks, and returns a pointer to the given offset in the page. This patch only adds support for pages of order zero, as that is all Rust Binder needs. However, it is written to make it easy to add support for higher-order pages in the future. To do that, you would add a const generic parameter to `Page` that specifies the order. Most of the methods do not need to be adjusted, as the logic for dealing with mapping multiple pages at once can be isolated to just the `with_pointer_into_page` method. Rust Binder needs to manage pages directly as that is how transactions are delivered: Each process has an mmap'd region for incoming transactions. When an incoming transaction arrives, the Binder driver will choose a region in the mmap, allocate and map the relevant pages manually, and copy the incoming transaction directly into the page. This architecture allows the driver to copy transactions directly from the address space of one process to another, without an intermediate copy to a kernel buffer. This code is based on Wedson's page abstractions from the old rust branch, but it has been modified by Alice by removing the incomplete support for higher-order pages, by introducing the `with_*` helpers to consolidate the bounds checking logic into a single place, and various other changes. Co-developed-by: Wedson Almeida Filho <wedsonaf@gmail.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com> Reviewed-by: Andreas Hindborg <a.hindborg@samsung.com> Reviewed-by: Trevor Gross <tmgross@umich.edu> Reviewed-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20240528-alice-mm-v7-4-78222c31b8f4@google.com [ Fixed typos and added a few intra-doc links. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-27 07:56:38 +0000