From 9cc63f8bcd560c760d0b12e15bba8f81c86237cf Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 14 Aug 2026 15:43:51 -0700 Subject: Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEAD Changes: Make expedited grace periods expedite normal RCU callbacks Miscellaneous fixes: * Improve diagnostic output with character task states. * Mark accesses to inform KCSAN of concurrency design. * Move from kmalloc() to kmalloc_obj(). * Documentation updates. * Improve handling of RCU deferred quiescent states. * Clean up unused function arguments and structure fields. * Reduce show_rcu_gp_kthreads() stack space. Tasks RCU updates: * Clean up after SRCU re-implementation of Tasks Trace RCU. * Mark accesses to inform KCSAN of concurrency design. * Add ->lazy_timer status to diagnostic output. * Remove an unnecessary memory barrier. * Fix a data race, courtesy of KCSAN. * Documentation updates. * Convert cond_resched_tasks_rcu_qs() from macro to static inline function. SRCU updates: * Add Rust helpers for SRCU. * Avoid losing queued work at cleanup_srcu_struct() time. Torture-test updates: * Preparation work for immediate RCU priority deboosting. * Test RCU readers from real interrupt handlers (as opposed to softirq). * Simplify code through use of cpumask_next_wrap(). * Improve diagnostic output with character task states. * Add rcutorture.nwriters parameter to allow lightweight stall testing, and rcutorture.stall_only to make doing so easier. * Test an RCU Tasks Trace grace period implying an RCU grace period. * Make RCU Tasks Trace torturing track reader batches. * Fix a data race, courtesy of KCSAN. * Plug a shuffle_tmp_mask memory leak on kthread spawn failure. --- .../trigger-source/adi,util-sigma-delta-spi.yaml | 49 ++++++++++++++++++++++ .../bindings/trigger-source/gpio-trigger.yaml | 40 ++++++++++++++++++ .../bindings/trigger-source/pwm-trigger.yaml | 37 ++++++++++++++++ 3 files changed, 126 insertions(+) create mode 100644 Documentation/devicetree/bindings/trigger-source/adi,util-sigma-delta-spi.yaml create mode 100644 Documentation/devicetree/bindings/trigger-source/gpio-trigger.yaml create mode 100644 Documentation/devicetree/bindings/trigger-source/pwm-trigger.yaml (limited to 'Documentation/devicetree/bindings/trigger-source') diff --git a/Documentation/devicetree/bindings/trigger-source/adi,util-sigma-delta-spi.yaml b/Documentation/devicetree/bindings/trigger-source/adi,util-sigma-delta-spi.yaml new file mode 100644 index 000000000..ea4661795 --- /dev/null +++ b/Documentation/devicetree/bindings/trigger-source/adi,util-sigma-delta-spi.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) 2025 Analog Devices, Inc. +# Copyright (c) 2025 BayLibre, SAS + +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/trigger-source/adi,util-sigma-delta-spi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices Util Sigma-Delta SPI IP Core + +maintainers: + - David Lechner + +description: + The Util Sigma-Delta SPI is an FPGA IP core from Analog Devices that provides + a SPI offload trigger from the RDY signal of the combined DOUT/RDY pin of + the sigma-delta family of ADCs. + https://analogdevicesinc.github.io/hdl/library/util_sigma_delta_spi/index.html + +properties: + compatible: + const: adi,util-sigma-delta-spi + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + '#trigger-source-cells': + const: 0 + +required: + - compatible + - reg + - clocks + - '#trigger-source-cells' + +additionalProperties: false + +examples: + - | + trigger@40000 { + reg = <0x40000 0x1000>; + compatible = "adi,util-sigma-delta-spi"; + clocks = <&clk 0>; + #trigger-source-cells = <0>; + }; diff --git a/Documentation/devicetree/bindings/trigger-source/gpio-trigger.yaml b/Documentation/devicetree/bindings/trigger-source/gpio-trigger.yaml new file mode 100644 index 000000000..1331d153e --- /dev/null +++ b/Documentation/devicetree/bindings/trigger-source/gpio-trigger.yaml @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/trigger-source/gpio-trigger.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic trigger source using GPIO + +description: A GPIO used as a trigger source. + +maintainers: + - Jonathan Santos + +properties: + compatible: + const: gpio-trigger + + '#trigger-source-cells': + const: 0 + + gpios: + maxItems: 1 + description: GPIO to be used as a trigger source. + +required: + - compatible + - '#trigger-source-cells' + - gpios + +additionalProperties: false + +examples: + - | + #include + + trigger { + compatible = "gpio-trigger"; + #trigger-source-cells = <0>; + gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; + }; diff --git a/Documentation/devicetree/bindings/trigger-source/pwm-trigger.yaml b/Documentation/devicetree/bindings/trigger-source/pwm-trigger.yaml new file mode 100644 index 000000000..1eac20031 --- /dev/null +++ b/Documentation/devicetree/bindings/trigger-source/pwm-trigger.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/trigger-source/pwm-trigger.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic trigger source using PWM + +description: Remaps a PWM channel as a trigger source. + +maintainers: + - David Lechner + +properties: + compatible: + const: pwm-trigger + + '#trigger-source-cells': + const: 0 + + pwms: + maxItems: 1 + +required: + - compatible + - '#trigger-source-cells' + - pwms + +additionalProperties: false + +examples: + - | + trigger { + compatible = "pwm-trigger"; + #trigger-source-cells = <0>; + pwms = <&pwm 0 1000000 0>; + }; -- cgit v1.3.1