From 7b3dce814a15bc5d9fb6124cd945291012c4ebb9 Mon Sep 17 00:00:00 2001 From: Michal Wilczynski Date: Thu, 16 Oct 2025 15:38:02 +0200 Subject: rust: pwm: Add Kconfig and basic data structures MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce the foundational support for PWM abstractions in Rust. This commit adds the `RUST_PWM_ABSTRACTIONS` Kconfig option to enable the feature, along with the necessary build-system support and C helpers. It also introduces the first set of safe wrappers for the PWM subsystem, covering the basic data carrying C structs and enums: - `Polarity`: A safe wrapper for `enum pwm_polarity`. - `Waveform`: A wrapper for `struct pwm_waveform`. - `State`: A wrapper for `struct pwm_state`. These types provide memory safe, idiomatic Rust representations of the core PWM data structures and form the building blocks for the abstractions that will follow. Tested-by: Drew Fustini Reviewed-by: Daniel Almeida Reviewed-by: Elle Rhumsaa Signed-off-by: Michal Wilczynski Link: https://patch.msgid.link/20251016-rust-next-pwm-working-fan-for-sending-v16-2-a5df2405d2bd@samsung.com Signed-off-by: Uwe Kleine-König --- rust/helpers/pwm.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 rust/helpers/pwm.c (limited to 'rust/helpers/pwm.c') diff --git a/rust/helpers/pwm.c b/rust/helpers/pwm.c new file mode 100644 index 000000000000..d75c58886368 --- /dev/null +++ b/rust/helpers/pwm.c @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2025 Samsung Electronics Co., Ltd. +// Author: Michal Wilczynski + +#include + +struct device *rust_helper_pwmchip_parent(const struct pwm_chip *chip) +{ + return pwmchip_parent(chip); +} + +void *rust_helper_pwmchip_get_drvdata(struct pwm_chip *chip) +{ + return pwmchip_get_drvdata(chip); +} + +void rust_helper_pwmchip_set_drvdata(struct pwm_chip *chip, void *data) +{ + pwmchip_set_drvdata(chip, data); +} -- cgit