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7b3dce814a
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 <fustini@kernel.org> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Elle Rhumsaa <elle@weathered-steel.dev> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Link: https://patch.msgid.link/20251016-rust-next-pwm-working-fan-for-sending-v16-2-a5df2405d2bd@samsung.com Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
21 lines
486 B
C
21 lines
486 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2025 Samsung Electronics Co., Ltd.
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// Author: Michal Wilczynski <m.wilczynski@samsung.com>
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#include <linux/pwm.h>
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struct device *rust_helper_pwmchip_parent(const struct pwm_chip *chip)
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{
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return pwmchip_parent(chip);
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}
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void *rust_helper_pwmchip_get_drvdata(struct pwm_chip *chip)
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{
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return pwmchip_get_drvdata(chip);
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}
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void rust_helper_pwmchip_set_drvdata(struct pwm_chip *chip, void *data)
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{
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pwmchip_set_drvdata(chip, data);
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}
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