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Tue, 13 Jan 2026 07:13:30 -0800 (PST) Date: Tue, 13 Jan 2026 15:12:38 +0000 In-Reply-To: <20260113-clk-send-sync-v4-0-712bc7d94a79@google.com> Mime-Version: 1.0 References: <20260113-clk-send-sync-v4-0-712bc7d94a79@google.com> X-Developer-Key: i=aliceryhl@google.com; a=openpgp; fpr=49F6C1FAA74960F43A5B86A1EE7A392FDE96209F X-Developer-Signature: v=1; a=openpgp-sha256; l=1764; i=aliceryhl@google.com; h=from:subject:message-id; bh=vFWramkwrqwtJwgC1sH4LSgngbV/etS8iNI590sqCqw=; b=owEBbQKS/ZANAwAKAQRYvu5YxjlGAcsmYgBpZmEQEuN4uaDvBaM5TmqN9WnhJMSuME0tcTbvE YTkLG+hAaWJAjMEAAEKAB0WIQSDkqKUTWQHCvFIvbIEWL7uWMY5RgUCaWZhEAAKCRAEWL7uWMY5 Rl6hD/0auoTL/sGpImpn7/kPf/KAL2X3YoNiKIZzHThKN8uT1uxeAYone+3mo8qyaTcM9DDITr6 5cq6SQN1VE2Upbba2oSwzLdXTkToZdNh+mu4Eq7ky7DhHdURd5KFsAFZz5bKVWAmFMxPGbXUWic zpbpxMTJ6QUnuHOIvfuu39nblQdZZj/6inRVCAcTQSmG5vF+0/DftaL6fp7SaUGj5FCNfgFRCmL YfTJ/wKsnbTffuMy8sp7BuWtqb4OBFXJPp5j+I8cTSmiyuKCVi2p3nkwxAr08fVpyFR5Jd0y50w otlpyfnNzzPJXkKkBzupe6ry4LS/qg/2JcnC5qdPiY6x05rKLHCxRz3ClDVzNNLp4vntSxuZQ7w 9aVP+poXva8l8+v6nfWgIO8ciKcZUO1IAaVilhy0TPvkVEvV0b33l0ek0qo35T+BaWJ++Y+42sY fBHOMq5NlR5BNtcXrC6GJUruPQL6goEC6xqO8yv++luTB8ag+k81xfDQtXot3b+YVi7M5xPzdwd JuhPfPLk0Cs4EE/1l2ROvSfM+IWqM1pzSJLQxHJTr18UvcST4VAvFFyF8C7FGjeAdCeRgpm4/T6 FzJIbAfWa+VuJMMWr7B1nkYoHdHqGCIR4tLS5Meh4HkFP2AGWG+8teZRq3kTzVMedKRt86fLJ5+ 5OXudD+J6HDSHOw== X-Mailer: b4 0.14.2 Message-ID: <20260113-clk-send-sync-v4-3-712bc7d94a79@google.com> Subject: [PATCH v4 3/3] pwm: th1520: remove impl Send/Sync for Th1520PwmDriverData From: Alice Ryhl To: Stephen Boyd Cc: Michael Turquette , Maarten Lankhorst , Maxime Ripard , Drew Fustini , Guo Ren , Fu Wei , "=?utf-8?q?Uwe_Kleine-K=C3=B6nig?=" , Michal Wilczynski , Viresh Kumar , Miguel Ojeda , Boqun Feng , Gary Guo , "=?utf-8?q?Bj=C3=B6rn_Roy_Baron?=" , Benno Lossin , Andreas Hindborg , Trevor Gross , Danilo Krummrich , Daniel Almeida , linux-clk@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-pwm@vger.kernel.org, Alice Ryhl , linux-riscv@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260113_071332_808666_8A887376 X-CRM114-Status: GOOD ( 10.33 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Now that clk implements Send and Sync, we no longer need to manually implement these traits for Th1520PwmDriverData. Thus remove the implementations. Reviewed-by: Gary Guo Reviewed-by: Daniel Almeida Signed-off-by: Alice Ryhl --- Cc: linux-riscv@lists.infradead.org --- drivers/pwm/pwm_th1520.rs | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs index e3b7e77356fc2492077c519073e861beb3e44df9..043dc4dbc6232020195c7b73fad302bbb69652df 100644 --- a/drivers/pwm/pwm_th1520.rs +++ b/drivers/pwm/pwm_th1520.rs @@ -97,21 +97,6 @@ struct Th1520PwmDriverData { clk: Clk, } -// This `unsafe` implementation is a temporary necessity because the underlying `kernel::clk::Clk` -// type does not yet expose `Send` and `Sync` implementations. This block should be removed -// as soon as the clock abstraction provides these guarantees directly. -// TODO: Remove those unsafe impl's when Clk will support them itself. - -// SAFETY: The `devres` framework requires the driver's private data to be `Send` and `Sync`. -// We can guarantee this because the PWM core synchronizes all callbacks, preventing concurrent -// access to the contained `iomem` and `clk` resources. -unsafe impl Send for Th1520PwmDriverData {} - -// SAFETY: The same reasoning applies as for `Send`. The PWM core's synchronization -// guarantees that it is safe for multiple threads to have shared access (`&self`) -// to the driver data during callbacks. -unsafe impl Sync for Th1520PwmDriverData {} - impl pwm::PwmOps for Th1520PwmDriverData { type WfHw = Th1520WfHw; -- 2.52.0.457.g6b5491de43-goog _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv