From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 91D33D2ED0F for ; Tue, 20 Jan 2026 09:08:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F23B810E590; Tue, 20 Jan 2026 09:08:51 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.b="Jx08zulJ"; dkim-atps=neutral Received: from mail-wr1-f74.google.com (mail-wr1-f74.google.com [209.85.221.74]) by gabe.freedesktop.org (Postfix) with ESMTPS id 97F3310E590 for ; Tue, 20 Jan 2026 09:08:51 +0000 (UTC) Received: by mail-wr1-f74.google.com with SMTP id ffacd0b85a97d-431026b6252so5201819f8f.1 for ; Tue, 20 Jan 2026 01:08:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1768900130; x=1769504930; darn=lists.freedesktop.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=m0gC0kf1LN2c3lXGpvzmQRYw5J4jv726UtOthXTVGD8=; b=Jx08zulJCOgZtQv1Vc2H6wq9jW7EcQmWr+H85fvM0mFcuVDFqsi6JuDdnDb3BuvRBe wzLd0hRwOzAmPsiXmnWj1IHEsqnUAixqvQBHX+6lBTWpLJLv3Z3rJ8YHrUbAgHVZMAyx BY24W/0R9YZ3eOB3XV6nYCIuNmbarilrILEOujhvvhFNRcDi4TfMVKdoCvn8GOYI9zGS 8CqKmW5wREZhU+80GQKX/ShvfkD2nwxHTDlsutEo8IYnYD6wucVAcJe2vzsS+0KUDRx8 LOcF5lwzQ02O28MFvw0dpCLd/AeeKECvxSv/YxLe9dIGf+W5bVyJlRT9yTRWLJmxWvZ3 mScw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768900130; x=1769504930; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=m0gC0kf1LN2c3lXGpvzmQRYw5J4jv726UtOthXTVGD8=; b=COpxii1j6BWsg5NiSKhNU+ik5RA1tXAB5wKvqdCBsuJPISwZH1lHPCnwvwQ3goUnGw mxstN+UDMv/0BAp8P1GnxHXmf2vlSqHissWVtjEVDU9MkMvrYvCDMrvC5ib/isw5OT7H L9TM8tbbf8sUuC6Saune1DGYOct98VbghgwxbRo/j0RuteCk23gCJqmPj1xoWlpT1hRD WUEx5f4y9STNHAu88ilD6V/C917SBhUvbbLK/QXB1q+jFfIB4yZ2n6dSwi49XKMbUsax 5IHdtrH6dsNMCycNGqj46MKhVuGpmgrVdNlqUf30h1JWxKgDlOh9gt/pZL9pYGpLqjII O+vA== X-Gm-Message-State: AOJu0Yxr7I3m5NBwOUOc0v2Cg28Pp4zwzOzuZjL4X605L0NT9n4BPcbs FVzZU5AeOrwwBG/eFRiguW0yZzJPaH2R5vVHRWq6/gXLR2qvQEYNCJ0i9iiBaXN23WZ/1vwsOx0 t/E2m15ofFHOX9veWbw== X-Received: from wrbhb6.prod.google.com ([2002:a05:6000:4906:b0:434:3054:ca87]) (user=aliceryhl job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6000:1861:b0:432:dd71:8f2c with SMTP id ffacd0b85a97d-4356a03321dmr19272507f8f.10.1768900130207; Tue, 20 Jan 2026 01:08:50 -0800 (PST) Date: Tue, 20 Jan 2026 09:08:49 +0000 In-Reply-To: <20260119202645.362457-1-deborah.brouwer@collabora.com> Mime-Version: 1.0 References: <20260119202645.362457-1-deborah.brouwer@collabora.com> Message-ID: Subject: Re: [PATCH v2] drm/tyr: use read_poll_timeout From: Alice Ryhl To: Deborah Brouwer Cc: dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org, daniel.almeida@collabora.com, boris.brezillon@collabora.com, gary@garyguo.net Content-Type: text/plain; charset="utf-8" X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Mon, Jan 19, 2026 at 12:26:45PM -0800, Deborah Brouwer wrote: > The L2 power-on sequence and soft reset in Tyr previously relied on fixed > sleeps followed by a single register check, since polling helpers were not > available in Rust at the time. > > Now that read_poll_timeout() is available, poll the relevant registers > until the hardware reports readiness or a timeout is reached. > > This avoids unnecessary delays on start-up. > > Signed-off-by: Deborah Brouwer Merged into drm-rust-next, thanks!