From patchwork Wed Mar 26 07:00:10 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James X-Patchwork-Id: 14029775 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 6503EC3600D for ; Wed, 26 Mar 2025 07:11:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 63D8910E0D8; Wed, 26 Mar 2025 07:11:13 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=fastmail.com header.i=@fastmail.com header.b="J2IKZvBp"; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.b="HikZFqdC"; dkim-atps=neutral X-Greylist: delayed 549 seconds by postgrey-1.36 at gabe; Wed, 26 Mar 2025 07:11:11 UTC Received: from fout-b3-smtp.messagingengine.com (fout-b3-smtp.messagingengine.com [202.12.124.146]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4FB6810E0C3; Wed, 26 Mar 2025 07:11:11 +0000 (UTC) Received: from phl-compute-07.internal (phl-compute-07.phl.internal [10.202.2.47]) by mailfout.stl.internal (Postfix) with ESMTP id 93D351140137; Wed, 26 Mar 2025 03:01:57 -0400 (EDT) Received: from phl-mailfrontend-02 ([10.202.2.163]) by phl-compute-07.internal (MEProxy); Wed, 26 Mar 2025 03:01:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fastmail.com; h= cc:cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:message-id:mime-version:reply-to:subject:subject:to :to; s=fm2; t=1742972517; x=1743058917; bh=S6n1PFsC1w5DEottY+AwJ eJag53HyiRO+q5bkxFofLY=; b=J2IKZvBp6WoCuSf+Enj1G4HWsyNAexnVcN/G+ 0lp1e79REc9ggHYcHtkm7Yt2cdFIXn3OPOglRgmwX1QgeDcHx46G8KJW7VgYb6cf FTj8KnNd0fWCPSOVxYNMwPlsvsFNIZG+nIMPxwgdpTpCsZRmBK9yBXwgFjccRWZ5 LjKxP7JdgnuKcDEkIP3qPstle6g75sXt24SE1PUlbeqDmVJ0x0ibBeG6oqn1Avkk RxpsUg0V8NbeXx3xHB9TdmyABLrHwS8YD0+zD9745NT4mAboZhk199DkewBXc93j g80qMYztjn9b3stN2iacVq0K7MQPyLF58RQv63rlWiS9JcQHw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:message-id:mime-version:reply-to:subject:subject:to :to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t= 1742972517; x=1743058917; bh=S6n1PFsC1w5DEottY+AwJeJag53HyiRO+q5 bkxFofLY=; b=HikZFqdCQkVrfylr12dgbQ2WTcsjuKjaJa5FyEmXT0wdVXfxKRA lPp4txpNprnnrr4s0yk7AZe+YAOF5s9wbgpmDywyIiVNHi/n/Q8IOlReXlJN13lP 0sl/3y6lc7AMKy/eLIAiG9OAJu7vnTB/QyPjXabuek9DXE8XdZ5wVCM4CINXramI oKzxiQKUneB7S5xfIQFK7KQB/fZhJJ939lpzfVrCKN/QQaX6nxShAd8JwagBCAiS OQMIjuD4aD1aeh3i4YYOY9h11p7OANsR34lEzEd9gr7kRqTbOcit5Z7o8IHX0aJV 0QZI6mxuWoyZ6HM59faSAn6xDDbpLmTDmrQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdduieegkeejucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdggtfgfnhhsuhgsshgtrhhisggv pdfurfetoffkrfgpnffqhgenuceurghilhhouhhtmecufedttdenucenucfjughrpefhvf evufffkffoggfgsedtkeertdertddtnecuhfhrohhmpeflrghmvghsucfhlhhofigvrhhs uceosgholhgurdiiohhnvgdvfeejfeesfhgrshhtmhgrihhlrdgtohhmqeenucggtffrrg htthgvrhhnpefhvefgkeeiuddtudfhgefgiedvuefhhedtffejtddtfeekieefieejveet hfegheenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpe gsohhlugdriihonhgvvdefjeefsehfrghsthhmrghilhdrtghomhdpnhgspghrtghpthht ohepudehpdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehhrghrrhihrdifvghnth hlrghnugesrghmugdrtghomhdprhgtphhtthhopehsuhhnphgvnhhgrdhlihesrghmugdr tghomhdprhgtphhtthhopehsihhquhgvihhrrgesihhgrghlihgrrdgtohhmpdhrtghpth htoheprghlvgigrghnuggvrhdruggvuhgthhgvrhesrghmugdrtghomhdprhgtphhtthho pegthhhrihhsthhirghnrdhkohgvnhhighesrghmugdrtghomhdprhgtphhtthhopegrih hrlhhivggusehgmhgrihhlrdgtohhmpdhrtghpthhtohepshhimhhonhgrsehffhiflhhl rdgthhdprhgtphhtthhopegruhhrrggsihhnughordhpihhllhgrihesrghmugdrtghomh dprhgtphhtthhopegrlhgvgidrhhhunhhgsegrmhgurdgtohhm X-ME-Proxy: Feedback-ID: ibd7e4881:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 26 Mar 2025 03:01:54 -0400 (EDT) From: James Flowers To: harry.wentland@amd.com, sunpeng.li@amd.com, siqueira@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com, airlied@gmail.com, simona@ffwll.ch, aurabindo.pillai@amd.com, alex.hung@amd.com, skhan@linuxfoundation.org Cc: James Flowers , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel-mentees@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] drm/amd/display: replace use of msleep(<20) with usleep_range for better accuracy Date: Wed, 26 Mar 2025 00:00:10 -0700 Message-ID: <20250326070054.68355-1-bold.zone2373@fastmail.com> X-Mailer: git-send-email 2.49.0 MIME-Version: 1.0 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" msleep < 20ms will often sleep for ~20ms (according to Documentation/timers/timers-howto.rst). Signed-off-by: James Flowers --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index 2cd35392e2da..2d225735602b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -682,7 +682,7 @@ static bool execute_synaptics_rc_command(struct drm_dp_aux *aux, if (rc_cmd == cmd) // active is 0 break; - msleep(10); + usleep_range(10000, 10200); } // read rc result