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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4CD8C4332F for ; Wed, 13 Oct 2021 12:59:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE314610E7 for ; Wed, 13 Oct 2021 12:59:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234056AbhJMNBi (ORCPT ); Wed, 13 Oct 2021 09:01:38 -0400 Received: from new2-smtp.messagingengine.com ([66.111.4.224]:33301 "EHLO new2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233852AbhJMNBg (ORCPT ); Wed, 13 Oct 2021 09:01:36 -0400 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailnew.nyi.internal (Postfix) with ESMTP id 1B0A3580FDF; Wed, 13 Oct 2021 08:59:33 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Wed, 13 Oct 2021 08:59:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; s=fm1; bh= tX3xk8CBgYEN4SGA2ydJjebcCLI9vsqCGuf6LeOmxws=; b=EANt+pVQzOLfkNsO F1Cw6u9KjCEaqZuJZ1u6F6lnywCEOOUxA10PwrrOO+S7DXf+P5mk12/8z01wB41k mVc6hIWcxYZzukPD9UULzGwh9spIs7CT317R88opvLC35Oh7sm9uTnesB6C6Ys+u FZuTnh3k3XjIyz6Qem+zeRMZNslear77vUmvHSLh37IH9mHw70HD0bmq65OjKplG gZ9SH9oUcTC48BClKDvYxiBTlH/wPbMZURn00RChShS5/j+tpm89pp74vMP4Vy7z 16agVKdNQwxCZBJUWXe/1meNbUV7yoHLWFdG7RNM6NhEZNITTyVSLrtA7TWDWzWj UzrzXQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=tX3xk8CBgYEN4SGA2ydJjebcCLI9vsqCGuf6LeOmx ws=; b=oClDH5gVHGjGg4m6oRm0GBIVfk3g7HqoeJqcrRlcQ2Jhpp5JEHIyoFx9u GGAiffnt8lcKelZKIqIjGQMRG43J7Nj2lu7YFIqY36YqJa49ahQoYdzfH5H47rHj 4SDBR3IIf/6n5TJPHrYEGRVzkelHuHa5fjfhY4gDiHWZfG5muCt0K0bJiiheA1Tn qWz2NMsW8xXZCiaiCVaeQW9fs1jAtIgxx0HI+mkUQI+4/A7Vm8mOJsn/yF+TjStg HKutfuSyob2b7FpNB88a9wFu23vw4x7eq6UmIcxz8zePkx7lE6m8o3KgWUNRT5jj FSDwrv3kS+w+p+/1sQisSNo0sK8eA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddutddgheejucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfgggtgfesthekredtredtjeenucfhrhhomhepofgrgihi mhgvucftihhprghrugcuoehmrgigihhmvgestggvrhhnohdrthgvtghhqeenucggtffrrg htthgvrhhnpeejuefggeekfffgueevtddvudffhfejffejjedvvdduudethefhfefhfeeg ieekkeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpe hmrgigihhmvgestggvrhhnohdrthgvtghh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 13 Oct 2021 08:59:32 -0400 (EDT) From: Maxime Ripard To: Maxime Ripard , Maarten Lankhorst , David Airlie , Daniel Vetter , Thomas Zimmermann Cc: Linus Torvalds , linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Mike Turquette , Michael Stapelberg , Nicolas Saenz Julienne , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Stephen Boyd Subject: Re: (subset) [PATCH 3/5] drm/vc4: hdmi: Set a default HSM rate Date: Wed, 13 Oct 2021 14:59:23 +0200 Message-Id: <163412979204.237205.18044025820599349772.b4-ty@cerno.tech> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210922125419.4125779-4-maxime@cerno.tech> References: <20210922125419.4125779-1-maxime@cerno.tech> <20210922125419.4125779-4-maxime@cerno.tech> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org On Wed, 22 Sep 2021 14:54:17 +0200, Maxime Ripard wrote: > When the firmware doesn't setup the HSM rate (such as when booting > without an HDMI cable plugged in), its rate is 0 and thus any register > access results in a CPU stall, even though HSM is enabled. > > Let's enforce a minimum rate at boot to avoid this issue. > > > [...] Applied to drm/drm-misc (drm-misc-fixes). Thanks! 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Wed, 13 Oct 2021 08:59:32 -0400 (EDT) From: Maxime Ripard To: Maxime Ripard , Maarten Lankhorst , David Airlie , Daniel Vetter , Thomas Zimmermann Cc: Linus Torvalds , linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Mike Turquette , Michael Stapelberg , Nicolas Saenz Julienne , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Stephen Boyd Subject: Re: (subset) [PATCH 3/5] drm/vc4: hdmi: Set a default HSM rate Date: Wed, 13 Oct 2021 14:59:23 +0200 Message-Id: <163412979204.237205.18044025820599349772.b4-ty@cerno.tech> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210922125419.4125779-4-maxime@cerno.tech> References: <20210922125419.4125779-1-maxime@cerno.tech> <20210922125419.4125779-4-maxime@cerno.tech> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211013_055933_953123_43C910C1 X-CRM114-Status: UNSURE ( 7.68 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 22 Sep 2021 14:54:17 +0200, Maxime Ripard wrote: > When the firmware doesn't setup the HSM rate (such as when booting > without an HDMI cable plugged in), its rate is 0 and thus any register > access results in a CPU stall, even though HSM is enabled. > > Let's enforce a minimum rate at boot to avoid this issue. > > > [...] Applied to drm/drm-misc (drm-misc-fixes). Thanks! Maxime _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel