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 50C43C982D7 for ; Fri, 18 Sep 2026 21:54:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 894DC10E230; Fri, 18 Sep 2026 21:53:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="BOse+aHd"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9528E10E230 for ; Fri, 18 Sep 2026 21:53:57 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 3C1D0433C9; Fri, 18 Sep 2026 21:53:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E448C1F000FF; Fri, 18 Sep 2026 21:53:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789768437; bh=J0OVTGPgWTDcP7IeXfZpR+F08h8lgiCM2uhTjTHEnHM=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=BOse+aHdWkqCl9jRalTVS9IY0rpnulBUFT1S4W7GGNoZgeAJnRznJGubEV2g+vSQj pDORAHH08ft6C5FEFTsOqszrtyOWvG4Ty6k7pB1PT1Zk6CLDkpMjFXAY3eYstITnYI MpXo+u/Ibwct5b+cBSZhLGyexOMih9EB5/jd61BkvnltjjpqXMXPQsVxquLnxzUkCz xqluq/f28D2BvCyrtVE/VPdSxjB0fDyiaqUVlzKKOU8bu+B9aiSBXlh+jMt9/XUOYc nwlzZonWWZJrp2qT826QptvlxOADJRlCv03kL8kfxeZk5zLScDUIQnIi0DCR5PVs0f U0JAvvfi7NdfA== Date: Fri, 18 Sep 2026 16:53:55 -0500 From: Rob Herring To: Linus Walleij Cc: Krzysztof Kozlowski , Conor Dooley , Ulf Hansson , Mark Brown , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Vinod Koul , Frank Li , Lee Jones , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org, dmaengine@vger.kernel.org Subject: Re: [PATCH v2 09/20] dt-bindings: arm: pmu: Allow power domains Message-ID: <20260918215355.GA2371991-robh@kernel.org> References: <20260914-ux500-power-domains-v7-1-v2-0-9d0c17e1f816@kernel.org> <20260914-ux500-power-domains-v7-1-v2-9-9d0c17e1f816@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260914-ux500-power-domains-v7-1-v2-9-9d0c17e1f816@kernel.org> 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, Sep 14, 2026 at 01:54:37PM +0200, Linus Walleij wrote: > Allow ARM PMU nodes to reference their power domain. > > Signed-off-by: Linus Walleij > --- > Documentation/devicetree/bindings/arm/pmu.yaml | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml > index f47baaefcdac..305c1a9668f4 100644 > --- a/Documentation/devicetree/bindings/arm/pmu.yaml > +++ b/Documentation/devicetree/bindings/arm/pmu.yaml > @@ -88,6 +88,9 @@ properties: > # Don't know how many CPUs, so no constraints to specify > description: 1 per-cpu interrupt (PPI) or 1 interrupt per core. > > + power-domains: > + maxItems: 1 The PMUs are per core, so you really need to support more than 1. However, I think the PMUs would always be part of the core domain and the A9 docs[1] don't show any sort of PMU domain. We already support power-domains in the CPU nodes, wouldn't that be more accurate? Rob [1] https://support.arm.com/documentation/ddi0407/b/clocking--resets--and-power-management/iem-support/cortex-a9-mpcore-power-domains