From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7C4D2500BC; Fri, 21 Feb 2025 21:41:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740174080; cv=none; b=hbAwx24+PsVYX3g4dk5ft18qbv/+QQ/7bwH7ovWv6wrSpbtJ773U10/l5MiOwg6OlerriuQT6ywnQwPs6FJ53jUvWg3Ql1OYPU1E/OZjcQE7yzjVXLZup4AnNv7Td0UkfwsHPHNAxTnmGVOiJlYS9xSCYpOrLeywYYAlts50qbQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740174080; c=relaxed/simple; bh=v/SnGzcx/eJMMDRtXAJDI041OLygL1homwL+H1J7zik=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OpEbpzeEs2qBp5cal9GPIXav5sFrtpYuwuqe56PvwhCR6ZHgfEMpEkhKlNzhxdGlEVCq6b+cuwcBJXZgq00ObN7XrjLZMFOAGLoOZaNVljOYfXyrNxNrh6t+WHPakUhjmLz+HseKbjexs/YE7xmvc+/Ba63RuWXcXMtStwvHjP4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KYGip4rx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KYGip4rx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2C381C4CED6; Fri, 21 Feb 2025 21:41:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740174079; bh=v/SnGzcx/eJMMDRtXAJDI041OLygL1homwL+H1J7zik=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KYGip4rxDmQyH7aQXu+iG9aeJNld3pXpDWP3s2+vbrAuZT2ifOoC6rEkPdTaPSObk EWa6Cep/KYehSBuvj2FoGKJQBbcCB7hqAO24VFEdgZVcYXa6jcQbTLOrsccpVyA/y2 vuJrQl9cJGqr77is6sZ7RO/KBFNVFNe75Mdx2F6jKhKSgY10Mv+Ri21iSgfKV3YwMr gXN+9qZ3tn9y7ezxuCq/gJwgotcNmER7dFPTpXOvTLPNDUg+kPWBYWwM2lnlmBMuaD 4zP/LDWnktt2NGVhjCWQafUR3sIF9JOZYPPomIvgiNWLZb8OcmxB2Lv5TFNnwMIhH2 iXtW28jAwc3lQ== Date: Fri, 21 Feb 2025 15:41:17 -0600 From: Rob Herring To: Sasha Finkelstein Cc: Krzysztof Kozlowski , Sven Peter , Alyssa Rosenzweig , Krzysztof Kozlowski , Conor Dooley , Hector Martin , Ulf Hansson , Mauro Carvalho Chehab , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-media@vger.kernel.org, imx@lists.linux.dev Subject: Re: [PATCH 1/5] dt-bindings: power: apple,pmgr-pwrstate: Add force-{disable,reset} properties Message-ID: <20250221214117.GA119777-robh@kernel.org> References: <20250219-isp-v1-0-6d3e89b67c31@gmail.com> <20250219-isp-v1-1-6d3e89b67c31@gmail.com> <400d64ed-670a-4297-b43b-cdf4e8599c7b@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Feb 19, 2025 at 10:43:17AM +0100, Sasha Finkelstein wrote: > On Wed, 19 Feb 2025 at 10:34, Krzysztof Kozlowski wrote: > > On 19/02/2025 10:26, Sasha Finkelstein via B4 Relay wrote: > > > From: Sasha Finkelstein > > > > > > Add properties to set disable/reset bits when powering down > > > certain domains > > > > > > Please explain why and what problem are you solving. This looks too > > close to SW policy or really arbitrary choice. Background would be useful. > > The ISP block has some weird requirements where some of it's power domains > will not power down correctly without using the "force disable" or "force reset" > pmgr feature. Basically a hardware quirk. Add that to the commit message. Rob