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 AF49133F8DA; Thu, 29 Jan 2026 16:55:32 +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=1769705732; cv=none; b=HDFiZsci65vc1mtKoue+dX07YXm5gnLje6EvJuvNDXgfl+jxfcmF06YOPO+7KtZL3Sb0qxeKFvSbV6arEntLE6p7gzgp1wsqg2qcYlRXuF3UKskNBVh7qubatVJKZ6TffcrFFZ+nVEuO/V5nvY0nPHTzWY5FhyuNQqHxP93zPx8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769705732; c=relaxed/simple; bh=mZs03WYD4uRFTip8el8/SaAOaPr/KLn2tNNfr3ADzqM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CDn28Y0Q8gHfRdCQXq9ZdCcEDjc48OsExuYGt+bgAleGOIHm8rk8lmGSjIUj3BrWJjpTweeaMEbwrtBQc5XsEWc8Tw0md+rS3Ab6bTQ2sW4KiWHtMP5ptIf82nP8K47TLtId+f0qL+AqwmeU6zNAaaHEeWAQDc1jcpFYR9OkDzQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nZ9zKXPr; 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="nZ9zKXPr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2388DC4CEF7; Thu, 29 Jan 2026 16:55:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769705732; bh=mZs03WYD4uRFTip8el8/SaAOaPr/KLn2tNNfr3ADzqM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nZ9zKXPrUoLdPcQT07k41nF6WLFtAZZe85ruwQmm2Z6RUd7uI19PFYB+1ygycb4+M sNCytqXi9y3Yl5Rb0q7B1wy1J+Zf+bZbyrUT78u17Tt5sefiGwO5vzgAQOZsFmDWt4 XopdtXorOrT50Q/a0g3gO2NgU3+P/zLd4y0BZr3B1SiNTxEw2h6ptRyVgpvGLwllX3 BhgOzt+uetn51K+48rjGu/HaNDaolUvnMJfo5ufAUzH3x/dkCNxmTSxeg4rMso2fAr /3haGHrGsIPWwslXr3sdWoGcmN2aIIgvJ1QpRE0smIEE4lBIGhJTMYVYznTNnyTr2N aBTvmwwndhT5w== Date: Thu, 29 Jan 2026 10:55:31 -0600 From: Rob Herring To: =?iso-8859-1?Q?Andr=E9?= Draszik Cc: Krzysztof Kozlowski , Alim Akhtar , Conor Dooley , Krzysztof Kozlowski , Ulf Hansson , Liam Girdwood , Mark Brown , Peter Griffin , Tudor Ambarus , Juan Yescas , Will McVicker , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: Re: [PATCH v4 01/10] dt-bindings: soc: google: add google,gs101-dtzpc Message-ID: <20260129165531.GA1269692-robh@kernel.org> References: <20260128-gs101-pd-v4-0-cbe7bd5a4060@linaro.org> <20260128-gs101-pd-v4-1-cbe7bd5a4060@linaro.org> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260128-gs101-pd-v4-1-cbe7bd5a4060@linaro.org> On Wed, Jan 28, 2026 at 04:10:50PM +0000, André Draszik wrote: > The Exynos Distributed TruztZone Protection Control (D_TZPC) provides > an interface to the protection bits that are included in the TrustZone > design in a secure system. It configures each area of the memory as > secure or non-secure. This sounds like what access-controllers binding is for. Does that work here? > Signed-off-by: André Draszik > --- > .../bindings/soc/google/google,gs101-dtzpc.yaml | 42 ++++++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 43 insertions(+) > > diff --git a/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml b/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml > new file mode 100644 > index 0000000000000000000000000000000000000000..a8c61ce069d6910c47753bf14a792eb58e6ae182 > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml > @@ -0,0 +1,42 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/soc/google/google,gs101-dtzpc.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Samsung Exynos Distributed TruztZone Protection Control. > + > +description: > + Distributed TrustZone Protection Control (D_TZPC) provides an interface to the > + protection bits that are included in the TrustZone design in a secure system. > + It configures each area of the memory as secure or non-secure. > + > +maintainers: > + - André Draszik > + > +properties: > + compatible: > + const: google,gs101-dtzpc > + > + clocks: > + maxItems: 1 > + > + reg: > + maxItems: 1 > + > +required: > + - compatible > + - clocks > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + #include > + > + dtzpc_hsi0: dtzpc@11010000 { > + compatible = "google,gs101-dtzpc"; > + reg = <0x11010000 0x10000>; > + clocks = <&cmu_hsi0 CLK_GOUT_HSI0_D_TZPC_HSI0_PCLK>; > + }; > diff --git a/MAINTAINERS b/MAINTAINERS > index a56f8f00aebb938aa765a8a6d66dfeb7f062dac8..98b2ef47c809ac0232e6941c9483b19d7c798bb4 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -10833,6 +10833,7 @@ P: Documentation/process/maintainer-soc-clean-dts.rst > C: irc://irc.oftc.net/pixel6-kernel-dev > F: Documentation/devicetree/bindings/clock/google,gs101-clock.yaml > F: Documentation/devicetree/bindings/phy/google,lga-usb-phy.yaml > +F: Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml > F: Documentation/devicetree/bindings/soc/google/google,gs101-pmu-intr-gen.yaml > F: Documentation/devicetree/bindings/usb/google,lga-dwc3.yaml > F: arch/arm64/boot/dts/exynos/google/ > > -- > 2.52.0.457.g6b5491de43-goog >