From patchwork Sun Nov 10 16:21:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amir Mizinski X-Patchwork-Id: 1192641 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47B01c6sXsz9sP4 for ; Mon, 11 Nov 2019 03:33:24 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727078AbfKJQdX (ORCPT ); Sun, 10 Nov 2019 11:33:23 -0500 Received: from 212.199.177.27.static.012.net.il ([212.199.177.27]:44397 "EHLO herzl.nuvoton.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726832AbfKJQdW (ORCPT ); Sun, 10 Nov 2019 11:33:22 -0500 X-Greylist: delayed 642 seconds by postgrey-1.27 at vger.kernel.org; Sun, 10 Nov 2019 11:33:15 EST Received: from taln60.nuvoton.co.il (ntil-fw [212.199.177.25]) by herzl.nuvoton.co.il (8.13.8/8.13.8) with ESMTP id xAAGMOMJ013909; Sun, 10 Nov 2019 18:22:24 +0200 Received: by taln60.nuvoton.co.il (Postfix, from userid 10140) id 463C560275; Sun, 10 Nov 2019 18:22:24 +0200 (IST) From: amirmizi6@gmail.com To: Eyal.Cohen@nuvoton.com, jarkko.sakkinen@linux.intel.com, oshrialkoby85@gmail.com, alexander.steffen@infineon.com, robh+dt@kernel.org, mark.rutland@arm.com, peterhuewe@gmx.de, jgg@ziepe.ca, arnd@arndb.de, gregkh@linuxfoundation.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org, oshri.alkoby@nuvoton.com, tmaimon77@gmail.com, gcwilson@us.ibm.com, kgoldman@us.ibm.com, ayna@linux.vnet.ibm.com, Dan.Morav@nuvoton.com, oren.tanami@nuvoton.com, shmulik.hagar@nuvoton.com, amir.mizinski@nuvoton.com, Amir Mizinski Subject: [PATCH v1 4/5] dt-bindings: tpm: Add the TPM TIS I2C device tree binding documentaion Date: Sun, 10 Nov 2019 18:21:36 +0200 Message-Id: <20191110162137.230913-5-amirmizi6@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191110162137.230913-1-amirmizi6@gmail.com> References: <20191110162137.230913-1-amirmizi6@gmail.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Amir Mizinski this file aim at documenting TPM TIS I2C related dt-bindings for the I2C PTP based Physical TPM. Signed-off-by: Amir Mizinski --- .../bindings/security/tpm/tpm_tis_i2c.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/security/tpm/tpm_tis_i2c.txt diff --git a/Documentation/devicetree/bindings/security/tpm/tpm_tis_i2c.txt b/Documentation/devicetree/bindings/security/tpm/tpm_tis_i2c.txt new file mode 100644 index 0000000..7d5a69e --- /dev/null +++ b/Documentation/devicetree/bindings/security/tpm/tpm_tis_i2c.txt @@ -0,0 +1,24 @@ +* Device Tree Bindings for I2C PTP based Trusted Platform Module(TPM) + +The TCG defines hardware protocol, registers and interface (based +on the TPM Interface Specification) for accessing TPM devices +implemented with an I2C interface. + +Refer to the 'I2C Interface Definition' section in 'TCG PC Client +PlatformTPMProfile(PTP) Specification' publication for specification. + +Required properties: + +- compatible : Should be "tcg,tpm_tis-i2c" +- reg : Address on the bus +- tpm-pirq : Input gpio pin, used for host interrupts + +Example (for Raspberry Pie 3 Board with Nuvoton's NPCT75X (2.0) +------------------------------------------------------------------- + +tpm_tis-i2c: tpm_tis-i2c@2e { + + compatible = "tcg,tpm_tis-i2c"; + reg = <0x2e>; + tpm-pirq = <&gpio 24 GPIO_ACTIVE_HIGH>; +};