From patchwork Thu Nov 11 04:06:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mathew McBride X-Patchwork-Id: 1553760 X-Patchwork-Delegate: apalos@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=traverse.com.au header.i=@traverse.com.au header.a=rsa-sha256 header.s=fm2 header.b=C8sKe13Q; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=DK2otGy0; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HqSqL4bQjz9s1l for ; Thu, 11 Nov 2021 15:07:42 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id D574E83983; Thu, 11 Nov 2021 05:07:14 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=traverse.com.au Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=traverse.com.au header.i=@traverse.com.au header.b="C8sKe13Q"; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.b="DK2otGy0"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id EB7ED83754; Thu, 11 Nov 2021 05:07:04 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS, SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id DCEF6836C5 for ; Thu, 11 Nov 2021 05:06:57 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=traverse.com.au Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=matt@traverse.com.au Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 1EBCB5C01AF; Wed, 10 Nov 2021 23:06:57 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Wed, 10 Nov 2021 23:06:57 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=traverse.com.au; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=5yzbRPTQHQkF6 SwBlh9zwsIV/AGxkdDXi9d4xr5dQO8=; b=C8sKe13QZp0WPInZ3wSRoVq3b9Gmh Xaqqiyxy7jTg0EyhOzvD4mA3Kormv+akhukCQQShvHWRAXOScDUbagi4f2/pCjSb zIw6CoJz6RbV2JKcplNIfOoJzaXm9vtLB8zMjMZxCv6oImqr8fSqRJgAgLDoWySx 5bKYcbHD36JlG9IvrRBsgoSvrsAHNUz8zAgyqwgQ9FbkxRoI695MdOjy0dCW9sjV jn9mZiIAFuAnmnZl/BBJ3iKaX6ueqU/Po37Rpg4Ly7hOD3lGJSPvR7jNejuCDrQz wYCxk9QibPv61rvnZ2Z4eZPME5Yf0O35iCQ0sYGsBNFrSqfIUVxu7mLAQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding: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=5yzbRPTQHQkF6SwBlh9zwsIV/AGxkdDXi9d4xr5dQO8=; b=DK2otGy0 ORNpnZqrp3TMi8SWvpBx3jdspsmK1HXOcsTQBAVSfR/YbkkgM94YW/YInBWGhYAw LPtTX0wJGm/OX5MqNjQODtp3SI78Iq6n3fpZeJKtqDRLoq+Mma1F/1DgCZJ/2uvg oZ70cu0gZmAst7KHqj0OBk1J+1V6P8hDzcjPzyPHvYuA8GdEkKsI+t+7Ro+PKyhB wdHqdx4xMDbMGgImBw6Hxm0JGmQA2y3FZqHIBLVLpGzSEexasrxFpYi2UT3aUEIB iPbHZq7prQ1jVeh3u6pEDn/rHE72aPAcNK64UsfFFnn0oFVOBVCUsyFsCO145PlE NJ/3ih3o/XQ2lg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddrvddtgdeifecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepofgrthhhvgif ucfotgeurhhiuggvuceomhgrthhtsehtrhgrvhgvrhhsvgdrtghomhdrrghuqeenucggtf frrghtthgvrhhnpeekleevteelvdduheetgfdvfeelueekffeggeethedtteeljeeivedv gfehjeejheenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhroh hmpehmrghtthesthhrrghvvghrshgvrdgtohhmrdgruh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 10 Nov 2021 23:06:55 -0500 (EST) From: Mathew McBride To: Ilias Apalodimas , eugen.hristev@microchip.com, sjg@chromium.org, u-boot@lists.denx.de Cc: Mathew McBride Subject: [PATCH v2 5/6] drivers: tpm: atmel_twi: implement get_desc operation Date: Thu, 11 Nov 2021 04:06:30 +0000 Message-Id: <20211111040631.21262-6-matt@traverse.com.au> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20211111040631.21262-1-matt@traverse.com.au> References: <20211111040631.21262-1-matt@traverse.com.au> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean Without get_desc, the tpm command will not provide a description of the device in 'tpm device' or 'tpm info'. Due to the characteristics of the Atmel TPM it isn't possible to determine certain attributes (e.g open/close status) without using the TPM stack (compare Infineon and ST TPM drivers), so just print out the chip model and udevice name as the identifier. Signed-off-by: Mathew McBride Reviewed-by: Simon Glass --- drivers/tpm/tpm_atmel_twi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/tpm/tpm_atmel_twi.c b/drivers/tpm/tpm_atmel_twi.c index 71b101406d..a5dfb34846 100644 --- a/drivers/tpm/tpm_atmel_twi.c +++ b/drivers/tpm/tpm_atmel_twi.c @@ -52,7 +52,10 @@ static int tpm_atmel_twi_close(struct udevice *dev) */ static int tpm_atmel_twi_get_desc(struct udevice *dev, char *buf, int size) { - return 0; + if (size < 50) + return -ENOSPC; + + return snprintf(buf, size, "Atmel AT97SC3204T I2C 1.2 TPM (%s)", dev->name); } /*