From patchwork Sat Dec 31 22:01:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samuel Holland X-Patchwork-Id: 638195 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B770C53210 for ; Sat, 31 Dec 2022 22:02:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235864AbiLaWCM (ORCPT ); Sat, 31 Dec 2022 17:02:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232131AbiLaWB5 (ORCPT ); Sat, 31 Dec 2022 17:01:57 -0500 Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 92A4964C2; Sat, 31 Dec 2022 14:01:53 -0800 (PST) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id D9B355C007F; Sat, 31 Dec 2022 17:01:50 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Sat, 31 Dec 2022 17:01:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sholland.org; h= cc:cc:content-transfer-encoding:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm3; t=1672524110; x=1672610510; bh=YD 1dCkE7VO7jGYHFV07b3XoPDh4wUwU4Z7xaUFzeNeU=; b=aqrB7VAWbjJJvLqgKn L3f92W1zxrXMwyrcy1mjHTF1Je352X9rxEeZMDLBmK42qOGSSH8hWKenyrsrC5Eb T3yZayisJBAKP3H4iTWSFvOCyOoGIJMu8oZXwxeafELygWwIMM7osWnP0gCxae4W T4jUjvodpZSGmyOexh+KfiRvaz2wmr8krVZoznMU0bCHlkrb+sPYFuaA1GE7PvlJ 91kGgl2yvZaqmhHsDghMSxPMP4T1EHD593yqsFgjRqY2AMHA9wmw7vcrc9zCbHm6 jo2g/DeFznGpFGZK55kOXn8pprPsX4qEg7yi2RppoFpsUxDlRwkaDY0sFN+EhDo5 ogcA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; t=1672524110; x=1672610510; bh=YD1dCkE7VO7jG YHFV07b3XoPDh4wUwU4Z7xaUFzeNeU=; b=b8gJn1LGOHujgdAyncX5kI8yWh0x1 S9NRtqRTDHj1IpijzpiohRas4bXySk0eTtxX4TDOCtRAO2OwPOHRHstWLugLwAR4 P/+WoM3VCxLfr0BQQubry+c8/apjF93Gcw5fo03z2pRQzNzkkGuzw51QC6/A+69p QNBmHSbSvMsD2vYyZx5u6XoYLPwCjNAHfO9LsxPuA8IieEU5Ei2UI5rRIZGs6dkj WF7D/7Lc1BIQXr5qrfdMpK+lhbuevqn6X5mel2OhF2IaxomZHHOlnG1dycdA3yLI c0V9iDtips2fyuP4dfRJs3CarrK1WjOdiKQrNB7Ec14cBIA5j32J0qC0A== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrieekgdduheeiucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufgrmhhu vghlucfjohhllhgrnhguuceoshgrmhhuvghlsehshhholhhlrghnugdrohhrgheqnecugg ftrfgrthhtvghrnhepudekteeuudehtdelteevgfduvddvjefhfedulefgudevgeeghefg udefiedtveetnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrh homhepshgrmhhuvghlsehshhholhhlrghnugdrohhrgh X-ME-Proxy: Feedback-ID: i0ad843c9:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sat, 31 Dec 2022 17:01:49 -0500 (EST) From: Samuel Holland To: Corentin Labbe , Herbert Xu , "David S . Miller" , Chen-Yu Tsai , Jernej Skrabec , Krzysztof Kozlowski , Rob Herring Cc: Samuel Holland , Albert Ou , Conor Dooley , Palmer Dabbelt , Paul Walmsley , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sunxi@lists.linux.dev Subject: [PATCH v2 1/3] dt-bindings: crypto: sun8i-ce: Add compatible for D1 Date: Sat, 31 Dec 2022 16:01:43 -0600 Message-Id: <20221231220146.646-2-samuel@sholland.org> X-Mailer: git-send-email 2.37.4 In-Reply-To: <20221231220146.646-1-samuel@sholland.org> References: <20221231220146.646-1-samuel@sholland.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org D1 has a crypto engine similar to the one in other Allwinner SoCs. Like H6, it has a separate MBUS clock gate. It also requires the internal RC oscillator to be enabled for the TRNG to return data, presumably because noise from the oscillator is used as an entropy source. This is likely the case for earlier variants as well, but it really only matters for H616 and newer SoCs, as H6 provides no way to disable the internal oscillator. Signed-off-by: Samuel Holland Reviewed-by: Krzysztof Kozlowski --- I noticed that the vendor driver has code to explicitly enable IOSC when using the TRNG on A83T (search SS_TRNG_OSC_ADDR), but that is covered by a different binding/driver in mainline. Changes in v2: - Add TRNG clock .../bindings/crypto/allwinner,sun8i-ce.yaml | 33 ++++++++++++++----- 1 file changed, 25 insertions(+), 8 deletions(-) diff --git a/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml b/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml index 026a9f9e1aeb..4287678aa79f 100644 --- a/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml +++ b/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml @@ -14,6 +14,7 @@ properties: enum: - allwinner,sun8i-h3-crypto - allwinner,sun8i-r40-crypto + - allwinner,sun20i-d1-crypto - allwinner,sun50i-a64-crypto - allwinner,sun50i-h5-crypto - allwinner,sun50i-h6-crypto @@ -29,6 +30,7 @@ properties: - description: Bus clock - description: Module clock - description: MBus clock + - description: TRNG clock (RC oscillator) minItems: 2 clock-names: @@ -36,6 +38,7 @@ properties: - const: bus - const: mod - const: ram + - const: trng minItems: 2 resets: @@ -44,19 +47,33 @@ properties: if: properties: compatible: - const: allwinner,sun50i-h6-crypto + enum: + - allwinner,sun20i-d1-crypto then: properties: clocks: - minItems: 3 + minItems: 4 clock-names: - minItems: 3 + minItems: 4 else: - properties: - clocks: - maxItems: 2 - clock-names: - maxItems: 2 + if: + properties: + compatible: + const: allwinner,sun50i-h6-crypto + then: + properties: + clocks: + minItems: 3 + maxItems: 3 + clock-names: + minItems: 3 + maxItems: 3 + else: + properties: + clocks: + maxItems: 2 + clock-names: + maxItems: 2 required: - compatible