From patchwork Wed Jan 23 22:11:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Green X-Patchwork-Id: 1030213 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) 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=pass (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="NPRbm7pI"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43lKKb4Yq0z9s3l for ; Thu, 24 Jan 2019 09:12:51 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726693AbfAWWMu (ORCPT ); Wed, 23 Jan 2019 17:12:50 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:40881 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726820AbfAWWMK (ORCPT ); Wed, 23 Jan 2019 17:12:10 -0500 Received: by mail-pf1-f194.google.com with SMTP id i12so1875761pfo.7 for ; Wed, 23 Jan 2019 14:12:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=mnJ9pOfeoLrRRmLw97XaiwPeSNBQRApiw6Xy7Dc0LLg=; b=NPRbm7pISFFHGvIToej044RIAiArthXEdYhkcetMulujC9H3ASl/+on/hj25jV+GsK nJcfntPb9r6g57TUWCZCI9uRJDcg9S9ClCTMUYuShZ0NTqI92pDytsYQgkWiMFqDPBwB TThXu58/zHO9sveoZZj4mu/aRT3aWHCV+S88E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=mnJ9pOfeoLrRRmLw97XaiwPeSNBQRApiw6Xy7Dc0LLg=; b=ecH6JJ9av2/u0QNZ8piMF2gzNcr5dBlCdpFpQTi4FTFFGZJF8MOU5y+zK6zhcVJnf/ bYrQYmp+v6USpUV9hqTbhx/OdUSm0+pNPt3zm/nK4UWUDClE4VWZaTz1sMpRkMM3gbsv V7EDAraQZfq1Pyq2nqvi9iEupQD11OVMthbu3QfMcXK7uwhUcR7vKbNUv4wKWFbwVfMc L4hCKb/EdY4QOBNnN9Hh7JEQUaDGvZ54kfVq5bcOQSJh6xl+UnDzkey0mtc8khKD5Jsw 5feIhwqhaL5qUYl4+Ivs3UZUNiTvKsBJQGRdEvQBqBNbfx/gRmGJd7jbzpA8sJtCn9Z2 nsxA== X-Gm-Message-State: AJcUukdPGdmTn81Ny8P+7h3PN0h9n/DIh7hit5PvlM1Z7DRaeL8fA3di iNplorChj8YSXHRxgjANilQ8Pg== X-Google-Smtp-Source: ALg8bN6dq4y1P6J9DWWTH1fls/a2uIL4FiXEP0+jWadWvkIrwOOTX7+8GFOY+r0FTqwUE/a6YNWBVg== X-Received: by 2002:a63:b649:: with SMTP id v9mr3645160pgt.436.1548281529187; Wed, 23 Jan 2019 14:12:09 -0800 (PST) Received: from evgreen2.mtv.corp.google.com ([2620:15c:202:201:ffda:7716:9afc:1301]) by smtp.gmail.com with ESMTPSA id d18sm27927943pfj.47.2019.01.23.14.12.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 23 Jan 2019 14:12:08 -0800 (PST) From: Evan Green To: Andy Gross , Rob Herring , Kishon Vijay Abraham I Cc: Can Guo , Douglas Anderson , Asutosh Das , Stephen Boyd , Vivek Gautam , Evan Green , devicetree@vger.kernel.org, Mark Rutland , linux-kernel@vger.kernel.org Subject: [PATCH v2 3/9] dt-bindings: phy: qcom-ufs: Add resets property Date: Wed, 23 Jan 2019 14:11:31 -0800 Message-Id: <20190123221137.41722-4-evgreen@chromium.org> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20190123221137.41722-1-evgreen@chromium.org> References: <20190123221137.41722-1-evgreen@chromium.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add a resets property to the PHY that represents the PHY reset register in the UFS controller itself. This better describes the complete specification of the PHY, and allows the PHY to perform its initialization in a single function, rather than relying on back-channel sequencing of initialization through the PHY framework. Signed-off-by: Evan Green Reviewed-by: Rob Herring Reviewed-by: Stephen Boyd --- Changes in v2: - Added resets to example (Stephen). Documentation/devicetree/bindings/ufs/ufs-qcom.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt index 21d9a93db2e97..fd59f93e95562 100644 --- a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt +++ b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt @@ -29,6 +29,7 @@ Optional properties: - vdda-pll-max-microamp : specifies max. load that can be drawn from pll supply - vddp-ref-clk-supply : phandle to UFS device ref_clk pad power supply - vddp-ref-clk-max-microamp : specifies max. load that can be drawn from this supply +- resets : specifies the PHY reset in the UFS controller Example: @@ -51,9 +52,11 @@ Example: <&clock_gcc clk_ufs_phy_ldo>, <&clock_gcc clk_gcc_ufs_tx_cfg_clk>, <&clock_gcc clk_gcc_ufs_rx_cfg_clk>; + resets = <&ufshc 0>; }; - ufshc@fc598000 { + ufshc: ufshc@fc598000 { + #reset-cells = <1>; ... phys = <&ufsphy1>; phy-names = "ufsphy";