From patchwork Wed Oct 9 02:43:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: JC Kuo X-Patchwork-Id: 11180255 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4470B17D4 for ; Wed, 9 Oct 2019 02:44:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 24340218AC for ; Wed, 9 Oct 2019 02:44:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="CqvwFXq+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730294AbfJICoE (ORCPT ); Tue, 8 Oct 2019 22:44:04 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:12377 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730248AbfJICoD (ORCPT ); Tue, 8 Oct 2019 22:44:03 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate15.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 08 Oct 2019 19:44:11 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 08 Oct 2019 19:44:01 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 08 Oct 2019 19:44:01 -0700 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 9 Oct 2019 02:44:01 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 9 Oct 2019 02:44:01 +0000 Received: from jckuo-lt.nvidia.com (Not Verified[10.19.101.249]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Tue, 08 Oct 2019 19:44:00 -0700 From: JC Kuo To: , , , CC: , , , , , JC Kuo Subject: [PATCH v4 3/5] dt-bindings: phy: tegra: Add Tegra194 support Date: Wed, 9 Oct 2019 10:43:41 +0800 Message-ID: <20191009024343.30218-4-jckuo@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191009024343.30218-1-jckuo@nvidia.com> References: <20191009024343.30218-1-jckuo@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1570589051; bh=z4ayTrGq2BsZWVL11Lgco56gdGHdhI/wTDj28xS3jzI=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=CqvwFXq+V9Sm0zIwP17vosa1Ur+jdMU7e/tvWxzRhfFutickDTTUhfv6PSoDKN4OK MI3JiLtMkQ9UXDQeR8h73+kwZT8jc+M+oKmnTho0X57SWxKV5DkYkbeFdMeFN8A8nt WvAlYgibEgYvS3efhlXm5upHIas65ryn73bhpqfoOuqsPofLN+nzcy+UoI+WxQP07q +uqRpmzo07EaMbU2r68I+NCDP/6q6Eez2uL9sARNQU9NfUF8mW3n5ksvgAxCqTqJGp ZvSOLLZBhwwWG5Np4FvZJbLXyvK97a6t7BMVHMaCDfbJaTrq8/m2/8LNoE4F76cTqI BFw8iggX3df1g== Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Extend the bindings to cover the set of features found in Tegra194. Note that, technically, there are four more supplies connected to the XUSB pad controller (DVDD_PEX, DVDD_PEX_PLL, HVDD_PEX and HVDD_PEX_PLL) , but the power sequencing requirements of Tegra194 require these to be under the control of the PMIC. Tegra194 XUSB PADCTL supports up to USB 3.1 Gen 2 speed, however, it is possible for some platforms have long signal trace that could not provide sufficient electrical environment for Gen 2 speed. To deal with this, a new device node property "nvidia,disable-gen2" was added to Tegra194 that be used to specifically disable Gen 2 speed for a particular USB 3.0 port so that the port can be limited to Gen 1 speed and avoid the instability. Signed-off-by: JC Kuo --- Changes in v4: none Changes in v3: none Changes in v2: - fix a typo .../bindings/phy/nvidia,tegra124-xusb-padctl.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt index 9fb682e47c29..59d870fa42e9 100644 --- a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt +++ b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt @@ -37,6 +37,7 @@ Required properties: - Tegra132: "nvidia,tegra132-xusb-padctl", "nvidia,tegra124-xusb-padctl" - Tegra210: "nvidia,tegra210-xusb-padctl" - Tegra186: "nvidia,tegra186-xusb-padctl" + - Tegra194: "nvidia,tegra194-xusb-padctl" - reg: Physical base address and length of the controller's registers. - resets: Must contain an entry for each entry in reset-names. - reset-names: Must include the following entries: @@ -62,6 +63,10 @@ For Tegra186: - vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V. - vddio-hsic-supply: HSIC PHY power supply. Must supply 1.2 V. +For Tegra194: +- avdd-usb-supply: USB I/Os, VBUS, ID, REXT, D+/D- power supply. Must supply + 3.3 V. +- vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V. Pad nodes: ========== @@ -154,6 +159,11 @@ For Tegra210, the list of valid PHY nodes is given below: - sata: sata-0 - functions: "usb3-ss", "sata" +For Tegra194, the list of valid PHY nodes is given below: +- usb2: usb2-0, usb2-1, usb2-2, usb2-3 + - functions: "xusb" +- usb3: usb3-0, usb3-1, usb3-2, usb3-3 + - functions: "xusb" Port nodes: =========== @@ -221,6 +231,9 @@ Optional properties: is internal. In the absence of this property the port is considered to be external. +- nvidia,disable-gen2: A boolean property whose presence determines that a port + should be limited to USB 3.1 Gen 1. This property is only for Tegra194. + For Tegra124 and Tegra132, the XUSB pad controller exposes the following ports: - 3x USB2: usb2-0, usb2-1, usb2-2 @@ -233,6 +246,9 @@ For Tegra210, the XUSB pad controller exposes the following ports: - 2x HSIC: hsic-0, hsic-1 - 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3 +For Tegra194, the XUSB pad controller exposes the following ports: +- 4x USB2: usb2-0, usb2-1, usb2-2, usb2-3 +- 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3 Examples: =========