From patchwork Sat Jul 17 18:21:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383789 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02118C636CA for ; Sat, 17 Jul 2021 18:24:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D04DE61153 for ; Sat, 17 Jul 2021 18:24:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235133AbhGQS0D (ORCPT ); Sat, 17 Jul 2021 14:26:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235010AbhGQS0B (ORCPT ); Sat, 17 Jul 2021 14:26:01 -0400 Received: from mail-lj1-x235.google.com (mail-lj1-x235.google.com [IPv6:2a00:1450:4864:20::235]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE581C061764; Sat, 17 Jul 2021 11:23:03 -0700 (PDT) Received: by mail-lj1-x235.google.com with SMTP id a6so18852518ljq.3; Sat, 17 Jul 2021 11:23:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3PQPHGOW6QQhg7v1jHH53jvk1y+aGZu+fHQa7m9Qum4=; b=Jr3TbJiwvWhTMC8dCnumhiILuOH+n9ye+w+vU3gvE108oZI6hgkbGMRORtFZZvDsps 6w8TURgaU6Ccwz7lOqW+Pj+9xoasQIWFwHqm5WKX3J/jhLIPWoyUMXyNp4Xopk/AJ9Kw 0/1KsAiipdkbbymGsHCKuOZSrteCXuPO1SD3d+LL5GpTtOGeO0tA/Wh8raXm8pOq+mxI KgEqKpXGgYbGdneBeFmK3/03hjl6wwkcVc7cprcCzSxHzr/IiXGIy3o03XmezzMkcUSw v6shamDyf7pVajzSWlCCiBA+/4lBFnKUY+Y53kXgtDXC2A0kCKSKMtSbq92OtxNtDOAh 9nDA== 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:mime-version:content-transfer-encoding; bh=3PQPHGOW6QQhg7v1jHH53jvk1y+aGZu+fHQa7m9Qum4=; b=Fv3L0YWLahCpkdY8lxkOr7g/zySGZQXYjHx/MtO3FTK3lby0QNldxGZKU1OC5Tscn6 d4+t3+sImaJE5NHUrqSno4Jhf2vec70F6PJ3Xy4o1YmNrWD4HnxNyLVHmQ0jSJb51A9k xV4UoQujh42m08BWEbPyhcidhFHBTmpW76+MCDvSlM7yS3JmZUHjvv3HwWc4XAsQ0YOt o2M5BfGr9KjVGDxNK9a2cBNmC8/TXgbK0e/oFVEZmNvQLE0NsbXgoSK8YK0s9H9TBZWa oJOh1cUPlbYShW3qP9d1O0KwtluVySYZ7KkzlqpC/yrndSGPC/LNZnu2rnytlctljTM6 9CUw== X-Gm-Message-State: AOAM530+eU3nq575P/fT14iwDyF7nGV1mtRIvnD3LVXsuik/HKc09SI2 vcqSyV6lc6SorEmCRIe5scU= X-Google-Smtp-Source: ABdhPJy6qR7U6zj+/xGIc3KZedMBqzQ0dm9+gzXIyPCz+0sH52J8e05Cg/z3NSztSlNADl/rOY8VlQ== X-Received: by 2002:a2e:2c0d:: with SMTP id s13mr14394426ljs.439.1626546182149; Sat, 17 Jul 2021 11:23:02 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:01 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 01/12] dt-bindings: phy: tegra20-usb-phy: Convert to schema Date: Sat, 17 Jul 2021 21:21:23 +0300 Message-Id: <20210717182134.30262-2-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Convert NVIDIA Tegra20 USB PHY binding to schema. Reviewed-by: Rob Herring Signed-off-by: Dmitry Osipenko --- .../bindings/phy/nvidia,tegra20-usb-phy.txt | 74 ---- .../bindings/phy/nvidia,tegra20-usb-phy.yaml | 357 ++++++++++++++++++ 2 files changed, 357 insertions(+), 74 deletions(-) delete mode 100644 Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt create mode 100644 Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt b/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt deleted file mode 100644 index 1aa6f2674af5..000000000000 --- a/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt +++ /dev/null @@ -1,74 +0,0 @@ -Tegra SOC USB PHY - -The device node for Tegra SOC USB PHY: - -Required properties : - - compatible : For Tegra20, must contain "nvidia,tegra20-usb-phy". - For Tegra30, must contain "nvidia,tegra30-usb-phy". Otherwise, must contain - "nvidia,-usb-phy" plus at least one of the above, where is - tegra114, tegra124, tegra132, or tegra210. - - reg : Defines the following set of registers, in the order listed: - - The PHY's own register set. - Always present. - - The register set of the PHY containing the UTMI pad control registers. - Present if-and-only-if phy_type == utmi. - - phy_type : Should be one of "utmi", "ulpi" or "hsic". - - clocks : Defines the clocks listed in the clock-names property. - - clock-names : The following clock names must be present: - - reg: The clock needed to access the PHY's own registers. This is the - associated EHCI controller's clock. Always present. - - pll_u: PLL_U. Always present. - - timer: The timeout clock (clk_m). Present if phy_type == utmi. - - utmi-pads: The clock needed to access the UTMI pad control registers. - Present if phy_type == utmi. - - ulpi-link: The clock Tegra provides to the ULPI PHY (usually pad DAP_MCLK2 - with pad group aka "nvidia,pins" cdev2 and pin mux option config aka - "nvidia,function" pllp_out4). - Present if phy_type == ulpi, and ULPI link mode is in use. - - resets : Must contain an entry for each entry in reset-names. - See ../reset/reset.txt for details. - - reset-names : Must include the following entries: - - usb: The PHY's own reset signal. - - utmi-pads: The reset of the PHY containing the chip-wide UTMI pad control - registers. Required even if phy_type == ulpi. - -Required properties for phy_type == ulpi: - - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. - -Required PHY timing params for utmi phy, for all chips: - - nvidia,hssync-start-delay : Number of 480 Mhz clock cycles to wait before - start of sync launches RxActive - - nvidia,elastic-limit : Variable FIFO Depth of elastic input store - - nvidia,idle-wait-delay : Number of 480 Mhz clock cycles of idle to wait - before declare IDLE. - - nvidia,term-range-adj : Range adjusment on terminations - - Either one of the following for HS driver output control: - - nvidia,xcvr-setup : integer, uses the provided value. - - nvidia,xcvr-setup-use-fuses : boolean, indicates that the value is read - from the on-chip fuses - If both are provided, nvidia,xcvr-setup-use-fuses takes precedence. - - nvidia,xcvr-lsfslew : LS falling slew rate control. - - nvidia,xcvr-lsrslew : LS rising slew rate control. - -Required PHY timing params for utmi phy, only on Tegra30 and above: - - nvidia,xcvr-hsslew : HS slew rate control. - - nvidia,hssquelch-level : HS squelch detector level. - - nvidia,hsdiscon-level : HS disconnect detector level. - -Optional properties: - - nvidia,has-legacy-mode : boolean indicates whether this controller can - operate in legacy mode (as APX 2500 / 2600). In legacy mode some - registers are accessed through the APB_MISC base address instead of - the USB controller. - - nvidia,is-wired : boolean. Indicates whether we can do certain kind of power - optimizations for the devices that are always connected. e.g. modem. - - dr_mode : dual role mode. Indicates the working mode for the PHY. Can be - "host", "peripheral", or "otg". Defaults to "host" if not defined. - host means this is a host controller - peripheral means it is device controller - otg means it can operate as either ("on the go") - - nvidia,has-utmi-pad-registers : boolean indicates whether this controller - contains the UTMI pad control registers common to all USB controllers. - -VBUS control (required for dr_mode == otg, optional for dr_mode == host): - - vbus-supply: regulator for VBUS diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml b/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml new file mode 100644 index 000000000000..593187234e6a --- /dev/null +++ b/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml @@ -0,0 +1,357 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/nvidia,tegra20-usb-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra USB PHY + +maintainers: + - Dmitry Osipenko + - Jon Hunter + - Thierry Reding + +properties: + compatible: + oneOf: + - items: + - enum: + - nvidia,tegra124-usb-phy + - nvidia,tegra114-usb-phy + - enum: + - nvidia,tegra30-usb-phy + - items: + - enum: + - nvidia,tegra30-usb-phy + - nvidia,tegra20-usb-phy + + reg: + minItems: 1 + maxItems: 2 + description: | + PHY0 and PHY2 share power and ground, PHY0 contains shared registers. + PHY0 and PHY2 must specify two register sets, where the first set is + PHY own registers and the second set is the PHY0 registers. + + clocks: + anyOf: + - items: + - description: Registers clock + - description: Main PHY clock + + - items: + - description: Registers clock + - description: Main PHY clock + - description: ULPI PHY clock + + - items: + - description: Registers clock + - description: Main PHY clock + - description: UTMI pads control registers clock + + - items: + - description: Registers clock + - description: Main PHY clock + - description: UTMI timeout clock + - description: UTMI pads control registers clock + + clock-names: + oneOf: + - items: + - const: reg + - const: pll_u + + - items: + - const: reg + - const: pll_u + - const: ulpi-link + + - items: + - const: reg + - const: pll_u + - const: utmi-pads + + - items: + - const: reg + - const: pll_u + - const: timer + - const: utmi-pads + + resets: + oneOf: + - maxItems: 1 + description: PHY reset + + - items: + - description: PHY reset + - description: UTMI pads reset + + reset-names: + oneOf: + - const: usb + + - items: + - const: usb + - const: utmi-pads + + "#phy-cells": + const: 0 + + phy_type: + $ref: /schemas/types.yaml#/definitions/string + enum: [utmi, ulpi, hsic] + + dr_mode: + $ref: /schemas/types.yaml#/definitions/string + enum: [host, peripheral, otg] + default: host + + vbus-supply: + description: Regulator controlling USB VBUS. + + nvidia,has-legacy-mode: + description: | + Indicates whether this controller can operate in legacy mode + (as APX 2500 / 2600). In legacy mode some registers are accessed + through the APB_MISC base address instead of the USB controller. + type: boolean + + nvidia,is-wired: + description: | + Indicates whether we can do certain kind of power optimizations for + the devices that are always connected. e.g. modem. + type: boolean + + nvidia,has-utmi-pad-registers: + description: | + Indicates whether this controller contains the UTMI pad control + registers common to all USB controllers. + type: boolean + + nvidia,hssync-start-delay: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: | + Number of 480 MHz clock cycles to wait before start of sync launches + RxActive. + + nvidia,elastic-limit: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: Variable FIFO Depth of elastic input store. + + nvidia,idle-wait-delay: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: | + Number of 480 MHz clock cycles of idle to wait before declare IDLE. + + nvidia,term-range-adj: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Range adjustment on terminations. + + nvidia,xcvr-setup: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 127 + description: Input of XCVR cell, HS driver output control. + + nvidia,xcvr-setup-use-fuses: + description: Indicates that the value is read from the on-chip fuses. + type: boolean + + nvidia,xcvr-lsfslew: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 3 + description: LS falling slew rate control. + + nvidia,xcvr-lsrslew: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 3 + description: LS rising slew rate control. + + nvidia,xcvr-hsslew: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 511 + description: HS slew rate control. + + nvidia,hssquelch-level: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 3 + description: HS squelch detector level. + + nvidia,hsdiscon-level: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 7 + description: HS disconnect detector level. + + nvidia,phy-reset-gpio: + maxItems: 1 + description: GPIO used to reset the PHY. + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + - "#phy-cells" + - phy_type + +additionalProperties: false + +allOf: + - if: + properties: + phy_type: + const: utmi + + then: + properties: + reg: + minItems: 2 + maxItems: 2 + + resets: + maxItems: 2 + + reset-names: + maxItems: 2 + + required: + - nvidia,hssync-start-delay + - nvidia,elastic-limit + - nvidia,idle-wait-delay + - nvidia,term-range-adj + - nvidia,xcvr-lsfslew + - nvidia,xcvr-lsrslew + + anyOf: + - required: ["nvidia,xcvr-setup"] + - required: ["nvidia,xcvr-setup-use-fuses"] + + if: + properties: + compatible: + contains: + const: nvidia,tegra30-usb-phy + + then: + properties: + clocks: + maxItems: 3 + + clock-names: + items: + - const: reg + - const: pll_u + - const: utmi-pads + + required: + - nvidia,xcvr-hsslew + - nvidia,hssquelch-level + - nvidia,hsdiscon-level + + else: + properties: + clocks: + maxItems: 4 + + clock-names: + items: + - const: reg + - const: pll_u + - const: timer + - const: utmi-pads + + - if: + properties: + phy_type: + const: ulpi + + then: + properties: + reg: + minItems: 1 + maxItems: 1 + + clocks: + minItems: 2 + maxItems: 3 + + clock-names: + minItems: 2 + maxItems: 3 + + oneOf: + - items: + - const: reg + - const: pll_u + + - items: + - const: reg + - const: pll_u + - const: ulpi-link + + resets: + minItems: 1 + maxItems: 2 + + reset-names: + minItems: 1 + maxItems: 2 + +examples: + - | + #include + + usb-phy@7d008000 { + compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; + reg = <0x7d008000 0x4000>, + <0x7d000000 0x4000>; + phy_type = "utmi"; + clocks = <&tegra_car TEGRA124_CLK_USB3>, + <&tegra_car TEGRA124_CLK_PLL_U>, + <&tegra_car TEGRA124_CLK_USBD>; + clock-names = "reg", "pll_u", "utmi-pads"; + resets = <&tegra_car 59>, <&tegra_car 22>; + reset-names = "usb", "utmi-pads"; + #phy-cells = <0>; + nvidia,hssync-start-delay = <0>; + nvidia,idle-wait-delay = <17>; + nvidia,elastic-limit = <16>; + nvidia,term-range-adj = <6>; + nvidia,xcvr-setup = <9>; + nvidia,xcvr-lsfslew = <0>; + nvidia,xcvr-lsrslew = <3>; + nvidia,hssquelch-level = <2>; + nvidia,hsdiscon-level = <5>; + nvidia,xcvr-hsslew = <12>; + }; + + - | + #include + + usb-phy@c5004000 { + compatible = "nvidia,tegra20-usb-phy"; + reg = <0xc5004000 0x4000>; + phy_type = "ulpi"; + clocks = <&tegra_car TEGRA20_CLK_USB2>, + <&tegra_car TEGRA20_CLK_PLL_U>, + <&tegra_car TEGRA20_CLK_CDEV2>; + clock-names = "reg", "pll_u", "ulpi-link"; + resets = <&tegra_car 58>, <&tegra_car 22>; + reset-names = "usb", "utmi-pads"; + #phy-cells = <0>; + }; From patchwork Sat Jul 17 18:21:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383767 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28FF1C636CA for ; Sat, 17 Jul 2021 18:23:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 129DD61164 for ; Sat, 17 Jul 2021 18:23:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235010AbhGQS0F (ORCPT ); Sat, 17 Jul 2021 14:26:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235022AbhGQS0C (ORCPT ); Sat, 17 Jul 2021 14:26:02 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A17EC061765; Sat, 17 Jul 2021 11:23:04 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id g8so15764719lfh.8; Sat, 17 Jul 2021 11:23:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KGqBi/7wx0DIJyQ6zM9lk4bwmMrSqvbRFEiAuewm09c=; b=ugjrXjV3ScfVbF4QlFRROL7U62ARM3lX69dozp/g2HtnHb790enf9ytJPIV0q1F0f9 xl4yPm0Ied2NeSdHRfXlyU6aroOPwDY/zFhumlopFLxjFh5afllJqW2pIvAK/L3j6Oh1 94KnHBupfeRTmV0yeaFAPTXTyv1vFAx3Wen3QL/5Cz/TpU5N0ITPRvtkol+5AtRaH3WS c7dMEh4dAAXIGEe2M0CgNo7Va9PH7TQyPsP2MZK5U7o1O8JmOJRNyaSCdE6pg5h3f2Fg N6Zeakt88Ev8FWdkcLSBecBweGUsCvnvSPezwBH/eIIKyToUAVAkAe8RJK6lzHfm9z1j i/rQ== 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:mime-version:content-transfer-encoding; bh=KGqBi/7wx0DIJyQ6zM9lk4bwmMrSqvbRFEiAuewm09c=; b=IcsmhdZ4VNLcqnWp2LfgcTDiFRPQGzTgEQgtPGjEX3dYBp/WtI/eVPovluGkODgzfy 9MjbIXzoDkmKmS36Pzdk4rqillDvywztHTe9VY5MWxEutu06XcubRNWs9PSB/u92aBDR 5xbxxIVONH0U+ByqTBPaxivD4cOEaIg5jU355UUdIyiD29uoXeXfDqNcT63OUbnIbCTL J0cv97jqH0BrmftNY41I1yAE9UTJmjeh0lmlfwYktIkuzsgpbhqHhvKeK1XRqv1BoXYk gfxry2ehs3ZxKmzVIXzrxa+4heF9yHNh/TT68h55UbuYuBYh13ZMj7Z8GR6ylTXZqtif AOOQ== X-Gm-Message-State: AOAM533G/aRIshbEkg9sLbdfwycXocbWUi9Ti0fWd3ygGiq4PBnr2jWl ZbybOi33p3bgJX/Y25bM0j0= X-Google-Smtp-Source: ABdhPJwa8G/trDYqtkZHz301cFFe8bx4TlPv1s/w1m5YNBJYV3EJKRs/6PbS0q71now9L4Wy/cxcYw== X-Received: by 2002:a19:6e01:: with SMTP id j1mr12837163lfc.407.1626546182932; Sat, 17 Jul 2021 11:23:02 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:02 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 02/12] dt-bindings: phy: tegra20-usb-phy: Document properties needed for OTG mode Date: Sat, 17 Jul 2021 21:21:24 +0300 Message-Id: <20210717182134.30262-3-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In order to support OTG mode we need these new properties: - interrupt - nvidia,pmc Add the new properties to the binding. Signed-off-by: Dmitry Osipenko Reviewed-by: Rob Herring --- .../bindings/phy/nvidia,tegra20-usb-phy.yaml | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml b/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml index 593187234e6a..dfde0eaf66e1 100644 --- a/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml +++ b/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml @@ -77,6 +77,9 @@ properties: - const: timer - const: utmi-pads + interrupts: + maxItems: 1 + resets: oneOf: - maxItems: 1 @@ -199,6 +202,15 @@ properties: maxItems: 1 description: GPIO used to reset the PHY. + nvidia,pmc: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: Phandle to Power Management controller. + - description: USB controller ID. + description: + Phandle to Power Management controller. + required: - compatible - reg @@ -320,6 +332,7 @@ examples: compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x7d008000 0x4000>, <0x7d000000 0x4000>; + interrupts = <0 97 4>; phy_type = "utmi"; clocks = <&tegra_car TEGRA124_CLK_USB3>, <&tegra_car TEGRA124_CLK_PLL_U>, @@ -338,6 +351,7 @@ examples: nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; + nvidia,pmc = <&tegra_pmc 2>; }; - | @@ -346,6 +360,7 @@ examples: usb-phy@c5004000 { compatible = "nvidia,tegra20-usb-phy"; reg = <0xc5004000 0x4000>; + interrupts = <0 21 4>; phy_type = "ulpi"; clocks = <&tegra_car TEGRA20_CLK_USB2>, <&tegra_car TEGRA20_CLK_PLL_U>, @@ -354,4 +369,5 @@ examples: resets = <&tegra_car 58>, <&tegra_car 22>; reset-names = "usb", "utmi-pads"; #phy-cells = <0>; + nvidia,pmc = <&tegra_pmc 1>; }; From patchwork Sat Jul 17 18:21:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383769 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3D4FC6377A for ; Sat, 17 Jul 2021 18:23:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC49561154 for ; Sat, 17 Jul 2021 18:23:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235379AbhGQS0J (ORCPT ); Sat, 17 Jul 2021 14:26:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235123AbhGQS0D (ORCPT ); Sat, 17 Jul 2021 14:26:03 -0400 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30057C061762; Sat, 17 Jul 2021 11:23:06 -0700 (PDT) Received: by mail-lf1-x130.google.com with SMTP id v6so21608595lfp.6; Sat, 17 Jul 2021 11:23:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=1oahTHnDPuRKVMxkoilhRCRaRgS46Q75QLsZx7nz1p8=; b=DNxeSDBL7K4KBQcJd0eSSUXf5VVWYYlP4/RS0R77Ua8Vfv3bRUUOS60owl1Kg95f2u 1uz2wourtbvLAIFVOHuGc2Xeau0kL3YuVSEqFSjOf/wZABTogaHBEtp/ntOdBSazF4Fo VzejZdC4FJhMAOnmzb5PUpDi2j2WmlcBUKFGjAieHRBQknyoYTpHyxd3j3DOdT6wFNGB an/CVwU5GGIZCAREjjhKGOuWj7f3wQNCbW91br0ytJL4inkXgeTIi+ydpIpSJGFo4F1k rR7BtmUCkRwHnYh8u+l/7woqycGITNM9qZvDAGHiQPiwfASthQ6UKdVq7ATIs913FXSI nPqw== 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:mime-version:content-transfer-encoding; bh=1oahTHnDPuRKVMxkoilhRCRaRgS46Q75QLsZx7nz1p8=; b=ckGZgqudqp0nVf3BihrF4dVS//02i2aJAr3v95VZSbZaDKPo8ABhIpqZIh37hmLhlR s42eSQ2nftlkJUYiBwXsH9GRuvoReBHaOrPgEfXbxVQHvGX0vvvJa3RokOzLWsbGIodl CepkMRJx5ReKEpXibTKpsKWqy9xE2ZFvVz/7XNxzQRpNvpjgYevgT2Oi69fAl5slXzm+ SbKfcXuUS2zaqMHjzXkhhyD4vql0e1fS6NCSKW+Kr1DyfqVkZsb+0NO/pG2unKdHi8dq idbEFCB+dAWjah6HDsD2jZH2yMV/kMBJyMhNSAxnzggJXWNbd2KVyZNI+yma6DCv2Luv xvsg== X-Gm-Message-State: AOAM532YDv+iSgwP/tc1DTO4RHLSV4yw4jD3Qv/UNKJPSFS2JxRsI2F8 4T+PKbBIbR3Rl1j+omO3qxg= X-Google-Smtp-Source: ABdhPJzwO7z/sPR86OYZj+fOZeAXXRi4Tt807J9o7FKXlX7wsObnWRP9XwYzDpLQJ5NllW+uaBAtew== X-Received: by 2002:a19:5e04:: with SMTP id s4mr12734581lfb.314.1626546184080; Sat, 17 Jul 2021 11:23:04 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:03 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 03/12] soc/tegra: pmc: Expose USB regmap to all SoCs Date: Sat, 17 Jul 2021 21:21:25 +0300 Message-Id: <20210717182134.30262-4-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org All Tegra SoCs prior to Tegra186 have USB power controls within the Power Management controller. These controls need to be configured by USB driver. Expose the regmap to these SoCs. Signed-off-by: Dmitry Osipenko --- drivers/soc/tegra/pmc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 3d31abb0ed71..5085106c4f53 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -3202,7 +3202,7 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = { .pmc_clks_data = NULL, .num_pmc_clks = 0, .has_blink_output = true, - .has_usb_sleepwalk = false, + .has_usb_sleepwalk = true, }; static const char * const tegra30_powergates[] = { @@ -3263,7 +3263,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, - .has_usb_sleepwalk = false, + .has_usb_sleepwalk = true, }; static const char * const tegra114_powergates[] = { @@ -3320,7 +3320,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = { .pmc_clks_data = tegra_pmc_clks_data, .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data), .has_blink_output = true, - .has_usb_sleepwalk = false, + .has_usb_sleepwalk = true, }; static const char * const tegra124_powergates[] = { From patchwork Sat Jul 17 18:21:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383779 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84FBBC636C9 for ; Sat, 17 Jul 2021 18:23:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E07E61153 for ; Sat, 17 Jul 2021 18:23:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235433AbhGQS0K (ORCPT ); Sat, 17 Jul 2021 14:26:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235125AbhGQS0D (ORCPT ); Sat, 17 Jul 2021 14:26:03 -0400 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 909BEC061764; Sat, 17 Jul 2021 11:23:06 -0700 (PDT) Received: by mail-lf1-x134.google.com with SMTP id y42so21617123lfa.3; Sat, 17 Jul 2021 11:23:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Y3OZLq2rPlmjb4eTZVA72YHD2U1D5fyvvBeZCksHTBM=; b=AFYE4MWu2LD8yqc/DOWsG5KH4C+QlMgmvCZKJE7qo7zIn4gCC0RSFqAwzH5TuWLC6l liogtvCcXGBzAscd77plfr2kGlv/oyNJ7wFMbfy3cqx+QyNDA0BeKWGjAHIYNZDGNiTB aDV1fIJosWdr+IRZQi4TnCquXhJvVSsqpHDrgYzvoLZcZAUqes4yxcZZSYqVWbLX5Mj4 7y1+VNk6pr5NJOGdmmHpgZPObydw/2IkUAmqL2ddxvY1toUgV9C8oecGUiirXxvHEDqL yKO+3iRRD5Ag8vRWr8TYek7x7uE0UduhrtEP5/FAqn3jdAfoN4CEssxqDCjSLbs2BEW3 Lnvw== 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:mime-version:content-transfer-encoding; bh=Y3OZLq2rPlmjb4eTZVA72YHD2U1D5fyvvBeZCksHTBM=; b=UXx+BiZTwjOdpeQ8lkNRO1XWkt/yw4OOXQV7YRmVuxtZlENRQlixs9+HfVdynR+/Ex BH6zDRa740biqx1T7t5c3spqxyyby5JBNtA19y1x/Z86R4qXGgGyJxwAiYlH5iF58G34 U5LffoqWJ2tJRD8ILRb6ps3A9HL+9WQWxfVBX79kbz0zuYhZT1m1K34mbZfCRboNAt2M TCtuyq2FWYonIhifezhc2On0cXSdq9OfI7o1toCwjjk7XluBqyZEOlU66HBY6lZatam2 8Rmd6CayNYDknsLaH57m37g2YMhYk+qd3GzH8xFep1SqMYOYqI+72vfTDdIUFubsoZMO ojKg== X-Gm-Message-State: AOAM533CVmAcHhtlBId3K+EAstnVp7GD9p7Spk6LNgwC6/OOm9dQgJW4 OeNNBwfgfQpAhL56uICZTwY= X-Google-Smtp-Source: ABdhPJyJ9ak0rHyiDZg1Cvjlt9fd1TvUWYBIhMERuPp4gaGpYQlr8Gt6ETrpR4OLlmt6PwDjEbj9Eg== X-Received: by 2002:a05:6512:3c93:: with SMTP id h19mr12297571lfv.512.1626546184878; Sat, 17 Jul 2021 11:23:04 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:04 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 04/12] usb: phy: tegra: Support OTG mode programming Date: Sat, 17 Jul 2021 21:21:26 +0300 Message-Id: <20210717182134.30262-5-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Support programming USB PHY into OTG mode. Signed-off-by: Dmitry Osipenko --- drivers/usb/phy/phy-tegra-usb.c | 197 +++++++++++++++++++++++++++++- include/linux/usb/tegra_usb_phy.h | 5 + 2 files changed, 197 insertions(+), 5 deletions(-) diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c index c0f432d509aa..d6197a462749 100644 --- a/drivers/usb/phy/phy-tegra-usb.c +++ b/drivers/usb/phy/phy-tegra-usb.c @@ -63,6 +63,10 @@ #define A_VBUS_VLD_WAKEUP_EN BIT(30) #define USB_PHY_VBUS_WAKEUP_ID 0x408 +#define ID_INT_EN BIT(0) +#define ID_CHG_DET BIT(1) +#define VBUS_WAKEUP_INT_EN BIT(8) +#define VBUS_WAKEUP_CHG_DET BIT(9) #define VBUS_WAKEUP_STS BIT(10) #define VBUS_WAKEUP_WAKEUP_EN BIT(30) @@ -158,6 +162,10 @@ #define USB_USBMODE_HOST (3 << 0) #define USB_USBMODE_DEVICE (2 << 0) +#define PMC_USB_AO 0xf0 +#define VBUS_WAKEUP_PD_P0 BIT(2) +#define ID_PD_P0 BIT(3) + static DEFINE_SPINLOCK(utmip_pad_lock); static unsigned int utmip_pad_count; @@ -533,13 +541,14 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val &= ~USB_WAKE_ON_RESUME_EN; writel_relaxed(val, base + USB_SUSP_CTRL); - if (phy->mode == USB_DR_MODE_PERIPHERAL) { + if (phy->mode != USB_DR_MODE_HOST) { val = readl_relaxed(base + USB_SUSP_CTRL); val &= ~(USB_WAKE_ON_CNNT_EN_DEV | USB_WAKE_ON_DISCON_EN_DEV); writel_relaxed(val, base + USB_SUSP_CTRL); val = readl_relaxed(base + USB_PHY_VBUS_WAKEUP_ID); val &= ~VBUS_WAKEUP_WAKEUP_EN; + val &= ~(ID_CHG_DET | VBUS_WAKEUP_CHG_DET); writel_relaxed(val, base + USB_PHY_VBUS_WAKEUP_ID); val = readl_relaxed(base + USB_PHY_VBUS_SENSORS); @@ -687,9 +696,10 @@ static int utmi_phy_power_off(struct tegra_usb_phy *phy) * Ask VBUS sensor to generate wake event once cable is * connected. */ - if (phy->mode == USB_DR_MODE_PERIPHERAL) { + if (phy->mode != USB_DR_MODE_HOST) { val = readl_relaxed(base + USB_PHY_VBUS_WAKEUP_ID); val |= VBUS_WAKEUP_WAKEUP_EN; + val &= ~(ID_CHG_DET | VBUS_WAKEUP_CHG_DET); writel_relaxed(val, base + USB_PHY_VBUS_WAKEUP_ID); val = readl_relaxed(base + USB_PHY_VBUS_SENSORS); @@ -904,26 +914,146 @@ static void tegra_usb_phy_shutdown(struct usb_phy *u_phy) phy->freq = NULL; } +static irqreturn_t tegra_usb_phy_isr(int irq, void *data) +{ + u32 val, int_mask = ID_CHG_DET | VBUS_WAKEUP_CHG_DET; + struct tegra_usb_phy *phy = data; + void __iomem *base = phy->regs; + + /* + * The PHY interrupt also wakes the USB controller driver since + * interrupt is shared. We don't do anything in the PHY driver, + * so just clear the interrupt. + */ + val = readl_relaxed(base + USB_PHY_VBUS_WAKEUP_ID); + writel_relaxed(val, base + USB_PHY_VBUS_WAKEUP_ID); + + return val & int_mask ? IRQ_HANDLED : IRQ_NONE; +} + static int tegra_usb_phy_set_wakeup(struct usb_phy *u_phy, bool enable) { struct tegra_usb_phy *phy = to_tegra_usb_phy(u_phy); + void __iomem *base = phy->regs; + int ret = 0; + u32 val; + + if (phy->wakeup_enabled && phy->mode != USB_DR_MODE_HOST && + phy->irq > 0) { + disable_irq(phy->irq); + + val = readl_relaxed(base + USB_PHY_VBUS_WAKEUP_ID); + val &= ~(ID_INT_EN | VBUS_WAKEUP_INT_EN); + writel_relaxed(val, base + USB_PHY_VBUS_WAKEUP_ID); + + enable_irq(phy->irq); + + free_irq(phy->irq, phy); + + phy->wakeup_enabled = false; + } + + if (enable && phy->mode != USB_DR_MODE_HOST && phy->irq > 0) { + ret = request_irq(phy->irq, tegra_usb_phy_isr, IRQF_SHARED, + dev_name(phy->u_phy.dev), phy); + if (!ret) { + disable_irq(phy->irq); + + /* + * USB clock will be resumed once wake event will be + * generated. The ID-change event requires to have + * interrupts enabled, otherwise it won't be generated. + */ + val = readl_relaxed(base + USB_PHY_VBUS_WAKEUP_ID); + val |= ID_INT_EN | VBUS_WAKEUP_INT_EN; + writel_relaxed(val, base + USB_PHY_VBUS_WAKEUP_ID); + + enable_irq(phy->irq); + } else { + dev_err(phy->u_phy.dev, + "Failed to request interrupt: %d", ret); + enable = false; + } + } phy->wakeup_enabled = enable; - return 0; + return ret; } static int tegra_usb_phy_set_suspend(struct usb_phy *u_phy, int suspend) { struct tegra_usb_phy *phy = to_tegra_usb_phy(u_phy); + int ret; if (WARN_ON(!phy->freq)) return -EINVAL; + /* + * PHY is sharing IRQ with the CI driver, hence here we either + * disable interrupt for both PHY and CI or for CI only. The + * interrupt needs to be disabled while hardware is reprogrammed + * because interrupt touches the programmed registers, and thus, + * there could be a race condition. + */ + if (phy->irq > 0) + disable_irq(phy->irq); + if (suspend) - return tegra_usb_phy_power_off(phy); + ret = tegra_usb_phy_power_off(phy); else - return tegra_usb_phy_power_on(phy); + ret = tegra_usb_phy_power_on(phy); + + if (phy->irq > 0) + enable_irq(phy->irq); + + return ret; +} + +static int tegra_usb_phy_configure_pmc(struct tegra_usb_phy *phy) +{ + int err, val = 0; + + /* older device-trees don't have PMC regmap */ + if (!phy->pmc_regmap) + return 0; + + /* + * Tegra20 has a different layout of PMC USB register bits and AO is + * enabled by default after system reset on Tegra20, so assume nothing + * to do on Tegra20. + */ + if (!phy->soc_config->requires_pmc_ao_power_up) + return 0; + + /* enable VBUS wake-up detector */ + if (phy->mode != USB_DR_MODE_HOST) + val |= VBUS_WAKEUP_PD_P0 << phy->instance * 4; + + /* enable ID-pin ACC detector for OTG mode switching */ + if (phy->mode == USB_DR_MODE_OTG) + val |= ID_PD_P0 << phy->instance * 4; + + /* disable detectors to reset them */ + err = regmap_set_bits(phy->pmc_regmap, PMC_USB_AO, val); + if (err) { + dev_err(phy->u_phy.dev, "Failed to disable PMC AO: %d\n", err); + return err; + } + + usleep_range(10, 100); + + /* enable detectors */ + err = regmap_clear_bits(phy->pmc_regmap, PMC_USB_AO, val); + if (err) { + dev_err(phy->u_phy.dev, "Failed to enable PMC AO: %d\n", err); + return err; + } + + /* detectors starts to work after 10ms */ + usleep_range(10000, 15000); + + return 0; } static int tegra_usb_phy_init(struct usb_phy *u_phy) @@ -967,6 +1097,10 @@ static int tegra_usb_phy_init(struct usb_phy *u_phy) goto disable_vbus; } + err = tegra_usb_phy_configure_pmc(phy); + if (err) + goto close_phy; + err = tegra_usb_phy_power_on(phy); if (err) goto close_phy; @@ -1135,11 +1269,56 @@ static int utmi_phy_probe(struct tegra_usb_phy *tegra_phy, return 0; } +static void tegra_usb_phy_put_pmc_device(void *dev) +{ + put_device(dev); +} + +static int tegra_usb_phy_parse_pmc(struct device *dev, + struct tegra_usb_phy *phy) +{ + struct platform_device *pmc_pdev; + struct of_phandle_args args; + int err; + + err = of_parse_phandle_with_fixed_args(dev->of_node, "nvidia,pmc", + 1, 0, &args); + if (err) { + if (err != -ENOENT) + return err; + + dev_warn_once(dev, "nvidia,pmc is missing, please update your device-tree\n"); + return 0; + } + + pmc_pdev = of_find_device_by_node(args.np); + of_node_put(args.np); + if (!pmc_pdev) + return -ENODEV; + + err = devm_add_action_or_reset(dev, tegra_usb_phy_put_pmc_device, + &pmc_pdev->dev); + if (err) + return err; + + if (!platform_get_drvdata(pmc_pdev)) + return -EPROBE_DEFER; + + phy->pmc_regmap = dev_get_regmap(&pmc_pdev->dev, "usb_sleepwalk"); + if (!phy->pmc_regmap) + return -EINVAL; + + phy->instance = args.args[0]; + + return 0; +} + static const struct tegra_phy_soc_config tegra20_soc_config = { .utmi_pll_config_in_car_module = false, .has_hostpc = false, .requires_usbmode_setup = false, .requires_extra_tuning_parameters = false, + .requires_pmc_ao_power_up = false, }; static const struct tegra_phy_soc_config tegra30_soc_config = { @@ -1147,6 +1326,7 @@ static const struct tegra_phy_soc_config tegra30_soc_config = { .has_hostpc = true, .requires_usbmode_setup = true, .requires_extra_tuning_parameters = true, + .requires_pmc_ao_power_up = true, }; static const struct of_device_id tegra_usb_phy_id_table[] = { @@ -1172,6 +1352,7 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) return -ENOMEM; tegra_phy->soc_config = of_device_get_match_data(&pdev->dev); + tegra_phy->irq = platform_get_irq_optional(pdev, 0); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -1215,6 +1396,12 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) return err; } + err = tegra_usb_phy_parse_pmc(&pdev->dev, tegra_phy); + if (err) { + dev_err_probe(&pdev->dev, err, "Failed to get PMC regmap\n"); + return err; + } + phy_type = of_usb_get_phy_mode(np); switch (phy_type) { case USBPHY_INTERFACE_MODE_UTMI: diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h index fd1c9f6a4e37..d3e65eb9e16f 100644 --- a/include/linux/usb/tegra_usb_phy.h +++ b/include/linux/usb/tegra_usb_phy.h @@ -18,6 +18,7 @@ #include #include +#include #include #include @@ -30,6 +31,7 @@ * enter host mode * requires_extra_tuning_parameters: true if xcvr_hsslew, hssquelch_level * and hsdiscon_level should be set for adequate signal quality + * requires_pmc_ao_power_up: true if USB AO is powered down by default */ struct tegra_phy_soc_config { @@ -37,6 +39,7 @@ struct tegra_phy_soc_config { bool has_hostpc; bool requires_usbmode_setup; bool requires_extra_tuning_parameters; + bool requires_pmc_ao_power_up; }; struct tegra_utmip_config { @@ -62,6 +65,7 @@ enum tegra_usb_phy_port_speed { struct tegra_xtal_freq; struct tegra_usb_phy { + int irq; int instance; const struct tegra_xtal_freq *freq; void __iomem *regs; @@ -70,6 +74,7 @@ struct tegra_usb_phy { struct clk *pll_u; struct clk *pad_clk; struct regulator *vbus; + struct regmap *pmc_regmap; enum usb_dr_mode mode; void *config; const struct tegra_phy_soc_config *soc_config; From patchwork Sat Jul 17 18:21:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383787 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFB5AC6379F for ; Sat, 17 Jul 2021 18:23:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B2DE261154 for ; Sat, 17 Jul 2021 18:23:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235807AbhGQS0g (ORCPT ); Sat, 17 Jul 2021 14:26:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235325AbhGQS0G (ORCPT ); Sat, 17 Jul 2021 14:26:06 -0400 Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41E00C061762; Sat, 17 Jul 2021 11:23:07 -0700 (PDT) Received: by mail-lj1-x22e.google.com with SMTP id u14so18912952ljh.0; Sat, 17 Jul 2021 11:23:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=tx+FBtsIpk7hvxer7pRAYtZGSgLlz0FVqFktBev8H5o=; b=WUkZ7L1aFpSV4IcE+DJt5e9kryyvHROr0ZULRcSNnoH/FtV5XBJwoEE/LsbRYyfXSX LvFGSNLstUwnYzXY1z76ngNsT/XJTdYjY5W+WJoz5bUnBraw614hMDFxFE0RbK0iolGb dnXpKeVWAi44b3/jUARtJrwfVSwiChSMGj4zmHAGRL1jsOZH/jFA3jC5NFdbNX7TOxrR V0VD4efiWBGKdVT68t6pw5RRHzAgqQ55kVfd/tKo587NS4q2iDMbhlvl+dQETtW3OGnw HLiHSRWwNJOBciUJ5jsnrfbUHCgTw2D4wdijlJb33w+coqGHt03w2BFMl3fTwFdF7+Uw Pu4Q== 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:mime-version:content-transfer-encoding; bh=tx+FBtsIpk7hvxer7pRAYtZGSgLlz0FVqFktBev8H5o=; b=abyAHLOu7Q5B640m3859FPffjPxWNk0owPy533L7iWpymyWTsNqeD1DvFLOvhQ0d8p D/TCY849+aeWRwgb9KBxT2SK0BwxNtl+BHRABnHZzNPidbq0PCB0FH4k08SnId3i7+Rm cV1fE+PEK2x/hZKbhNcJLn9Y0M6r7ebcoWIklvx3m5MYr0fJF6Dgj5V4zwigkZoTYrii e4FPyq3RW7eWJKwwEQxtlcdZtsb3M4mEsxXITCw2uhxqPpLDR6TCkju4t+pb3xLaN05Y NDjCMSng529FMobR4MawkBq+JnvqP4xFXys5m0Lgwd7cWdTYMApu3McFEkyjKntGxh1/ zAyA== X-Gm-Message-State: AOAM5307nc6NDlbaE3XDoyJ9RMNNCpNSXtLP6oKJ40nwVQseuJAZ0qMX ObukDpe9yD3B6Tr/MHxrWM0= X-Google-Smtp-Source: ABdhPJxPflOHMFEWYMu3x9YA3dT0WxH1qUhkWOwMe2iBLDL4KppcPD+eMWmi9HFdGA9HjSMZAwg9Pw== X-Received: by 2002:a05:651c:1141:: with SMTP id h1mr9553812ljo.224.1626546185688; Sat, 17 Jul 2021 11:23:05 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:05 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 05/12] usb: otg-fsm: Fix hrtimer list corruption Date: Sat, 17 Jul 2021 21:21:27 +0300 Message-Id: <20210717182134.30262-6-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The HNP work can be re-scheduled while it's still in-fly. This results in re-initialization of the busy work, resetting the hrtimer's list node of the work and crashing kernel with null dereference within kernel/timer once work's timer is expired. It's very easy to trigger this problem by re-plugging USB cable quickly. Initialize HNP work only once to fix this trouble. Unable to handle kernel NULL pointer dereference at virtual address 00000126) ... PC is at __run_timers.part.0+0x150/0x228 LR is at __next_timer_interrupt+0x51/0x9c ... (__run_timers.part.0) from [] (run_timer_softirq+0x2f/0x50) (run_timer_softirq) from [] (__do_softirq+0xd5/0x2f0) (__do_softirq) from [] (irq_exit+0xab/0xb8) (irq_exit) from [] (handle_domain_irq+0x45/0x60) (handle_domain_irq) from [] (gic_handle_irq+0x6b/0x7c) (gic_handle_irq) from [] (__irq_svc+0x65/0xac) Cc: stable@vger.kernel.org Acked-by: Peter Chen Signed-off-by: Dmitry Osipenko --- drivers/usb/common/usb-otg-fsm.c | 6 +++++- include/linux/usb/otg-fsm.h | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c index 3740cf95560e..0697fde51d00 100644 --- a/drivers/usb/common/usb-otg-fsm.c +++ b/drivers/usb/common/usb-otg-fsm.c @@ -193,7 +193,11 @@ static void otg_start_hnp_polling(struct otg_fsm *fsm) if (!fsm->host_req_flag) return; - INIT_DELAYED_WORK(&fsm->hnp_polling_work, otg_hnp_polling_work); + if (!fsm->hnp_work_inited) { + INIT_DELAYED_WORK(&fsm->hnp_polling_work, otg_hnp_polling_work); + fsm->hnp_work_inited = true; + } + schedule_delayed_work(&fsm->hnp_polling_work, msecs_to_jiffies(T_HOST_REQ_POLL)); } diff --git a/include/linux/usb/otg-fsm.h b/include/linux/usb/otg-fsm.h index 3aee78dda16d..784659d4dc99 100644 --- a/include/linux/usb/otg-fsm.h +++ b/include/linux/usb/otg-fsm.h @@ -196,6 +196,7 @@ struct otg_fsm { struct mutex lock; u8 *host_req_flag; struct delayed_work hnp_polling_work; + bool hnp_work_inited; bool state_changed; }; From patchwork Sat Jul 17 18:21:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383781 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 769EDC6377D for ; Sat, 17 Jul 2021 18:23:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F3E861154 for ; Sat, 17 Jul 2021 18:23:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235736AbhGQS0e (ORCPT ); Sat, 17 Jul 2021 14:26:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235283AbhGQS0F (ORCPT ); Sat, 17 Jul 2021 14:26:05 -0400 Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F95AC061767; Sat, 17 Jul 2021 11:23:08 -0700 (PDT) Received: by mail-lf1-x135.google.com with SMTP id g8so15764854lfh.8; Sat, 17 Jul 2021 11:23:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=5Vgfkn6aojezGyNshrp4rdUuCsXyIjMI3yAFc0juggw=; b=dB+8mmmwzGt+/Vy7uuglaj10Q8xGvMXumt3y0N/FQd01CCNkYOLiONJQTitQUgpnjR mOja3Z+IPjQ6NrCqXRfwfMo4n90CMjJVLsFXx4WpIGJg57tbeozxs5dYMFQps6AuMpmA AogzkcbUpR23cTnZa0bFcA7iJB86WtfsViFdoC+h3m8h/Zayu4C5pIp5Kz0DjAO97k3/ 1Iva72Qkkl8KwE8ZebPEwpuDpVIAZ5MyxYVnXTyJ/N0QzXfA5HfUeI5aa35pDEXIdiJ9 pKPBWtQ2jw1fQ310DLC5W2vujqMYP+C/YRxRdoryEP8w+N5M33I91eSZw/E19ws65Iu7 6jOg== 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:mime-version:content-transfer-encoding; bh=5Vgfkn6aojezGyNshrp4rdUuCsXyIjMI3yAFc0juggw=; b=ER0j+120iGDNciI7J8AFata+vWK5iT4J5m79R8s9ByW8FEdUnz+YZuIi1/vUBQ+Tqq 8UtzqeNUxApMdkaXO6/80b+znqhMY3AROx970ORCVvuBr6KKAN2E4YnZbu0Jnv2RWEET U6K9xh3QpXBLSsnjr3IlmDDossXRxgt66y3u4iH9FXaN/jdJVUSNl2RAUQShRSYJCkc1 bQHrGtHVpIs/4u5gn4klqNERguipENoB6unU4haaNDxNmLIdKu3Zds53QnQIfT4+F2jx jD8T26RBFb6c64AFcddqe/tkTrjiJ6Fksra715HUREyd2VnEb1XM05ju08lctlAKEqCT Pebw== X-Gm-Message-State: AOAM531G1OOJp/z5128K1YBV+k5w33DtJHFsSMA05f4hPjYVy23aDoPC CyuRqwuFp28ckIx6I6k1SJQ= X-Google-Smtp-Source: ABdhPJwNiE2Ba5A66eTVEdLqAWKmYI5rMLDUIsmfcF2G529UU5aO0hwhC2ISCZTWSC4j76AM8hkQ+g== X-Received: by 2002:a19:7408:: with SMTP id v8mr12332827lfe.508.1626546186467; Sat, 17 Jul 2021 11:23:06 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:06 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 06/12] dt-bindings: power: supply: smb347-charger: Document USB VBUS regulator Date: Sat, 17 Jul 2021 21:21:28 +0300 Message-Id: <20210717182134.30262-7-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org SMB347 can supply power to USB VBUS, which is required by OTG-cable devices that want to switch USB port into the host mode. Add USB VBUS regulator properties. Reviewed-by: Rob Herring Signed-off-by: Dmitry Osipenko --- .../power/supply/summit,smb347-charger.yaml | 30 +++++++++++++++++++ .../dt-bindings/power/summit,smb347-charger.h | 4 +++ 2 files changed, 34 insertions(+) diff --git a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml index 983fc215c1e5..20862cdfc116 100644 --- a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml +++ b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml @@ -73,6 +73,26 @@ properties: - 1 # SMB3XX_SOFT_TEMP_COMPENSATE_CURRENT Current compensation - 2 # SMB3XX_SOFT_TEMP_COMPENSATE_VOLTAGE Voltage compensation + summit,inok-polarity: + description: | + Polarity of INOK signal indicating presence of external power supply. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: + - 0 # SMB3XX_SYSOK_INOK_ACTIVE_LOW + - 1 # SMB3XX_SYSOK_INOK_ACTIVE_HIGH + + usb-vbus: + $ref: "../../regulator/regulator.yaml#" + type: object + + properties: + summit,needs-inok-toggle: + type: boolean + description: INOK signal is fixed and polarity needs to be toggled + in order to enable/disable output mode. + + unevaluatedProperties: false + allOf: - if: properties: @@ -134,6 +154,7 @@ examples: reg = <0x7f>; summit,enable-charge-control = ; + summit,inok-polarity = ; summit,chip-temperature-threshold-celsius = <110>; summit,mains-current-limit-microamp = <2000000>; summit,usb-current-limit-microamp = <500000>; @@ -141,6 +162,15 @@ examples: summit,enable-mains-charging; monitored-battery = <&battery>; + + usb-vbus { + regulator-name = "usb_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-min-microamp = <750000>; + regulator-max-microamp = <750000>; + summit,needs-inok-toggle; + }; }; }; diff --git a/include/dt-bindings/power/summit,smb347-charger.h b/include/dt-bindings/power/summit,smb347-charger.h index d918bf321a71..3205699b5e41 100644 --- a/include/dt-bindings/power/summit,smb347-charger.h +++ b/include/dt-bindings/power/summit,smb347-charger.h @@ -16,4 +16,8 @@ #define SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW 1 #define SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH 2 +/* Polarity of INOK signal */ +#define SMB3XX_SYSOK_INOK_ACTIVE_LOW 0 +#define SMB3XX_SYSOK_INOK_ACTIVE_HIGH 1 + #endif From patchwork Sat Jul 17 18:21:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383771 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69D2CC636C9 for ; Sat, 17 Jul 2021 18:23:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5555A61156 for ; Sat, 17 Jul 2021 18:23:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235469AbhGQS0M (ORCPT ); Sat, 17 Jul 2021 14:26:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235351AbhGQS0H (ORCPT ); Sat, 17 Jul 2021 14:26:07 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E559EC061764; Sat, 17 Jul 2021 11:23:08 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id g22so9691386lfu.0; Sat, 17 Jul 2021 11:23:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=j0s0M0z8QxhlBsL/EnH/YmL65tjqGzsbgcjcWgYpzJI=; b=IkTg5Jxqg4eSEEFLunf21iwtAMWn5dG49OB3XcN8soCBSEusH/JCTP+iLl71XFbjOy Apu0fJ4wB7L0oJ17WQaXt7eEM2J4wclvP1SaohCBMwsqX8MFg5XcEw9UP/mYuiADdFhs RhlQcnBZ42GZhjHDQ+S4k318RgeSDFGmQIJFiUWlxlBrX77KcrX3Cv2RG/OHZourI14J q69+b+8WmWxQPmmESkcelm76dJjW3p3qHPaV3/cF8DPikAwag4hqO9m0U4yMCZ1i4llO MtfQh6AQD35Rr3uq734o0BLPFlySseTN9vRJEEUo7QxcHM0+cDIcl3ST1tI8qaO8gWTx y30w== 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:mime-version:content-transfer-encoding; bh=j0s0M0z8QxhlBsL/EnH/YmL65tjqGzsbgcjcWgYpzJI=; b=poAD/qnbviJwT63R+b8mwCVqcA8DGVkUoCMhsQWh8BH35A7M4bzMn0aDdZ3Od5m3hm zO/ELJh46cH+QvLLGOkGs+jn7Itec5k0usIpDy7+PlJxd1YInRlhbCMbQXq2c5bv6u7H 2wlHPvW1V/E0zraVjUIxZoUDO658TaTabBUa+xV7oL6jKFYt3/2QamuhMogST2r+Td01 11N6GR1HasGmgBpHYl0Z0gUmeUQFtsS3NJzNCF0LhykTZ6P6VaO+pl/T8+U5sRAM0vjh DcTN+p2vlSnfyyd56MNJrYMyhSOkZsFNqlmHKx0RdXDO18j4FFd7BoV+R8JEMvd9fDgO FvWw== X-Gm-Message-State: AOAM531y1E455BS3Q5RjvCxmb6Fp+ou3Z1DPstCyzXEmLwwltnj9ySFI wD0Ysa5D8R4PembGBjRzdyw= X-Google-Smtp-Source: ABdhPJzd76uy4L8Cbp10rv0ImWAhsEpfvJbSxMVvFcy9sJ7aZD+RjVPvWlW4nH+F+bj88kqkoqh2DQ== X-Received: by 2002:a05:6512:374f:: with SMTP id a15mr11902689lfs.208.1626546187283; Sat, 17 Jul 2021 11:23:07 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:06 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 07/12] power: supply: smb347-charger: Make smb347_set_writable() IRQ-safe Date: Sat, 17 Jul 2021 21:21:29 +0300 Message-Id: <20210717182134.30262-8-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The smb347_set_writable() is used by interrupt handler and outside of it. The interrupt should be disabled when the function is used outside of interrupt handler in order to prevent racing with the interrupt context. Add new parameter to smb347_set_writable() that allows to disable IRQ. Signed-off-by: Dmitry Osipenko --- drivers/power/supply/smb347-charger.c | 30 +++++++++++++++++++-------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/drivers/power/supply/smb347-charger.c b/drivers/power/supply/smb347-charger.c index df240420f2de..db1378b41f80 100644 --- a/drivers/power/supply/smb347-charger.c +++ b/drivers/power/supply/smb347-charger.c @@ -671,10 +671,22 @@ static int smb347_set_temp_limits(struct smb347_charger *smb) * * Returns %0 on success and negative errno in case of failure. */ -static int smb347_set_writable(struct smb347_charger *smb, bool writable) +static int smb347_set_writable(struct smb347_charger *smb, bool writable, + bool irq_toggle) { - return regmap_update_bits(smb->regmap, CMD_A, CMD_A_ALLOW_WRITE, - writable ? CMD_A_ALLOW_WRITE : 0); + struct i2c_client *client = to_i2c_client(smb->dev); + int ret; + + if (writable && irq_toggle && !smb->irq_unsupported) + disable_irq(client->irq); + + ret = regmap_update_bits(smb->regmap, CMD_A, CMD_A_ALLOW_WRITE, + writable ? CMD_A_ALLOW_WRITE : 0); + + if ((!writable || ret) && irq_toggle && !smb->irq_unsupported) + enable_irq(client->irq); + + return ret; } static int smb347_hw_init(struct smb347_charger *smb) @@ -682,7 +694,7 @@ static int smb347_hw_init(struct smb347_charger *smb) unsigned int val; int ret; - ret = smb347_set_writable(smb, true); + ret = smb347_set_writable(smb, true, false); if (ret < 0) return ret; @@ -758,7 +770,7 @@ static int smb347_hw_init(struct smb347_charger *smb) ret = smb347_start_stop_charging(smb); fail: - smb347_set_writable(smb, false); + smb347_set_writable(smb, false, false); return ret; } @@ -866,7 +878,7 @@ static int smb347_irq_set(struct smb347_charger *smb, bool enable) if (smb->irq_unsupported) return 0; - ret = smb347_set_writable(smb, true); + ret = smb347_set_writable(smb, true, true); if (ret < 0) return ret; @@ -891,7 +903,7 @@ static int smb347_irq_set(struct smb347_charger *smb, bool enable) ret = regmap_update_bits(smb->regmap, CFG_PIN, CFG_PIN_EN_CHARGER_ERROR, enable ? CFG_PIN_EN_CHARGER_ERROR : 0); fail: - smb347_set_writable(smb, false); + smb347_set_writable(smb, false, true); return ret; } @@ -919,7 +931,7 @@ static int smb347_irq_init(struct smb347_charger *smb, if (!client->irq) return 0; - ret = smb347_set_writable(smb, true); + ret = smb347_set_writable(smb, true, false); if (ret < 0) return ret; @@ -931,7 +943,7 @@ static int smb347_irq_init(struct smb347_charger *smb, CFG_STAT_ACTIVE_HIGH | CFG_STAT_DISABLED, CFG_STAT_DISABLED); - smb347_set_writable(smb, false); + smb347_set_writable(smb, false, false); if (ret < 0) { dev_warn(smb->dev, "failed to initialize IRQ: %d\n", ret); From patchwork Sat Jul 17 18:21:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383783 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65E7BC6379D for ; Sat, 17 Jul 2021 18:23:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C5D761154 for ; Sat, 17 Jul 2021 18:23:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235941AbhGQS0j (ORCPT ); Sat, 17 Jul 2021 14:26:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235352AbhGQS0I (ORCPT ); Sat, 17 Jul 2021 14:26:08 -0400 Received: from mail-lj1-x22c.google.com (mail-lj1-x22c.google.com [IPv6:2a00:1450:4864:20::22c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A345C0613DC; Sat, 17 Jul 2021 11:23:09 -0700 (PDT) Received: by mail-lj1-x22c.google.com with SMTP id bn5so18450624ljb.10; Sat, 17 Jul 2021 11:23:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=SyEqKVYd5TXY1roltYfKJJJ2QzPSBfIspS/lNIOm7yo=; b=uiHe/8AVBuInu04jlXzgcUHpNJqOOdllXeR6HliYQRTRkTQDLPFxr93UOy0u5fvvAy 2Ck0s4X8gLDBbAsPyiP0rGQwQGlCZpmL4fnFUdiaKbvKXWJb7dcBYeK8ItB7VH7+vX0c ZXNVr9gfPyNIbFSEiZe2ZTJZERti2+YXAYGreI9MZLonh9lJNXhm2o9tupx0vldweXKM /SCbL9CaTX+xayMZJNwOFuyvwJpBHEaGaI0fTJWDHajh+zPHWvqASoDhOKgchIbhJb0S zzpQs4DlPO/IRdOLvc2fla4qxM6w4sGAm5PZFPhMhLQlZwEPgV36F/vh0G9GCdJys/27 8ZQA== 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:mime-version:content-transfer-encoding; bh=SyEqKVYd5TXY1roltYfKJJJ2QzPSBfIspS/lNIOm7yo=; b=edi8gm2feRmTAmqmFHUI4CVof13lluRRzYC4+VB7fY+2yG6lCJ04idDntcNiMFYpil tAL8CWqRmO1gIzQVD2ExDiyzRYeqCR/wH+RROSfth7CNleLpXRP1nYH8/jhJvAmUVscX mD5sppeFCKOBp7y/9soY0+90g3UgyO0uQjJ17015D8PwvklHLhz8edowaJ9pZcrrFvry tMwMol2KaV0oe/DFMwsWHtBDS+gcxPMw7+rt5/W+nX4ZjaN6BecL/D708/9bRntRdNsm 3dHRB9glnxeUxpysEaZPkhgLXlJ7JPtMKeqkFJsJDlcgs+Ej8ANyZCUTGOuwfSp0bQOp t6iw== X-Gm-Message-State: AOAM533/pJTrPbjYO5SwsqGI7gM777ttWFWvzK4XBEloQWAxC/yGskTr USjVHIocxYJpmoCGhbHJvw8= X-Google-Smtp-Source: ABdhPJwIlxdKcMBrJc07SqUK9IKmgrZ2dXbf0Z6LlIe0tvKNl3/29hhmHJr818+2kr5k+fqIT1BNlg== X-Received: by 2002:a2e:9241:: with SMTP id v1mr14371221ljg.48.1626546188055; Sat, 17 Jul 2021 11:23:08 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:07 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 08/12] power: supply: smb347-charger: Utilize generic regmap caching Date: Sat, 17 Jul 2021 21:21:30 +0300 Message-Id: <20210717182134.30262-9-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Utilize generic regmap caching in order to avoid unnecessary slow I2C accesses each time the supply status updated and remove local caching of charger state to make code cleaner. Signed-off-by: Dmitry Osipenko --- drivers/power/supply/smb347-charger.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/power/supply/smb347-charger.c b/drivers/power/supply/smb347-charger.c index db1378b41f80..0f4d458e294f 100644 --- a/drivers/power/supply/smb347-charger.c +++ b/drivers/power/supply/smb347-charger.c @@ -135,7 +135,6 @@ * @id: SMB charger ID * @mains_online: is AC/DC input connected * @usb_online: is USB input connected - * @charging_enabled: is charging enabled * @irq_unsupported: is interrupt unsupported by SMB hardware * @max_charge_current: maximum current (in uA) the battery can be charged * @max_charge_voltage: maximum voltage (in uV) the battery can be charged @@ -192,7 +191,6 @@ struct smb347_charger { unsigned int id; bool mains_online; bool usb_online; - bool charging_enabled; bool irq_unsupported; unsigned int max_charge_current; @@ -358,21 +356,13 @@ static int smb347_charging_status(struct smb347_charger *smb) static int smb347_charging_set(struct smb347_charger *smb, bool enable) { - int ret = 0; - if (smb->enable_control != SMB3XX_CHG_ENABLE_SW) { dev_dbg(smb->dev, "charging enable/disable in SW disabled\n"); return 0; } - if (smb->charging_enabled != enable) { - ret = regmap_update_bits(smb->regmap, CMD_A, CMD_A_CHG_ENABLED, - enable ? CMD_A_CHG_ENABLED : 0); - if (!ret) - smb->charging_enabled = enable; - } - - return ret; + return regmap_update_bits(smb->regmap, CMD_A, CMD_A_CHG_ENABLED, + enable ? CMD_A_CHG_ENABLED : 0); } static inline int smb347_charging_enable(struct smb347_charger *smb) @@ -1310,6 +1300,7 @@ static const struct regmap_config smb347_regmap = { .max_register = SMB347_MAX_REGISTER, .volatile_reg = smb347_volatile_reg, .readable_reg = smb347_readable_reg, + .cache_type = REGCACHE_FLAT, }; static const struct power_supply_desc smb347_mains_desc = { From patchwork Sat Jul 17 18:21:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383785 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D14D5C6379A for ; Sat, 17 Jul 2021 18:23:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF35661156 for ; Sat, 17 Jul 2021 18:23:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235869AbhGQS0i (ORCPT ); Sat, 17 Jul 2021 14:26:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235361AbhGQS0I (ORCPT ); Sat, 17 Jul 2021 14:26:08 -0400 Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8593EC0613DD; Sat, 17 Jul 2021 11:23:10 -0700 (PDT) Received: by mail-lf1-x131.google.com with SMTP id g22so9691441lfu.0; Sat, 17 Jul 2021 11:23:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=GScJhvhtSdUzSOZg0Ln6IdtvFq8jm76Uy0B0j/758Ms=; b=lDpz88UXM58VYEBa1cHkXxaKkNVIEvFedpPuvfmKRi3yptlvVnmImGW8P3UouFDsQ5 Yqk8Wd/nMV8GtV5tdPhnZJU6MdaJY0En8+mtXfm1wySvglJbjSnnlly3Vu24+dujSWa0 s1wn2SYBlWgTnRW+wOV0QTPmJkuDZIXe92S01wTXgm+iv1M8mjVncDj4Eqpy83oHXbKO AZTiCAX/BKvDBQ+HWg24XO+IC1knFVIoSOHfIuDhZ0m1/DM8M5thr4mYBnNWFHVYHzvB fW0jxgrp630+S7KISiiSK2juGp8fUoswGCEx98TVkAgXmdZXh0JOq+q4adS+96j4nmp8 j3Xw== 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:mime-version:content-transfer-encoding; bh=GScJhvhtSdUzSOZg0Ln6IdtvFq8jm76Uy0B0j/758Ms=; b=LRneAunr6tKjD7ALzWgcvv5acm10HtpawoV9AV28RqsFBc/LIZhra8HJVjuOePvFD7 t4g+XnsU2uNDuGIzHfXxLHelbDiKGj9wcRKWmsJaHy9LTOK707toUpMdnQQ8zZCVeD3w YBbGi4R0yHbDamJUOZ/iFUO+8HAhSOmegOdJxbb4w34IZDDQjBMZfpXm0Cv2MOJpyvM8 k/9yOmX4W7+kSRlkm9ADeNvBclO3kyUBJRTtIv9zPsWDan+F+km2qVelbItdGwu6zoQx Ms4wOrOgARfHikBaxKfdzlz3/RNcRFBMwvd4jvIQeYLq0xpCV69LSH7m2gZff8+yiV5w LXxA== X-Gm-Message-State: AOAM532bFDqunJLa7tQ6S02Nyj6yKbKvhdS7e6Rhz91FLdq2mESN+SGt szLrEVHEj17+pmkAqQkscaA= X-Google-Smtp-Source: ABdhPJzZmmzo98iGJI0AwglQWiIffoY+WDcoXXp+ZJ49KHyoeWyX5fc4kuOj/CMjRLPHbLi0qRxVZA== X-Received: by 2002:ac2:5504:: with SMTP id j4mr4896940lfk.220.1626546188829; Sat, 17 Jul 2021 11:23:08 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:08 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 09/12] power: supply: smb347-charger: Implement USB VBUS regulator Date: Sat, 17 Jul 2021 21:21:31 +0300 Message-Id: <20210717182134.30262-10-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org SMB347 can supply power to USB VBUS, implement the USB VBUS regulator. USB VBUS needs to be powered for switching OTG-cable USB port into host mode. Signed-off-by: Dmitry Osipenko --- drivers/power/supply/Kconfig | 1 + drivers/power/supply/smb347-charger.c | 219 ++++++++++++++++++++++++++ 2 files changed, 220 insertions(+) diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index d75643415f8e..1710c7bdf4a2 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -694,6 +694,7 @@ config CHARGER_BQ256XX config CHARGER_SMB347 tristate "Summit Microelectronics SMB3XX Battery Charger" depends on I2C + depends on REGULATOR select REGMAP_I2C help Say Y to include support for Summit Microelectronics SMB345, diff --git a/drivers/power/supply/smb347-charger.c b/drivers/power/supply/smb347-charger.c index 0f4d458e294f..8917412def11 100644 --- a/drivers/power/supply/smb347-charger.c +++ b/drivers/power/supply/smb347-charger.c @@ -18,6 +18,7 @@ #include #include #include +#include #include @@ -62,12 +63,15 @@ #define CFG_THERM_SOFT_COLD_COMPENSATION_SHIFT 2 #define CFG_THERM_MONITOR_DISABLED BIT(4) #define CFG_SYSOK 0x08 +#define CFG_SYSOK_INOK_ACTIVE_HIGH BIT(0) #define CFG_SYSOK_SUSPEND_HARD_LIMIT_DISABLED BIT(2) #define CFG_OTHER 0x09 #define CFG_OTHER_RID_MASK 0xc0 #define CFG_OTHER_RID_ENABLED_AUTO_OTG 0xc0 #define CFG_OTG 0x0a #define CFG_OTG_TEMP_THRESHOLD_MASK 0x30 +#define CFG_OTG_CURRENT_LIMIT_250mA BIT(2) +#define CFG_OTG_CURRENT_LIMIT_750mA BIT(3) #define CFG_OTG_TEMP_THRESHOLD_SHIFT 4 #define CFG_OTG_CC_COMPENSATION_MASK 0xc0 #define CFG_OTG_CC_COMPENSATION_SHIFT 6 @@ -91,6 +95,7 @@ #define CMD_A 0x30 #define CMD_A_CHG_ENABLED BIT(1) #define CMD_A_SUSPEND_ENABLED BIT(2) +#define CMD_A_OTG_ENABLED BIT(4) #define CMD_A_ALLOW_WRITE BIT(7) #define CMD_B 0x31 #define CMD_C 0x33 @@ -132,10 +137,12 @@ * @regmap: pointer to driver regmap * @mains: power_supply instance for AC/DC power * @usb: power_supply instance for USB power + * @usb_rdev: USB VBUS regulator device * @id: SMB charger ID * @mains_online: is AC/DC input connected * @usb_online: is USB input connected * @irq_unsupported: is interrupt unsupported by SMB hardware + * @usb_vbus_enabled: is USB VBUS powered by SMB charger * @max_charge_current: maximum current (in uA) the battery can be charged * @max_charge_voltage: maximum voltage (in uV) the battery can be charged * @pre_charge_current: current (in uA) to use in pre-charging phase @@ -166,6 +173,8 @@ * @use_usb_otg: USB OTG output can be used (not implemented yet) * @enable_control: how charging enable/disable is controlled * (driver/pin controls) + * @inok_polarity: polarity of INOK signal which denotes presence of external + * power supply * * @use_main, @use_usb, and @use_usb_otg are means to enable/disable * hardware support for these. This is useful when we want to have for @@ -188,10 +197,12 @@ struct smb347_charger { struct regmap *regmap; struct power_supply *mains; struct power_supply *usb; + struct regulator_dev *usb_rdev; unsigned int id; bool mains_online; bool usb_online; bool irq_unsupported; + bool usb_vbus_enabled; unsigned int max_charge_current; unsigned int max_charge_voltage; @@ -212,6 +223,7 @@ struct smb347_charger { bool use_usb; bool use_usb_otg; unsigned int enable_control; + unsigned int inok_polarity; }; enum smb_charger_chipid { @@ -361,6 +373,11 @@ static int smb347_charging_set(struct smb347_charger *smb, bool enable) return 0; } + if (enable && smb->usb_vbus_enabled) { + dev_dbg(smb->dev, "charging not enabled because USB is in host mode\n"); + return 0; + } + return regmap_update_bits(smb->regmap, CMD_A, CMD_A_CHG_ENABLED, enable ? CMD_A_CHG_ENABLED : 0); } @@ -1243,6 +1260,13 @@ static void smb347_dt_parse_dev_info(struct smb347_charger *smb) /* Select charging control */ device_property_read_u32(dev, "summit,enable-charge-control", &smb->enable_control); + + /* + * Polarity of INOK signal indicating presence of external power + * supply connected to the charger. + */ + device_property_read_u32(dev, "summit,inok-polarity", + &smb->inok_polarity); } static int smb347_get_battery_info(struct smb347_charger *smb) @@ -1294,6 +1318,160 @@ static int smb347_get_battery_info(struct smb347_charger *smb) return 0; } +static int smb347_usb_vbus_get_current_limit(struct regulator_dev *rdev) +{ + struct smb347_charger *smb = rdev_get_drvdata(rdev); + unsigned int val; + int ret; + + ret = regmap_read(smb->regmap, CFG_OTG, &val); + if (ret < 0) + return ret; + + /* + * It's unknown what happens if this bit is unset due to lack of + * access to the datasheet, assume it's limit-enable. + */ + if (!(val & CFG_OTG_CURRENT_LIMIT_250mA)) + return 0; + + return val & CFG_OTG_CURRENT_LIMIT_750mA ? 750000 : 250000; +} + +static int smb347_usb_vbus_set_new_current_limit(struct smb347_charger *smb, + int max_uA) +{ + const unsigned int mask = CFG_OTG_CURRENT_LIMIT_750mA | + CFG_OTG_CURRENT_LIMIT_250mA; + unsigned int val = CFG_OTG_CURRENT_LIMIT_250mA; + int ret; + + if (max_uA >= 750000) + val |= CFG_OTG_CURRENT_LIMIT_750mA; + + ret = regmap_update_bits(smb->regmap, CFG_OTG, mask, val); + if (ret < 0) + dev_err(smb->dev, "failed to change USB current limit\n"); + + return ret; +} + +static int smb347_usb_vbus_set_current_limit(struct regulator_dev *rdev, + int min_uA, int max_uA) +{ + struct smb347_charger *smb = rdev_get_drvdata(rdev); + int ret; + + ret = smb347_set_writable(smb, true, true); + if (ret < 0) + return ret; + + ret = smb347_usb_vbus_set_new_current_limit(smb, max_uA); + smb347_set_writable(smb, false, true); + + return ret; +} + +static int smb347_usb_vbus_regulator_enable(struct regulator_dev *rdev) +{ + struct smb347_charger *smb = rdev_get_drvdata(rdev); + int ret, max_uA; + + ret = smb347_set_writable(smb, true, true); + if (ret < 0) + return ret; + + smb347_charging_disable(smb); + + if (device_property_read_bool(&rdev->dev, "summit,needs-inok-toggle")) { + unsigned int sysok = 0; + + if (smb->inok_polarity == SMB3XX_SYSOK_INOK_ACTIVE_LOW) + sysok = CFG_SYSOK_INOK_ACTIVE_HIGH; + + /* + * VBUS won't be powered if INOK is active, so we need to + * manually disable INOK on some platforms. + */ + ret = regmap_update_bits(smb->regmap, CFG_SYSOK, + CFG_SYSOK_INOK_ACTIVE_HIGH, sysok); + if (ret < 0) { + dev_err(smb->dev, "failed to disable INOK\n"); + goto done; + } + } + + ret = smb347_usb_vbus_get_current_limit(rdev); + if (ret < 0) { + dev_err(smb->dev, "failed to get USB VBUS current limit\n"); + goto done; + } + + max_uA = ret; + + ret = smb347_usb_vbus_set_new_current_limit(smb, 250000); + if (ret < 0) { + dev_err(smb->dev, "failed to preset USB VBUS current limit\n"); + goto done; + } + + ret = regmap_set_bits(smb->regmap, CMD_A, CMD_A_OTG_ENABLED); + if (ret < 0) { + dev_err(smb->dev, "failed to enable USB VBUS\n"); + goto done; + } + + smb->usb_vbus_enabled = true; + + ret = smb347_usb_vbus_set_new_current_limit(smb, max_uA); + if (ret < 0) { + dev_err(smb->dev, "failed to restore USB VBUS current limit\n"); + goto done; + } +done: + smb347_set_writable(smb, false, true); + + return ret; +} + +static int smb347_usb_vbus_regulator_disable(struct regulator_dev *rdev) +{ + struct smb347_charger *smb = rdev_get_drvdata(rdev); + int ret; + + ret = smb347_set_writable(smb, true, true); + if (ret < 0) + return ret; + + ret = regmap_clear_bits(smb->regmap, CMD_A, CMD_A_OTG_ENABLED); + if (ret < 0) { + dev_err(smb->dev, "failed to disable USB VBUS\n"); + goto done; + } + + smb->usb_vbus_enabled = false; + + if (device_property_read_bool(&rdev->dev, "summit,needs-inok-toggle")) { + unsigned int sysok = 0; + + if (smb->inok_polarity == SMB3XX_SYSOK_INOK_ACTIVE_HIGH) + sysok = CFG_SYSOK_INOK_ACTIVE_HIGH; + + ret = regmap_update_bits(smb->regmap, CFG_SYSOK, + CFG_SYSOK_INOK_ACTIVE_HIGH, sysok); + if (ret < 0) { + dev_err(smb->dev, "failed to enable INOK\n"); + goto done; + } + } + + smb347_start_stop_charging(smb); +done: + smb347_set_writable(smb, false, true); + + return ret; +} + static const struct regmap_config smb347_regmap = { .reg_bits = 8, .val_bits = 8, @@ -1303,6 +1481,14 @@ static const struct regmap_config smb347_regmap = { .cache_type = REGCACHE_FLAT, }; +static const struct regulator_ops smb347_usb_vbus_regulator_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = smb347_usb_vbus_regulator_enable, + .disable = smb347_usb_vbus_regulator_disable, + .get_current_limit = smb347_usb_vbus_get_current_limit, + .set_current_limit = smb347_usb_vbus_set_current_limit, +}; + static const struct power_supply_desc smb347_mains_desc = { .name = "smb347-mains", .type = POWER_SUPPLY_TYPE_MAINS, @@ -1319,10 +1505,24 @@ static const struct power_supply_desc smb347_usb_desc = { .num_properties = ARRAY_SIZE(smb347_properties), }; +static const struct regulator_desc smb347_usb_vbus_regulator_desc = { + .name = "smb347-usb-vbus", + .of_match = of_match_ptr("usb-vbus"), + .ops = &smb347_usb_vbus_regulator_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .enable_reg = CMD_A, + .enable_mask = CMD_A_OTG_ENABLED, + .enable_val = CMD_A_OTG_ENABLED, + .fixed_uV = 5000000, + .n_voltages = 1, +}; + static int smb347_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct power_supply_config mains_usb_cfg = {}; + struct regulator_config usb_rdev_cfg = {}; struct device *dev = &client->dev; struct smb347_charger *smb; int ret; @@ -1370,6 +1570,18 @@ static int smb347_probe(struct i2c_client *client, if (ret) return ret; + usb_rdev_cfg.dev = dev; + usb_rdev_cfg.driver_data = smb; + usb_rdev_cfg.regmap = smb->regmap; + + smb->usb_rdev = devm_regulator_register(dev, + &smb347_usb_vbus_regulator_desc, + &usb_rdev_cfg); + if (IS_ERR(smb->usb_rdev)) { + smb347_irq_disable(smb); + return PTR_ERR(smb->usb_rdev); + } + return 0; } @@ -1377,11 +1589,17 @@ static int smb347_remove(struct i2c_client *client) { struct smb347_charger *smb = i2c_get_clientdata(client); + smb347_usb_vbus_regulator_disable(smb->usb_rdev); smb347_irq_disable(smb); return 0; } +static void smb347_shutdown(struct i2c_client *client) +{ + smb347_remove(client); +} + static const struct i2c_device_id smb347_id[] = { { "smb345", SMB345 }, { "smb347", SMB347 }, @@ -1405,6 +1623,7 @@ static struct i2c_driver smb347_driver = { }, .probe = smb347_probe, .remove = smb347_remove, + .shutdown = smb347_shutdown, .id_table = smb347_id, }; module_i2c_driver(smb347_driver); From patchwork Sat Jul 17 18:21:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383777 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4DA4C6377A for ; Sat, 17 Jul 2021 18:23:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AFD156117A for ; Sat, 17 Jul 2021 18:23:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235123AbhGQS0U (ORCPT ); Sat, 17 Jul 2021 14:26:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44286 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235436AbhGQS0L (ORCPT ); Sat, 17 Jul 2021 14:26:11 -0400 Received: from mail-lj1-x22a.google.com (mail-lj1-x22a.google.com [IPv6:2a00:1450:4864:20::22a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44EE5C0613DE; Sat, 17 Jul 2021 11:23:11 -0700 (PDT) Received: by mail-lj1-x22a.google.com with SMTP id e20so18826069ljn.8; Sat, 17 Jul 2021 11:23:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Opx0gfO/khSxaDkjnYl+ZQVaHdEB8y2tIK6Yv/mgSFM=; b=MnHRsyogju5/jbLv6on/aqQa5nXqDA2Evk9nJeXEfsn8rbwS7cOauZITBIaCbbil1b E1HkMGZ0zRvoDtROleC6OXL0bnplMY8BodguP2GZsVkwt1xrTmBOS2MnFJbNMg50vXhK 6gkeUVVkcoQhcdEyyfw5bfLhDcIi/CvustAMq7sDJP0yjAknUsVmx74dDcUE4v13bZ5x Rjy6Mly5+juJnPHWpme/VY6URCQA0RaAoxwNQGhwa18/6A+Ve2riAHy0gpVAM5/7kjgG lvv+GzgRexhUrE7aZdrgpV33S3SfrvleHj0vkNkZ6LffpiP8ZpmSMAujljvWqnMZNum0 JuLQ== 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:mime-version:content-transfer-encoding; bh=Opx0gfO/khSxaDkjnYl+ZQVaHdEB8y2tIK6Yv/mgSFM=; b=UY1AedSQHSFh9hJX338BsLG96kxT34up5aUamO81+co/9isafjs6fl0y+0Q7zjcSOo Oz1GXAyQwLBw8XXyjB4lcyJfC7OfvmVJ8XXbtjdJMI7+TGYeSNOB6E+1jhOrDsESFPfu HLVElZ8wC6AJ+VAZ8LOvL6epwIbK+/rQ2DP8dyXuBJJ3XA2D5fb/zTAK8B+Yk0tYFHk/ lQpOF1Cm3o3Qrm9OPf7BXGiu/t8v8B8w3V1CWWotKyITBtbg45vLwCgsn/M09JgfsnCC iAJUb9vIXtLL6k75+nqlkXpr75DjDYJsmLoKZu+DCGiXeLB+2gaEEr7bh8PikvbKS5MH jIwQ== X-Gm-Message-State: AOAM531IqplHXTZXoqZhSju+G4BZxnCAdS92qazTPvNL5gYsb8YIcGlT 2K0Zg8h65VX+YKCFBN+RdxM= X-Google-Smtp-Source: ABdhPJzTeoCFJoGTZhr27Nej/e/okqtBdeHvLCiD+eyHmedT++EI/AsF6ahEo531wERSkiOevS1Ghg== X-Received: by 2002:a05:651c:2051:: with SMTP id t17mr1893700ljo.118.1626546189661; Sat, 17 Jul 2021 11:23:09 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:09 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 10/12] ARM: tegra: Add new properties to USB PHY device-tree nodes Date: Sat, 17 Jul 2021 21:21:32 +0300 Message-Id: <20210717182134.30262-11-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add new properties to USB PHYs needed for enabling USB OTG mode. Signed-off-by: Dmitry Osipenko --- arch/arm/boot/dts/tegra114.dtsi | 4 ++++ arch/arm/boot/dts/tegra124.dtsi | 6 ++++++ arch/arm/boot/dts/tegra20.dtsi | 6 ++++++ arch/arm/boot/dts/tegra30.dtsi | 6 ++++++ 4 files changed, 22 insertions(+) diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi index fb99b3e971c3..b391c7940b8f 100644 --- a/arch/arm/boot/dts/tegra114.dtsi +++ b/arch/arm/boot/dts/tegra114.dtsi @@ -706,6 +706,7 @@ phy1: usb-phy@7d000000 { compatible = "nvidia,tegra114-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x7d000000 0x4000>, <0x7d000000 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA114_CLK_USBD>, <&tegra_car TEGRA114_CLK_PLL_U>, @@ -725,6 +726,7 @@ phy1: usb-phy@7d000000 { nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; nvidia,has-utmi-pad-registers; + nvidia,pmc = <&tegra_pmc 0>; status = "disabled"; }; @@ -744,6 +746,7 @@ phy3: usb-phy@7d008000 { compatible = "nvidia,tegra114-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x7d008000 0x4000>, <0x7d000000 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA114_CLK_USB3>, <&tegra_car TEGRA114_CLK_PLL_U>, @@ -762,6 +765,7 @@ phy3: usb-phy@7d008000 { nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; + nvidia,pmc = <&tegra_pmc 2>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi index 8b38f123f554..ee28bb2b01ba 100644 --- a/arch/arm/boot/dts/tegra124.dtsi +++ b/arch/arm/boot/dts/tegra124.dtsi @@ -1094,6 +1094,7 @@ phy1: usb-phy@7d000000 { compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x0 0x7d000000 0x0 0x4000>, <0x0 0x7d000000 0x0 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA124_CLK_USBD>, <&tegra_car TEGRA124_CLK_PLL_U>, @@ -1113,6 +1114,7 @@ phy1: usb-phy@7d000000 { nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; nvidia,has-utmi-pad-registers; + nvidia,pmc = <&tegra_pmc 0>; status = "disabled"; }; @@ -1132,6 +1134,7 @@ phy2: usb-phy@7d004000 { compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x0 0x7d004000 0x0 0x4000>, <0x0 0x7d000000 0x0 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA124_CLK_USB2>, <&tegra_car TEGRA124_CLK_PLL_U>, @@ -1150,6 +1153,7 @@ phy2: usb-phy@7d004000 { nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; + nvidia,pmc = <&tegra_pmc 1>; status = "disabled"; }; @@ -1169,6 +1173,7 @@ phy3: usb-phy@7d008000 { compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x0 0x7d008000 0x0 0x4000>, <0x0 0x7d000000 0x0 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA124_CLK_USB3>, <&tegra_car TEGRA124_CLK_PLL_U>, @@ -1187,6 +1192,7 @@ phy3: usb-phy@7d008000 { nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; + nvidia,pmc = <&tegra_pmc 2>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 70d81a6cbc61..1dfd5880e282 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -875,6 +875,7 @@ phy1: usb-phy@c5000000 { compatible = "nvidia,tegra20-usb-phy"; reg = <0xc5000000 0x4000>, <0xc5000000 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA20_CLK_USBD>, <&tegra_car TEGRA20_CLK_PLL_U>, @@ -893,6 +894,7 @@ phy1: usb-phy@c5000000 { nvidia,xcvr-lsfslew = <1>; nvidia,xcvr-lsrslew = <1>; nvidia,has-utmi-pad-registers; + nvidia,pmc = <&tegra_pmc 0>; status = "disabled"; }; @@ -913,6 +915,7 @@ usb@c5004000 { phy2: usb-phy@c5004000 { compatible = "nvidia,tegra20-usb-phy"; reg = <0xc5004000 0x4000>; + interrupts = ; phy_type = "ulpi"; clocks = <&tegra_car TEGRA20_CLK_USB2>, <&tegra_car TEGRA20_CLK_PLL_U>, @@ -921,6 +924,7 @@ phy2: usb-phy@c5004000 { resets = <&tegra_car 58>, <&tegra_car 22>; reset-names = "usb", "utmi-pads"; #phy-cells = <0>; + nvidia,pmc = <&tegra_pmc 1>; status = "disabled"; }; @@ -942,6 +946,7 @@ phy3: usb-phy@c5008000 { compatible = "nvidia,tegra20-usb-phy"; reg = <0xc5008000 0x4000>, <0xc5000000 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA20_CLK_USB3>, <&tegra_car TEGRA20_CLK_PLL_U>, @@ -958,6 +963,7 @@ phy3: usb-phy@c5008000 { nvidia,xcvr-setup = <9>; nvidia,xcvr-lsfslew = <2>; nvidia,xcvr-lsrslew = <2>; + nvidia,pmc = <&tegra_pmc 2>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index 377bbc50ad2a..776df5a1dd3f 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -1143,6 +1143,7 @@ phy1: usb-phy@7d000000 { compatible = "nvidia,tegra30-usb-phy"; reg = <0x7d000000 0x4000>, <0x7d000000 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA30_CLK_USBD>, <&tegra_car TEGRA30_CLK_PLL_U>, @@ -1163,6 +1164,7 @@ phy1: usb-phy@7d000000 { nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; nvidia,has-utmi-pad-registers; + nvidia,pmc = <&tegra_pmc 0>; status = "disabled"; }; @@ -1184,6 +1186,7 @@ phy2: usb-phy@7d004000 { compatible = "nvidia,tegra30-usb-phy"; reg = <0x7d004000 0x4000>, <0x7d000000 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA30_CLK_USB2>, <&tegra_car TEGRA30_CLK_PLL_U>, @@ -1203,6 +1206,7 @@ phy2: usb-phy@7d004000 { nvidia,xcvr-hsslew = <32>; nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; + nvidia,pmc = <&tegra_pmc 1>; status = "disabled"; }; @@ -1224,6 +1228,7 @@ phy3: usb-phy@7d008000 { compatible = "nvidia,tegra30-usb-phy"; reg = <0x7d008000 0x4000>, <0x7d000000 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA30_CLK_USB3>, <&tegra_car TEGRA30_CLK_PLL_U>, @@ -1243,6 +1248,7 @@ phy3: usb-phy@7d008000 { nvidia,xcvr-hsslew = <32>; nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; + nvidia,pmc = <&tegra_pmc 2>; status = "disabled"; }; From patchwork Sat Jul 17 18:21:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383773 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8050C636CD for ; Sat, 17 Jul 2021 18:23:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9EF8461154 for ; Sat, 17 Jul 2021 18:23:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235587AbhGQS0Q (ORCPT ); Sat, 17 Jul 2021 14:26:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235454AbhGQS0L (ORCPT ); Sat, 17 Jul 2021 14:26:11 -0400 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F78FC0613E1; Sat, 17 Jul 2021 11:23:12 -0700 (PDT) Received: by mail-lf1-x12a.google.com with SMTP id s13so113929lfi.12; Sat, 17 Jul 2021 11:23:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=mhtGFKsHUzTaL2MCRyNEETLxWQghXk5mgR3qIkfiMRo=; b=Gg1diUprWAc2cZdVHQx9WoS1B1Ow8Z6j8TYp/Syk+Vg8KxAR2Uz1vYgh5TMs6CsePI OPRKKnRdb73OuhHHABSo4QtQKvBtPHNyPMCDnliytMhEGp90S2YxoW/3xc4eCxQ30dPG ZqupQYCkPz0ydqkALLSL50V3XEtFNElGapG1Gd/JP8vXDtCo2F3Ah86Q7GQGlscyHCBU 8XNgOCP9vpVqbUIvSU0L76mKpt5adxtW/ejJjhc35Hs0qlQ/7/ef3W+7rWXqFHPgAP/s jUKAFZ7//0g0CwYNefNDAIcevqpeRuHM1z6wHx9HLNNwM03yynjv1dYnwv4JFJjxzE2D wBWw== 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:mime-version:content-transfer-encoding; bh=mhtGFKsHUzTaL2MCRyNEETLxWQghXk5mgR3qIkfiMRo=; b=evS+CYNDH6hGEU7fSm5VfiZgFWxEw6A9M5oIc/6HY8s9D8+7ZVi7bL95RrenSEhUMF Y3gfFx7eQEl4HnYoAnf4scUWUHSH6IWJBBvL2LW6EZaIcj/N85/7O1zmm2pPOcWujgc1 Jm520octtPcVGq4wT2HSnhxJDa6qnL43SD7HbznpkZy1AS1J980GG+tD2X+v84Xvi8o1 esExSZSltQ3OUE4DTITOTeXUkEmV39QclaiFLi+dPRXr8ImBHoSvGxuWjqaqvM1h441F eTWRQ/Apo7gsnMCDVZ5BW0QeYJoKwn14xypNwRz2OsP935hlarLd1jF6Y4HrOHrRWeIj WDlQ== X-Gm-Message-State: AOAM530ht2s3zXL8AfwO2ElpVWVujLAtxtQxn5oKE7UZPkFVDQfBbQr4 p3En7wvgOMi+dvkueiEBxmc= X-Google-Smtp-Source: ABdhPJwDYGsO2a8K+7QLiUFVN9dM4bo/qtFUTx5RxuTAoLWALSfmJFbFs1uk2NfD59eYCpsQEmygZA== X-Received: by 2002:a19:6a09:: with SMTP id u9mr12345853lfu.119.1626546190562; Sat, 17 Jul 2021 11:23:10 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:10 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 11/12] ARM: tegra: nexus7: Enable USB OTG mode Date: Sat, 17 Jul 2021 21:21:33 +0300 Message-Id: <20210717182134.30262-12-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Nexus 7 has OTG-cable microUSB port, enable OTG mode. USB peripheral devices now can be connected to Nexus 7 using OTG adapter, switching USB port into host mode. Signed-off-by: Dmitry Osipenko --- .../tegra30-asus-nexus7-grouper-common.dtsi | 25 +++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi index 4f116c26f6ce..798ac22a50d2 100644 --- a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi +++ b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi @@ -941,9 +941,29 @@ power_supply: charger@6a { interrupts = ; summit,enable-charge-control = ; + summit,inok-polarity = ; summit,enable-usb-charging; monitored-battery = <&battery_cell>; + + usb_vbus: usb-vbus { + regulator-name = "usb_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-min-microamp = <750000>; + regulator-max-microamp = <750000>; + + /* + * SMB347 INOK input pin is connected to PMIC's + * ACOK output, which is fixed to ACTIVE_LOW as + * long as battery voltage is in a good range. + * + * Active INOK disables SMB347 output, so polarity + * needs to be toggled when we want to get the + * output. + */ + summit,needs-inok-toggle; + }; }; }; @@ -1017,12 +1037,13 @@ sdmmc4: mmc@78000600 { usb@7d000000 { compatible = "nvidia,tegra30-udc"; status = "okay"; - dr_mode = "peripheral"; + dr_mode = "otg"; + vbus-supply = <&usb_vbus>; }; usb-phy@7d000000 { status = "okay"; - dr_mode = "peripheral"; + dr_mode = "otg"; nvidia,hssync-start-delay = <0>; nvidia,xcvr-lsfslew = <2>; nvidia,xcvr-lsrslew = <2>; From patchwork Sat Jul 17 18:21:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12383775 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38323C636CA for ; Sat, 17 Jul 2021 18:23:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 20A4361153 for ; Sat, 17 Jul 2021 18:23:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235638AbhGQS0S (ORCPT ); Sat, 17 Jul 2021 14:26:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235444AbhGQS0L (ORCPT ); Sat, 17 Jul 2021 14:26:11 -0400 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [IPv6:2a00:1450:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E23A4C061766; Sat, 17 Jul 2021 11:23:12 -0700 (PDT) Received: by mail-lf1-x12b.google.com with SMTP id g22so9691536lfu.0; Sat, 17 Jul 2021 11:23:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=y7SaHURNXyUBjsQfPYlKAP5ckfuIlCfIy3J3ukz+tBo=; b=SaXxFTfEqC7NQlicWHSd03MNyG0RY/znqNOu4rKxPWPMT0ZQh8EUVnKZA1kpZw7MYo gMmTSBmrOtbO70/O/pRvEBTehOafvb1TYOzBqqVvsfLUir6/g4T+ZhcHrnYqeVILHoU3 kUqy8YrgPCwFY+AhW3jjdRmJStzEabxuBOJxG9S/qOTY0JW+VZxyeWmg9x+mlgrbVLgb A2ci7JvQXzeac1GoEq1MgO84reNM6bIURlghKdyH8cKX9I7kVktxW5p6wV+wP96TH49H nYjY5CrNc94G0uT2C8ibJc72V3BnwVZItcTepsUIE84a4FJfjFZRRtMSTNAKiePjd7vM 7T2g== 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:mime-version:content-transfer-encoding; bh=y7SaHURNXyUBjsQfPYlKAP5ckfuIlCfIy3J3ukz+tBo=; b=C71Y+UavVW+qJIRegTWGIgVC7FxUUfRvtcQc9rFiEaRLW2gQDfJIE6UXRhwsIulYLV dvtjnHpoCGVSzA8CH6ySOiAIg+IpYmBuoRQKNYNPuLO7RuZmY84sTNcHe2w+3K2u38No VvBVzPoOdbf0icVmkZe2Oi8UJalJYDQoZ+JE2RToZa+MR7tjvW5JXHt1qhv2t18uLqNs OxiqW4oTRozE9/v2wSmtIWc4LiT80hzNsFB70dtoU+cgRzF1r9qT3p+wMRbS5ghins9e cxm4RWSC1KogNl4tvpToGakodc+YTtu5TTdbFovyRmTPp8TFeMIzG7fEGGTp/sNPrIy/ lpDA== X-Gm-Message-State: AOAM533HabSKwygI4zEUluc5O7qdfxwHuJEZ5s2YqoSmehyLSwNngg/O d60D5nq+wNlZb4M7jq66O0k= X-Google-Smtp-Source: ABdhPJx6kt3p/8AdTmBN/YG3dBRZZZ/0Uc//D7ucLTcZ1BioGC5bY11m6kaP7JckoOWhwxwWmO47CA== X-Received: by 2002:a05:6512:16a6:: with SMTP id bu38mr12308203lfb.92.1626546191314; Sat, 17 Jul 2021 11:23:11 -0700 (PDT) Received: from localhost.localdomain (46-138-17-250.dynamic.spd-mgts.ru. [46.138.17.250]) by smtp.gmail.com with ESMTPSA id z20sm1409532ljk.123.2021.07.17.11.23.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 11:23:11 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Rob Herring , Sebastian Reichel , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 12/12] arm64: tegra132: Add new properties to USB PHY device-tree node Date: Sat, 17 Jul 2021 21:21:34 +0300 Message-Id: <20210717182134.30262-13-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210717182134.30262-1-digetx@gmail.com> References: <20210717182134.30262-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add new properties to USB PHYs needed for enabling USB OTG mode. Signed-off-by: Dmitry Osipenko --- arch/arm64/boot/dts/nvidia/tegra132.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra132.dtsi b/arch/arm64/boot/dts/nvidia/tegra132.dtsi index 9928a87f593a..f79a66226457 100644 --- a/arch/arm64/boot/dts/nvidia/tegra132.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra132.dtsi @@ -1123,6 +1123,7 @@ phy1: usb-phy@7d000000 { compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x0 0x7d000000 0x0 0x4000>, <0x0 0x7d000000 0x0 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA124_CLK_USBD>, <&tegra_car TEGRA124_CLK_PLL_U>, @@ -1142,6 +1143,7 @@ phy1: usb-phy@7d000000 { nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; nvidia,has-utmi-pad-registers; + nvidia,pmc = <&tegra_pmc 0>; status = "disabled"; }; @@ -1162,6 +1164,7 @@ phy2: usb-phy@7d004000 { compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x0 0x7d004000 0x0 0x4000>, <0x0 0x7d000000 0x0 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA124_CLK_USB2>, <&tegra_car TEGRA124_CLK_PLL_U>, @@ -1180,6 +1183,7 @@ phy2: usb-phy@7d004000 { nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; + nvidia,pmc = <&tegra_pmc 1>; status = "disabled"; }; @@ -1200,6 +1204,7 @@ phy3: usb-phy@7d008000 { compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy"; reg = <0x0 0x7d008000 0x0 0x4000>, <0x0 0x7d000000 0x0 0x4000>; + interrupts = ; phy_type = "utmi"; clocks = <&tegra_car TEGRA124_CLK_USB3>, <&tegra_car TEGRA124_CLK_PLL_U>, @@ -1218,6 +1223,7 @@ phy3: usb-phy@7d008000 { nvidia,hssquelch-level = <2>; nvidia,hsdiscon-level = <5>; nvidia,xcvr-hsslew = <12>; + nvidia,pmc = <&tegra_pmc 2>; status = "disabled"; };