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Tue, 23 Aug 2022 11:53:15 +0000 From: Xu Yang To: heikki.krogerus@linux.intel.com, robh+dt@kernel.org, peda@axentia.se, shawnguo@kernel.org Cc: gregkh@linuxfoundation.org, linux@roeck-us.net, jun.li@nxp.com, xu.yang_2@nxp.com, linux-usb@vger.kernel.org, linux-imx@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/4] dt-bindings: connector: Add typec orientation switch properties Date: Wed, 24 Aug 2022 03:54:26 +0800 Message-Id: <20220823195429.1243516-2-xu.yang_2@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220823195429.1243516-1-xu.yang_2@nxp.com> References: <20220823195429.1243516-1-xu.yang_2@nxp.com> X-ClientProxiedBy: SG2PR04CA0155.apcprd04.prod.outlook.com (2603:1096:4::17) To PAXPR04MB8784.eurprd04.prod.outlook.com (2603:10a6:102:20f::23) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 66fd00ff-cc2d-4590-c13b-08da84fe101f X-MS-TrafficTypeDiagnostic: VI1PR0402MB2720:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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So we can use mux controller to control simple gpio switch or other types of switch. This will cover the following typec switch use case: High Speed, Super Speed and Sideband switch. Signed-off-by: Xu Yang --- Changes since v1: - No changes. .../bindings/connector/usb-connector.yaml | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml index ae515651fc6b..47f53cdbf31a 100644 --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml @@ -221,6 +221,24 @@ properties: SNK_READY for non-pd link. type: boolean + # The following are optional properties for "usb-c-connector". + mux-controls: + description: Mux controller node to use for orientation switch selection. This mux controller + could handle High Speed, Super Speed and Sideband switch use case one time. In orde to do so, + besides mux settings need to be properly configured for each switch under mux-controller node, + correct states should also be assigned to typec-switch-states parameter. + maxItems: 1 + + typec-switch-states: + description: An ordered u32 array describing the mux state value for each typec orientations. + Three states correspond to NONE(high impedance), NORMAL, REVERSE respectively. If there is + no HW mux state for NONE, use value of NORMAL or REVERSE for it. If this mux controller + handle more than 1 switch, correct states value need to be caculated according to the mux + settings. + minItems: 3 + maxItems: 3 + $ref: /schemas/types.yaml#/definitions/uint32-array + dependencies: sink-vdos-v1: [ 'sink-vdos' ] sink-vdos: [ 'sink-vdos-v1' ] From patchwork Tue Aug 23 19:54:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xu Yang X-Patchwork-Id: 600221 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4787CC3F6B0 for ; Tue, 23 Aug 2022 15:51:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238349AbiHWPvG (ORCPT ); Tue, 23 Aug 2022 11:51:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239108AbiHWPuR (ORCPT ); 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Signed-off-by: Xu Yang --- Changes since v1: - convert to use fwnode interface drivers/mux/core.c | 65 +++++++++++++++++++++++----------------------- 1 file changed, 33 insertions(+), 32 deletions(-) diff --git a/drivers/mux/core.c b/drivers/mux/core.c index 49bedbe6316c..e30e859efd33 100644 --- a/drivers/mux/core.c +++ b/drivers/mux/core.c @@ -18,8 +18,7 @@ #include #include #include -#include -#include +#include #include /* @@ -510,11 +509,11 @@ int mux_state_deselect(struct mux_state *mstate) EXPORT_SYMBOL_GPL(mux_state_deselect); /* Note this function returns a reference to the mux_chip dev. */ -static struct mux_chip *of_find_mux_chip_by_node(struct device_node *np) +static struct mux_chip *of_find_mux_chip_by_node(struct fwnode_handle *fwnode) { struct device *dev; - dev = class_find_device_by_of_node(&mux_class, np); + dev = class_find_device_by_fwnode(&mux_class, fwnode); return dev ? to_mux_chip(dev) : NULL; } @@ -531,8 +530,8 @@ static struct mux_chip *of_find_mux_chip_by_node(struct device_node *np) static struct mux_control *mux_get(struct device *dev, const char *mux_name, unsigned int *state) { - struct device_node *np = dev->of_node; - struct of_phandle_args args; + struct fwnode_handle *fwnode = dev_fwnode(dev); + struct fwnode_reference_args args; struct mux_chip *mux_chip; unsigned int controller; int index = 0; @@ -540,11 +539,11 @@ static struct mux_control *mux_get(struct device *dev, const char *mux_name, if (mux_name) { if (state) - index = of_property_match_string(np, "mux-state-names", - mux_name); + index = fwnode_property_match_string(fwnode, + "mux-state-names", mux_name); else - index = of_property_match_string(np, "mux-control-names", - mux_name); + index = fwnode_property_match_string(fwnode, + "mux-control-names", mux_name); if (index < 0) { dev_err(dev, "mux controller '%s' not found\n", mux_name); @@ -553,35 +552,37 @@ static struct mux_control *mux_get(struct device *dev, const char *mux_name, } if (state) - ret = of_parse_phandle_with_args(np, - "mux-states", "#mux-state-cells", - index, &args); + ret = fwnode_property_get_reference_args(fwnode, + "mux-states", "#mux-state-cells", + 0, index, &args); else - ret = of_parse_phandle_with_args(np, - "mux-controls", "#mux-control-cells", - index, &args); + ret = fwnode_property_get_reference_args(fwnode, + "mux-controls", "#mux-control-cells", + 0, index, &args); + if (ret) { - dev_err(dev, "%pOF: failed to get mux-%s %s(%i)\n", - np, state ? "state" : "control", mux_name ?: "", index); + dev_err(dev, "%pfw: failed to get mux-%s %s(%i)\n", + fwnode, state ? "state" : "control", mux_name ?: "", + index); return ERR_PTR(ret); } - mux_chip = of_find_mux_chip_by_node(args.np); - of_node_put(args.np); + mux_chip = of_find_mux_chip_by_node(args.fwnode); + fwnode_handle_put(args.fwnode); if (!mux_chip) return ERR_PTR(-EPROBE_DEFER); controller = 0; if (state) { - if (args.args_count > 2 || args.args_count == 0 || - (args.args_count < 2 && mux_chip->controllers > 1)) { - dev_err(dev, "%pOF: wrong #mux-state-cells for %pOF\n", - np, args.np); + if (args.nargs > 2 || args.nargs == 0 || + (args.nargs < 2 && mux_chip->controllers > 1)) { + dev_err(dev, "%pfw: wrong #mux-state-cells for %pfw\n", + fwnode, args.fwnode); put_device(&mux_chip->dev); return ERR_PTR(-EINVAL); } - if (args.args_count == 2) { + if (args.nargs == 2) { controller = args.args[0]; *state = args.args[1]; } else { @@ -589,21 +590,21 @@ static struct mux_control *mux_get(struct device *dev, const char *mux_name, } } else { - if (args.args_count > 1 || - (!args.args_count && mux_chip->controllers > 1)) { - dev_err(dev, "%pOF: wrong #mux-control-cells for %pOF\n", - np, args.np); + if (args.nargs > 1 || + (!args.nargs && mux_chip->controllers > 1)) { + dev_err(dev, "%pfw: wrong #mux-control-cells for %pfw\n", + fwnode, args.fwnode); put_device(&mux_chip->dev); return ERR_PTR(-EINVAL); } - if (args.args_count) + if (args.nargs) controller = args.args[0]; } if (controller >= mux_chip->controllers) { - dev_err(dev, "%pOF: bad mux controller %u specified in %pOF\n", - np, controller, args.np); + dev_err(dev, "%pfw: bad mux controller %u specified in %pfw\n", + fwnode, controller, args.fwnode); put_device(&mux_chip->dev); return ERR_PTR(-EINVAL); } From patchwork Tue Aug 23 19:54:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xu Yang X-Patchwork-Id: 599695 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5E045C32789 for ; 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Also, one mux controller could cover highspeed, superspeed and sideband use case one time in this implementation. Reported-by: kernel test robot Signed-off-by: Xu Yang --- Changes since v1: - add build dependence (select MULTIPLEXER) - improve Multiplexer control logic drivers/usb/typec/Kconfig | 1 + drivers/usb/typec/mux.c | 76 ++++++++++++++++++++++++++++++++++- include/linux/usb/typec_mux.h | 7 +--- 3 files changed, 78 insertions(+), 6 deletions(-) diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig index 5defdfead653..73d4976d8148 100644 --- a/drivers/usb/typec/Kconfig +++ b/drivers/usb/typec/Kconfig @@ -2,6 +2,7 @@ menuconfig TYPEC tristate "USB Type-C Support" + select MULTIPLEXER help USB Type-C Specification defines a cable and connector for USB where only one type of plug is supported on both ends, i.e. there will not diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index 464330776cd6..05e6ed217620 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "class.h" #include "mux.h" @@ -22,6 +23,11 @@ struct typec_switch { struct typec_switch_dev *sw_devs[TYPEC_MUX_MAX_DEVS]; unsigned int num_sw_devs; + + /* Could handle HighSpeed, SuperSpeed, Sideband switch one time */ + struct mux_control *mux_switch; + /* 3 state correspond to NONE, NORMAL, REVERSE for all switches */ + int mux_states[3]; }; static int switch_fwnode_match(struct device *dev, const void *fwnode) @@ -117,6 +123,58 @@ struct typec_switch *fwnode_typec_switch_get(struct fwnode_handle *fwnode) } EXPORT_SYMBOL_GPL(fwnode_typec_switch_get); +static struct typec_switch *mux_control_typec_switch_get(struct device *dev) +{ + struct typec_switch *sw; + struct mux_control *mux; + int ret; + + if (!device_property_present(dev, "mux-controls")) + return NULL; + + sw = kzalloc(sizeof(*sw), GFP_KERNEL); + if (!sw) + return ERR_PTR(-ENOMEM); + + mux = mux_control_get(dev, NULL); + if (!IS_ERR(mux)) { + sw->mux_switch = mux; + ret = device_property_read_u32_array(dev, + "typec-switch-states", sw->mux_states, 3); + if (ret) { + kfree(sw); + return ERR_PTR(ret); + } + } else { + kfree(sw); + return ERR_CAST(mux); + } + + return sw; +} + +/** + * typec_switch_get - Find USB Type-C orientation switch + * @dev: The device using switch + * + * Finds a switch used by @dev. Returns a reference to the switch on + * success, NULL if no matching connection was found, or + * ERR_PTR(-EPROBE_DEFER) when a connection was found but the switch + * has not been enumerated yet, or ERR_PTR with a negative errno. + */ +struct typec_switch *typec_switch_get(struct device *dev) +{ + struct typec_switch *sw; + + sw = fwnode_typec_switch_get(dev_fwnode(dev)); + if (!sw) + /* Try get switch based on mux control */ + sw = mux_control_typec_switch_get(dev); + + return sw; +} +EXPORT_SYMBOL_GPL(typec_switch_get); + /** * typec_switch_put - Release USB Type-C orientation switch * @sw: USB Type-C orientation switch @@ -137,6 +195,10 @@ void typec_switch_put(struct typec_switch *sw) module_put(sw_dev->dev.parent->driver->owner); put_device(&sw_dev->dev); } + + if (sw->mux_switch) + mux_control_put(sw->mux_switch); + kfree(sw); } EXPORT_SYMBOL_GPL(typec_switch_put); @@ -204,6 +266,7 @@ int typec_switch_set(struct typec_switch *sw, enum typec_orientation orientation) { struct typec_switch_dev *sw_dev; + struct mux_control *mux; unsigned int i; int ret; @@ -218,7 +281,18 @@ int typec_switch_set(struct typec_switch *sw, return ret; } - return 0; + mux = sw->mux_switch; + if (!mux) + return 0; + + ret = mux_control_select(mux, sw->mux_states[orientation]); + if (ret) + return ret; + + /* Keep it as it is since idle_state is MUX_IDLE_AS_IS */ + ret = mux_control_deselect(mux); + + return ret; } EXPORT_SYMBOL_GPL(typec_switch_set); diff --git a/include/linux/usb/typec_mux.h b/include/linux/usb/typec_mux.h index 9292f0e07846..2287e5a5f591 100644 --- a/include/linux/usb/typec_mux.h +++ b/include/linux/usb/typec_mux.h @@ -24,16 +24,13 @@ struct typec_switch_desc { void *drvdata; }; + +struct typec_switch *typec_switch_get(struct device *dev); struct typec_switch *fwnode_typec_switch_get(struct fwnode_handle *fwnode); void typec_switch_put(struct typec_switch *sw); int typec_switch_set(struct typec_switch *sw, enum typec_orientation orientation); -static inline struct typec_switch *typec_switch_get(struct device *dev) -{ - return fwnode_typec_switch_get(dev_fwnode(dev)); -} - struct typec_switch_dev * typec_switch_register(struct device *parent, const struct typec_switch_desc *desc); From patchwork Tue Aug 23 19:54:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xu Yang X-Patchwork-Id: 599696 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2830C32789 for ; Tue, 23 Aug 2022 14:37:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243192AbiHWOhT (ORCPT ); Tue, 23 Aug 2022 10:37:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243944AbiHWOhA (ORCPT ); Tue, 23 Aug 2022 10:37:00 -0400 Received: from EUR01-HE1-obe.outbound.protection.outlook.com (mail-he1eur01on062b.outbound.protection.outlook.com [IPv6:2a01:111:f400:fe1e::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D636515DB3B; 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Tue, 23 Aug 2022 11:53:26 +0000 From: Xu Yang To: heikki.krogerus@linux.intel.com, robh+dt@kernel.org, peda@axentia.se, shawnguo@kernel.org Cc: gregkh@linuxfoundation.org, linux@roeck-us.net, jun.li@nxp.com, xu.yang_2@nxp.com, linux-usb@vger.kernel.org, linux-imx@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 4/4] arm64: dts: imx8mp-evk: add typec node Date: Wed, 24 Aug 2022 03:54:29 +0800 Message-Id: <20220823195429.1243516-5-xu.yang_2@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220823195429.1243516-1-xu.yang_2@nxp.com> References: <20220823195429.1243516-1-xu.yang_2@nxp.com> X-ClientProxiedBy: SG2PR04CA0155.apcprd04.prod.outlook.com (2603:1096:4::17) To PAXPR04MB8784.eurprd04.prod.outlook.com (2603:10a6:102:20f::23) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 38e7ec1a-0268-4f31-48b9-08da84fe167a X-MS-TrafficTypeDiagnostic: VI1PR0402MB2720:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Xu Yang --- Changes since v1: - change mux controller idle-state to MUX_IDLE_AS_IS arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 122 +++++++++++++++++++ 1 file changed, 122 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index f6b017ab5f53..a8e45a724fd9 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -5,6 +5,8 @@ /dts-v1/; +#include +#include #include "imx8mp.dtsi" / { @@ -65,6 +67,22 @@ reg_usdhc2_vmmc: regulator-usdhc2 { gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>; enable-active-high; }; + + mux: mux-controller { + compatible = "gpio-mux"; + #mux-control-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_typec_mux>; + mux-gpios = <&gpio4 20 GPIO_ACTIVE_HIGH>, + <&gpio2 20 GPIO_ACTIVE_HIGH>; + idle-state = ; + + port { + usb3_data_ss: endpoint { + remote-endpoint = <&typec_con_ss>; + }; + }; + }; }; &A53_0 { @@ -299,6 +317,56 @@ LDO5 { }; }; +&i2c2 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c2>; + status = "okay"; + + ptn5110: tcpc@50 { + compatible = "nxp,ptn5110"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_typec>; + reg = <0x50>; + interrupt-parent = <&gpio4>; + interrupts = <19 8>; + + port { + typec_dr_sw: endpoint { + remote-endpoint = <&usb3_drd_sw>; + }; + }; + + usb_con: connector { + compatible = "usb-c-connector"; + label = "USB-C"; + power-role = "dual"; + data-role = "dual"; + try-power-role = "sink"; + source-pdos = ; + sink-pdos = ; + op-sink-microwatt = <15000000>; + self-powered; + + mux-controls = <&mux>; + typec-switch-states = <2>, <0>, <1>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@1 { + reg = <1>; + typec_con_ss: endpoint { + remote-endpoint = <&usb3_data_ss>; + }; + }; + }; + }; + }; +}; + &i2c3 { clock-frequency = <400000>; pinctrl-names = "default"; @@ -361,7 +429,41 @@ &uart2 { status = "okay"; }; +&usb3_phy0 { + fsl,phy-tx-vref-tune = <0xe>; + fsl,phy-tx-preemp-amp-tune = <3>; + fsl,phy-tx-vboost-level = <5>; + fsl,phy-comp-dis-tune = <7>; + fsl,pcs-tx-deemph-3p5db = <0x21>; + fsl,phy-pcs-tx-swing-full = <0x7f>; + status = "okay"; +}; + +&usb3_0 { + status = "okay"; +}; + +&usb_dwc3_0 { + dr_mode = "otg"; + hnp-disable; + srp-disable; + adp-disable; + usb-role-switch; + role-switch-default-mode = "none"; + snps,dis-u1-entry-quirk; + snps,dis-u2-entry-quirk; + status = "okay"; + + port { + usb3_drd_sw: endpoint { + remote-endpoint = <&typec_dr_sw>; + }; + }; +}; + &usb3_phy1 { + fsl,phy-tx-preemp-amp-tune = <3>; + fsl,phy-tx-vref-tune = <0xb>; status = "okay"; }; @@ -488,6 +590,13 @@ MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA 0x400001c2 >; }; + pinctrl_i2c2: i2c2grp { + fsl,pins = < + MX8MP_IOMUXC_I2C2_SCL__I2C2_SCL 0x400001c2 + MX8MP_IOMUXC_I2C2_SDA__I2C2_SDA 0x400001c2 + >; + }; + pinctrl_i2c3: i2c3grp { fsl,pins = < MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL 0x400001c2 @@ -527,6 +636,19 @@ MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX 0x140 >; }; + pinctrl_typec: typec1grp { + fsl,pins = < + MX8MP_IOMUXC_SAI1_TXD7__GPIO4_IO19 0x1c4 + >; + }; + + pinctrl_typec_mux: typec1muxgrp { + fsl,pins = < + MX8MP_IOMUXC_SAI1_MCLK__GPIO4_IO20 0x16 + MX8MP_IOMUXC_SD2_WP__GPIO2_IO20 0x16 + >; + }; + pinctrl_usb1_vbus: usb1grp { fsl,pins = < MX8MP_IOMUXC_GPIO1_IO14__USB2_OTG_PWR 0x10