Received: by 2002:a6b:fb09:0:0:0:0:0 with SMTP id h9csp5761795iog; Thu, 23 Jun 2022 05:01:26 -0700 (PDT) X-Google-Smtp-Source: AGRyM1sZt9yD93DuylIeFku466lZIEea8Mejb/7pco9UsGNTclMJMawvyutk/1n1d9snMz/S1+9Q X-Received: by 2002:a05:6402:2816:b0:434:ed38:16f3 with SMTP id h22-20020a056402281600b00434ed3816f3mr10294905ede.116.1655985686305; Thu, 23 Jun 2022 05:01:26 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1655985686; cv=none; d=google.com; s=arc-20160816; b=S4bNZq6qZbLaaioJp4cv+90pCYpPtvPNoGBIN9dVH3eiUnxZ2Ph7P71ppmrXAzpCJr ZZpKOtq4PK7Pq5yOSpPAZAC3Qf3tCVw5h1NtEu0lH47vvkuLFqlagcSmgN4uoejppnSf C8K+f6M9FGmedWP+oAAl4qdqkNuoEg7194OhLHimsL4fXP0QtNZYPlhyyv0vHrKmidVA 4d2fLhbgNNP8xPu7X50FcodVuU5IjZ8mU3OZ/kon8a/S7Gd9tim8pvVTMHmi6VWXxG2T QgGpMSnWBxNJMfD47p5qYe0jnB1izPWyS91k0dK6phtqnpSRx1M/HBr0Zy3ON2Uabz64 KHKA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=yzRNyfOcDlBYsGH9WE+VtsIxKTnRH7pWZh/Ki9A0uhs=; b=DNRko7Zx0z2DORPObYaPlQ4k8ePLUjI0JHjooo3QvnSgrZhBDdDok8wDVNdIs0YGNP GrAOmFXvEKgwPMljpZ+Lk7A7jIaARf958Ems3eXNbCd+1dkcyfVwAyHDQvFSU+WKG8f5 mGItJRYJin2lNub8xg8xIphHsy3CE9sgqycXNzeXfAADmMxO8SSAzjk+NvW/lImEy+4a VZNS9EyJUdmV0NKI/gB3q7Dlgw+CApD+ZoE1P721L5JjoBKJZu6gxkE8GtISqYcNyUio 4k/8cEi6Zp25E6a6mrsrvvyti7z+hV/jQ9N1Yy4FnIUIoZwfXF4ArtG9vyUah6yMwh2p XBmA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=o9F3hktT; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id z16-20020a05640235d000b004359f333398si9099025edc.321.2022.06.23.05.00.57; Thu, 23 Jun 2022 05:01:26 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=o9F3hktT; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231772AbiFWL7L (ORCPT + 99 others); Thu, 23 Jun 2022 07:59:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231796AbiFWL60 (ORCPT ); Thu, 23 Jun 2022 07:58:26 -0400 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFE8825E5; Thu, 23 Jun 2022 04:57:54 -0700 (PDT) Received: by mail-pf1-x42a.google.com with SMTP id p14so13206648pfh.6; Thu, 23 Jun 2022 04:57:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yzRNyfOcDlBYsGH9WE+VtsIxKTnRH7pWZh/Ki9A0uhs=; b=o9F3hktTlv/IzP4q0mAOyrTBHTJNaoQcBpUiui/DMPFlveEhC+YqA1kFRYG8rxTpM+ fHm6/d9WU5Mad+guyS8mL1alwqn7xigq7b8yEOY1/N3AHDazuiJxAN9MRW5qECJP8yeb 3r5xllG3SQeLtNsGglGn5gMMuUgt4bdG1r3dZoMi4vkLpeK3e/+QX1YdpuIRmt9Mt6Dp T1Ia+EGdxO4OE0NDJwSdfzoPquRdpBpUq92UHuxKWBI9BSctl2LLeJYuZr2TZZr72fGM +QPVYWgmVbc0/HcplXy9LL1xOoQSNGAEk+WJXFyUichxhqNvDi6u18kQLw6OJPaYTKHi szAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=yzRNyfOcDlBYsGH9WE+VtsIxKTnRH7pWZh/Ki9A0uhs=; b=Kpi4NMX1CG10TIGxxwrC739nREjNtfSgYNSOOgkW0kRzJkJSNiqf6y3l4xAXacGTOB jeEMwm6jD4LcOXdNkrSQSINWr/yh5iS0B/bI+BLuOVV9R9F3QDxYz44ager2l6H8xK15 /SK4xgPrbQdec3YiW/ishCFgv8eMY07iHEFbwiBrgOkW1M6rmlL9eZyJBarkulPac2hy Fwg21CXZ4B8XjyrR0P36rstq4TiRkzvKf+ULM0alwv38rAJNJflG6DQU+GQ27FCNkI0g 2NPQo+zkQ7UtzQvxCpgTbgay9to7CyOnqavmO7Kb7w3uPOYlUK5T4Vs5qW/LENj/MhDN nwHA== X-Gm-Message-State: AJIora/PSfOfhdLDkStzDQmA0d1zfPujLithFlGkLaGKulD59y9oSQCo 1e4ewbK5y2EO9WqZ1k5RCOQ= X-Received: by 2002:a62:4e45:0:b0:525:3b6c:25b7 with SMTP id c66-20020a624e45000000b005253b6c25b7mr12249444pfb.75.1655985473800; Thu, 23 Jun 2022 04:57:53 -0700 (PDT) Received: from RD-3580-24288.rt.l (111-71-94-93.emome-ip.hinet.net. [111.71.94.93]) by smtp.gmail.com with ESMTPSA id t6-20020a63b246000000b003fbfe88be17sm15016516pgo.24.2022.06.23.04.57.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Jun 2022 04:57:53 -0700 (PDT) From: ChiaEn Wu To: lee.jones@linaro.org, daniel.thompson@linaro.org, jingoohan1@gmail.com, pavel@ucw.cz, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, sre@kernel.org, chunfeng.yun@mediatek.com, gregkh@linuxfoundation.org, jic23@kernel.org, lars@metafoo.de, lgirdwood@gmail.com, broonie@kernel.org, linux@roeck-us.net, heikki.krogerus@linux.intel.com, deller@gmx.de Cc: chiaen_wu@richtek.com, alice_chen@richtek.com, cy_huang@richtek.com, dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-iio@vger.kernel.org, linux-fbdev@vger.kernel.org, szunichen@gmail.com Subject: [PATCH v3 08/14] usb: typec: tcpci_mt6370: Add Mediatek MT6370 tcpci driver Date: Thu, 23 Jun 2022 19:56:25 +0800 Message-Id: <20220623115631.22209-9-peterwu.pub@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220623115631.22209-1-peterwu.pub@gmail.com> References: <20220623115631.22209-1-peterwu.pub@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: ChiYuan Huang Add chip level mt6370 tcpci driver. Signed-off-by: ChiYuan Huang --- drivers/usb/typec/tcpm/Kconfig | 8 ++ drivers/usb/typec/tcpm/Makefile | 1 + drivers/usb/typec/tcpm/tcpci_mt6370.c | 212 ++++++++++++++++++++++++++++++++++ 3 files changed, 221 insertions(+) create mode 100644 drivers/usb/typec/tcpm/tcpci_mt6370.c diff --git a/drivers/usb/typec/tcpm/Kconfig b/drivers/usb/typec/tcpm/Kconfig index 557f392..f4b7363 100644 --- a/drivers/usb/typec/tcpm/Kconfig +++ b/drivers/usb/typec/tcpm/Kconfig @@ -35,6 +35,14 @@ config TYPEC_MT6360 USB Type-C. It works with Type-C Port Controller Manager to provide USB PD and USB Type-C functionalities. +config TYPEC_TCPCI_MT6370 + tristate "Mediatek MT6370 Type-C driver" + depends on MFD_MT6370 + help + Mediatek MT6370 is a multi-functional IC that includes + USB Type-C. It works with Type-C Port Controller Manager + to provide USB PD and USB Type-C functionalities. + config TYPEC_TCPCI_MAXIM tristate "Maxim TCPCI based Type-C chip driver" help diff --git a/drivers/usb/typec/tcpm/Makefile b/drivers/usb/typec/tcpm/Makefile index 7d499f3..906d9dc 100644 --- a/drivers/usb/typec/tcpm/Makefile +++ b/drivers/usb/typec/tcpm/Makefile @@ -6,4 +6,5 @@ typec_wcove-y := wcove.o obj-$(CONFIG_TYPEC_TCPCI) += tcpci.o obj-$(CONFIG_TYPEC_RT1711H) += tcpci_rt1711h.o obj-$(CONFIG_TYPEC_MT6360) += tcpci_mt6360.o +obj-$(CONFIG_TYPEC_TCPCI_MT6370) += tcpci_mt6370.o obj-$(CONFIG_TYPEC_TCPCI_MAXIM) += tcpci_maxim.o diff --git a/drivers/usb/typec/tcpm/tcpci_mt6370.c b/drivers/usb/typec/tcpm/tcpci_mt6370.c new file mode 100644 index 0000000..ce7f5e0 --- /dev/null +++ b/drivers/usb/typec/tcpm/tcpci_mt6370.c @@ -0,0 +1,212 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "tcpci.h" + +#define MT6370_REG_SYSCTRL8 0x9B + +#define MT6370_AUTOIDLE_MASK BIT(3) + +#define MT6370_VENDOR_ID 0x29CF +#define MT6370_TCPC_DID_A 0x2170 + +struct mt6370_priv { + struct device *dev; + struct regulator *vbus; + struct tcpci *tcpci; + struct tcpci_data tcpci_data; + int irq; +}; + +static const struct reg_sequence mt6370_reg_init[] = { + REG_SEQ(0xA0, 0x1, 1000), + REG_SEQ(0x81, 0x38, 0), + REG_SEQ(0x82, 0x82, 0), + REG_SEQ(0xBA, 0xFC, 0), + REG_SEQ(0xBB, 0x50, 0), + REG_SEQ(0x9E, 0x8F, 0), + REG_SEQ(0xA1, 0x5, 0), + REG_SEQ(0xA2, 0x4, 0), + REG_SEQ(0xA3, 0x4A, 0), + REG_SEQ(0xA4, 0x01, 0), + REG_SEQ(0x95, 0x01, 0), + REG_SEQ(0x80, 0x71, 0), + REG_SEQ(0x9B, 0x3A, 1000) +}; + +static int mt6370_tcpc_init(struct tcpci *tcpci, struct tcpci_data *data) +{ + u16 did; + int ret; + + ret = regmap_register_patch(data->regmap, mt6370_reg_init, + ARRAY_SIZE(mt6370_reg_init)); + if (ret) + return ret; + + ret = regmap_raw_read(data->regmap, TCPC_BCD_DEV, &did, sizeof(u16)); + if (ret) + return ret; + + if (did == MT6370_TCPC_DID_A) { + ret = regmap_write(data->regmap, TCPC_FAULT_CTRL, 0x80); + if (ret) + return ret; + } + + return 0; +} + +static int mt6370_tcpc_set_vconn(struct tcpci *tcpci, struct tcpci_data *data, + bool enable) +{ + return regmap_update_bits(data->regmap, MT6370_REG_SYSCTRL8, + MT6370_AUTOIDLE_MASK, + !enable ? MT6370_AUTOIDLE_MASK : 0); +} + +static int mt6370_tcpc_set_vbus(struct tcpci *tcpci, struct tcpci_data *data, + bool source, bool sink) +{ + struct mt6370_priv *priv = container_of(data, struct mt6370_priv, + tcpci_data); + int ret; + + ret = regulator_is_enabled(priv->vbus); + if (ret < 0) + return ret; + + if (ret && !source) + ret = regulator_disable(priv->vbus); + else if (!ret && source) + ret = regulator_enable(priv->vbus); + else + ret = 0; + + return ret; +} + +static irqreturn_t mt6370_irq_handler(int irq, void *dev_id) +{ + struct mt6370_priv *priv = dev_id; + + return tcpci_irq(priv->tcpci); +} + +static int mt6370_check_vendor_info(struct mt6370_priv *priv) +{ + struct regmap *regmap = priv->tcpci_data.regmap; + u16 vid; + int ret; + + ret = regmap_raw_read(regmap, TCPC_VENDOR_ID, &vid, sizeof(u16)); + if (ret) + return ret; + + if (vid != MT6370_VENDOR_ID) { + dev_err(priv->dev, "Vendor ID not correct 0x%02x\n", vid); + return -ENODEV; + } + + return 0; +} + +static int mt6370_tcpc_probe(struct platform_device *pdev) +{ + struct mt6370_priv *priv; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->dev = &pdev->dev; + platform_set_drvdata(pdev, priv); + + priv->tcpci_data.regmap = dev_get_regmap(pdev->dev.parent, NULL); + if (!priv->tcpci_data.regmap) { + dev_err(&pdev->dev, "Failed to init regmap\n"); + return -ENODEV; + } + + ret = mt6370_check_vendor_info(priv); + if (ret) { + dev_err(&pdev->dev, "Failed to check vendor info (%d)\n", ret); + return ret; + } + + priv->irq = platform_get_irq(pdev, 0); + if (priv->irq < 0) { + dev_err(&pdev->dev, "Failed to get TCPC irq (%d)\n", priv->irq); + return priv->irq; + } + + /* Assign TCPCI feature and ops */ + priv->tcpci_data.auto_discharge_disconnect = 1; + priv->tcpci_data.init = mt6370_tcpc_init; + priv->tcpci_data.set_vconn = mt6370_tcpc_set_vconn; + + priv->vbus = devm_regulator_get_optional(&pdev->dev, "vbus"); + if (!IS_ERR(priv->vbus)) + priv->tcpci_data.set_vbus = mt6370_tcpc_set_vbus; + + priv->tcpci = tcpci_register_port(&pdev->dev, &priv->tcpci_data); + if (IS_ERR(priv->tcpci)) { + dev_err(&pdev->dev, "Failed to register tcpci port\n"); + return PTR_ERR(priv->tcpci); + } + + ret = devm_request_threaded_irq(&pdev->dev, priv->irq, NULL, + mt6370_irq_handler, IRQF_ONESHOT, + dev_name(&pdev->dev), priv); + if (ret) { + dev_err(&pdev->dev, "Failed to allocate irq (%d)\n", ret); + tcpci_unregister_port(priv->tcpci); + return ret; + } + + device_init_wakeup(&pdev->dev, true); + dev_pm_set_wake_irq(&pdev->dev, priv->irq); + return 0; +} + +static int mt6370_tcpc_remove(struct platform_device *pdev) +{ + struct mt6370_priv *priv = platform_get_drvdata(pdev); + + disable_irq(priv->irq); + tcpci_unregister_port(priv->tcpci); + dev_pm_clear_wake_irq(&pdev->dev); + device_init_wakeup(&pdev->dev, false); + return 0; +} + +static const struct of_device_id mt6370_tcpc_devid_table[] = { + { .compatible = "mediatek,mt6370-tcpc", }, + {} +}; +MODULE_DEVICE_TABLE(of, mt6370_tcpc_devid_table); + +static struct platform_driver mt6370_tcpc_driver = { + .driver = { + .name = "mt6370-tcpc", + .of_match_table = mt6370_tcpc_devid_table, + }, + .probe = mt6370_tcpc_probe, + .remove = mt6370_tcpc_remove, +}; +module_platform_driver(mt6370_tcpc_driver); + +MODULE_AUTHOR("ChiYuan Huang "); +MODULE_DESCRIPTION("MT6370 USB Type-C Port Controller Interface Driver"); +MODULE_LICENSE("GPL v2"); -- 2.7.4