From patchwork Sun Mar 12 17:14:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cixi Geng X-Patchwork-Id: 13171610 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 2D421C6FD19 for ; Sun, 12 Mar 2023 17:22:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229516AbjCLRWd (ORCPT ); Sun, 12 Mar 2023 13:22:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229814AbjCLRWb (ORCPT ); Sun, 12 Mar 2023 13:22:31 -0400 X-Greylist: delayed 434 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Sun, 12 Mar 2023 10:22:14 PDT Received: from out-5.mta0.migadu.com (out-5.mta0.migadu.com [91.218.175.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 695C046158 for ; Sun, 12 Mar 2023 10:22:14 -0700 (PDT) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1678641298; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Mb4vcnMoEk2i3pcE+eV8FNHRJlRbgjIuCc3blHn1k6Q=; b=mJ63MwxTFKfT8brCcSjLj5ewAY8K9xVdzZkbDkRXQwGCrtrx+EOcfYwG7odI0EhZcOWaqt RlcvTKGjGmpVt6/5UNO+K94sAUj6krmhSae26TD5R2bNUG66LsFRdMpHSbU91hGmb8HHTs D4/wavrjpH0PMOwCqs1AA5DrMpcIaUQ= From: Cixi Geng To: gregkh@linuxfoundation.org, orsonzhai@gmail.com, baolin.wang@linux.alibaba.com, zhang.lyra@gmail.com, arnd@arndb.de, tony@atomide.com, felipe.balbi@linux.intel.com, paul@crapouillou.net, linus.walleij@linaro.org, cixi.geng1@unisoc.com, gengcixi@gmail.com Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [RFC PATCH v1] usb/phy add sprd ums512 usbphy Date: Mon, 13 Mar 2023 01:14:38 +0800 Message-Id: <20230312171438.177952-1-cixi.geng@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Cixi Geng This driver is support USB2 phy for Spreadtrum UMS512 SOC's, Signed-off-by: Cixi Geng --- drivers/usb/phy/Kconfig | 10 + drivers/usb/phy/Makefile | 1 + drivers/usb/phy/phy-sprd-ums512.c | 511 ++++++++++++++++++++++++++++++ drivers/usb/phy/phy-sprd-ums512.h | 39 +++ 4 files changed, 561 insertions(+) create mode 100644 drivers/usb/phy/phy-sprd-ums512.c create mode 100644 drivers/usb/phy/phy-sprd-ums512.h diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 5f629d7cad64..fa5564e6f3a3 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -158,6 +158,16 @@ config USB_TEGRA_PHY This driver provides PHY support for the USB controllers found on NVIDIA Tegra SoC's. +config USB_SPRD_UMS512_PHY + tristate "Spreadtrum ums512 USB2 PHY Driver" + depends on ARCH_SPRD || COMPILE_TEST + select USB_PHY + select EXTCON_USB_GPIO + help + Enable this to support the SPRD ums512 USB2 PHY that is part of SOC. + This driver takes care of all the PHY functionality, normally paired with + DesignWare USB20 (DRD) Controller. + config USB_ULPI bool "Generic ULPI Transceiver Driver" depends on ARM || ARM64 || COMPILE_TEST diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index e5d619b4d8f6..ce45ee0f12a8 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -22,4 +22,5 @@ obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o obj-$(CONFIG_USB_ULPI) += phy-ulpi.o obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o +obj-$(CONFIG_USB_SPRD_UMS512_PHY) += phy-sprd-ums512.o obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o diff --git a/drivers/usb/phy/phy-sprd-ums512.c b/drivers/usb/phy/phy-sprd-ums512.c new file mode 100644 index 000000000000..025f45e8d509 --- /dev/null +++ b/drivers/usb/phy/phy-sprd-ums512.c @@ -0,0 +1,511 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Driver for Unisoc USB PHY driver + * + * Copyright (C) 2023 Unisoc Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "phy-sprd-ums512.h" + +struct sprd_hsphy { + struct device *dev; + struct usb_phy phy; + struct regulator *vdd; + struct regmap *hsphy_glb; + struct regmap *ana_g2; + struct regmap *pmic; + u32 vdd_vol; + atomic_t reset; + atomic_t inited; + bool is_host; +}; + +#define TUNEHSAMP_2_6MA (3 << 25) +#define TFREGRES_TUNE_VALUE (0x14 << 19) +#define SC2730_CHARGE_STATUS 0x1b9c +#define BIT_CHG_DET_DONE BIT(11) +#define BIT_SDP_INT BIT(7) +#define BIT_DCP_INT BIT(6) +#define BIT_CDP_INT BIT(5) + +static enum usb_charger_type sc27xx_charger_detect(struct regmap *regmap) +{ + enum usb_charger_type type; + u32 status = 0, val; + int ret, cnt = 10; + + do { + ret = regmap_read(regmap, SC2730_CHARGE_STATUS, &val); + if (ret) + return UNKNOWN_TYPE; + + if (val & BIT_CHG_DET_DONE) { + status = val & (BIT_CDP_INT | BIT_DCP_INT | BIT_SDP_INT); + break; + } + + msleep(200); + } while (--cnt > 0); + + switch (status) { + case BIT_CDP_INT: + type = CDP_TYPE; + break; + case BIT_DCP_INT: + type = DCP_TYPE; + break; + case BIT_SDP_INT: + type = SDP_TYPE; + break; + default: + type = UNKNOWN_TYPE; + } + + return type; +} + +static inline void sprd_hsphy_enable(struct sprd_hsphy *sprd_phy) +{ + u32 reg, msk; + + /* enable usb module */ + reg = msk = (MASK_AON_APB_OTG_UTMI_EB | MASK_AON_APB_ANA_EB); + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_APB_EB1, msk, reg); + reg = msk = MASK_AON_APB_CGM_OTG_REF_EN | + MASK_AON_APB_CGM_DPHY_REF_EN; + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_CGM_REG1, msk, reg); +} + +static inline void sprd_hsphy_power_down(struct sprd_hsphy *sprd_phy) +{ + u32 reg, msk; + + /* usb power down */ + reg = msk = (MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_PS_PD_L | + MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_PS_PD_S); + regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_BATTER_PLL, msk, reg); +} + +static inline void sprd_hsphy_reset_core(struct sprd_hsphy *sprd_phy) +{ + u32 reg, msk; + + /* Reset PHY */ + reg = msk = MASK_AON_APB_OTG_PHY_SOFT_RST | MASK_AON_APB_OTG_UTMI_SOFT_RST; + + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_APB_RST1, msk, reg); + /* USB PHY reset need to delay 20ms~30ms */ + usleep_range(20000, 30000); + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_APB_RST1, msk, 0); +} + +static int sprd_hostphy_set(struct usb_phy *u_phy, int on) +{ + struct sprd_hsphy *sprd_phy = container_of(u_phy, struct sprd_hsphy, phy); + u32 reg, msk; + int ret = 0; + + if (on) { + msk = MASK_AON_APB_USB2_PHY_IDDIG; + ret |= regmap_update_bits(sprd_phy->hsphy_glb, + REG_AON_APB_OTG_PHY_CTRL, msk, 0); + + msk = MASK_ANLG_PHY_G2_DBG_SEL_ANALOG_USB20_USB20_DMPULLDOWN | + MASK_ANLG_PHY_G2_DBG_SEL_ANALOG_USB20_USB20_DPPULLDOWN; + ret |= regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_REG_SEL_CFG_0, + msk, msk); + + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DMPULLDOWN | + MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DPPULLDOWN; + ret |= regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL2, + msk, msk); + + reg = 0x200; + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_RESERVED; + ret |= regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1, + msk, reg); + sprd_phy->is_host = true; + } else { + reg = msk = MASK_AON_APB_USB2_PHY_IDDIG; + ret |= regmap_update_bits(sprd_phy->hsphy_glb, + REG_AON_APB_OTG_PHY_CTRL, msk, reg); + + msk = MASK_ANLG_PHY_G2_DBG_SEL_ANALOG_USB20_USB20_DMPULLDOWN | + MASK_ANLG_PHY_G2_DBG_SEL_ANALOG_USB20_USB20_DPPULLDOWN; + ret |= regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_REG_SEL_CFG_0, + msk, msk); + + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DMPULLDOWN | + MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DPPULLDOWN; + ret |= regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL2, + msk, 0); + + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_RESERVED; + ret |= regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1, + msk, 0); + sprd_phy->is_host = false; + } + return ret; +} + +static int sprd_hsphy_init(struct usb_phy *u_phy) +{ + struct sprd_hsphy *sprd_phy = container_of(u_phy, struct sprd_hsphy, phy); + u32 reg, msk; + int ret; + + if (atomic_read(&sprd_phy->inited)) { + dev_dbg(u_phy->dev, "%s is already inited!\n", __func__); + return 0; + } + + /* Turn On VDD */ + regulator_set_voltage(sprd_phy->vdd, sprd_phy->vdd_vol, sprd_phy->vdd_vol); + if (!regulator_is_enabled(sprd_phy->vdd)) { + ret = regulator_enable(sprd_phy->vdd); + if (ret) + return ret; + } + + sprd_hsphy_enable(sprd_phy); + regmap_update_bits(sprd_phy->ana_g2, REG_ANLG_PHY_G2_ANALOG_USB20_USB20_ISO_SW, + MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_ISO_SW_EN, 0); + + /* usb phy power */ + msk = (MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_PS_PD_L | + MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_PS_PD_S); + regmap_update_bits(sprd_phy->ana_g2, REG_ANLG_PHY_G2_ANALOG_USB20_USB20_BATTER_PLL, + msk, 0); + + /* usb vbus valid */ + reg = msk = MASK_AON_APB_OTG_VBUS_VALID_PHYREG; + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_OTG_PHY_TEST, msk, reg); + + reg = msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_VBUSVLDEXT; + regmap_update_bits(sprd_phy->ana_g2, REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1, + msk, reg); + + /* for SPRD phy utmi_width sel */ + reg = msk = MASK_AON_APB_UTMI_WIDTH_SEL; + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_OTG_PHY_CTRL, msk, reg); + + reg = msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DATABUS16_8; + regmap_update_bits(sprd_phy->ana_g2, REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1, + msk, reg); + + reg = TUNEHSAMP_2_6MA; + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_TUNEHSAMP; + regmap_update_bits(sprd_phy->ana_g2, REG_ANLG_PHY_G2_ANALOG_USB20_USB20_TRIMMING, + msk, reg); + + reg = TFREGRES_TUNE_VALUE; + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_TFREGRES; + regmap_update_bits(sprd_phy->ana_g2, REG_ANLG_PHY_G2_ANALOG_USB20_USB20_TRIMMING, + msk, reg); + + if (!atomic_read(&sprd_phy->reset)) { + sprd_hsphy_reset_core(sprd_phy); + atomic_set(&sprd_phy->reset, 1); + } + + atomic_set(&sprd_phy->inited, 1); + + return 0; +} + +static void sprd_hsphy_shutdown(struct usb_phy *u_phy) +{ + struct sprd_hsphy *sprd_phy = container_of(u_phy, struct sprd_hsphy, phy); + u32 reg, msk; + + if (!atomic_read(&sprd_phy->inited)) { + dev_dbg(sprd_phy->dev, "%s is already shut down\n", __func__); + return; + } + + /* usb vbus */ + msk = MASK_AON_APB_OTG_VBUS_VALID_PHYREG; + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_OTG_PHY_TEST, msk, 0); + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_VBUSVLDEXT; + regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1, msk, 0); + + sprd_hsphy_power_down(sprd_phy); + regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_ISO_SW, + msk, reg); + + /* usb cgm ref */ + msk = MASK_AON_APB_CGM_OTG_REF_EN | + MASK_AON_APB_CGM_DPHY_REF_EN; + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_CGM_REG1, msk, 0); + + if (regulator_is_enabled(sprd_phy->vdd)) + regulator_disable(sprd_phy->vdd); + + atomic_set(&sprd_phy->inited, 0); + atomic_set(&sprd_phy->reset, 0); +} + +static ssize_t vdd_voltage_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sprd_hsphy *sprd_phy = dev_get_drvdata(dev); + + if (!sprd_phy) + return -EINVAL; + + return sprintf(buf, "%d\n", sprd_phy->vdd_vol); +} + +static ssize_t vdd_voltage_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct sprd_hsphy *sprd_phy = dev_get_drvdata(dev); + u32 vol; + + if (!sprd_phy) + return -EINVAL; + + if (kstrtouint(buf, 16, &vol) < 0) + return -EINVAL; + + if (vol < 1200000 || vol > 3750000) { + dev_err(dev, "Invalid voltage value %d\n", vol); + return -EINVAL; + } + sprd_phy->vdd_vol = vol; + + return size; +} +static DEVICE_ATTR_RW(vdd_voltage); + +static struct attribute *usb_hsphy_attrs[] = { + &dev_attr_vdd_voltage.attr, + NULL +}; +ATTRIBUTE_GROUPS(usb_hsphy); + +static int sprd_hsphy_vbus_notify(struct notifier_block *nb, + unsigned long event, void *data) +{ + struct usb_phy *u_phy = container_of(nb, struct usb_phy, vbus_nb); + struct sprd_hsphy *sprd_phy = container_of(u_phy, struct sprd_hsphy, phy); + u32 reg, msk; + + if (sprd_phy->is_host || u_phy->last_event == USB_EVENT_ID) { + dev_info(sprd_phy->dev, "USB PHY is host mode\n"); + return 0; + } + + if (event) { + /* usb vbus valid */ + reg = msk = MASK_AON_APB_OTG_VBUS_VALID_PHYREG; + regmap_update_bits(sprd_phy->hsphy_glb, + REG_AON_APB_OTG_PHY_TEST, msk, reg); + + reg = msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_VBUSVLDEXT; + regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1, msk, reg); + usb_phy_set_charger_state(u_phy, USB_CHARGER_PRESENT); + } else { + /* usb vbus invalid */ + msk = MASK_AON_APB_OTG_VBUS_VALID_PHYREG; + regmap_update_bits(sprd_phy->hsphy_glb, REG_AON_APB_OTG_PHY_TEST, + msk, 0); + msk = MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_VBUSVLDEXT; + regmap_update_bits(sprd_phy->ana_g2, + REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1, msk, 0); + usb_phy_set_charger_state(u_phy, USB_CHARGER_ABSENT); + } + + return 0; +} + +static enum usb_charger_type sprd_hsphy_charger_detect(struct usb_phy *u_phy) +{ + struct sprd_hsphy *sprd_phy = container_of(u_phy, struct sprd_hsphy, phy); + + return sc27xx_charger_detect(sprd_phy->pmic); +} + +static int sprd_hsphy_probe(struct platform_device *pdev) +{ + struct device_node *regmap_np; + struct platform_device *regmap_pdev; + struct sprd_hsphy *sprd_phy; + struct device *dev = &pdev->dev; + int ret; + struct usb_otg *otg; + + sprd_phy = devm_kzalloc(dev, sizeof(*sprd_phy), GFP_KERNEL); + if (!sprd_phy) + return -ENOMEM; + + regmap_np = of_find_compatible_node(NULL, NULL, "sprd,sc27xx-syscon"); + if (!regmap_np) { + dev_err(dev, "unable to get syscon node\n"); + return -ENODEV; + } + + regmap_pdev = of_find_device_by_node(regmap_np); + if (!regmap_pdev) { + dev_err(dev, "unable to get syscon platform device\n"); + ret = -ENODEV; + goto device_node_err; + } + + sprd_phy->pmic = dev_get_regmap(regmap_pdev->dev.parent, NULL); + if (!sprd_phy->pmic) { + dev_err(dev, "unable to get pmic regmap device\n"); + ret = -ENODEV; + goto platform_device_err; + } + + ret = of_property_read_u32(dev->of_node, "sprd,vdd-voltage", + &sprd_phy->vdd_vol); + if (ret < 0) { + dev_err(dev, "unable to read ssphy vdd voltage\n"); + goto platform_device_err; + } + + sprd_phy->vdd = devm_regulator_get(dev, "vdd"); + if (IS_ERR(sprd_phy->vdd)) { + dev_err(dev, "unable to get ssphy vdd supply\n"); + ret = PTR_ERR(sprd_phy->vdd); + goto platform_device_err; + } + + ret = regulator_set_voltage(sprd_phy->vdd, sprd_phy->vdd_vol, sprd_phy->vdd_vol); + if (ret < 0) { + dev_err(dev, "fail to set ssphy vdd voltage at %dmV\n", sprd_phy->vdd_vol); + goto platform_device_err; + } + + otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL); + if (!otg) { + ret = -ENOMEM; + goto platform_device_err; + } + + sprd_phy->ana_g2 = syscon_regmap_lookup_by_phandle(dev->of_node, + "sprd,syscon-anag2"); + if (IS_ERR(sprd_phy->ana_g2)) { + dev_err(&pdev->dev, "ap USB anag2 syscon failed!\n"); + ret = PTR_ERR(sprd_phy->ana_g2); + goto platform_device_err; + } + + sprd_phy->hsphy_glb = syscon_regmap_lookup_by_phandle(dev->of_node, + "sprd,syscon-enable"); + if (IS_ERR(sprd_phy->hsphy_glb)) { + dev_err(&pdev->dev, "ap USB aon apb syscon failed!\n"); + ret = PTR_ERR(sprd_phy->hsphy_glb); + goto platform_device_err; + } + + sprd_hsphy_enable(sprd_phy); + + sprd_hsphy_power_down(sprd_phy); + + sprd_phy->phy.dev = dev; + sprd_phy->phy.label = "sprd-hsphy"; + sprd_phy->phy.otg = otg; + sprd_phy->phy.init = sprd_hsphy_init; + sprd_phy->phy.shutdown = sprd_hsphy_shutdown; + sprd_phy->phy.set_vbus = sprd_hostphy_set; + sprd_phy->phy.type = USB_PHY_TYPE_USB2; + sprd_phy->phy.vbus_nb.notifier_call = sprd_hsphy_vbus_notify; + sprd_phy->phy.charger_detect = sprd_hsphy_charger_detect; + otg->usb_phy = &sprd_phy->phy; + + platform_set_drvdata(pdev, sprd_phy); + + ret = usb_add_phy_dev(&sprd_phy->phy); + if (ret) { + dev_err(dev, "fail to add phy\n"); + goto platform_device_err; + } + + ret = sysfs_create_groups(&dev->kobj, usb_hsphy_groups); + if (ret) + dev_warn(dev, "failed to create usb hsphy attributes\n"); + + if (extcon_get_state(sprd_phy->phy.edev, EXTCON_USB) > 0) + usb_phy_set_charger_state(&sprd_phy->phy, USB_CHARGER_PRESENT); + + dev_info(dev, "sprd usb phy probe ok !\n"); + +platform_device_err: +device_node_err: + of_node_put(regmap_np); + + return ret; +} + +static int sprd_hsphy_remove(struct platform_device *pdev) +{ + struct sprd_hsphy *sprd_phy = platform_get_drvdata(pdev); + + sysfs_remove_groups(&pdev->dev.kobj, usb_hsphy_groups); + usb_remove_phy(&sprd_phy->phy); + if (regulator_is_enabled(sprd_phy->vdd)) + regulator_disable(sprd_phy->vdd); + + return 0; +} + +static const struct of_device_id sprd_hsphy_match[] = { + { .compatible = "sprd,ums512-phy"}, + {}, +}; + +MODULE_DEVICE_TABLE(of, sprd_hsphy_match); + +static struct platform_driver sprd_hsphy_driver = { + .probe = sprd_hsphy_probe, + .remove = sprd_hsphy_remove, + .driver = { + .name = "sprd-hsphy", + .of_match_table = sprd_hsphy_match, + }, +}; + +static int __init sprd_hsphy_driver_init(void) +{ + return platform_driver_register(&sprd_hsphy_driver); +} + +static void __exit sprd_hsphy_driver_exit(void) +{ + platform_driver_unregister(&sprd_hsphy_driver); +} + +late_initcall(sprd_hsphy_driver_init); +module_exit(sprd_hsphy_driver_exit); + +MODULE_DESCRIPTION("UNISOC USB PHY driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/phy/phy-sprd-ums512.h b/drivers/usb/phy/phy-sprd-ums512.h new file mode 100644 index 000000000000..903da0573eae --- /dev/null +++ b/drivers/usb/phy/phy-sprd-ums512.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0+ OR MIT */ +/* + * Spreadtrum UMS512 SOC USB registers file + * + * Copyright C 2022, Spreadtrum Communications Inc. + */ + +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DATABUS16_8 0x10000000 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DMPULLDOWN 0x8 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_DPPULLDOWN 0x10 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_ISO_SW_EN 0x1 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_PS_PD_L 0x8 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_PS_PD_S 0x10 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_RESERVED 0xffff +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_TFREGRES 0x1f80000 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_TUNEHSAMP 0x6000000 +#define MASK_ANLG_PHY_G2_ANALOG_USB20_USB20_VBUSVLDEXT 0x10000 +#define MASK_ANLG_PHY_G2_DBG_SEL_ANALOG_USB20_USB20_DMPULLDOWN 0x2 +#define MASK_ANLG_PHY_G2_DBG_SEL_ANALOG_USB20_USB20_DPPULLDOWN 0x4 +#define MASK_AON_APB_ANA_EB 0x1000 +#define MASK_AON_APB_CGM_DPHY_REF_EN 0x400 +#define MASK_AON_APB_CGM_OTG_REF_EN 0x1000 +#define MASK_AON_APB_OTG_PHY_SOFT_RST 0x200 +#define MASK_AON_APB_OTG_UTMI_EB 0x100 +#define MASK_AON_APB_OTG_UTMI_SOFT_RST 0x100 +#define MASK_AON_APB_OTG_VBUS_VALID_PHYREG 0x1000000 +#define MASK_AON_APB_USB2_PHY_IDDIG 0x8 +#define MASK_AON_APB_UTMI_WIDTH_SEL 0x40000000 +#define REG_ANLG_PHY_G2_ANALOG_USB20_USB20_BATTER_PLL 0x005c +#define REG_ANLG_PHY_G2_ANALOG_USB20_USB20_ISO_SW 0x0070 +#define REG_ANLG_PHY_G2_ANALOG_USB20_USB20_TRIMMING 0x0064 +#define REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL1 0x0058 +#define REG_ANLG_PHY_G2_ANALOG_USB20_USB20_UTMI_CTL2 0x0060 +#define REG_ANLG_PHY_G2_ANALOG_USB20_REG_SEL_CFG_0 0x0074 +#define REG_AON_APB_APB_EB1 0x0004 +#define REG_AON_APB_APB_RST1 0x0010 +#define REG_AON_APB_CGM_REG1 0x0138 +#define REG_AON_APB_OTG_PHY_CTRL 0x0208 +#define REG_AON_APB_OTG_PHY_TEST 0x0204