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Message-ID: <0d165c7efbb71a65803abddc364e1c5252b8b939.camel@crapouillou.net>
Date: Fri, 19 May 2023 10:16:56 +0200
From: Paul Cercueil <paul@...pouillou.net>
To: Stanley Chang <stanley_chang@...ltek.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Alan Stern <stern@...land.harvard.edu>,
Ray Chi <raychi@...gle.com>,
Bagas Sanjaya <bagasdotme@...il.com>,
Eugeniu Rosca <erosca@...adit-jv.com>,
Michael Grzeschik <m.grzeschik@...gutronix.de>,
Matthias Kaehlcke <mka@...omium.org>,
Flavio Suligoi <f.suligoi@...m.it>,
Mathias Nyman <mathias.nyman@...ux.intel.com>,
Bhuvanesh Surachari <Bhuvanesh_Surachari@...tor.com>,
Arnd Bergmann <arnd@...db.de>,
Linus Walleij <linus.walleij@...aro.org>,
linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v1 2/3] usb: phy: Add driver for the Realtek SoC USB
2.0/3.0 PHY
Hi Stanley,
Le vendredi 19 mai 2023 à 12:58 +0800, Stanley Chang a écrit :
> Realtek DHC (digital home center) RTD SoCs support DWC3 XHCI USB
> 2.0/3.0
> controller. Added two drivers to drive the USB 2.0/3.0 PHY
> transceivers.
> For USB 3.0 transceivers, a driver phy-rtk-usb3 is provided.
> The driver phy-rtk-usb2 is used to support USB 2.0 transceivers.
>
> Signed-off-by: Stanley Chang <stanley_chang@...ltek.com>
> ---
> drivers/usb/phy/Kconfig | 14 +
> drivers/usb/phy/Makefile | 2 +
> drivers/usb/phy/phy-rtk-usb.h | 88 ++
> drivers/usb/phy/phy-rtk-usb2.c | 2196
> ++++++++++++++++++++++++++++++++
> drivers/usb/phy/phy-rtk-usb3.c | 1165 +++++++++++++++++
> 5 files changed, 3465 insertions(+)
> create mode 100644 drivers/usb/phy/phy-rtk-usb.h
> create mode 100644 drivers/usb/phy/phy-rtk-usb2.c
> create mode 100644 drivers/usb/phy/phy-rtk-usb3.c
I'm pretty sure that drivers/usb/phy/ is deprecated now...
New drivers should be written for the generic PHY subsystem in
drivers/phy/.
Cheers,
-Paul
>
> diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
> index 5f629d7cad64..b2e5feb9f37a 100644
> --- a/drivers/usb/phy/Kconfig
> +++ b/drivers/usb/phy/Kconfig
> @@ -172,4 +172,18 @@ config USB_ULPI_VIEWPORT
> Provides read/write operations to the ULPI phy register set
> for
> controllers with a viewport register (e.g. Chipidea/ARC
> controllers).
>
> +config RTK_USB2PHY
> + tristate "Realtek RTD USB2 PHY Transceiver Driver"
> + select USB_PHY
> + help
> + Enable this to support Realtek SoC USB2 phy transceiver.
> + Support the DHC (digital home center) RTD series SoCs.
> +
> +config RTK_USB3PHY
> + tristate "Realtek RTD USB3 PHY Transceiver Driver"
> + select USB_PHY
> + help
> + Enable this to support Realtek SoC USB3 phy transceiver.
> + Support the DHC (digital home center) RTD series SoCs.
> +
> endmenu
> diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
> index e5d619b4d8f6..1e64255fcd1f 100644
> --- a/drivers/usb/phy/Makefile
> +++ b/drivers/usb/phy/Makefile
> @@ -23,3 +23,5 @@ 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_KEYSTONE_USB_PHY) += phy-keystone.o
> +obj-$(CONFIG_RTK_USB2PHY) += phy-rtk-usb2.o
> +obj-$(CONFIG_RTK_USB3PHY) += phy-rtk-usb3.o
> diff --git a/drivers/usb/phy/phy-rtk-usb.h b/drivers/usb/phy/phy-rtk-
> usb.h
> new file mode 100644
> index 000000000000..5652866d0b02
> --- /dev/null
> +++ b/drivers/usb/phy/phy-rtk-usb.h
> @@ -0,0 +1,88 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * phy-rtk-usb.h Realtek usb phy header file
> + *
> + * copyright (c) 2023 realtek semiconductor corporation
> + *
> + */
> +
> +#ifndef __PHY_RTK_USB_H__
> +#define __PHY_RTK_USB_H__
> +
> +struct rtk_usb_phy {
> + struct usb_phy phy;
> + struct device *dev;
> + struct regmap *usb_regs;
> + struct regmap *mac_regs;
> + struct regmap *usb_ctrl_regs;
> +
> + int port_index;
> + int phyN;
> + void *reg_addr;
> + void *phy_data;
> +
> +#ifdef CONFIG_DEBUG_FS
> + struct dentry *debug_dir;
> +#endif
> +};
> +
> +#define phy_read(addr) __raw_readl(addr)
> +#define phy_write(addr, val) do { \
> + /* Do smp_wmb */ \
> + smp_wmb(); __raw_writel(val, addr); \
> +} while (0)
> +#define PHY_IO_TIMEOUT_MSEC (50)
> +
> +static inline int utmi_wait_register(void __iomem *reg, u32 mask,
> u32 result)
> +{
> + unsigned long timeout = jiffies +
> msecs_to_jiffies(PHY_IO_TIMEOUT_MSEC);
> +
> + while (time_before(jiffies, timeout)) {
> + /* Do smp_rmb */
> + smp_rmb();
> + if ((phy_read(reg) & mask) == result)
> + return 0;
> + udelay(100);
> + }
> + pr_err("\033[0;32;31m can't program USB phy \033[m\n");
> +
> + return -ETIMEDOUT;
> +}
> +
> +#define DEFAULT_CHIP_REVISION 0xA00
> +#define MAX_CHIP_REVISION 0xC00
> +
> +static inline int __get_chip_revision(void)
> +{
> + int chip_revision = 0xFFF;
> + char revision[] = "FFF";
> + struct soc_device_attribute soc_att[] = {{.revision =
> revision}, {}};
> + struct soc_device_attribute *soc_att_match = NULL;
> +
> + while (soc_att_match == NULL) {
> + chip_revision--;
> +
> + if (chip_revision <= DEFAULT_CHIP_REVISION)
> + break;
> + if (chip_revision > MAX_CHIP_REVISION)
> + chip_revision = MAX_CHIP_REVISION;
> + else if ((chip_revision & 0xFF) > 0xF)
> + chip_revision = (chip_revision & 0xF00) +
> 0xF;
> +
> + snprintf(revision, 4, "%X", chip_revision);
> +
> + soc_att_match = (struct soc_device_attribute *)
> + soc_device_match(soc_att);
> + }
> +
> + if (soc_att_match) {
> + pr_debug("%s get chip_revision %x\n", __func__,
> chip_revision);
> + return chip_revision;
> + }
> +
> + pr_debug("%s: Use default chip_revision %x\n", __func__,
> + DEFAULT_CHIP_REVISION);
> + return DEFAULT_CHIP_REVISION;
> +}
> +
> +#endif /* __PHY_RTK_USB_H__ */
> diff --git a/drivers/usb/phy/phy-rtk-usb2.c b/drivers/usb/phy/phy-
> rtk-usb2.c
> new file mode 100644
> index 000000000000..ce9305ccb6fb
> --- /dev/null
> +++ b/drivers/usb/phy/phy-rtk-usb2.c
> @@ -0,0 +1,2196 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * phy-rtk-usb2.c RTK usb2.0 PHY driver
> + *
> + * Copyright (C) 2023 Realtek Semiconductor Corporation
> + *
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/of_address.h>
> +#include <linux/uaccess.h>
> +#include <linux/debugfs.h>
> +#include <linux/nvmem-consumer.h>
> +#include <linux/regmap.h>
> +#include <linux/sys_soc.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/usb.h>
> +#include <linux/usb/phy.h>
> +#include <linux/usb/hcd.h>
> +
> +#include "phy-rtk-usb.h"
> +
> +#define RTK_USB2PHY_NAME "rtk-usb2phy"
> +
> +/* GUSB2PHYACCn register */
> +#define PHY_NEW_REG_REQ BIT(25)
> +#define PHY_VSTS_BUSY BIT(23)
> +#define PHY_VCTRL_SHIFT 8
> +#define PHY_REG_DATA_MASK 0xff
> +
> +#define GET_LOW_NIBBLE(addr) (addr & 0x0f)
> +#define GET_HIGH_NIBBLE(addr) ((addr & 0xf0)>>4)
> +
> +#define EFUS_USB_DC_CAL_RATE 2
> +#define EFUS_USB_DC_CAL_MAX 7
> +
> +#define EFUS_USB_DC_DIS_RATE 1
> +#define EFUS_USB_DC_DIS_MAX 7
> +
> +#define MAX_PHY_DATA_SIZE 20
> +#define OFFEST_PHY_READ 0x20
> +
> +#define SET_PAGE_OFFSET 0xf4
> +#define SET_PAGE_0 0x9b
> +#define SET_PAGE_1 0xbb
> +#define SET_PAGE_2 0xdb
> +
> +#define PAGE_START 0xe0
> +#define PAGE0_0xE4 0xe4
> +#define PAGE0_0xE7 0xe7
> +#define PAGE1_0xE0 0xe0
> +#define PAGE1_0xE2 0xe2
> +
> +/* mapping 0xE0 to 0 ... 0xE7 to 7, 0xF0 to 8 ,,, 0xF7 to 15 */
> +#define PAGE_ADDR_MAP_ARRAY_INDEX(addr) \
> + (((addr - PAGE_START)&0x7) + \
> + (((addr - PAGE_START)&0x10)>>1))
> +#define ARRAY_INDEX_MAP_PAGE_ADDR(index) \
> + (((index + PAGE_START)&0x7) + \
> + (((index&0x8)<<1) + PAGE_START))
> +
> +struct reg_addr {
> + void __iomem *reg_wrap_vstatus;
> + void __iomem *reg_gusb2phyacc0;
> + int vstatus_index;
> +};
> +
> +struct phy_parameter {
> + u8 addr;
> + u8 data;
> +};
> +
> +struct phy_data {
> + int page0_size;
> + struct phy_parameter *page0;
> + int page1_size;
> + struct phy_parameter *page1;
> + int page2_size;
> + struct phy_parameter *page2;
> +
> + bool check_efuse;
> + int check_efuse_version;
> +#define CHECK_EFUSE_V1 1
> +#define CHECK_EFUSE_V2 2
> + int8_t efuse_usb_dc_cal;
> + int efuse_usb_dc_cal_rate;
> + int usb_dc_cal_mask;
> + int8_t efuse_usb_dc_dis;
> + int efuse_usb_dc_dis_rate;
> + int usb_dc_dis_mask;
> + bool usb_dc_dis_at_page0;
> + bool do_toggle;
> + bool do_toggle_driving;
> + int disconnect_driving_updated;
> + bool use_default_parameter;
> + bool is_double_sensitivity_mode;
> + bool ldo_force_enable;
> + bool ldo_enable;
> + s32 ldo_page0_e4_compensate;
> + s32 page0_e4_compensate;
> +};
> +
> +static char rtk_usb_phy_read(struct reg_addr *regAddr, char addr)
> +{
> + void __iomem *reg_gusb2phyacc0 = regAddr->reg_gusb2phyacc0;
> + unsigned int regVal;
> + int ret = 0;
> +
> + addr -= OFFEST_PHY_READ;
> +
> + /* polling until VBusy == 0 */
> + ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
> + if (ret)
> + return (char)ret;
> +
> + /* VCtrl = low nibble of addr, and set PHY_NEW_REG_REQ */
> + regVal = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) <<
> PHY_VCTRL_SHIFT);
> + phy_write(reg_gusb2phyacc0, regVal);
> + ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
> + if (ret)
> + return (char)ret;
> +
> + /* VCtrl = high nibble of addr, and set PHY_NEW_REG_REQ */
> + regVal = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) <<
> PHY_VCTRL_SHIFT);
> + phy_write(reg_gusb2phyacc0, regVal);
> + ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
> + if (ret)
> + return (char)ret;
> +
> + /* rmb for reg read */
> + smp_rmb();
> + regVal = phy_read(reg_gusb2phyacc0);
> +
> + return (char) (regVal & PHY_REG_DATA_MASK);
> +}
> +
> +static int rtk_usb_phy_write(struct reg_addr *regAddr, char addr,
> char data)
> +{
> + unsigned int regVal;
> + void __iomem *reg_wrap_vstatus = regAddr->reg_wrap_vstatus;
> + void __iomem *reg_gusb2phyacc0 = regAddr->reg_gusb2phyacc0;
> + int shift_bits = regAddr->vstatus_index * 8;
> + int ret = 0;
> +
> + /* write data to VStatusOut2 (data output to phy) */
> + phy_write(reg_wrap_vstatus, (u32)data<<shift_bits);
> +
> + ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
> + if (ret)
> + return ret;
> +
> + /* VCtrl = low nibble of addr, set PHY_NEW_REG_REQ */
> + regVal = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) <<
> PHY_VCTRL_SHIFT);
> +
> + phy_write(reg_gusb2phyacc0, regVal);
> + ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
> + if (ret)
> + return ret;
> +
> + /* VCtrl = high nibble of addr, set PHY_NEW_REG_REQ */
> + regVal = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) <<
> PHY_VCTRL_SHIFT);
> +
> + phy_write(reg_gusb2phyacc0, regVal);
> + ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
> + if (ret)
> + return ret;
> +
> + return 0;
> +}
> +
> +static int rtk_usb_phy_set_page(struct reg_addr *regAddr, int page)
> +{
> + switch (page) {
> + case 0:
> + return rtk_usb_phy_write(regAddr, SET_PAGE_OFFSET,
> SET_PAGE_0);
> + case 1:
> + return rtk_usb_phy_write(regAddr, SET_PAGE_OFFSET,
> SET_PAGE_1);
> + case 2:
> + return rtk_usb_phy_write(regAddr, SET_PAGE_OFFSET,
> SET_PAGE_2);
> + default:
> + pr_err("%s error page=%d\n", __func__, page);
> + }
> +
> + return -1;
> +}
> +
> +#define USB_CTRL 0x0 /* usb ctrl at 0x98007FB0 */
> +#define ISO_USB_U2PHY_REG_LDO_PW (BIT(20) | BIT(21) | BIT(22) |
> BIT(23))
> +
> +static int control_phy_power(struct rtk_usb_phy *rtk_phy,
> + struct phy_data *phy_data, struct reg_addr *regAddr)
> +{
> + int use_ldo = 0;
> + unsigned int val;
> +
> + if (!rtk_phy->usb_ctrl_regs) {
> + dev_info(rtk_phy->dev, "%s No usb_ctrl_regs can't set
> USB_CTRL\n",
> + __func__);
> + return use_ldo;
> + }
> +
> + if (regmap_read(rtk_phy->usb_ctrl_regs, USB_CTRL, &val)) {
> + dev_err(rtk_phy->dev, "%s Get USB_CTRL fail\n",
> __func__);
> + return use_ldo;
> + }
> +
> + if ((val & ISO_USB_U2PHY_REG_LDO_PW) ==
> ISO_USB_U2PHY_REG_LDO_PW) {
> + dev_info(rtk_phy->dev, "%s phy use ldo power!
> (USB_CTRL val=0x%x)\n",
> + __func__, val);
> + use_ldo = 1;
> + goto out;
> + }
> +
> + if (phy_data->ldo_force_enable) {
> + regmap_update_bits(rtk_phy->usb_ctrl_regs, USB_CTRL,
> + (unsigned int)ISO_USB_U2PHY_REG_LDO_PW,
> + (unsigned int)ISO_USB_U2PHY_REG_LDO_PW);
> + use_ldo = 1;
> +
> + dev_info(rtk_phy->dev, "%s phy %s then turn on ldo!
> USB_CTRL val=0x%x\n",
> + __func__,
> + phy_data->ldo_force_enable ?
> + "ldo_force_enable":"no power",
> + val);
> + }
> +
> +out:
> + return use_ldo;
> +}
> +
> +static u8 __updated_page0_0xe4_parameter(struct phy_data *phy_data,
> u8 data)
> +{
> + u8 val;
> + s32 __val;
> + s32 page0_e4_compensate = 0;
> + s32 usb_dc_cal_mask = phy_data->usb_dc_cal_mask;
> +
> + if (phy_data->check_efuse_version == CHECK_EFUSE_V1) {
> + if (phy_data->ldo_enable)
> + page0_e4_compensate = phy_data-
> >ldo_page0_e4_compensate;
> +
> + __val = (s32)(data & usb_dc_cal_mask) +
> page0_e4_compensate
> + + phy_data->efuse_usb_dc_cal;
> + } else { /* for CHECK_EFUSE_V2 or no efuse */
> + page0_e4_compensate = phy_data->page0_e4_compensate;
> +
> + if (phy_data->efuse_usb_dc_cal)
> + __val = (s32)((phy_data->efuse_usb_dc_cal &
> usb_dc_cal_mask)
> + + page0_e4_compensate);
> + else
> + __val = (s32)(data & usb_dc_cal_mask);
> + }
> +
> + if (__val > usb_dc_cal_mask)
> + __val = usb_dc_cal_mask;
> + else if (__val < 0)
> + __val = 0;
> +
> + val = (data & (~usb_dc_cal_mask)) | (__val &
> usb_dc_cal_mask);
> +
> + return val;
> +}
> +
> +static u8 __updated_dc_disconnect_level_page0_0xe4(struct phy_data
> *phy_data,
> + u8 data)
> +{
> + u8 val;
> + s32 __val;
> + s32 usb_dc_dis_mask = phy_data->usb_dc_dis_mask;
> + int offset = 4;
> +
> + __val = (s32)((data >> offset) & usb_dc_dis_mask)
> + + phy_data->efuse_usb_dc_dis;
> +
> + if (__val > usb_dc_dis_mask)
> + __val = usb_dc_dis_mask;
> + else if (__val < 0)
> + __val = 0;
> +
> + val = (data & (~(usb_dc_dis_mask << offset))) |
> + (__val & usb_dc_dis_mask) << offset;
> +
> + return val;
> +}
> +
> +/* updated disconnect level at page0 0xe4 */
> +static void update_dc_disconnect_level_at_page0(struct rtk_usb_phy
> *rtk_phy,
> + struct reg_addr *regAddr,
> + struct phy_data *phy_data, bool isUpdate)
> +{
> + struct phy_parameter *phy_page_setting;
> + int i;
> +
> + /* Set page 0 */
> + phy_page_setting = phy_data->page0;
> + rtk_usb_phy_set_page(regAddr, 0);
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(PAGE0_0xE4);
> +
> + if (i < phy_data->page0_size) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> + u8 __data;
> + int offset = 4;
> + s32 usb_dc_dis_mask = phy_data->usb_dc_dis_mask;
> +
> + if (!addr) {
> + addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + data = rtk_usb_phy_read(regAddr, addr);
> +
> + (phy_page_setting + i)->addr = addr;
> + (phy_page_setting + i)->data = data;
> + dev_dbg(rtk_phy->dev,
> + "Get default addr %x value %x\n",
> + (phy_page_setting + i)->addr,
> + (phy_page_setting + i)->data);
> + }
> + __data = rtk_usb_phy_read(regAddr, addr);
> +
> + /* keep default dc dis and real dc cal */
> + data = (data & ((usb_dc_dis_mask << offset))) |
> + (__data & (~(usb_dc_dis_mask <<
> offset)));
> +
> + if (isUpdate)
> + data =
> __updated_dc_disconnect_level_page0_0xe4(phy_data, data);
> +
> + if (rtk_usb_phy_write(regAddr, addr, data)) {
> + dev_err(rtk_phy->dev,
> + "[%s:%d] Error page1 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__,
> + addr, data);
> + return;
> + }
> +
> + dev_info(rtk_phy->dev,
> + "%s to set Page0 0xE4=%x for dc
> disconnect level (%s)\n",
> + __func__,
> + rtk_usb_phy_read(regAddr, addr),
> + isUpdate?"Update":"restore");
> + } else {
> + dev_err(rtk_phy->dev,
> + "ERROR: %s %d index=%d addr Not
> PAGE0_0xE4\n",
> + __func__, __LINE__, i);
> + }
> +}
> +
> +static u8 __updated_dc_disconnect_level_page1_0xe2(struct phy_data
> *phy_data,
> + u8 data)
> +{
> + u8 val;
> + s32 __val;
> + s32 usb_dc_dis_mask = phy_data->usb_dc_dis_mask;
> +
> + if (phy_data->check_efuse_version == CHECK_EFUSE_V1) {
> + __val = (s32)(data & usb_dc_dis_mask)
> + + phy_data->efuse_usb_dc_dis;
> + } else { /* for CHECK_EFUSE_V2 or no efuse */
> + if (phy_data->efuse_usb_dc_dis)
> + __val = (s32)(phy_data->efuse_usb_dc_dis &
> usb_dc_dis_mask);
> + else
> + __val = (s32)(data & usb_dc_dis_mask);
> + }
> +
> + if (__val > usb_dc_dis_mask)
> + __val = usb_dc_dis_mask;
> + else if (__val < 0)
> + __val = 0;
> +
> + val = (data & (~usb_dc_dis_mask)) | (__val &
> usb_dc_dis_mask);
> +
> + return val;
> +}
> +
> +/* updated disconnect level at page1 0xe2 */
> +static void update_dc_disconnect_level_at_page1(struct rtk_usb_phy
> *rtk_phy,
> + struct reg_addr *regAddr,
> + struct phy_data *phy_data, bool isUpdate)
> +{
> + struct phy_parameter *phy_page_setting;
> + int i;
> +
> + /* Set page 1 */
> + phy_page_setting = phy_data->page1;
> + rtk_usb_phy_set_page(regAddr, 1);
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(PAGE1_0xE2);
> +
> + if (i < phy_data->page1_size) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> + u8 __data;
> + s32 usb_dc_dis_mask = phy_data->usb_dc_dis_mask;
> +
> + if (!addr) {
> + addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + data = rtk_usb_phy_read(regAddr, addr);
> +
> + (phy_page_setting + i)->addr = addr;
> + (phy_page_setting + i)->data = data;
> + dev_dbg(rtk_phy->dev,
> + "Get default addr %x value %x\n",
> + (phy_page_setting + i)->addr,
> + (phy_page_setting + i)->data);
> + }
> + __data = rtk_usb_phy_read(regAddr, addr);
> +
> + data = (data & usb_dc_dis_mask) | (__data &
> ~(usb_dc_dis_mask));
> +
> + if (isUpdate)
> + data =
> __updated_dc_disconnect_level_page1_0xe2(phy_data, data);
> +
> + if (rtk_usb_phy_write(regAddr, addr, data)) {
> + dev_err(rtk_phy->dev,
> + "[%s:%d] Error page1 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__,
> + addr, data);
> + return;
> + }
> +
> + dev_info(rtk_phy->dev,
> + "%s to set Page1 0xE2=%x for dc
> disconnect level (%s)\n",
> + __func__,
> + rtk_usb_phy_read(regAddr, addr),
> + isUpdate?"Update":"restore");
> + } else {
> + dev_err(rtk_phy->dev,
> + "ERROR: %s %d index=%d addr Not
> PAGE1_0xE2\n",
> + __func__, __LINE__, i);
> + }
> +}
> +
> +static void update_dc_disconnect_level(struct rtk_usb_phy *rtk_phy,
> + struct reg_addr *regAddr,
> + struct phy_data *phy_data, bool isUpdate)
> +{
> + if (phy_data->usb_dc_dis_at_page0)
> + update_dc_disconnect_level_at_page0(
> + rtk_phy, regAddr, phy_data, isUpdate);
> + else
> + update_dc_disconnect_level_at_page1(
> + rtk_phy, regAddr, phy_data, isUpdate);
> +}
> +
> +static void do_rtk_usb2_phy_toggle(struct rtk_usb_phy *rtk_phy,
> + int index, bool isConnect);
> +
> +static int do_rtk_usb_phy_init(struct rtk_usb_phy *rtk_phy, int
> index)
> +{
> + struct reg_addr *regAddr;
> + struct phy_data *phy_data;
> + struct phy_parameter *phy_page_setting;
> + int i;
> +
> + if (!rtk_phy) {
> + pr_err("%s, rtk_phy is NULL\n", __func__);
> + return -EINVAL;
> + }
> +
> + dev_dbg(rtk_phy->dev, "%s: init phy#%d\n", __func__, index);
> +
> + regAddr = &((struct reg_addr *)rtk_phy->reg_addr)[index];
> + phy_data = &((struct phy_data *)rtk_phy->phy_data)[index];
> +
> + if (!phy_data) {
> + pr_err("%s, phy_data is NULL\n", __func__);
> + return -EINVAL;
> + }
> +
> + if (control_phy_power(rtk_phy, phy_data, regAddr)) {
> + phy_data->ldo_enable = true;
> + dev_info(rtk_phy->dev, "%s USB phy use ldo power
> compensate phy parameter (%d)\n",
> + __func__, phy_data->ldo_page0_e4_compensate);
> + }
> +
> + if (phy_data->use_default_parameter) {
> + dev_info(rtk_phy->dev, "%s phy#%d use default
> parameter\n",
> + __func__, index);
> + goto do_toggle;
> + }
> +
> + /* Set page 0 */
> + phy_page_setting = phy_data->page0;
> + rtk_usb_phy_set_page(regAddr, 0);
> +
> + for (i = 0; i < phy_data->page0_size; i++) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr)
> + continue;
> +
> + if (addr == PAGE0_0xE4)
> + data =
> __updated_page0_0xe4_parameter(phy_data, data);
> +
> + if (rtk_usb_phy_write(regAddr, addr, data)) {
> + dev_err(rtk_phy->dev,
> + "[%s:%d] Error page0 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__, addr, data);
> + return -1;
> + }
> + dev_dbg(rtk_phy->dev, "[%s:%d] Good page0 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__, addr,
> + rtk_usb_phy_read(regAddr, addr));
> + }
> +
> + /* Set page 1 */
> + phy_page_setting = phy_data->page1;
> + rtk_usb_phy_set_page(regAddr, 1);
> +
> + for (i = 0; i < phy_data->page1_size; i++) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr)
> + continue;
> +
> + if (rtk_usb_phy_write(regAddr, addr, data)) {
> + dev_err(rtk_phy->dev,
> + "[%s:%d] Error page1 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__,
> + addr, data);
> + return -1;
> + }
> + dev_dbg(rtk_phy->dev, "[%s:%d] Good page1 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__, addr,
> + rtk_usb_phy_read(regAddr, addr));
> + }
> +
> + if (phy_data->page2_size == 0)
> + goto do_toggle;
> +
> + /* Set page 2 */
> + phy_page_setting = phy_data->page2;
> + rtk_usb_phy_set_page(regAddr, 2);
> +
> + for (i = 0; i < phy_data->page2_size; i++) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr)
> + continue;
> +
> + if (rtk_usb_phy_write(regAddr, addr, data)) {
> + dev_err(rtk_phy->dev,
> + "[%s:%d] Error page2 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__, addr, data);
> + return -1;
> + }
> + dev_dbg(rtk_phy->dev, "[%s:%d] Good page2 addr=0x%x
> value=0x%x\n",
> + __func__, __LINE__,
> + (phy_page_setting + i)->addr,
> + rtk_usb_phy_read(regAddr,
> + (phy_page_setting + i)->addr));
> + }
> +
> +do_toggle:
> + do_rtk_usb2_phy_toggle(rtk_phy, index, false);
> +
> + return 0;
> +}
> +
> +static int rtk_usb_phy_init(struct usb_phy *phy)
> +{
> + struct rtk_usb_phy *rtk_phy = container_of(phy, struct
> rtk_usb_phy, phy);
> + unsigned long phy_init_time = jiffies;
> + int i, ret = 0;
> +
> + dev_dbg(phy->dev, "Init RTK USB 2.0 PHY\n");
> + for (i = 0; i < rtk_phy->phyN; i++)
> + ret = do_rtk_usb_phy_init(rtk_phy, i);
> +
> + dev_info(phy->dev, "Initialized RTK USB 2.0 PHY (take
> %dms)\n",
> + jiffies_to_msecs(jiffies - phy_init_time));
> + return ret;
> +}
> +
> +static void rtk_usb_phy_shutdown(struct usb_phy *phy)
> +{
> + dev_info(phy->dev, "Shutdown RTK USB 2.0 PHY\n");
> +}
> +
> +static void do_rtk_usb2_phy_toggle(struct rtk_usb_phy *rtk_phy,
> + int index, bool isConnect)
> +{
> + struct reg_addr *regAddr;
> + struct phy_data *phy_data;
> + struct phy_parameter *phy_page_setting;
> + int i;
> +
> + if (!rtk_phy) {
> + pr_err("%s phy_data is NULL\n", __func__);
> + return;
> + }
> +
> + regAddr = &((struct reg_addr *)rtk_phy->reg_addr)[index];
> + phy_data = &((struct phy_data *)rtk_phy->phy_data)[index];
> +
> + if (!phy_data) {
> + dev_err(rtk_phy->dev, "%s phy_data is NULL\n",
> __func__);
> + return;
> + }
> +
> + if (!phy_data->do_toggle)
> + goto out;
> +
> + if (phy_data->is_double_sensitivity_mode)
> + goto do_toggle_driving;
> +
> + /* Set page 0 */
> + phy_page_setting = phy_data->page0;
> + rtk_usb_phy_set_page(regAddr, 0);
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(PAGE0_0xE7);
> +
> + if (i < phy_data->page0_size) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr) {
> + addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + data = rtk_usb_phy_read(regAddr, addr);
> +
> + (phy_page_setting + i)->addr = addr;
> + (phy_page_setting + i)->data = data;
> + dev_dbg(rtk_phy->dev,
> + "Get default addr %x value %x\n",
> + (phy_page_setting + i)->addr,
> + (phy_page_setting + i)->data);
> + }
> +
> + if (isConnect) {
> + rtk_usb_phy_write(regAddr, addr, data &
> + (~(BIT(4) | BIT(5) | BIT(6))));
> + } else {
> + rtk_usb_phy_write(regAddr, addr, data |
> + (BIT(4) | BIT(5) | BIT(6)));
> + }
> + dev_info(rtk_phy->dev,
> + "%s %sconnect to set Page0 0xE7=%x\n",
> + __func__,
> + isConnect?"":"dis",
> + rtk_usb_phy_read(regAddr, addr));
> + } else {
> + dev_err(rtk_phy->dev,
> + "ERROR: %s %d index=%d addr Not
> PAGE0_0xE7\n",
> + __func__, __LINE__, i);
> + }
> +
> +do_toggle_driving:
> +
> + if (!phy_data->do_toggle_driving)
> + goto do_toggle;
> +
> + /* Page 0 addr 0xE4 driving capability */
> +
> + /* Set page 0 */
> + phy_page_setting = phy_data->page0;
> + rtk_usb_phy_set_page(regAddr, 0);
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(PAGE0_0xE4);
> +
> + if (i < phy_data->page0_size) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr) {
> + addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + data = rtk_usb_phy_read(regAddr, addr);
> +
> + (phy_page_setting + i)->addr = addr;
> + (phy_page_setting + i)->data = data;
> + dev_dbg(rtk_phy->dev,
> + "Get default addr %x value %x\n",
> + (phy_page_setting + i)->addr,
> + (phy_page_setting + i)->data);
> + }
> +
> + if (addr == PAGE0_0xE4)
> + data =
> __updated_page0_0xe4_parameter(phy_data, data);
> +
> + if (isConnect) {
> + rtk_usb_phy_write(regAddr, addr, data);
> + } else {
> + u8 val;
> + s32 __val;
> + s32 driving_updated =
> + phy_data-
> >disconnect_driving_updated;
> + s32 usb_dc_cal_mask = phy_data-
> >usb_dc_cal_mask;
> +
> + __val = (s32)(data & usb_dc_cal_mask) +
> driving_updated;
> +
> + if (__val > usb_dc_cal_mask)
> + __val = usb_dc_cal_mask;
> + else if (__val < 0)
> + __val = 0;
> +
> + val = (data & (~usb_dc_cal_mask)) | (__val &
> usb_dc_cal_mask);
> +
> + rtk_usb_phy_write(regAddr, addr, val);
> + }
> + dev_info(rtk_phy->dev,
> + "%s %sconnect to set Page0 0xE4=%x for
> driving\n",
> + __func__,
> + isConnect?"":"dis",
> + rtk_usb_phy_read(regAddr, addr));
> + } else {
> + dev_err(rtk_phy->dev,
> + "ERROR: %s %d index=%d addr Not
> PAGE0_0xE4\n",
> + __func__, __LINE__, i);
> + }
> +
> +do_toggle:
> + /* restore dc disconnect level before toggle */
> + update_dc_disconnect_level(rtk_phy, regAddr, phy_data,
> false);
> +
> + /* Set page 1 */
> + phy_page_setting = phy_data->page1;
> + rtk_usb_phy_set_page(regAddr, 1);
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(PAGE1_0xE0);
> +
> + if (i < phy_data->page1_size) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr) {
> + addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + data = rtk_usb_phy_read(regAddr, addr);
> +
> + (phy_page_setting + i)->addr = addr;
> + (phy_page_setting + i)->data = data;
> + dev_dbg(rtk_phy->dev,
> + "Get default addr %x value %x\n",
> + (phy_page_setting + i)->addr,
> + (phy_page_setting + i)->data);
> + }
> +
> + dev_info(rtk_phy->dev,
> + "%s ########## to toggle PAGE1_0xE0
> BIT(2)\n",
> + __func__);
> + rtk_usb_phy_write(regAddr, addr, data & (~BIT(2)));
> + mdelay(1);
> + rtk_usb_phy_write(regAddr, addr, data | (BIT(2)));
> + } else {
> + dev_err(rtk_phy->dev,
> + "ERROR: %s %d index=%d addr Not
> PAGE1_0xE0\n",
> + __func__, __LINE__, i);
> + }
> +
> + /* update dc disconnect level after toggle */
> + update_dc_disconnect_level(rtk_phy, regAddr, phy_data, true);
> +
> +out:
> + return;
> +}
> +
> +static void rtk_usb2_phy_toggle(struct usb_phy *usb2_phy, bool
> isConnect, int port)
> +{
> + int index = port;
> + struct rtk_usb_phy *rtk_phy = NULL;
> +
> + if (usb2_phy != NULL && usb2_phy->dev != NULL)
> + rtk_phy = dev_get_drvdata(usb2_phy->dev);
> +
> + if (rtk_phy == NULL) {
> + pr_err("%s %d ERROR! NO this device\n", __func__,
> __LINE__);
> + return;
> + }
> + if (index > rtk_phy->phyN) {
> + pr_err("%s %d ERROR! port=%d > phyN=%d\n",
> + __func__, __LINE__, index, rtk_phy-
> >phyN);
> + return;
> + }
> +
> + do_rtk_usb2_phy_toggle(rtk_phy, index, isConnect);
> +}
> +
> +static int rtk_usb_phy_notify_port_status(struct usb_phy *x, int
> port,
> + u16 portstatus, u16 portchange)
> +{
> + bool isConnect = false;
> +
> + pr_debug("%s port=%d portstatus=0x%x portchange=0x%x\n",
> + __func__, port, (int)portstatus,
> (int)portchange);
> + if (portstatus & USB_PORT_STAT_CONNECTION)
> + isConnect = true;
> +
> + if (portchange & USB_PORT_STAT_C_CONNECTION)
> + rtk_usb2_phy_toggle(x, isConnect, port);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_DEBUG_FS
> +static struct dentry *create_phy_debug_root(void)
> +{
> + struct dentry *phy_debug_root;
> +
> + phy_debug_root = debugfs_lookup("phy", usb_debug_root);
> + if (!phy_debug_root) {
> + phy_debug_root = debugfs_create_dir("phy",
> usb_debug_root);
> + if (!phy_debug_root)
> + pr_err("%s Error phy_debug_root is NULL\n",
> __func__);
> + else
> + pr_debug("%s Create phy_debug_root folder\n",
> __func__);
> + }
> +
> + return phy_debug_root;
> +}
> +
> +static int rtk_usb2_parameter_show(struct seq_file *s, void *unused)
> +{
> + struct rtk_usb_phy *rtk_phy = s->private;
> + int i, index;
> +
> + for (index = 0; index < rtk_phy->phyN; index++) {
> + struct reg_addr *regAddr =
> + &((struct reg_addr *)rtk_phy-
> >reg_addr)[index];
> + struct phy_data *phy_data =
> + &((struct phy_data *)rtk_phy-
> >phy_data)[index];
> + struct phy_parameter *phy_page_setting;
> +
> + seq_printf(s, "PHY %d:\n", index);
> +
> + seq_puts(s, "Page 0:\n");
> + /* Set page 0 */
> + phy_page_setting = phy_data->page0;
> + rtk_usb_phy_set_page(regAddr, 0);
> +
> + for (i = 0; i < phy_data->page0_size; i++) {
> + u8 addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + u8 data = (phy_page_setting + i)->data;
> + u8 value = rtk_usb_phy_read(regAddr, addr);
> +
> + if ((phy_page_setting + i)->addr)
> + seq_printf(s, "Page 0: addr=0x%x
> data=0x%02x ==> read value=0x%02x\n",
> + addr, data, value);
> + else
> + seq_printf(s, "Page 0: addr=0x%x
> data=none ==> read value=0x%02x\n",
> + addr, value);
> + }
> +
> + seq_puts(s, "Page 1:\n");
> + /* Set page 1 */
> + phy_page_setting = phy_data->page1;
> + rtk_usb_phy_set_page(regAddr, 1);
> +
> + for (i = 0; i < phy_data->page1_size; i++) {
> + u8 addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + u8 data = (phy_page_setting + i)->data;
> + u8 value = rtk_usb_phy_read(regAddr, addr);
> +
> + if ((phy_page_setting + i)->addr)
> + seq_printf(s, "Page 1: addr=0x%x
> data=0x%02x ==> read value=0x%02x\n",
> + addr, data, value);
> + else
> + seq_printf(s, "Page 1: addr=0x%x
> data=none ==> read value=0x%02x\n",
> + addr, value);
> + }
> +
> + if (phy_data->page2_size == 0)
> + goto out;
> +
> + seq_puts(s, "Page 2:\n");
> + /* Set page 2 */
> + phy_page_setting = phy_data->page2;
> + rtk_usb_phy_set_page(regAddr, 2);
> +
> + for (i = 0; i < phy_data->page2_size; i++) {
> + u8 addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + u8 data = (phy_page_setting + i)->data;
> + u8 value = rtk_usb_phy_read(regAddr, addr);
> +
> + if ((phy_page_setting + i)->addr)
> + seq_printf(s, "Page 2: addr=0x%x
> data=0x%02x ==> read value=0x%02x\n",
> + addr, data, value);
> + else
> + seq_printf(s, "Page 2: addr=0x%x
> data=none ==> read value=0x%02x\n",
> + addr, value);
> + }
> +
> + seq_puts(s, "Property:\n");
> + seq_printf(s, "check_efuse: %s\n",
> + phy_data-
> >check_efuse?"Enable":"Disable");
> + seq_printf(s, "check_efuse_version: %d\n",
> + phy_data->check_efuse_version);
> + seq_printf(s, "efuse_usb_dc_cal: %d\n",
> + (int)phy_data->efuse_usb_dc_cal);
> + seq_printf(s, "efuse_usb_dc_cal_rate: %d\n",
> + phy_data->efuse_usb_dc_cal_rate);
> + seq_printf(s, "usb_dc_cal_mask: 0x%x\n",
> + phy_data->usb_dc_cal_mask);
> + seq_printf(s, "efuse_usb_dc_dis: %d\n",
> + (int)phy_data->efuse_usb_dc_dis);
> + seq_printf(s, "efuse_usb_dc_dis_rate: %d\n",
> + phy_data->efuse_usb_dc_dis_rate);
> + seq_printf(s, "usb_dc_dis_mask: 0x%x\n",
> + phy_data->usb_dc_dis_mask);
> + seq_printf(s, "usb_dc_dis_at_page0: %s\n",
> + phy_data-
> >usb_dc_dis_at_page0?"true":"false");
> + seq_printf(s, "do_toggle: %s\n",
> + phy_data->do_toggle?"Enable":"Disable");
> + seq_printf(s, "do_toggle_driving: %s\n",
> + phy_data-
> >do_toggle_driving?"Enable":"Disable");
> + seq_printf(s, "disconnect_driving_updated: 0x%x\n",
> + phy_data->disconnect_driving_updated);
> + seq_printf(s, "use_default_parameter: %s\n",
> + phy_data-
> >use_default_parameter?"Enable":"Disable");
> + seq_printf(s, "is_double_sensitivity_mode: %s\n",
> + phy_data-
> >is_double_sensitivity_mode?"Enable":"Disable");
> + seq_printf(s, "ldo_force_enable: %s\n",
> + phy_data-
> >ldo_force_enable?"Enable":"Disable");
> + seq_printf(s, "ldo_enable: %s\n",
> + phy_data->ldo_enable?"Enable":"Disable");
> + seq_printf(s, "ldo_page0_e4_compensate: %d\n",
> + phy_data->ldo_page0_e4_compensate);
> + seq_printf(s, "page0_e4_compensate: %d\n",
> + phy_data->page0_e4_compensate);
> + }
> +
> +out:
> + return 0;
> +}
> +
> +static int rtk_usb2_parameter_open(struct inode *inode, struct file
> *file)
> +{
> + return single_open(file, rtk_usb2_parameter_show, inode-
> >i_private);
> +}
> +
> +static const struct file_operations rtk_usb2_parameter_fops = {
> + .open = rtk_usb2_parameter_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
> +
> +static int __get_parameter_at_page(struct seq_file *s,
> + struct rtk_usb_phy *rtk_phy,
> + struct phy_parameter *phy_parameter_array,
> + const char *phy_page, const char *phy_addr)
> +{
> + struct phy_parameter *phy_parameter;
> + uint32_t addr;
> + int i, ret;
> +
> + ret = kstrtouint(phy_addr, 16, &addr);
> + if (ret < 0) {
> + pr_err("%s::kstrtouint() failed\n", __func__);
> + return -EINVAL;
> + }
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(addr);
> + phy_parameter = (phy_parameter_array + i);
> +
> + if (phy_parameter->addr)
> + seq_printf(s, "Now Parameter %s addr 0x%02x =
> 0x%02x\n",
> + phy_page, phy_parameter->addr,
> phy_parameter->data);
> + else
> + seq_printf(s, "Now Parameter %s addr 0x%02x is
> default\n",
> + phy_page, addr);
> +
> + dev_dbg(rtk_phy->dev, "%s addr=0x%02x data=0x%02x\n",
> + __func__, phy_parameter->addr, phy_parameter-
> >data);
> +
> + return 0;
> +}
> +
> +static int __set_parameter_at_page(
> + struct rtk_usb_phy *rtk_phy,
> + struct reg_addr *regAddr, struct phy_data *phy_data,
> + struct phy_parameter *phy_parameter_array,
> + const char *phy_page, const char *phy_addr, const char
> *phy_value)
> +{
> + struct phy_parameter *phy_parameter;
> + uint32_t addr, value;
> + int i, ret;
> +
> + ret = kstrtouint(phy_addr, 16, &addr);
> + if (ret < 0) {
> + pr_err("%s::kstrtouint() failed\n", __func__);
> + return -EINVAL;
> + }
> + ret = kstrtouint(phy_value, 16, &value);
> + if (ret < 0) {
> + pr_err("%s::kstrtouint() failed\n", __func__);
> + return -EINVAL;
> + }
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(addr);
> + phy_parameter = (phy_parameter_array + i);
> +
> + if (phy_parameter->addr) {
> + phy_parameter->data = value;
> + } else {
> + phy_parameter->addr = addr;
> + phy_parameter->data = value;
> + }
> +
> + dev_dbg(rtk_phy->dev, "%s addr=0x%02x data=0x%02x\n",
> + __func__, phy_parameter->addr, phy_parameter-
> >data);
> +
> + if (strcmp("page0", phy_page) == 0 && (addr == PAGE0_0xE4))
> + value = __updated_page0_0xe4_parameter(phy_data,
> value);
> +
> + if (rtk_usb_phy_write(regAddr, addr, value))
> + dev_err(rtk_phy->dev,
> + "[%s:%d] Error: addr=0x%02x
> value=0x%02x\n",
> + __func__, __LINE__, addr, value);
> +
> + return 0;
> +}
> +
> +static int rtk_usb2_set_parameter_show(struct seq_file *s, void
> *unused)
> +{
> + struct rtk_usb_phy *rtk_phy = s->private;
> + const struct file *file = s->file;
> + const char *file_name = file_dentry(file)->d_iname;
> + struct dentry *p_dentry = file_dentry(file)->d_parent;
> + const char *dir_name = p_dentry->d_iname;
> + struct dentry *pp_dentry = p_dentry->d_parent;
> + const char *phy_dir_name = pp_dentry->d_iname;
> + int ret, index;
> + struct phy_data *phy_data;
> +
> + for (index = 0; index < rtk_phy->phyN; index++) {
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "phy%d", index);
> + if (strncmp(name, phy_dir_name, strlen(name)) == 0) {
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[index];
> + break;
> + }
> + }
> + if (!phy_data) {
> + dev_err(rtk_phy->dev,
> + "%s: No phy_data for %s/%s/%s\n",
> + __func__, phy_dir_name, dir_name,
> file_name);
> + return -EINVAL;
> + }
> +
> + if (strcmp("page0", dir_name) == 0)
> + ret = __get_parameter_at_page(s, rtk_phy, phy_data-
> >page0,
> + dir_name, file_name);
> + else if (strcmp("page1", dir_name) == 0)
> + ret = __get_parameter_at_page(s, rtk_phy, phy_data-
> >page1,
> + dir_name, file_name);
> + else if (strcmp("page2", dir_name) == 0)
> + ret = __get_parameter_at_page(s, rtk_phy, phy_data-
> >page2,
> + dir_name, file_name);
> +
> + if (ret < 0)
> + return ret;
> +
> + seq_puts(s, "Set phy parameter by following command\n");
> + seq_printf(s, "echo \"value\" > %s/%s/%s\n",
> + phy_dir_name, dir_name, file_name);
> +
> + return 0;
> +}
> +
> +static int rtk_usb2_set_parameter_open(struct inode *inode, struct
> file *file)
> +{
> + return single_open(file, rtk_usb2_set_parameter_show, inode-
> >i_private);
> +}
> +
> +static ssize_t rtk_usb2_set_parameter_write(struct file *file,
> + const char __user *ubuf, size_t count, loff_t *ppos)
> +{
> + const char *file_name = file_dentry(file)->d_iname;
> + struct dentry *p_dentry = file_dentry(file)->d_parent;
> + const char *dir_name = p_dentry->d_iname;
> + struct dentry *pp_dentry = p_dentry->d_parent;
> + const char *phy_dir_name = pp_dentry->d_iname;
> + struct seq_file *s = file->private_data;
> + struct rtk_usb_phy *rtk_phy = s->private;
> + struct reg_addr *regAddr;
> + struct phy_data *phy_data;
> + int ret = 0;
> + char buffer[40] = {0};
> + int index;
> +
> + if (copy_from_user(&buffer, ubuf,
> + min_t(size_t, sizeof(buffer) - 1, count)))
> + return -EFAULT;
> +
> + for (index = 0; index < rtk_phy->phyN; index++) {
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "phy%d", index);
> + if (strncmp(name, phy_dir_name, strlen(name)) == 0) {
> + regAddr = &((struct reg_addr *)rtk_phy-
> >reg_addr)[index];
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[index];
> + break;
> + }
> + }
> + if (!regAddr) {
> + dev_err(rtk_phy->dev,
> + "%s: No regAddr for %s/%s/%s\n",
> + __func__, phy_dir_name, dir_name,
> file_name);
> + return -EINVAL;
> + }
> + if (!phy_data) {
> + dev_err(rtk_phy->dev,
> + "%s: No phy_data for %s/%s/%s\n",
> + __func__, phy_dir_name, dir_name,
> file_name);
> + return -EINVAL;
> + }
> +
> + if (strcmp("page0", dir_name) == 0) {
> + rtk_usb_phy_set_page(regAddr, 0);
> + ret = __set_parameter_at_page(rtk_phy, regAddr,
> phy_data,
> + phy_data->page0, dir_name, file_name,
> buffer);
> + } else if (strcmp("page1", dir_name) == 0) {
> + rtk_usb_phy_set_page(regAddr, 1);
> + ret = __set_parameter_at_page(rtk_phy, regAddr,
> phy_data,
> + phy_data->page1, dir_name, file_name,
> buffer);
> + } else if (strcmp("page2", dir_name) == 0) {
> + rtk_usb_phy_set_page(regAddr, 2);
> + ret = __set_parameter_at_page(rtk_phy, regAddr,
> phy_data,
> + phy_data->page2, dir_name, file_name,
> buffer);
> + }
> + if (ret < 0)
> + return ret;
> +
> + return count;
> +}
> +
> +static const struct file_operations rtk_usb2_set_parameter_fops = {
> + .open = rtk_usb2_set_parameter_open,
> + .write = rtk_usb2_set_parameter_write,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
> +
> +static int rtk_usb2_toggle_show(struct seq_file *s, void *unused)
> +{
> + struct rtk_usb_phy *rtk_phy = s->private;
> + struct phy_data *phy_data;
> + int i;
> +
> + for (i = 0; i < rtk_phy->phyN; i++) {
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[i];
> + seq_printf(s, "Now phy#%d do_toggle is %s.\n",
> + i, phy_data-
> >do_toggle?"Enable":"Disable");
> + }
> + seq_puts(s, "ehco 1 to enable toggle phy parameter.\n");
> +
> + return 0;
> +}
> +
> +static int rtk_usb2_toggle_open(struct inode *inode, struct file
> *file)
> +{
> + return single_open(file, rtk_usb2_toggle_show, inode-
> >i_private);
> +}
> +
> +static ssize_t rtk_usb2_toggle_write(struct file *file,
> + const char __user *ubuf, size_t count, loff_t *ppos)
> +{
> + struct seq_file *s = file->private_data;
> + struct rtk_usb_phy *rtk_phy = s->private;
> + char buf[32];
> + struct phy_data *phy_data;
> + bool enable = false;
> + int i;
> +
> + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1,
> count)))
> + return -EFAULT;
> +
> + if (!strncmp(buf, "1", 1))
> + enable = true;
> +
> + for (i = 0; i < rtk_phy->phyN; i++) {
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[i];
> + phy_data->do_toggle = enable;
> + dev_info(rtk_phy->dev, "Set phy#%d do_toggle is
> %s.\n",
> + i, phy_data-
> >do_toggle?"Enable":"Disable");
> + }
> +
> + return count;
> +}
> +
> +static const struct file_operations rtk_usb2_toggle_fops = {
> + .open = rtk_usb2_toggle_open,
> + .write = rtk_usb2_toggle_write,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
> +
> +static int create_debug_set_parameter_files(struct rtk_usb_phy
> *rtk_phy,
> + struct dentry *phy_dir, const char *page, size_t
> addr_size)
> +{
> + struct dentry *page_dir;
> + int i;
> +
> + page_dir = debugfs_create_dir(page, phy_dir);
> + if (!page_dir) {
> + dev_err(rtk_phy->dev,
> + "%s Error create folder %s fail\n",
> + __func__, page);
> + return -EINVAL;
> + }
> +
> + for (i = 0; i < addr_size; i++) {
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "%x",
> ARRAY_INDEX_MAP_PAGE_ADDR(i));
> +
> + if (!debugfs_create_file(name, 0644,
> + page_dir, rtk_phy,
> + &rtk_usb2_set_parameter_fops))
> + dev_err(rtk_phy->dev,
> + "%s Error create file %s/%s
> fail",
> + page, name, __func__);
> + }
> +
> + return 0;
> +}
> +
> +static inline void create_debug_files(struct rtk_usb_phy *rtk_phy)
> +{
> + struct dentry *phy_debug_root = NULL;
> + struct dentry *set_parameter_dir = NULL;
> +
> + phy_debug_root = create_phy_debug_root();
> +
> + if (!phy_debug_root) {
> + dev_err(rtk_phy->dev, "%s Error phy_debug_root is
> NULL",
> + __func__);
> + return;
> + }
> +
> + rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy-
> >dev),
> + phy_debug_root);
> + if (!rtk_phy->debug_dir) {
> + dev_err(rtk_phy->dev, "%s Error debug_dir is NULL",
> __func__);
> + return;
> + }
> +
> + if (!debugfs_create_file("parameter", 0444, rtk_phy-
> >debug_dir, rtk_phy,
> + &rtk_usb2_parameter_fops))
> + goto file_error;
> +
> + set_parameter_dir = debugfs_create_dir("set_parameter",
> + rtk_phy->debug_dir);
> + if (set_parameter_dir) {
> + int index, ret;
> +
> + for (index = 0; index < rtk_phy->phyN; index++) {
> + struct dentry *phy_dir;
> + struct phy_data *phy_data;
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "phy%d", index);
> +
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[index];
> +
> + phy_dir = debugfs_create_dir(name,
> set_parameter_dir);
> + if (!phy_dir) {
> + dev_err(rtk_phy->dev,
> + "%s Error create folder
> %s fail\n",
> + name, __func__);
> + goto file_error;
> + }
> +
> + ret =
> create_debug_set_parameter_files(rtk_phy, phy_dir,
> + "page0", phy_data->page0_size);
> + if (ret < 0) {
> + dev_err(rtk_phy->dev,
> + "%s Error create files
> for page0 fail\n",
> + __func__);
> + goto file_error;
> + }
> +
> + ret =
> create_debug_set_parameter_files(rtk_phy, phy_dir,
> + "page1", phy_data->page1_size);
> + if (ret < 0) {
> + dev_err(rtk_phy->dev,
> + "%s Error create files
> for page1 fail\n",
> + __func__);
> + goto file_error;
> + }
> +
> + ret =
> create_debug_set_parameter_files(rtk_phy, phy_dir,
> + "page2", phy_data->page2_size);
> + if (ret < 0) {
> + dev_err(rtk_phy->dev,
> + "%s Error create files
> for page2 fail\n",
> + __func__);
> + goto file_error;
> + }
> + }
> + }
> +
> + if (!debugfs_create_file("toggle", 0644,
> + rtk_phy->debug_dir, rtk_phy,
> &rtk_usb2_toggle_fops))
> + goto file_error;
> +
> + return;
> +
> +file_error:
> + debugfs_remove_recursive(rtk_phy->debug_dir);
> +}
> +
> +static inline void remove_debug_files(struct rtk_usb_phy *rtk_phy)
> +{
> + debugfs_remove_recursive(rtk_phy->debug_dir);
> +}
> +#else
> +static inline void create_debug_files(struct rtk_usb_phy *rtk_phy) {
> }
> +static inline void remove_debug_files(struct rtk_usb_phy *rtk_phy) {
> }
> +#endif /* CONFIG_DEBUG_FS */
> +
> +static int __get_phy_parameter_by_efuse(struct rtk_usb_phy *rtk_phy,
> + struct phy_data *phy_data, int index)
> +{
> + u8 value = 0;
> + struct nvmem_cell *cell;
> + struct soc_device_attribute rtk_soc_groot[] = {
> + { .family = "Realtek Groot",},
> + { /* empty */ }
> + };
> + struct soc_device_attribute rtk_soc_hank[] = {
> + { .family = "Realtek Hank",},
> + { /* empty */ }
> + };
> + struct soc_device_attribute rtk_soc_efuse_v1[] = {
> + { .family = "Realtek Phoenix",},
> + { .family = "Realtek Kylin",},
> + { .family = "Realtek Hercules",},
> + { .family = "Realtek Thor",},
> + { .family = "Realtek Hank",},
> + { .family = "Realtek Groot",},
> + { .family = "Realtek Stark",},
> + { .family = "Realtek Parker",},
> + { /* empty */ }
> + };
> + struct soc_device_attribute rtk_soc_dis_level_at_page0[] = {
> + { .family = "Realtek Phoenix",},
> + { .family = "Realtek Kylin",},
> + { .family = "Realtek Hercules",},
> + { .family = "Realtek Thor",},
> + { .family = "Realtek Hank",},
> + { .family = "Realtek Groot",},
> + { /* empty */ }
> + };
> +
> + if (soc_device_match(rtk_soc_efuse_v1)) {
> + dev_dbg(rtk_phy->dev, "Use efuse v1 to updated phy
> parameter\n");
> + phy_data->check_efuse_version = CHECK_EFUSE_V1;
> + } else {
> + dev_dbg(rtk_phy->dev, "Use efuse v2 to updated phy
> parameter\n");
> + phy_data->check_efuse_version = CHECK_EFUSE_V2;
> + }
> +
> + if (soc_device_match(rtk_soc_dis_level_at_page0)) {
> + dev_dbg(rtk_phy->dev, "Use usb_dc_dis_at_page0\\n");
> + phy_data->usb_dc_dis_at_page0 = true;
> +
> + phy_data->usb_dc_cal_mask = 0xf;
> + phy_data->usb_dc_dis_mask = 0xf;
> +
> + phy_data->disconnect_driving_updated = 0xf;
> + } else {
> + dev_dbg(rtk_phy->dev, "No use
> usb_dc_dis_at_page0\n");
> + phy_data->usb_dc_dis_at_page0 = false;
> +
> + phy_data->usb_dc_cal_mask = 0x1f;
> + phy_data->usb_dc_dis_mask = 0xf;
> +
> + phy_data->disconnect_driving_updated = 0x8;
> + }
> +
> + phy_data->efuse_usb_dc_cal_rate = EFUS_USB_DC_CAL_RATE;
> + phy_data->efuse_usb_dc_dis_rate = EFUS_USB_DC_DIS_RATE;
> +
> + if (soc_device_match(rtk_soc_hank))
> + phy_data->efuse_usb_dc_cal_rate = 1;
> +
> + if (!phy_data->check_efuse)
> + goto out;
> +
> + /* Read efuse for usb dc cal */
> + cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-cal");
> + if (IS_ERR(cell)) {
> + dev_warn(rtk_phy->dev, "%s failed to get usb-dc-cal:
> %ld\n",
> + __func__, PTR_ERR(cell));
> + } else {
> + unsigned char *buf;
> + size_t buf_size;
> +
> + buf = nvmem_cell_read(cell, &buf_size);
> +
> + value = buf[0] & phy_data->usb_dc_cal_mask;
> +
> + dev_dbg(rtk_phy->dev,
> + "buf=0x%x buf_size=%d value=0x%x\n",
> + buf[0], (int)buf_size, value);
> +
> + kfree(buf);
> + nvmem_cell_put(cell);
> + }
> +
> + if (phy_data->check_efuse_version == CHECK_EFUSE_V1) {
> + int rate = phy_data->efuse_usb_dc_cal_rate;
> +
> + if (value <= EFUS_USB_DC_CAL_MAX)
> + phy_data->efuse_usb_dc_cal = (int8_t)(value *
> rate);
> + else
> + phy_data->efuse_usb_dc_cal = -(int8_t)(
> + (EFUS_USB_DC_CAL_MAX & value) *
> rate);
> +
> + if (soc_device_match(rtk_soc_groot)) {
> + dev_info(rtk_phy->dev, "For groot IC we need
> a workaround to adjust efuse_usb_dc_cal\n");
> +
> + /* We don't multiple dc_cal_rate=2 for
> positive dc cal compensate */
> + if (value <= EFUS_USB_DC_CAL_MAX)
> + phy_data->efuse_usb_dc_cal =
> (int8_t)(value);
> +
> + /* We set max dc cal compensate is 0x8 if otp
> is 0x7 */
> + if (value == 0x7)
> + phy_data->efuse_usb_dc_cal =
> (int8_t)(value + 1);
> + }
> + } else { /* for CHECK_EFUSE_V2 */
> + phy_data->efuse_usb_dc_cal = value & phy_data-
> >usb_dc_cal_mask;
> + }
> +
> + dev_dbg(rtk_phy->dev, "Get Efuse usb_dc_cal=%d for index=%d
> value=%x\n",
> + phy_data->efuse_usb_dc_cal, index, value);
> +
> + /* Read efuse for usb dc disconnect level */
> + value = 0;
> + cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-dis");
> + if (IS_ERR(cell)) {
> + dev_warn(rtk_phy->dev, "%s failed to get usb-dc-dis:
> %ld\n",
> + __func__, PTR_ERR(cell));
> + } else {
> + unsigned char *buf;
> + size_t buf_size;
> +
> + buf = nvmem_cell_read(cell, &buf_size);
> +
> + value = buf[0] & phy_data->usb_dc_dis_mask;
> +
> + dev_dbg(rtk_phy->dev,
> + "buf=0x%x buf_size=%d value=0x%x\n",
> + buf[0], (int)buf_size, value);
> +
> + kfree(buf);
> + nvmem_cell_put(cell);
> + }
> +
> + if (phy_data->check_efuse_version == CHECK_EFUSE_V1) {
> + int rate = phy_data->efuse_usb_dc_dis_rate;
> +
> + if (value <= EFUS_USB_DC_DIS_MAX)
> + phy_data->efuse_usb_dc_dis = (int8_t)(value *
> rate);
> + else
> + phy_data->efuse_usb_dc_dis = -(int8_t)(
> + (EFUS_USB_DC_DIS_MAX & value) *
> rate);
> + } else { /* for CHECK_EFUSE_V2 */
> + phy_data->efuse_usb_dc_dis = value & phy_data-
> >usb_dc_dis_mask;
> + }
> +
> + dev_dbg(rtk_phy->dev, "Get Efuse usb_dc_dis=%d for index=%d
> value=%x\n",
> + phy_data->efuse_usb_dc_dis, index, value);
> +
> +out:
> + return 0;
> +}
> +
> +/* Get default phy parameter for update by efuse or
> ldo_page0_e4_compensate */
> +static int __get_default_phy_parameter_for_updated(
> + struct rtk_usb_phy *rtk_phy, int index)
> +{
> + int i;
> + struct reg_addr *regAddr;
> + struct phy_data *phy_data;
> + struct phy_parameter *phy_page_setting;
> +
> + regAddr = &((struct reg_addr *)rtk_phy->reg_addr)[index];
> + phy_data = &((struct phy_data *)rtk_phy->phy_data)[index];
> +
> + /* Get PAGE0_0xE4 default value */
> + if (phy_data->efuse_usb_dc_cal || phy_data-
> >ldo_page0_e4_compensate ||
> + (phy_data->efuse_usb_dc_dis && phy_data-
> >usb_dc_dis_at_page0)) {
> + phy_page_setting = phy_data->page0;
> + rtk_usb_phy_set_page(regAddr, 0);
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(PAGE0_0xE4);
> + if (i < phy_data->page0_size) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr) {
> + addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + data = rtk_usb_phy_read(regAddr,
> addr);
> +
> + (phy_page_setting + i)->addr = addr;
> + (phy_page_setting + i)->data = data;
> + dev_dbg(rtk_phy->dev,
> + "Get default addr %x
> value %x\n",
> + (phy_page_setting + i)-
> >addr,
> + (phy_page_setting + i)-
> >data);
> + }
> + }
> + }
> +
> + /* Get PAGE1_0xE2 default value */
> + if (phy_data->efuse_usb_dc_dis && !phy_data-
> >usb_dc_dis_at_page0) {
> + phy_page_setting = phy_data->page1;
> + rtk_usb_phy_set_page(regAddr, 1);
> +
> + i = PAGE_ADDR_MAP_ARRAY_INDEX(PAGE1_0xE2);
> + if (i < phy_data->page1_size) {
> + u8 addr = (phy_page_setting + i)->addr;
> + u8 data = (phy_page_setting + i)->data;
> +
> + if (!addr) {
> + addr = ARRAY_INDEX_MAP_PAGE_ADDR(i);
> + data = rtk_usb_phy_read(regAddr,
> addr);
> +
> + (phy_page_setting + i)->addr = addr;
> + (phy_page_setting + i)->data = data;
> + dev_dbg(rtk_phy->dev,
> + "Get default page1 addr
> %x value %x\n",
> + (phy_page_setting + i)-
> >addr,
> + (phy_page_setting + i)-
> >data);
> + }
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int __get_phy_parameter_v1(struct device *dev, struct
> phy_data *phy_data,
> + struct device_node *sub_node)
> +{
> + int phy_data_page0_size, phy_data_page1_size;
> + int phy_data_page2_size;
> + char tmp_addr[MAX_PHY_DATA_SIZE];
> + char tmp_data[MAX_PHY_DATA_SIZE];
> + int i, chip_revision, revision, ret = 0;
> +
> + chip_revision = __get_chip_revision();
> +
> + dev_dbg(dev, "%s: Chip revision is %x\n", __func__,
> chip_revision);
> +
> + ret = of_property_read_u32_index(sub_node,
> + "realtek,phy-data-page0-size", 0,
> &phy_data_page0_size);
> + if (ret)
> + goto err;
> +
> + ret = of_property_read_u32_index(sub_node,
> + "realtek,phy-data-page1-size", 0,
> &phy_data_page1_size);
> + if (ret)
> + goto err;
> +
> + dev_dbg(dev, "%s %d phy_data_page0_size=%d,
> phy_data_page1_size=%d\n",
> + __func__, __LINE__,
> + phy_data_page0_size, phy_data_page1_size);
> +
> + if (phy_data_page0_size > MAX_PHY_DATA_SIZE ||
> + phy_data_page1_size > MAX_PHY_DATA_SIZE) {
> + dev_err(dev, "%s phy_data size >
> MAX_PHY_DATA_SIZE\n",
> + __func__);
> + goto err;
> + }
> +
> + ret = of_property_read_u32_index(sub_node,
> + "realtek,phy-data-page2-size", 0,
> &phy_data_page2_size);
> + if (ret)
> + phy_data_page2_size = 0;
> + dev_dbg(dev, "%s %d phy_data_page2_size=%d\n",
> + __func__, __LINE__,
> + phy_data_page2_size);
> +
> + if (phy_data_page2_size > MAX_PHY_DATA_SIZE) {
> + dev_err(dev, "%s page2 phy_data size=%d >
> MAX_PHY_DATA_SIZE\n",
> + __func__, phy_data_page2_size);
> + goto err;
> + }
> +
> + phy_data->page0_size = phy_data_page0_size;
> + phy_data->page0 = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) *
> + phy_data_page0_size,
> + GFP_KERNEL);
> + if (!phy_data->page0) {
> + ret = -ENOMEM;
> + goto err;
> + }
> +
> + phy_data->page1_size = phy_data_page1_size;
> + phy_data->page1 = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) *
> + phy_data_page1_size,
> + GFP_KERNEL);
> + if (!phy_data->page1) {
> + ret = -ENOMEM;
> + goto err;
> + }
> +
> + phy_data->page2_size = phy_data_page2_size;
> + if (phy_data->page2_size > 0) {
> + phy_data->page2 = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) *
> + phy_data->page2_size,
> + GFP_KERNEL);
> + if (!phy_data->page2) {
> + ret = -ENOMEM;
> + goto err;
> + }
> + }
> +
> + ret = of_property_read_u8_array(sub_node, "realtek,phy-data-
> page0-addr",
> + tmp_addr, phy_data_page0_size);
> + if (ret)
> + goto err;
> +
> + revision = chip_revision;
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + char phy_data_revision[32] = {0};
> +
> + snprintf(phy_data_revision, 27, "realtek,phy-data-
> page0-%X", revision);
> +
> + ret = of_property_read_u8_array(sub_node,
> phy_data_revision,
> + tmp_data, phy_data_page0_size);
> + if (!ret) {
> + dev_dbg(dev, "%s load %s parameter\n",
> + __func__, phy_data_revision);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> + }
> +
> + /* For old device tree */
> + if (ret) {
> + ret = of_property_read_u8_array(sub_node,
> "realtek,phy-data-page0-data",
> + tmp_data, phy_data_page0_size);
> + if (ret)
> + goto err;
> + else
> + dev_info(dev, "%s load page0 parameter\n",
> + __func__);
> + }
> +
> + for (i = 0; i < phy_data_page0_size; i++) {
> + struct phy_parameter *phy_data_page0 =
> + (phy_data->page0 + i);
> +
> + phy_data_page0->addr = tmp_addr[i];
> + phy_data_page0->data = tmp_data[i];
> + }
> +
> + ret = of_property_read_u8_array(sub_node, "realtek,phy-data-
> page1-addr",
> + tmp_addr, phy_data_page1_size);
> + if (ret)
> + goto err;
> +
> + revision = chip_revision;
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + char phy_data_revision[32] = {0};
> +
> + snprintf(phy_data_revision, 27, "realtek,phy-data-
> page1-%X", revision);
> +
> + ret = of_property_read_u8_array(sub_node,
> phy_data_revision,
> + tmp_data, phy_data_page1_size);
> + if (!ret) {
> + dev_dbg(dev, "%s load %s parameter\n",
> + __func__, phy_data_revision);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> + }
> +
> + /* For old device tree */
> + if (ret) {
> + ret = of_property_read_u8_array(sub_node,
> "realtek,phy-data-page1-data",
> + tmp_data, phy_data_page1_size);
> + if (ret)
> + goto err;
> + else
> + dev_info(dev, "%s load page1 parameter\n",
> + __func__);
> + }
> +
> + for (i = 0; i < phy_data_page1_size; i++) {
> + struct phy_parameter *phy_data_page1 =
> + (phy_data->page1 + i);
> +
> + phy_data_page1->addr = tmp_addr[i];
> + phy_data_page1->data = tmp_data[i];
> + }
> +
> + if (phy_data->page2_size > 0) {
> + ret = of_property_read_u8_array(sub_node,
> + "realtek,phy-data-page2-addr",
> + tmp_addr, phy_data->page2_size);
> + if (ret)
> + goto err;
> +
> + revision = chip_revision;
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + char phy_data_revision[32] = {0};
> +
> + snprintf(phy_data_revision, 27, "realtek,phy-
> data-page2-%X",
> + revision);
> +
> + ret = of_property_read_u8_array(sub_node,
> + phy_data_revision,
> + tmp_data, phy_data_page2_size);
> + if (!ret) {
> + dev_dbg(dev, "%s load %s
> parameter\n",
> + __func__,
> phy_data_revision);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> + }
> +
> + /* For old device tree */
> + if (ret) {
> + ret = of_property_read_u8_array(sub_node,
> + "realtek,phy-data-page2-data",
> + tmp_data, phy_data->page2_size);
> + if (ret)
> + goto err;
> + else
> + dev_info(dev, "%s load page2
> parameter\n",
> + __func__);
> + }
> + for (i = 0; i < phy_data->page2_size; i++) {
> + struct phy_parameter *phy_data_page2 =
> + (phy_data->page2 + i);
> + phy_data_page2->addr = tmp_addr[i];
> + phy_data_page2->data = tmp_data[i];
> + }
> + }
> +
> +err:
> + return ret;
> +}
> +
> +static int __get_phy_parameter_v2(struct device *dev, struct
> phy_data *phy_data,
> + struct device_node *sub_node)
> +{
> + u32 page_size = 0;
> + u32 num_cells = 2; /*< addr value > */
> + u32 data_size;
> + int i, offset, chip_revision, revision, ret = 0;
> + char phy_data_revision[32] = {0};
> +
> + chip_revision = __get_chip_revision();
> +
> + /* Page 0 */
> + ret = of_property_read_u32_index(sub_node, "realtek,page0-
> size", 0, &page_size);
> + if (ret) {
> + dev_err(dev, "%s No page0_size\n", __func__);
> + goto parse_page1;
> + }
> +
> + phy_data->page0_size = page_size;
> + phy_data->page0 = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) * page_size,
> GFP_KERNEL);
> + if (!phy_data->page0) {
> + ret = -ENOMEM;
> + goto out;
> + }
> +
> + revision = chip_revision;
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + snprintf(phy_data_revision, 23, "realtek,page0-data-
> %X", revision);
> +
> + if (of_get_property(sub_node, phy_data_revision,
> &data_size)) {
> + dev_dbg(dev, "%s load %s parameter
> (data_size=%d)\n",
> + __func__, phy_data_revision,
> data_size);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> +
> + data_size = 0;
> + ret = 0;
> + }
> + data_size = data_size / (sizeof(u32) * num_cells);
> +
> + for (i = 0; i < data_size; i++) {
> + struct phy_parameter *phy_data_page;
> + u32 addr, data;
> + int index;
> +
> + offset = i * num_cells;
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset, &addr);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, addr);
> + break;
> + }
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset + 1, &data);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, data);
> + break;
> + }
> +
> + index = PAGE_ADDR_MAP_ARRAY_INDEX(addr);
> + phy_data_page = (phy_data->page0 + index);
> + phy_data_page->addr = (char)addr;
> + phy_data_page->data = (char)data;
> +
> + dev_dbg(dev, "%s index=%d addr=0x%x data=0x%x\n",
> + phy_data_revision, index,
> + phy_data_page->addr, phy_data_page-
> >data);
> + }
> +
> +parse_page1:
> + /* Page 1 */
> + ret = of_property_read_u32_index(sub_node, "realtek,page1-
> size", 0, &page_size);
> + if (ret) {
> + dev_err(dev, "%s No page0_size\n", __func__);
> + goto parse_page2;
> + }
> +
> + phy_data->page1_size = page_size;
> + phy_data->page1 = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) * page_size,
> GFP_KERNEL);
> + if (!phy_data->page1) {
> + ret = -ENOMEM;
> + goto out;
> + }
> +
> + revision = chip_revision;
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + snprintf(phy_data_revision, 23, "realtek,page1-
> data_%X", revision);
> +
> + if (of_get_property(sub_node, phy_data_revision,
> &data_size)) {
> + dev_dbg(dev, "%s load %s parameter
> (data_size=%d)\n",
> + __func__, phy_data_revision,
> data_size);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> +
> + data_size = 0;
> + ret = 0;
> + }
> + data_size = data_size / (sizeof(u32) * num_cells);
> +
> + for (i = 0; i < data_size; i++) {
> + struct phy_parameter *phy_data_page;
> + u32 addr, data;
> + int index;
> +
> + offset = i * num_cells;
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset, &addr);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, addr);
> + break;
> + }
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset + 1, &data);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, data);
> + break;
> + }
> +
> + index = PAGE_ADDR_MAP_ARRAY_INDEX(addr);
> + phy_data_page = phy_data->page1 + index;
> + phy_data_page->addr = (char)addr;
> + phy_data_page->data = (char)data;
> +
> + dev_dbg(dev, "%s index=%d addr=0x%x data=0x%x\n",
> + phy_data_revision, index,
> + phy_data_page->addr, phy_data_page-
> >data);
> + }
> +
> +parse_page2:
> + /* Page 2 */
> + ret = of_property_read_u32_index(sub_node, "realtek,page2-
> size", 0, &page_size);
> + if (ret) {
> + dev_dbg(dev, "%s No page2_size\n", __func__);
> + goto out;
> + }
> +
> + phy_data->page2_size = page_size;
> + phy_data->page2 = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) * page_size,
> GFP_KERNEL);
> + if (!phy_data->page2) {
> + ret = -ENOMEM;
> + goto out;
> + }
> +
> + revision = chip_revision;
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + snprintf(phy_data_revision, 23, "realtek,page2-data-
> %X", revision);
> +
> + if (of_get_property(sub_node, phy_data_revision,
> &data_size)) {
> + dev_dbg(dev, "%s load %s parameter
> (data_size=%d)\n",
> + __func__, phy_data_revision,
> data_size);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> +
> + data_size = 0;
> + ret = 0;
> + }
> + data_size = data_size / (sizeof(u32) * num_cells);
> +
> + for (i = 0; i < data_size; i++) {
> + struct phy_parameter *phy_data_page;
> + u32 addr, data;
> + int index;
> +
> + offset = i * num_cells;
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset, &addr);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, addr);
> + break;
> + }
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset + 1, &data);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, data);
> + break;
> + }
> +
> + index = PAGE_ADDR_MAP_ARRAY_INDEX(addr);
> + phy_data_page = phy_data->page2 + index;
> + phy_data_page->addr = (char)addr;
> + phy_data_page->data = (char)data;
> +
> + dev_dbg(dev, "%s index=%d addr=0x%x data=0x%x\n",
> + phy_data_revision, index,
> + phy_data_page->addr, phy_data_page-
> >data);
> + }
> +
> +out:
> + return ret;
> +}
> +
> +static int __get_phy_parameter(struct rtk_usb_phy *rtk_phy, int
> index)
> +{
> + struct device *dev = rtk_phy->dev;
> + struct reg_addr *addr =
> + &((struct reg_addr *)rtk_phy->reg_addr)[index];
> + struct phy_data *phy_data =
> + &((struct phy_data *)rtk_phy->phy_data)[index];
> + char phy_name[5], phy_name_v2[10];
> + struct device_node *sub_node;
> + int ret = 0;
> +
> + addr->reg_wrap_vstatus = of_iomap(dev->of_node, 0);
> + addr->reg_gusb2phyacc0 = of_iomap(dev->of_node, index + 1);
> + addr->vstatus_index = index;
> + dev_dbg(dev, "%s %d #%d reg_wrap_vstatus=%p\n",
> + __func__, __LINE__,
> + index, addr->reg_wrap_vstatus);
> + dev_dbg(dev, "%s %d #%d reg_gusb2phyacc0=%p\n",
> + __func__, __LINE__,
> + index, addr->reg_gusb2phyacc0);
> +
> + snprintf(phy_name, 5, "phy%d", index);
> +
> + sub_node = of_get_child_by_name(dev->of_node, phy_name);
> + if (sub_node) {
> + dev_dbg(dev, "%s %d: #%d Get phy data v1 sub_node for
> %s\n",
> + __func__, __LINE__, index, phy_name);
> + ret = __get_phy_parameter_v1(dev, phy_data,
> sub_node);
> + if (ret)
> + goto err;
> + } else {
> + snprintf(phy_name_v2, 10, "phy%d_data", index);
> + sub_node = of_get_child_by_name(dev->of_node,
> phy_name_v2);
> + if (sub_node) {
> + dev_dbg(dev, "%s %d: #%d Get phy data v2
> sub_node for %s\n",
> + __func__, __LINE__, index, phy_name_v2);
> + ret = __get_phy_parameter_v2(dev, phy_data,
> sub_node);
> + if (ret)
> + goto err;
> + }
> + }
> +
> + if (!sub_node)
> + goto err;
> +
> + if (of_property_read_bool(sub_node, "realtek,do-toggle"))
> + phy_data->do_toggle = true;
> + else
> + phy_data->do_toggle = false;
> +
> + if (of_property_read_bool(sub_node, "realtek,do-toggle-
> driving"))
> + phy_data->do_toggle_driving = true;
> + else
> + phy_data->do_toggle_driving = false;
> +
> + if (of_property_read_bool(sub_node, "realtek,check-efuse"))
> + phy_data->check_efuse = true;
> + else
> + phy_data->check_efuse = false;
> +
> + if (of_property_read_bool(sub_node, "realtek,use-default-
> parameter"))
> + phy_data->use_default_parameter = true;
> + else
> + phy_data->use_default_parameter = false;
> +
> + if (of_property_read_bool(sub_node,
> + "realtek,is-double-sensitivity-mode"))
> + phy_data->is_double_sensitivity_mode = true;
> + else
> + phy_data->is_double_sensitivity_mode = false;
> +
> + if (of_property_read_bool(sub_node,
> + "realtek,ldo-force-enable"))
> + phy_data->ldo_force_enable = true;
> + else
> + phy_data->ldo_force_enable = false;
> +
> + if (of_property_read_s32(sub_node,
> + "realtek,ldo-page0-e4-compensate", &phy_data-
> >ldo_page0_e4_compensate))
> + phy_data->ldo_page0_e4_compensate = 0;
> +
> + if (of_property_read_s32(sub_node,
> + "realtek,page0-e4-compensate", &phy_data-
> >page0_e4_compensate))
> + phy_data->page0_e4_compensate = 0;
> +
> + __get_phy_parameter_by_efuse(rtk_phy, phy_data, index);
> +
> + __get_default_phy_parameter_for_updated(rtk_phy, index);
> +err:
> + return ret;
> +}
> +
> +static int rtk_usb2phy_probe(struct platform_device *pdev)
> +{
> + struct rtk_usb_phy *rtk_phy;
> + struct device *dev = &pdev->dev;
> + int index, ret = 0;
> + int port_index, phyN;
> +
> + rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
> + if (!rtk_phy)
> + return -ENOMEM;
> +
> + rtk_phy->dev = &pdev->dev;
> + rtk_phy->phy.dev = rtk_phy->dev;
> + rtk_phy->phy.label = RTK_USB2PHY_NAME;
> + rtk_phy->phy.init = rtk_usb_phy_init;
> + rtk_phy->phy.shutdown = rtk_usb_phy_shutdown;
> + rtk_phy->phy.notify_port_status =
> rtk_usb_phy_notify_port_status;
> +
> + if (!dev->of_node) {
> + dev_err(dev, "%s %d No device node\n", __func__,
> __LINE__);
> + goto err;
> + }
> +
> + rtk_phy->usb_regs = syscon_regmap_lookup_by_phandle(dev-
> >of_node, "realtek,usb");
> + if (IS_ERR(rtk_phy->usb_regs)) {
> + dev_info(dev, "%s: DTS no support usb regs syscon\n",
> __func__);
> + rtk_phy->usb_regs = NULL;
> + }
> +
> + rtk_phy->mac_regs = syscon_regmap_lookup_by_phandle(dev-
> >of_node, "realtek,mac");
> + if (IS_ERR(rtk_phy->mac_regs)) {
> + dev_info(dev, "%s: DTS no support mac regs syscon\n",
> __func__);
> + rtk_phy->mac_regs = NULL;
> + }
> +
> + rtk_phy->usb_ctrl_regs = syscon_regmap_lookup_by_phandle(dev-
> >of_node, "realtek,usb_ctrl");
> + if (IS_ERR(rtk_phy->usb_ctrl_regs)) {
> + dev_info(dev, "%s: DTS no support usb_ctrl regs
> syscon\n", __func__);
> + rtk_phy->usb_ctrl_regs = NULL;
> + }
> +
> + ret = of_property_read_u32_index(dev->of_node, "realtek,port-
> index", 0,
> + &port_index);
> + if (ret)
> + port_index = -1;
> +
> + ret = of_property_read_u32_index(dev->of_node,
> "realtek,phyN", 0,
> + &phyN);
> + if (ret) {
> + dev_err(dev, "%s get phyN fail (ret=%d)\n", __func__,
> ret);
> + goto err;
> + }
> +
> + dev_dbg(dev, "%s port_index=%d phyN=%d\n", __func__,
> port_index, phyN);
> +
> + rtk_phy->port_index = port_index;
> + rtk_phy->phyN = phyN;
> + rtk_phy->reg_addr = devm_kzalloc(dev,
> + sizeof(struct reg_addr) * phyN, GFP_KERNEL);
> + if (!rtk_phy->reg_addr)
> + return -ENOMEM;
> +
> + rtk_phy->phy_data = devm_kzalloc(dev,
> + sizeof(struct phy_data) * phyN, GFP_KERNEL);
> + if (!rtk_phy->phy_data)
> + return -ENOMEM;
> +
> + for (index = 0; index < phyN; index++) {
> + ret = __get_phy_parameter(rtk_phy, index);
> + if (ret) {
> + dev_err(dev, "%s: __get_phy_parameter fail
> ret=%d\n",
> + __func__, ret);
> + goto err;
> + }
> + }
> +
> + platform_set_drvdata(pdev, rtk_phy);
> +
> + ret = usb_add_phy_dev(&rtk_phy->phy);
> + if (ret)
> + goto err;
> +
> + create_debug_files(rtk_phy);
> +
> +err:
> + dev_dbg(dev, "Probe RTK USB 2.0 PHY (ret=%d)\n", ret);
> +
> + return ret;
> +}
> +
> +static int rtk_usb2phy_remove(struct platform_device *pdev)
> +{
> + struct rtk_usb_phy *rtk_phy = platform_get_drvdata(pdev);
> +
> + remove_debug_files(rtk_phy);
> +
> + usb_remove_phy(&rtk_phy->phy);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_OF
> +static const struct of_device_id usbphy_rtk_dt_match[] = {
> + { .compatible = "realtek,usb2phy", },
> + { .compatible = "realtek,rtd-usb2phy", },
> + { .compatible = "realtek,rtd1295-usb2phy", },
> + { .compatible = "realtek,rtd1395-usb2phy", },
> + { .compatible = "realtek,rtd1619-usb2phy", },
> + { .compatible = "realtek,rtd1319-usb2phy", },
> + { .compatible = "realtek,rtd1619b-usb2phy", },
> + { .compatible = "realtek,rtd1312c-usb2phy", },
> + { .compatible = "realtek,rtd1319d-usb2phy", },
> + { .compatible = "realtek,rtd1315e-usb2phy", },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
> +#endif
> +
> +static struct platform_driver rtk_usb2phy_driver = {
> + .probe = rtk_usb2phy_probe,
> + .remove = rtk_usb2phy_remove,
> + .driver = {
> + .name = RTK_USB2PHY_NAME,
> + .owner = THIS_MODULE,
> + .of_match_table = of_match_ptr(usbphy_rtk_dt_match),
> + },
> +};
> +
> +module_platform_driver(rtk_usb2phy_driver);
> +
> +MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:" RTK_USB2PHY_NAME);
> +MODULE_AUTHOR("Realtek Semiconductor Corporation");
> +MODULE_DESCRIPTION("RTK usb 2.0 phy driver");
> diff --git a/drivers/usb/phy/phy-rtk-usb3.c b/drivers/usb/phy/phy-
> rtk-usb3.c
> new file mode 100644
> index 000000000000..dd669fd75ee6
> --- /dev/null
> +++ b/drivers/usb/phy/phy-rtk-usb3.c
> @@ -0,0 +1,1165 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * phy-rtk-usb3.c RTK usb3.0 phy driver
> + *
> + * copyright (c) 2023 realtek semiconductor corporation
> + *
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/of_address.h>
> +#include <linux/uaccess.h>
> +#include <linux/debugfs.h>
> +#include <linux/nvmem-consumer.h>
> +#include <linux/regmap.h>
> +#include <linux/sys_soc.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/usb.h>
> +#include <linux/usb/hcd.h>
> +#include <linux/usb/phy.h>
> +
> +#include "phy-rtk-usb.h"
> +
> +#define RTK_USB3PHY_NAME "rtk-usb3phy"
> +
> +#define USB_MDIO_CTRL_PHY_BUSY BIT(7)
> +#define USB_MDIO_CTRL_PHY_WRITE BIT(0)
> +#define USB_MDIO_CTRL_PHY_ADDR_SHIFT 8
> +#define USB_MDIO_CTRL_PHY_DATA_SHIFT 16
> +
> +#define PHY_ADDR_0x09 0x09
> +#define PHY_ADDR_0x0B 0x0B
> +#define PHY_ADDR_0x0D 0x0D
> +#define PHY_ADDR_0x10 0x10
> +#define PHY_ADDR_0x1F 0x1F
> +#define PHY_ADDR_0x20 0x20
> +#define PHY_ADDR_0x30 0x30
> +
> +#define REG_0x0B_RX_OFFSET_RANGE_MASK 0xC
> +#define REG_0x0D_RX_DEBUG_TEST_EN BIT(6)
> +#define REG_0x10_DEBUG_MODE_SETTING 0x3C0
> +#define REG_0x10_DEBUG_MODE_SETTING_MASK 0x3F8
> +#define REG_0x1F_RX_OFFSET_CODE_MASK 0x1E
> +
> +#define USB_U3_TX_LFPS_SWING_TRIM_SHIFT 4
> +#define USB_U3_TX_LFPS_SWING_TRIM_MASK 0xF
> +
> +#define PHY_ADDR_MAP_ARRAY_INDEX(addr) (addr)
> +#define ARRAY_INDEX_MAP_PHY_ADDR(index) (index)
> +
> +#define WRAP_CTR_reg 0x0
> +#define PIPE3_POWER_DOWN_SEL BIT(10)
> +
> +struct reg_addr {
> + void __iomem *reg_mdio_ctl;
> +};
> +
> +struct phy_parameter {
> + u8 addr;
> + u16 data;
> +};
> +
> +struct phy_data {
> + int size;
> + struct phy_parameter *parameter;
> +
> + bool check_efuse;
> + u8 efuse_usb_u3_tx_lfps_swing_trim;
> + bool do_toggle;
> + bool do_toggle_once;
> + bool use_default_parameter;
> + bool check_rx_front_end_offset;
> +};
> +
> +static int rtk_usb_phy3_wait_vbusy(struct reg_addr *regAddr)
> +{
> + return utmi_wait_register(regAddr->reg_mdio_ctl,
> USB_MDIO_CTRL_PHY_BUSY, 0);
> +}
> +
> +static u16 rtk_usb_phy_read(struct reg_addr *regAddr, char addr)
> +{
> + unsigned int regVal;
> + u32 value;
> +
> + regVal = (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT);
> +
> + writel(regVal, regAddr->reg_mdio_ctl);
> +
> + rtk_usb_phy3_wait_vbusy(regAddr);
> +
> + value = readl(regAddr->reg_mdio_ctl);
> + value = value >> USB_MDIO_CTRL_PHY_DATA_SHIFT;
> +
> + return (u16)value;
> +}
> +
> +static int rtk_usb_phy_write(struct reg_addr *regAddr, char addr,
> u16 data)
> +{
> + unsigned int regVal;
> +
> + regVal = USB_MDIO_CTRL_PHY_WRITE |
> + (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT) |
> + (data << USB_MDIO_CTRL_PHY_DATA_SHIFT);
> +
> + writel(regVal, regAddr->reg_mdio_ctl);
> +
> + rtk_usb_phy3_wait_vbusy(regAddr);
> +
> + return 0;
> +}
> +
> +static void do_rtk_usb3_phy_toggle(struct rtk_usb_phy *rtk_phy,
> + int index, bool isConnect);
> +
> +static int do_rtk_usb_phy_init(struct rtk_usb_phy *rtk_phy, int
> phy_index)
> +{
> + struct reg_addr *regAddr =
> + &((struct reg_addr *)rtk_phy-
> >reg_addr)[phy_index];
> + struct phy_data *phy_data =
> + &((struct phy_data *)rtk_phy-
> >phy_data)[phy_index];
> + int index = 0;
> + struct phy_parameter *phy_parameter = phy_data->parameter;
> +
> + dev_dbg(rtk_phy->dev, "%s: init phy#%d\n", __func__,
> phy_index);
> +
> + if (phy_data->use_default_parameter) {
> + dev_info(rtk_phy->dev, "%s phy#%d use default
> parameter\n",
> + __func__, phy_index);
> + goto do_toggle;
> + }
> +
> + for (index = 0; index < phy_data->size; index++) {
> + u8 addr = (phy_parameter + index)->addr;
> + u16 data = (phy_parameter + index)->data;
> +
> + if (addr == 0xFF)
> + continue;
> +
> + if (addr == PHY_ADDR_0x20) {
> + u8 efuse_val = phy_data-
> >efuse_usb_u3_tx_lfps_swing_trim;
> + u16 val_mask =
> USB_U3_TX_LFPS_SWING_TRIM_MASK;
> + int val_shift =
> USB_U3_TX_LFPS_SWING_TRIM_SHIFT;
> +
> + if (efuse_val) {
> + data &= ~(val_mask << val_shift);
> + data |= ((efuse_val & val_mask) <<
> val_shift);
> + }
> + }
> +
> + rtk_usb_phy_write(regAddr, addr, data);
> + }
> +
> + for (index = 0; index < phy_data->size; index++) {
> + u8 addr = (phy_parameter + index)->addr;
> + u16 data = (phy_parameter + index)->data;
> +
> + if (addr == 0xFF)
> + continue;
> +
> + dev_dbg(rtk_phy->dev, "[USB3_PHY], addr = 0x%02x,
> data = 0x%04x ==> read value = 0x%04x\n",
> + addr, data,
> + rtk_usb_phy_read(regAddr, addr));
> + }
> +
> +do_toggle:
> + if (phy_data->do_toggle_once)
> + phy_data->do_toggle = true;
> +
> + do_rtk_usb3_phy_toggle(rtk_phy, phy_index, false);
> +
> + if (phy_data->do_toggle_once) {
> + u16 check_value = 0;
> + int count = 10;
> + u16 value_0x0D, value_0x10;
> +
> + /* Enable Debug mode by set 0x0D and 0x10 */
> + value_0x0D = rtk_usb_phy_read(regAddr,
> PHY_ADDR_0x0D);
> + value_0x10 = rtk_usb_phy_read(regAddr,
> PHY_ADDR_0x10);
> +
> + rtk_usb_phy_write(regAddr, PHY_ADDR_0x0D,
> + value_0x0D | REG_0x0D_RX_DEBUG_TEST_EN);
> + rtk_usb_phy_write(regAddr, PHY_ADDR_0x10,
> + (value_0x10 &
> ~REG_0x10_DEBUG_MODE_SETTING_MASK) |
> + REG_0x10_DEBUG_MODE_SETTING);
> +
> + check_value = rtk_usb_phy_read(regAddr,
> PHY_ADDR_0x30);
> +
> + while (!(check_value & BIT(15))) {
> + check_value = rtk_usb_phy_read(regAddr,
> PHY_ADDR_0x30);
> + mdelay(1);
> + if (count-- < 0)
> + break;
> + }
> +
> + if (!(check_value & BIT(15)))
> + dev_info(rtk_phy->dev, "toggle fail
> addr=0x%02x, data=0x%04x\n",
> + PHY_ADDR_0x30, check_value);
> + else
> + dev_info(rtk_phy->dev, "toggle okay
> addr=0x%02x, data=0x%04x\n",
> + PHY_ADDR_0x30, check_value);
> +
> + /* Disable Debug mode by set 0x0D and 0x10 to
> default*/
> + rtk_usb_phy_write(regAddr, PHY_ADDR_0x0D,
> value_0x0D);
> + rtk_usb_phy_write(regAddr, PHY_ADDR_0x10,
> value_0x10);
> +
> + phy_data->do_toggle = false;
> + }
> +
> +
> + if (phy_data->check_rx_front_end_offset) {
> + u16 rx_offset_code, rx_offset_range;
> + bool do_update = false;
> +
> + rx_offset_code = rtk_usb_phy_read(regAddr,
> PHY_ADDR_0x1F);
> + if (((rx_offset_code & REG_0x1F_RX_OFFSET_CODE_MASK)
> == 0x0) ||
> + ((rx_offset_code &
> REG_0x1F_RX_OFFSET_CODE_MASK) ==
> + REG_0x1F_RX_OFFSET_CODE_MASK))
> + do_update = true;
> +
> + rx_offset_range = rtk_usb_phy_read(regAddr,
> PHY_ADDR_0x0B);
> + if (((rx_offset_range &
> REG_0x0B_RX_OFFSET_RANGE_MASK) ==
> + REG_0x0B_RX_OFFSET_RANGE_MASK) &&
> do_update) {
> + dev_warn(rtk_phy->dev, "Don't update
> rx_offset_range (rx_offset_code=0x%x, rx_offset_range=0x%x)\n",
> + rx_offset_code, rx_offset_range);
> + do_update = false;
> + }
> +
> + if (do_update) {
> + u16 tmp1, tmp2;
> +
> + tmp1 = rx_offset_range &
> (~REG_0x0B_RX_OFFSET_RANGE_MASK);
> + tmp2 = rx_offset_range &
> REG_0x0B_RX_OFFSET_RANGE_MASK;
> + tmp2 += (1 << 2);
> + rx_offset_range = tmp1 | (tmp2 &
> REG_0x0B_RX_OFFSET_RANGE_MASK);
> + rtk_usb_phy_write(regAddr, PHY_ADDR_0x0B,
> rx_offset_range);
> + goto do_toggle;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int rtk_usb_phy_init(struct usb_phy *phy)
> +{
> + struct rtk_usb_phy *rtk_phy = container_of(phy, struct
> rtk_usb_phy, phy);
> + int ret = 0;
> + int i;
> + unsigned long phy_init_time = jiffies;
> +
> + if (!rtk_phy) {
> + pr_err("%s rtk_phy is NULL!\n", __func__);
> + return -ENODEV;
> + }
> +
> + dev_dbg(phy->dev, "Init RTK USB 3.0 PHY\n");
> + for (i = 0; i < rtk_phy->phyN; i++)
> + ret = do_rtk_usb_phy_init(rtk_phy, i);
> +
> + dev_info(phy->dev, "Initialized RTK USB 3.0 PHY (take
> %dms)\n",
> + jiffies_to_msecs(jiffies - phy_init_time));
> + return ret;
> +}
> +
> +static void rtk_usb_phyhutdown(struct usb_phy *phy)
> +{
> + dev_dbg(phy->dev, "Shutdown RTK USB 3.0 PHY\n");
> +}
> +
> +static void do_rtk_usb3_phy_toggle(struct rtk_usb_phy *rtk_phy, int
> i,
> + bool isConnect)
> +{
> + struct reg_addr *regAddr = &((struct reg_addr *)rtk_phy-
> >reg_addr)[i];
> + struct phy_data *phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[i];
> + struct phy_parameter *phy_parameter;
> + size_t index;
> +
> + if (!rtk_phy) {
> + pr_err("%s rtk_phy is NULL!\n", __func__);
> + return;
> + }
> +
> + regAddr = &((struct reg_addr *)rtk_phy->reg_addr)[i];
> + phy_data = &((struct phy_data *)rtk_phy->phy_data)[i];
> +
> + if (!phy_data) {
> + dev_err(rtk_phy->dev, "%s phy_data is NULL!\n",
> __func__);
> + return;
> + }
> +
> + if (!phy_data->do_toggle)
> + return;
> +
> + /* Disable usb3 phy suspend form usb wrapper */
> + if (rtk_phy->usb_regs)
> + regmap_update_bits(rtk_phy->usb_regs, WRAP_CTR_reg,
> + (unsigned int)PIPE3_POWER_DOWN_SEL,
> + (unsigned int)PIPE3_POWER_DOWN_SEL);
> +
> + phy_parameter = phy_data->parameter;
> +
> + index = PHY_ADDR_MAP_ARRAY_INDEX(PHY_ADDR_0x09);
> +
> + if (index < phy_data->size) {
> + u8 addr = (phy_parameter + index)->addr;
> + u16 data = (phy_parameter + index)->data;
> +
> + if (addr == 0xFF) {
> + addr = ARRAY_INDEX_MAP_PHY_ADDR(index);
> + data = rtk_usb_phy_read(regAddr, addr);
> + (phy_parameter + index)->addr = addr;
> + (phy_parameter + index)->data = data;
> + }
> + mdelay(1);
> + dev_info(rtk_phy->dev,
> + "%s ########## to toggle PHY addr 0x09
> BIT(9)\n",
> + __func__);
> + rtk_usb_phy_write(regAddr, addr, data&(~BIT(9)));
> + mdelay(1);
> + rtk_usb_phy_write(regAddr, addr, data);
> + }
> + dev_info(rtk_phy->dev, "%s ########## PHY addr 0x1f =
> 0x%04x\n",
> + __func__, rtk_usb_phy_read(regAddr,
> PHY_ADDR_0x1F));
> +
> + /* Enable usb3 phy suspend form usb wrapper, power control by
> mac */
> + if (rtk_phy->usb_regs)
> + regmap_update_bits(rtk_phy->usb_regs, WRAP_CTR_reg,
> + (unsigned int)PIPE3_POWER_DOWN_SEL,
> + (unsigned int)(~PIPE3_POWER_DOWN_SEL));
> +}
> +
> +static void rtk_usb3_phy_toggle(struct usb_phy *usb3_phy, bool
> isConnect, int port)
> +{
> + int index = port;
> + struct rtk_usb_phy *rtk_phy = NULL;
> +
> + if (usb3_phy != NULL && usb3_phy->dev != NULL)
> + rtk_phy = dev_get_drvdata(usb3_phy->dev);
> +
> + if (rtk_phy == NULL) {
> + pr_err("%s ERROR! NO this device\n", __func__);
> + return;
> + }
> +
> + if (index > rtk_phy->phyN) {
> + pr_err("%s %d ERROR! port=%d > phyN=%d\n",
> + __func__, __LINE__, index, rtk_phy-
> >phyN);
> + return;
> + }
> +
> + do_rtk_usb3_phy_toggle(rtk_phy, index, isConnect);
> +}
> +
> +static int rtk_usb_phy_notify_port_status(struct usb_phy *x, int
> port,
> + u16 portstatus, u16 portchange)
> +{
> + bool isConnect = false;
> +
> + pr_debug("%s port=%d portstatus=0x%x portchange=0x%x\n",
> + __func__, port, (int)portstatus,
> (int)portchange);
> + if (portstatus & USB_PORT_STAT_CONNECTION)
> + isConnect = true;
> +
> + if (portchange & USB_PORT_STAT_C_CONNECTION)
> + rtk_usb3_phy_toggle(x, isConnect, port);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_DEBUG_FS
> +static struct dentry *create_phy_debug_root(void)
> +{
> + struct dentry *phy_debug_root;
> +
> + phy_debug_root = debugfs_lookup("phy", usb_debug_root);
> + if (!phy_debug_root) {
> + phy_debug_root = debugfs_create_dir("phy",
> usb_debug_root);
> + if (!phy_debug_root)
> + pr_err("%s Error phy_debug_root is NULL\n",
> __func__);
> + else
> + pr_debug("%s Create phy_debug_root folder\n",
> __func__);
> + }
> +
> + return phy_debug_root;
> +}
> +
> +static int rtk_usb3_parameter_show(struct seq_file *s, void *unused)
> +{
> + struct rtk_usb_phy *rtk_phy = s->private;
> + int i, index;
> +
> + for (i = 0; i < rtk_phy->phyN; i++) {
> + struct reg_addr *regAddr =
> + &((struct reg_addr *)rtk_phy-
> >reg_addr)[i];
> + struct phy_data *phy_data =
> + &((struct phy_data *)rtk_phy-
> >phy_data)[i];
> + struct phy_parameter *phy_parameter;
> +
> + phy_parameter = phy_data->parameter;
> +
> + seq_printf(s, "[USB3_PHY] PHY %d\n", i);
> +
> + for (index = 0; index < phy_data->size; index++) {
> + u8 addr = ARRAY_INDEX_MAP_PHY_ADDR(index);
> + u16 data = (phy_parameter + index)->data;
> +
> + if ((phy_parameter + index)->addr == 0xFF)
> + seq_printf(s, "[USB3_PHY], addr =
> 0x%02x, data = none ==> read value = 0x%04x\n",
> + addr,
> + rtk_usb_phy_read(regAddr,
> addr));
> + else
> + seq_printf(s, "[USB3_PHY], addr =
> 0x%02x, data = 0x%04x ==> read value = 0x%04x\n",
> + addr, data,
> + rtk_usb_phy_read(regAddr,
> addr));
> + }
> +
> + seq_puts(s, "Property:\n");
> + seq_printf(s, "check_efuse: %s\n",
> + phy_data-
> >check_efuse?"Enable":"Disable");
> + seq_printf(s, "efuse_usb_u3_tx_lfps_swing_trim:
> 0x%x\n",
> + (int)phy_data-
> >efuse_usb_u3_tx_lfps_swing_trim);
> + seq_printf(s, "do_toggle: %s\n",
> + phy_data->do_toggle?"Enable":"Disable");
> + seq_printf(s, "do_toggle_once: %s\n",
> + phy_data-
> >do_toggle_once?"Enable":"Disable");
> + seq_printf(s, "use_default_parameter: %s\n",
> + phy_data-
> >use_default_parameter?"Enable":"Disable");
> + }
> + return 0;
> +}
> +
> +static int rtk_usb3_parameter_open(struct inode *inode, struct file
> *file)
> +{
> + return single_open(file, rtk_usb3_parameter_show, inode-
> >i_private);
> +}
> +
> +static const struct file_operations rtk_usb3_parameter_fops = {
> + .open = rtk_usb3_parameter_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
> +
> +static int __get_parameter_at_page(struct seq_file *s,
> + struct rtk_usb_phy *rtk_phy,
> + struct phy_parameter *phy_parameter_array,
> + const char *phy_addr)
> +{
> + struct phy_parameter *phy_parameter;
> + uint32_t addr;
> + int i, ret;
> +
> + ret = kstrtouint(phy_addr, 16, &addr);
> + if (ret < 0) {
> + pr_err("%s::kstrtouint() failed\n", __func__);
> + return -EINVAL;
> + }
> +
> + i = PHY_ADDR_MAP_ARRAY_INDEX(addr);
> + phy_parameter = (phy_parameter_array + i);
> +
> + if (phy_parameter->addr != 0xFF)
> + seq_printf(s, "Now Parameter addr 0x%02x = 0x%04x\n",
> + phy_parameter->addr, phy_parameter-
> >data);
> + else
> + seq_printf(s, "Now Parameter addr 0x%02x is
> default\n",
> + addr);
> +
> + dev_dbg(rtk_phy->dev, "%s addr=0x%02x data=0x%04x\n",
> + __func__, phy_parameter->addr, phy_parameter-
> >data);
> +
> + return 0;
> +}
> +
> +static int __set_parameter_at_page(
> + struct rtk_usb_phy *rtk_phy,
> + struct reg_addr *regAddr, struct phy_data *phy_data,
> + struct phy_parameter *phy_parameter_array,
> + const char *phy_addr, const char *phy_value)
> +{
> + struct phy_parameter *phy_parameter;
> + uint32_t addr, value;
> + int i, ret;
> +
> + ret = kstrtouint(phy_addr, 16, &addr);
> + if (ret < 0) {
> + pr_err("%s::kstrtouint() failed\n", __func__);
> + return -EINVAL;
> + }
> + ret = kstrtouint(phy_value, 16, &value);
> + if (ret < 0) {
> + pr_err("%s::kstrtouint() failed\n", __func__);
> + return -EINVAL;
> + }
> +
> + i = PHY_ADDR_MAP_ARRAY_INDEX(addr);
> + phy_parameter = (phy_parameter_array + i);
> +
> + if (phy_parameter->addr != 0xFF) {
> + phy_parameter->data = value;
> + } else {
> + phy_parameter->addr = addr;
> + phy_parameter->data = value;
> + }
> +
> + dev_info(rtk_phy->dev, "%s addr=0x%02x data=0x%04x\n",
> + __func__, phy_parameter->addr, phy_parameter-
> >data);
> +
> + if (addr == PHY_ADDR_0x20)
> + dev_info(rtk_phy->dev,
> + "%s PHY_ADDR_0x20 NOT use efuse
> u3_tx_lfps_swing_trim value\n",
> + __func__);
> +
> + if (rtk_usb_phy_write(regAddr, addr, value))
> + dev_err(rtk_phy->dev,
> + "[%s:%d] Error: addr=0x%02x
> value=0x%04x\n",
> + __func__, __LINE__, addr, value);
> +
> + return 0;
> +}
> +
> +static int rtk_usb3_set_parameter_show(struct seq_file *s, void
> *unused)
> +{
> + struct rtk_usb_phy *rtk_phy = s->private;
> + const struct file *file = s->file;
> + const char *file_name = file_dentry(file)->d_iname;
> + struct dentry *p_dentry = file_dentry(file)->d_parent;
> + const char *phy_dir_name = p_dentry->d_iname;
> + int ret, index;
> + struct phy_data *phy_data;
> +
> + for (index = 0; index < rtk_phy->phyN; index++) {
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "phy%d", index);
> + if (strncmp(name, phy_dir_name, strlen(name)) == 0) {
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[index];
> + break;
> + }
> + }
> + if (!phy_data) {
> + dev_err(rtk_phy->dev,
> + "%s: No phy_data for %s/%s\n",
> + __func__, phy_dir_name,
> file_name);
> + return -EINVAL;
> + }
> +
> + ret = __get_parameter_at_page(s, rtk_phy, phy_data-
> >parameter, file_name);
> + if (ret < 0)
> + return ret;
> +
> + seq_puts(s, "Set phy parameter by following command\n");
> + seq_printf(s, "echo \"value\" > %s/%s\n",
> + phy_dir_name, file_name);
> +
> + return 0;
> +}
> +
> +static int rtk_usb3_set_parameter_open(struct inode *inode, struct
> file *file)
> +{
> + return single_open(file, rtk_usb3_set_parameter_show, inode-
> >i_private);
> +}
> +
> +static ssize_t rtk_usb3_set_parameter_write(struct file *file,
> + const char __user *ubuf, size_t count, loff_t *ppos)
> +{
> + const char *file_name = file_dentry(file)->d_iname;
> + struct dentry *p_dentry = file_dentry(file)->d_parent;
> + const char *phy_dir_name = p_dentry->d_iname;
> + struct seq_file *s = file->private_data;
> + struct rtk_usb_phy *rtk_phy = s->private;
> + struct reg_addr *regAddr;
> + struct phy_data *phy_data;
> + int ret = 0;
> + char buffer[40] = {0};
> + int index;
> +
> + if (copy_from_user(&buffer, ubuf,
> + min_t(size_t, sizeof(buffer) - 1, count)))
> + return -EFAULT;
> +
> + for (index = 0; index < rtk_phy->phyN; index++) {
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "phy%d", index);
> + if (strncmp(name, phy_dir_name, strlen(name)) == 0) {
> + regAddr = &((struct reg_addr *)rtk_phy-
> >reg_addr)[index];
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[index];
> + break;
> + }
> + }
> + if (!regAddr) {
> + dev_err(rtk_phy->dev,
> + "%s: No regAddr for %s/%s\n",
> + __func__, phy_dir_name,
> file_name);
> + return -EINVAL;
> + }
> + if (!phy_data) {
> + dev_err(rtk_phy->dev,
> + "%s: No phy_data for %s/%s\n",
> + __func__, phy_dir_name,
> file_name);
> + return -EINVAL;
> + }
> +
> + ret = __set_parameter_at_page(rtk_phy, regAddr, phy_data,
> + phy_data->parameter, file_name, buffer);
> + if (ret < 0)
> + return ret;
> +
> + return count;
> +}
> +
> +static const struct file_operations rtk_usb3_set_parameter_fops = {
> + .open = rtk_usb3_set_parameter_open,
> + .write = rtk_usb3_set_parameter_write,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
> +
> +static int rtk_usb3_toggle_show(struct seq_file *s, void *unused)
> +{
> + struct rtk_usb_phy *rtk_phy = s->private;
> + struct phy_data *phy_data;
> + int i;
> +
> + for (i = 0; i < rtk_phy->phyN; i++) {
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[i];
> + seq_printf(s, "Now phy#%d do_toggle is %s.\n",
> + i, phy_data-
> >do_toggle?"Enable":"Disable");
> + }
> + seq_puts(s, "ehco 1 to enable toggle phy parameter.\n");
> +
> + return 0;
> +}
> +
> +static int rtk_usb3_toggle_open(struct inode *inode, struct file
> *file)
> +{
> + return single_open(file, rtk_usb3_toggle_show, inode-
> >i_private);
> +}
> +
> +static ssize_t rtk_usb3_toggle_write(struct file *file,
> + const char __user *ubuf, size_t count, loff_t *ppos)
> +{
> + struct seq_file *s = file->private_data;
> + struct rtk_usb_phy *rtk_phy = s->private;
> + char buf[32];
> + struct phy_data *phy_data;
> + bool enable = false;
> + int i;
> +
> + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1,
> count)))
> + return -EFAULT;
> +
> + if (!strncmp(buf, "1", 1))
> + enable = true;
> +
> + for (i = 0; i < rtk_phy->phyN; i++) {
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[i];
> + phy_data->do_toggle = enable;
> + dev_info(rtk_phy->dev, "Set phy#%d do_toggle is
> %s.\n",
> + i, phy_data-
> >do_toggle?"Enable":"Disable");
> + }
> +
> + return count;
> +}
> +
> +static const struct file_operations rtk_usb3_toggle_fops = {
> + .open = rtk_usb3_toggle_open,
> + .write = rtk_usb3_toggle_write,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
> +
> +static int create_debug_set_parameter_files(struct rtk_usb_phy
> *rtk_phy,
> + struct dentry *phy_dir, size_t addr_size)
> +{
> + int i;
> +
> + for (i = 0; i < addr_size; i++) {
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "%02x",
> ARRAY_INDEX_MAP_PHY_ADDR(i));
> +
> + if (!debugfs_create_file(name, 0644,
> + phy_dir, rtk_phy,
> + &rtk_usb3_set_parameter_fops))
> + dev_err(rtk_phy->dev,
> + "%s Error create file %s fail",
> + name, __func__);
> + }
> +
> + return 0;
> +}
> +
> +static inline void create_debug_files(struct rtk_usb_phy *rtk_phy)
> +{
> + struct dentry *phy_debug_root = NULL;
> + struct dentry *set_parameter_dir = NULL;
> +
> + phy_debug_root = create_phy_debug_root();
> +
> + if (!phy_debug_root) {
> + dev_err(rtk_phy->dev, "%s Error phy_debug_root is
> NULL",
> + __func__);
> + return;
> + }
> + rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy-
> >dev),
> + phy_debug_root);
> + if (!rtk_phy->debug_dir) {
> + dev_err(rtk_phy->dev, "%s Error debug_dir is NULL",
> __func__);
> + return;
> + }
> +
> + if (!debugfs_create_file("parameter", 0444,
> + rtk_phy->debug_dir, rtk_phy,
> + &rtk_usb3_parameter_fops))
> + goto file_error;
> +
> + set_parameter_dir = debugfs_create_dir("set_parameter",
> + rtk_phy->debug_dir);
> + if (set_parameter_dir) {
> + int index, ret;
> +
> + for (index = 0; index < rtk_phy->phyN; index++) {
> + struct dentry *phy_dir;
> + struct phy_data *phy_data;
> + size_t sz = 30;
> + char name[30] = {0};
> +
> + snprintf(name, sz, "phy%d", index);
> +
> + phy_data = &((struct phy_data *)rtk_phy-
> >phy_data)[index];
> +
> + phy_dir = debugfs_create_dir(name,
> set_parameter_dir);
> + if (!phy_dir) {
> + dev_err(rtk_phy->dev,
> + "%s Error create folder
> %s fail\n",
> + name, __func__);
> + goto file_error;
> + }
> +
> + ret =
> create_debug_set_parameter_files(rtk_phy, phy_dir,
> + phy_data->size);
> + if (ret < 0) {
> + dev_err(rtk_phy->dev,
> + "%s Error create files
> fail\n",
> + __func__);
> + goto file_error;
> + }
> + }
> + }
> +
> + if (!debugfs_create_file("toggle", 0644, rtk_phy->debug_dir,
> rtk_phy,
> + &rtk_usb3_toggle_fops))
> + goto file_error;
> +
> + return;
> +
> +file_error:
> + debugfs_remove_recursive(rtk_phy->debug_dir);
> +}
> +
> +static inline void remove_debug_files(struct rtk_usb_phy *rtk_phy)
> +{
> + debugfs_remove_recursive(rtk_phy->debug_dir);
> +}
> +#else
> +static inline void create_debug_files(struct rtk_usb_phy *rtk_phy) {
> }
> +static inline void remove_debug_files(struct rtk_usb_phy *rtk_phy) {
> }
> +#endif /* CONFIG_DEBUG_FS */
> +
> +static int __get_phy_parameter_by_efuse(struct rtk_usb_phy *rtk_phy,
> + struct phy_data *phy_data, int index)
> +{
> + u8 value = 0;
> + struct nvmem_cell *cell;
> +
> + if (!phy_data->check_efuse)
> + goto out;
> +
> + cell = nvmem_cell_get(rtk_phy->dev,
> "usb_u3_tx_lfps_swing_trim");
> + if (IS_ERR(cell)) {
> + dev_warn(rtk_phy->dev,
> + "%s failed to get
> usb_u3_tx_lfps_swing_trim: %ld\n",
> + __func__, PTR_ERR(cell));
> + } else {
> + unsigned char *buf;
> + size_t buf_size;
> +
> + buf = nvmem_cell_read(cell, &buf_size);
> +
> + value = buf[0] & USB_U3_TX_LFPS_SWING_TRIM_MASK;
> +
> + dev_dbg(rtk_phy->dev,
> + "phy index=%d buf=0x%x buf_size=%d
> value=0x%x\n",
> + index, buf[0], (int)buf_size, value);
> + kfree(buf);
> + nvmem_cell_put(cell);
> + }
> +
> + if ((value > 0) && (value < 0x8))
> + phy_data->efuse_usb_u3_tx_lfps_swing_trim = 0x8;
> + else
> + phy_data->efuse_usb_u3_tx_lfps_swing_trim =
> (u8)value;
> +
> + dev_dbg(rtk_phy->dev, "Get Efuse
> usb_u3_tx_lfps_swing_trim=0x%x (value=0x%x)\n",
> + phy_data->efuse_usb_u3_tx_lfps_swing_trim,
> value);
> +
> +out:
> + return 0;
> +}
> +
> +static int __get_phy_parameter_v1(struct device *dev, struct
> phy_data *phy_data,
> + struct device_node *sub_node)
> +{
> + struct phy_parameter *phy_parameter;
> + int revision, i, ret = 0;
> + u8 *addr;
> + u16 *data;
> +
> + ret = of_property_read_u32_index(sub_node, "realtek,phy-data-
> size", 0,
> + &phy_data->size);
> + if (ret)
> + goto out;
> +
> + phy_data->parameter = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) * phy_data->size,
> + GFP_KERNEL);
> + if (!phy_data->parameter)
> + return -ENOMEM;
> +
> + addr = kcalloc(phy_data->size, sizeof(u8), GFP_KERNEL);
> + if (!addr) {
> + kfree(phy_data->parameter);
> + phy_data->parameter = NULL;
> + return -ENOMEM;
> + }
> +
> + data = kcalloc(phy_data->size, sizeof(u16), GFP_KERNEL);
> + if (!data) {
> + kfree(phy_data->parameter);
> + kfree(addr);
> + phy_data->parameter = NULL;
> + return -ENOMEM;
> + }
> + ret = of_property_read_u8_array(sub_node, "realtek,phy-data-
> addr",
> + addr, phy_data->size);
> + if (ret)
> + goto out;
> +
> + revision = __get_chip_revision();
> + dev_dbg(dev, "%s: Chip revision is %x\n", __func__,
> revision);
> +
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + char phy_data_revision[32] = {0};
> +
> + snprintf(phy_data_revision, 21, "realtek,phy-data-
> %X",
> + revision);
> + ret = of_property_read_u16_array(sub_node,
> + phy_data_revision,
> + data, phy_data->size);
> + if (!ret) {
> + dev_dbg(dev, "%s load %s parameter\n",
> + __func__, phy_data_revision);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> + }
> +
> + /* For old device tree */
> + if (ret) {
> + ret = of_property_read_u16_array(sub_node,
> + "realtek,phy-data-revA",
> + data, phy_data->size);
> + if (ret)
> + goto out;
> + else
> + dev_info(dev, "%s load parameter\n",
> __func__);
> + }
> +
> + phy_parameter = phy_data->parameter;
> +
> + for (i = 0; i < phy_data->size; i++) {
> + (phy_parameter + i)->addr = *(addr + i);
> + (phy_parameter + i)->data = *(data + i);
> + dev_dbg(dev, "%s i=%d addr=0x%x data=0x%x\n",
> + __func__, i, (phy_parameter + i)->addr,
> + (phy_parameter + i)->data);
> + }
> +
> +out:
> + kfree(addr);
> + kfree(data);
> +
> + return ret;
> +}
> +
> +static int __get_phy_parameter_v2(struct device *dev, struct
> phy_data *phy_data,
> + struct device_node *sub_node)
> +{
> + struct phy_parameter *phy_parameter;
> + int revision, i, ret = 0;
> + int data_size, num_cells = 2;
> + char phy_data_revision[32] = {0};
> +
> + ret = of_property_read_u32_index(sub_node, "realtek,phy-data-
> size", 0,
> + &phy_data->size);
> + if (ret)
> + goto out;
> +
> + phy_data->parameter = devm_kzalloc(dev,
> + sizeof(struct phy_parameter) * phy_data->size,
> + GFP_KERNEL);
> + if (!phy_data->parameter)
> + return -ENOMEM;
> +
> + revision = __get_chip_revision();
> + dev_dbg(dev, "%s: Chip revision is %x\n", __func__,
> revision);
> +
> + while (revision >= DEFAULT_CHIP_REVISION) {
> + snprintf(phy_data_revision, 21, "realtek,phy-data-
> %X",
> + revision);
> + if (of_get_property(sub_node, phy_data_revision,
> &data_size)) {
> + dev_dbg(dev, "%s load %s parameter
> (data_size=%d)\n",
> + __func__, phy_data_revision,
> data_size);
> + break;
> + }
> + revision--;
> + if ((revision & 0xFF) > 0xF)
> + revision = (revision & 0xF00) + 0xF;
> +
> + data_size = 0;
> + ret = 0;
> + }
> +
> + phy_parameter = phy_data->parameter;
> + for (i = 0; i < phy_data->size; i++)
> + (phy_parameter + i)->addr = 0xFF;
> +
> + data_size = data_size / (sizeof(u32) * num_cells);
> + for (i = 0; i < data_size; i++) {
> + struct phy_parameter *parameter;
> + u32 addr, data;
> + int offset, index;
> +
> + offset = i * num_cells;
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset, &addr);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, addr);
> + break;
> + }
> +
> + ret = of_property_read_u32_index(sub_node,
> phy_data_revision,
> + offset + 1, &data);
> + if (ret) {
> + dev_err(dev, "ERROR: To get %s i=%d
> addr=0x%x\n",
> + phy_data_revision, i, data);
> + break;
> + }
> +
> + index = PHY_ADDR_MAP_ARRAY_INDEX(addr);
> + parameter = (phy_parameter + index);
> + parameter->addr = (u8)addr;
> + parameter->data = (u16)data;
> +
> + dev_dbg(dev, "%s index=%d addr=0x%x data=0x%x\n",
> + phy_data_revision, index,
> + parameter->addr, parameter->data);
> + }
> +
> +out:
> + return ret;
> +}
> +
> +static int rtk_usb3phy_probe(struct platform_device *pdev)
> +{
> + struct rtk_usb_phy *rtk_phy;
> + struct device *dev = &pdev->dev;
> + int i, ret, phyN;
> +
> + rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
> + if (!rtk_phy)
> + return -ENOMEM;
> +
> + rtk_phy->dev = &pdev->dev;
> + rtk_phy->phy.dev = rtk_phy->dev;
> + rtk_phy->phy.label = RTK_USB3PHY_NAME;
> + rtk_phy->phy.init = rtk_usb_phy_init;
> + rtk_phy->phy.shutdown = rtk_usb_phyhutdown;
> + rtk_phy->phy.notify_port_status =
> rtk_usb_phy_notify_port_status;
> +
> + if (!dev->of_node) {
> + dev_err(dev, "%s %d No device node\n", __func__,
> __LINE__);
> + ret = -ENODEV;
> + goto err;
> + }
> +
> + rtk_phy->usb_regs = syscon_regmap_lookup_by_phandle(dev-
> >of_node, "realtek,usb");
> + if (IS_ERR(rtk_phy->usb_regs)) {
> + dev_info(dev, "%s: DTS no support usb regs syscon\n",
> __func__);
> + rtk_phy->usb_regs = NULL;
> + }
> +
> + rtk_phy->mac_regs = syscon_regmap_lookup_by_phandle(dev-
> >of_node, "realtek,mac");
> + if (IS_ERR(rtk_phy->mac_regs)) {
> + dev_info(dev, "%s: DTS no support mac regs syscon\n",
> __func__);
> + rtk_phy->mac_regs = NULL;
> + }
> +
> + rtk_phy->usb_ctrl_regs = syscon_regmap_lookup_by_phandle(dev-
> >of_node, "realtek,usb_ctrl");
> + if (IS_ERR(rtk_phy->usb_ctrl_regs)) {
> + dev_info(dev, "%s: DTS no support usb_ctrl regs
> syscon\n", __func__);
> + rtk_phy->usb_ctrl_regs = NULL;
> + }
> +
> + ret = of_property_read_u32_index(dev->of_node,
> "realtek,phyN", 0,
> + &phyN);
> + if (ret)
> + goto err;
> +
> + rtk_phy->phyN = phyN;
> +
> + rtk_phy->reg_addr = devm_kzalloc(dev,
> + sizeof(struct reg_addr) * phyN, GFP_KERNEL);
> + if (!rtk_phy->reg_addr)
> + return -ENOMEM;
> +
> + rtk_phy->phy_data = devm_kzalloc(dev,
> + sizeof(struct phy_data) * phyN, GFP_KERNEL);
> + if (!rtk_phy->phy_data)
> + return -ENOMEM;
> +
> + for (i = 0; i < phyN; i++) {
> + struct reg_addr *addr =
> + &((struct reg_addr *)rtk_phy-
> >reg_addr)[i];
> + struct phy_data *phy_data =
> + &((struct phy_data *)rtk_phy-
> >phy_data)[i];
> +
> + char phy_name[5], phy_name_v2[10];
> + struct device_node *sub_node;
> +
> + addr->reg_mdio_ctl = of_iomap(dev->of_node, i);
> + dev_dbg(dev, "%s %d #%d reg_mdio_ctl=%p\n",
> + __func__, __LINE__, i, addr-
> >reg_mdio_ctl);
> +
> + snprintf(phy_name, 5, "phy%d", i);
> +
> + sub_node = of_get_child_by_name(dev->of_node,
> phy_name);
> + if (sub_node) {
> + dev_dbg(dev, "%s %d: #%d Get phy data v1
> sub_node for %s\n",
> + __func__, __LINE__, i, phy_name);
> + ret = __get_phy_parameter_v1(dev, phy_data,
> sub_node);
> + if (ret)
> + goto err;
> + } else {
> + snprintf(phy_name_v2, 10, "phy%d_data", i);
> + sub_node = of_get_child_by_name(dev->of_node,
> phy_name_v2);
> + if (sub_node) {
> + dev_dbg(dev, "%s %d: #%d Get phy data
> v2 sub_node for %s\n",
> + __func__, __LINE__, i,
> phy_name_v2);
> + ret = __get_phy_parameter_v2(dev,
> phy_data, sub_node);
> + if (ret)
> + goto err;
> + }
> + }
> +
> + if (!sub_node) {
> + dev_err(dev, "%s %d No device sub node for
> %s\n",
> + __func__, __LINE__, phy_name);
> + goto err;
> + }
> +
> + if (of_property_read_bool(sub_node, "realtek,do-
> toggle-once"))
> + phy_data->do_toggle_once = true;
> + else
> + phy_data->do_toggle_once = false;
> +
> + if (of_property_read_bool(sub_node, "realtek,do-
> toggle"))
> + phy_data->do_toggle = true;
> + else
> + phy_data->do_toggle = false;
> +
> + if (of_property_read_bool(sub_node, "realtek,use-
> default-parameter"))
> + phy_data->use_default_parameter = true;
> + else
> + phy_data->use_default_parameter = false;
> +
> + if (of_property_read_bool(sub_node, "realtek,check-
> rx-front-end-offset"))
> + phy_data->check_rx_front_end_offset = true;
> + else
> + phy_data->check_rx_front_end_offset = false;
> +
> + if (of_property_read_bool(sub_node, "realtek,check-
> efuse"))
> + phy_data->check_efuse = true;
> + else
> + phy_data->check_efuse = false;
> +
> + __get_phy_parameter_by_efuse(rtk_phy, phy_data, i);
> + }
> +
> + platform_set_drvdata(pdev, rtk_phy);
> +
> + ret = usb_add_phy_dev(&rtk_phy->phy);
> + if (ret)
> + goto err;
> +
> + create_debug_files(rtk_phy);
> +
> +err:
> + dev_dbg(&pdev->dev, "Probe RTK USB 3.0 PHY (ret=%d)\n", ret);
> +
> + return ret;
> +}
> +
> +static int rtk_usb3phy_remove(struct platform_device *pdev)
> +{
> + struct rtk_usb_phy *rtk_phy = platform_get_drvdata(pdev);
> +
> + remove_debug_files(rtk_phy);
> +
> + usb_remove_phy(&rtk_phy->phy);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_OF
> +static const struct of_device_id usbphy_rtk_dt_match[] = {
> + { .compatible = "realtek,usb3phy", },
> + { .compatible = "realtek,rtd-usb3phy", },
> + { .compatible = "realtek,rtd1295-usb3phy", },
> + { .compatible = "realtek,rtd1619-usb3phy", },
> + { .compatible = "realtek,rtd1319-usb3phy", },
> + { .compatible = "realtek,rtd1619b-usb3phy", },
> + { .compatible = "realtek,rtd1319d-usb3phy", },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
> +#endif
> +
> +static struct platform_driver rtk_usb3phy_driver = {
> + .probe = rtk_usb3phy_probe,
> + .remove = rtk_usb3phy_remove,
> + .driver = {
> + .name = RTK_USB3PHY_NAME,
> + .owner = THIS_MODULE,
> + .of_match_table = of_match_ptr(usbphy_rtk_dt_match),
> + },
> +};
> +
> +module_platform_driver(rtk_usb3phy_driver);
> +
> +MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:" RTK_USB3PHY_NAME);
> +MODULE_AUTHOR("Realtek Semiconductor Corporation");
> +MODULE_DESCRIPTION("RTK usb 3.0 phy driver");
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