// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2018, The Linux Foundation. All rights reserved. * * Inspired by dwc3-of-simple.c */ #include <linux/io.h> #include <linux/of.h> #include <linux/clk.h> #include <linux/irq.h> #include <linux/of_clk.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/extcon.h> #include <linux/interconnect.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/phy/phy.h> #include <linux/usb/of.h> #include <linux/reset.h> #include <linux/iopoll.h> #include <linux/usb/hcd.h> #include <linux/usb.h> #include "core.h" /* USB QSCRATCH Hardware registers */ #define QSCRATCH_HS_PHY_CTRL … #define UTMI_OTG_VBUS_VALID … #define SW_SESSVLD_SEL … #define QSCRATCH_SS_PHY_CTRL … #define LANE0_PWR_PRESENT … #define QSCRATCH_GENERAL_CFG … #define PIPE_UTMI_CLK_SEL … #define PIPE3_PHYSTATUS_SW … #define PIPE_UTMI_CLK_DIS … #define PWR_EVNT_LPM_IN_L2_MASK … #define PWR_EVNT_LPM_OUT_L2_MASK … #define SDM845_QSCRATCH_BASE_OFFSET … #define SDM845_QSCRATCH_SIZE … #define SDM845_DWC3_CORE_SIZE … /* Interconnect path bandwidths in MBps */ #define USB_MEMORY_AVG_HS_BW … #define USB_MEMORY_PEAK_HS_BW … #define USB_MEMORY_AVG_SS_BW … #define USB_MEMORY_PEAK_SS_BW … #define APPS_USB_AVG_BW … #define APPS_USB_PEAK_BW … /* Qualcomm SoCs with multiport support has up to 4 ports */ #define DWC3_QCOM_MAX_PORTS … static const u32 pwr_evnt_irq_stat_reg[DWC3_QCOM_MAX_PORTS] = …; struct dwc3_qcom_port { … }; struct dwc3_qcom { … }; static inline void dwc3_qcom_setbits(void __iomem *base, u32 offset, u32 val) { … } static inline void dwc3_qcom_clrbits(void __iomem *base, u32 offset, u32 val) { … } static void dwc3_qcom_vbus_override_enable(struct dwc3_qcom *qcom, bool enable) { … } static int dwc3_qcom_vbus_notifier(struct notifier_block *nb, unsigned long event, void *ptr) { … } static int dwc3_qcom_host_notifier(struct notifier_block *nb, unsigned long event, void *ptr) { … } static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom) { … } static int dwc3_qcom_interconnect_enable(struct dwc3_qcom *qcom) { … } static int dwc3_qcom_interconnect_disable(struct dwc3_qcom *qcom) { … } /** * dwc3_qcom_interconnect_init() - Get interconnect path handles * and set bandwidth. * @qcom: Pointer to the concerned usb core. * */ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom) { … } /** * dwc3_qcom_interconnect_exit() - Release interconnect path handles * @qcom: Pointer to the concerned usb core. * * This function is used to release interconnect path handle. */ static void dwc3_qcom_interconnect_exit(struct dwc3_qcom *qcom) { … } /* Only usable in contexts where the role can not change. */ static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom) { … } static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom, int port_index) { … } static void dwc3_qcom_enable_wakeup_irq(int irq, unsigned int polarity) { … } static void dwc3_qcom_disable_wakeup_irq(int irq) { … } static void dwc3_qcom_disable_port_interrupts(struct dwc3_qcom_port *port) { … } static void dwc3_qcom_enable_port_interrupts(struct dwc3_qcom_port *port) { … } static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom) { … } static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) { … } static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup) { … } static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup) { … } static irqreturn_t qcom_dwc3_resume_irq(int irq, void *data) { … } static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom) { … } static int dwc3_qcom_request_irq(struct dwc3_qcom *qcom, int irq, const char *name) { … } static int dwc3_qcom_setup_port_irq(struct platform_device *pdev, int port_index, bool is_multiport) { … } static int dwc3_qcom_find_num_ports(struct platform_device *pdev) { … } static int dwc3_qcom_setup_irq(struct platform_device *pdev) { … } static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) { … } static int dwc3_qcom_of_register_core(struct platform_device *pdev) { … } static int dwc3_qcom_probe(struct platform_device *pdev) { … } static void dwc3_qcom_remove(struct platform_device *pdev) { … } static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) { … } static int __maybe_unused dwc3_qcom_pm_resume(struct device *dev) { … } static int __maybe_unused dwc3_qcom_runtime_suspend(struct device *dev) { … } static int __maybe_unused dwc3_qcom_runtime_resume(struct device *dev) { … } static const struct dev_pm_ops dwc3_qcom_dev_pm_ops = …; static const struct of_device_id dwc3_qcom_of_match[] = …; MODULE_DEVICE_TABLE(of, dwc3_qcom_of_match); static struct platform_driver dwc3_qcom_driver = …; module_platform_driver(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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