| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Frank Wang | 3569 | 37.73% | 5 | 12.50% |
| William Wu | 2839 | 30.01% | 6 | 15.00% |
| Peter Geis | 1373 | 14.52% | 7 | 17.50% |
| Samuel Holland | 703 | 7.43% | 6 | 15.00% |
| Meng Dongyang | 451 | 4.77% | 1 | 2.50% |
| Tobias Schramm | 450 | 4.76% | 1 | 2.50% |
| Baolin Wang | 19 | 0.20% | 1 | 2.50% |
| Chanwoo Choi | 9 | 0.10% | 2 | 5.00% |
| Gustavo A. R. Silva | 8 | 0.08% | 1 | 2.50% |
| Rob Herring | 7 | 0.07% | 2 | 5.00% |
| kbuild test robot | 7 | 0.07% | 1 | 2.50% |
| Heiko Stübner | 6 | 0.06% | 1 | 2.50% |
| Arnd Bergmann | 5 | 0.05% | 1 | 2.50% |
| caihuoqing | 4 | 0.04% | 1 | 2.50% |
| Enric Balletbò i Serra | 3 | 0.03% | 1 | 2.50% |
| Colin Ian King | 3 | 0.03% | 1 | 2.50% |
| Thomas Gleixner | 2 | 0.02% | 1 | 2.50% |
| Christoph Müllner | 1 | 0.01% | 1 | 2.50% |
| Total | 9459 | 40 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Rockchip USB2.0 PHY with Innosilicon IP block driver * * Copyright (C) 2016 Fuzhou Rockchip Electronics Co., Ltd */ #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/extcon-provider.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/gpio/consumer.h> #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <linux/power_supply.h> #include <linux/regmap.h> #include <linux/mfd/syscon.h> #include <linux/usb/of.h> #include <linux/usb/otg.h> #define BIT_WRITEABLE_SHIFT 16 #define SCHEDULE_DELAY (60 * HZ) #define OTG_SCHEDULE_DELAY (2 * HZ) enum rockchip_usb2phy_port_id { USB2PHY_PORT_OTG, USB2PHY_PORT_HOST, USB2PHY_NUM_PORTS, }; enum rockchip_usb2phy_host_state { PHY_STATE_HS_ONLINE = 0, PHY_STATE_DISCONNECT = 1, PHY_STATE_CONNECT = 2, PHY_STATE_FS_LS_ONLINE = 4, }; /** * enum usb_chg_state - Different states involved in USB charger detection. * @USB_CHG_STATE_UNDEFINED: USB charger is not connected or detection * process is not yet started. * @USB_CHG_STATE_WAIT_FOR_DCD: Waiting for Data pins contact. * @USB_CHG_STATE_DCD_DONE: Data pin contact is detected. * @USB_CHG_STATE_PRIMARY_DONE: Primary detection is completed (Detects * between SDP and DCP/CDP). * @USB_CHG_STATE_SECONDARY_DONE: Secondary detection is completed (Detects * between DCP and CDP). * @USB_CHG_STATE_DETECTED: USB charger type is determined. */ enum usb_chg_state { USB_CHG_STATE_UNDEFINED = 0, USB_CHG_STATE_WAIT_FOR_DCD, USB_CHG_STATE_DCD_DONE, USB_CHG_STATE_PRIMARY_DONE, USB_CHG_STATE_SECONDARY_DONE, USB_CHG_STATE_DETECTED, }; static const unsigned int rockchip_usb2phy_extcon_cable[] = { EXTCON_USB, EXTCON_USB_HOST, EXTCON_CHG_USB_SDP, EXTCON_CHG_USB_CDP, EXTCON_CHG_USB_DCP, EXTCON_CHG_USB_SLOW, EXTCON_NONE, }; struct usb2phy_reg { unsigned int offset; unsigned int bitend; unsigned int bitstart; unsigned int disable; unsigned int enable; }; /** * struct rockchip_chg_det_reg - usb charger detect registers * @cp_det: charging port detected successfully. * @dcp_det: dedicated charging port detected successfully. * @dp_det: assert data pin connect successfully. * @idm_sink_en: open dm sink curren. * @idp_sink_en: open dp sink current. * @idp_src_en: open dm source current. * @rdm_pdwn_en: open dm pull down resistor. * @vdm_src_en: open dm voltage source. * @vdp_src_en: open dp voltage source. * @opmode: utmi operational mode. */ struct rockchip_chg_det_reg { struct usb2phy_reg cp_det; struct usb2phy_reg dcp_det; struct usb2phy_reg dp_det; struct usb2phy_reg idm_sink_en; struct usb2phy_reg idp_sink_en; struct usb2phy_reg idp_src_en; struct usb2phy_reg rdm_pdwn_en; struct usb2phy_reg vdm_src_en; struct usb2phy_reg vdp_src_en; struct usb2phy_reg opmode; }; /** * struct rockchip_usb2phy_port_cfg - usb-phy port configuration. * @phy_sus: phy suspend register. * @bvalid_det_en: vbus valid rise detection enable register. * @bvalid_det_st: vbus valid rise detection status register. * @bvalid_det_clr: vbus valid rise detection clear register. * @id_det_en: id detection enable register. * @id_det_st: id detection state register. * @id_det_clr: id detection clear register. * @ls_det_en: linestate detection enable register. * @ls_det_st: linestate detection state register. * @ls_det_clr: linestate detection clear register. * @utmi_avalid: utmi vbus avalid status register. * @utmi_bvalid: utmi vbus bvalid status register. * @utmi_id: utmi id state register. * @utmi_ls: utmi linestate state register. * @utmi_hstdet: utmi host disconnect register. */ struct rockchip_usb2phy_port_cfg { struct usb2phy_reg phy_sus; struct usb2phy_reg bvalid_det_en; struct usb2phy_reg bvalid_det_st; struct usb2phy_reg bvalid_det_clr; struct usb2phy_reg id_det_en; struct usb2phy_reg id_det_st; struct usb2phy_reg id_det_clr; struct usb2phy_reg ls_det_en; struct usb2phy_reg ls_det_st; struct usb2phy_reg ls_det_clr; struct usb2phy_reg utmi_avalid; struct usb2phy_reg utmi_bvalid; struct usb2phy_reg utmi_id; struct usb2phy_reg utmi_ls; struct usb2phy_reg utmi_hstdet; }; /** * struct rockchip_usb2phy_cfg - usb-phy configuration. * @reg: the address offset of grf for usb-phy config. * @num_ports: specify how many ports that the phy has. * @clkout_ctl: keep on/turn off output clk of phy. * @port_cfgs: usb-phy port configurations. * @chg_det: charger detection registers. */ struct rockchip_usb2phy_cfg { unsigned int reg; unsigned int num_ports; struct usb2phy_reg clkout_ctl; const struct rockchip_usb2phy_port_cfg port_cfgs[USB2PHY_NUM_PORTS]; const struct rockchip_chg_det_reg chg_det; }; /** * struct rockchip_usb2phy_port - usb-phy port data. * @phy: generic phy. * @port_id: flag for otg port or host port. * @suspended: phy suspended flag. * @vbus_attached: otg device vbus status. * @bvalid_irq: IRQ number assigned for vbus valid rise detection. * @id_irq: IRQ number assigned for ID pin detection. * @ls_irq: IRQ number assigned for linestate detection. * @otg_mux_irq: IRQ number which multiplex otg-id/otg-bvalid/linestate * irqs to one irq in otg-port. * @mutex: for register updating in sm_work. * @chg_work: charge detect work. * @otg_sm_work: OTG state machine work. * @sm_work: HOST state machine work. * @port_cfg: port register configuration, assigned by driver data. * @event_nb: hold event notification callback. * @state: define OTG enumeration states before device reset. * @mode: the dr_mode of the controller. */ struct rockchip_usb2phy_port { struct phy *phy; unsigned int port_id; bool suspended; bool vbus_attached; int bvalid_irq; int id_irq; int ls_irq; int otg_mux_irq; struct mutex mutex; struct delayed_work chg_work; struct delayed_work otg_sm_work; struct delayed_work sm_work; const struct rockchip_usb2phy_port_cfg *port_cfg; struct notifier_block event_nb; enum usb_otg_state state; enum usb_dr_mode mode; }; /** * struct rockchip_usb2phy - usb2.0 phy driver data. * @dev: pointer to device. * @grf: General Register Files regmap. * @usbgrf: USB General Register Files regmap. * @clk: clock struct of phy input clk. * @clk480m: clock struct of phy output clk. * @clk480m_hw: clock struct of phy output clk management. * @chg_state: states involved in USB charger detection. * @chg_type: USB charger types. * @dcd_retries: The retry count used to track Data contact * detection process. * @edev: extcon device for notification registration * @irq: muxed interrupt for single irq configuration * @phy_cfg: phy register configuration, assigned by driver data. * @ports: phy port instance. */ struct rockchip_usb2phy { struct device *dev; struct regmap *grf; struct regmap *usbgrf; struct clk *clk; struct clk *clk480m; struct clk_hw clk480m_hw; enum usb_chg_state chg_state; enum power_supply_type chg_type; u8 dcd_retries; struct extcon_dev *edev; int irq; const struct rockchip_usb2phy_cfg *phy_cfg; struct rockchip_usb2phy_port ports[USB2PHY_NUM_PORTS]; }; static inline struct regmap *get_reg_base(struct rockchip_usb2phy *rphy) { return rphy->usbgrf == NULL ? rphy->grf : rphy->usbgrf; } static inline int property_enable(struct regmap *base, const struct usb2phy_reg *reg, bool en) { unsigned int val, mask, tmp; tmp = en ? reg->enable : reg->disable; mask = GENMASK(reg->bitend, reg->bitstart); val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT); return regmap_write(base, reg->offset, val); } static inline bool property_enabled(struct regmap *base, const struct usb2phy_reg *reg) { int ret; unsigned int tmp, orig; unsigned int mask = GENMASK(reg->bitend, reg->bitstart); ret = regmap_read(base, reg->offset, &orig); if (ret) return false; tmp = (orig & mask) >> reg->bitstart; return tmp != reg->disable; } static int rockchip_usb2phy_clk480m_prepare(struct clk_hw *hw) { struct rockchip_usb2phy *rphy = container_of(hw, struct rockchip_usb2phy, clk480m_hw); struct regmap *base = get_reg_base(rphy); int ret; /* turn on 480m clk output if it is off */ if (!property_enabled(base, &rphy->phy_cfg->clkout_ctl)) { ret = property_enable(base, &rphy->phy_cfg->clkout_ctl, true); if (ret) return ret; /* waiting for the clk become stable */ usleep_range(1200, 1300); } return 0; } static void rockchip_usb2phy_clk480m_unprepare(struct clk_hw *hw) { struct rockchip_usb2phy *rphy = container_of(hw, struct rockchip_usb2phy, clk480m_hw); struct regmap *base = get_reg_base(rphy); /* turn off 480m clk output */ property_enable(base, &rphy->phy_cfg->clkout_ctl, false); } static int rockchip_usb2phy_clk480m_prepared(struct clk_hw *hw) { struct rockchip_usb2phy *rphy = container_of(hw, struct rockchip_usb2phy, clk480m_hw); struct regmap *base = get_reg_base(rphy); return property_enabled(base, &rphy->phy_cfg->clkout_ctl); } static unsigned long rockchip_usb2phy_clk480m_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { return 480000000; } static const struct clk_ops rockchip_usb2phy_clkout_ops = { .prepare = rockchip_usb2phy_clk480m_prepare, .unprepare = rockchip_usb2phy_clk480m_unprepare, .is_prepared = rockchip_usb2phy_clk480m_prepared, .recalc_rate = rockchip_usb2phy_clk480m_recalc_rate, }; static void rockchip_usb2phy_clk480m_unregister(void *data) { struct rockchip_usb2phy *rphy = data; of_clk_del_provider(rphy->dev->of_node); clk_unregister(rphy->clk480m); } static int rockchip_usb2phy_clk480m_register(struct rockchip_usb2phy *rphy) { struct device_node *node = rphy->dev->of_node; struct clk_init_data init; const char *clk_name; int ret = 0; init.flags = 0; init.name = "clk_usbphy_480m"; init.ops = &rockchip_usb2phy_clkout_ops; /* optional override of the clockname */ of_property_read_string(node, "clock-output-names", &init.name); if (rphy->clk) { clk_name = __clk_get_name(rphy->clk); init.parent_names = &clk_name; init.num_parents = 1; } else { init.parent_names = NULL; init.num_parents = 0; } rphy->clk480m_hw.init = &init; /* register the clock */ rphy->clk480m = clk_register(rphy->dev, &rphy->clk480m_hw); if (IS_ERR(rphy->clk480m)) { ret = PTR_ERR(rphy->clk480m); goto err_ret; } ret = of_clk_add_provider(node, of_clk_src_simple_get, rphy->clk480m); if (ret < 0) goto err_clk_provider; return devm_add_action_or_reset(rphy->dev, rockchip_usb2phy_clk480m_unregister, rphy); err_clk_provider: clk_unregister(rphy->clk480m); err_ret: return ret; } static int rockchip_usb2phy_extcon_register(struct rockchip_usb2phy *rphy) { int ret; struct device_node *node = rphy->dev->of_node; struct extcon_dev *edev; if (of_property_read_bool(node, "extcon")) { edev = extcon_get_edev_by_phandle(rphy->dev, 0); if (IS_ERR(edev)) { if (PTR_ERR(edev) != -EPROBE_DEFER) dev_err(rphy->dev, "Invalid or missing extcon\n"); return PTR_ERR(edev); } } else { /* Initialize extcon device */ edev = devm_extcon_dev_allocate(rphy->dev, rockchip_usb2phy_extcon_cable); if (IS_ERR(edev)) return -ENOMEM; ret = devm_extcon_dev_register(rphy->dev, edev); if (ret) { dev_err(rphy->dev, "failed to register extcon device\n"); return ret; } } rphy->edev = edev; return 0; } static int rockchip_usb2phy_init(struct phy *phy) { struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy); struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent); int ret = 0; mutex_lock(&rport->mutex); if (rport->port_id == USB2PHY_PORT_OTG) { if (rport->mode != USB_DR_MODE_HOST && rport->mode != USB_DR_MODE_UNKNOWN) { /* clear bvalid status and enable bvalid detect irq */ ret = property_enable(rphy->grf, &rport->port_cfg->bvalid_det_clr, true); if (ret) goto out; ret = property_enable(rphy->grf, &rport->port_cfg->bvalid_det_en, true); if (ret) goto out; /* clear id status and enable id detect irq */ ret = property_enable(rphy->grf, &rport->port_cfg->id_det_clr, true); if (ret) goto out; ret = property_enable(rphy->grf, &rport->port_cfg->id_det_en, true); if (ret) goto out; schedule_delayed_work(&rport->otg_sm_work, OTG_SCHEDULE_DELAY * 3); } else { /* If OTG works in host only mode, do nothing. */ dev_dbg(&rport->phy->dev, "mode %d\n", rport->mode); } } else if (rport->port_id == USB2PHY_PORT_HOST) { /* clear linestate and enable linestate detect irq */ ret = property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true); if (ret) goto out; ret = property_enable(rphy->grf, &rport->port_cfg->ls_det_en, true); if (ret) goto out; schedule_delayed_work(&rport->sm_work, SCHEDULE_DELAY); } out: mutex_unlock(&rport->mutex); return ret; } static int rockchip_usb2phy_power_on(struct phy *phy) { struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy); struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent); struct regmap *base = get_reg_base(rphy); int ret; dev_dbg(&rport->phy->dev, "port power on\n"); if (!rport->suspended) return 0; ret = clk_prepare_enable(rphy->clk480m); if (ret) return ret; ret = property_enable(base, &rport->port_cfg->phy_sus, false); if (ret) return ret; /* waiting for the utmi_clk to become stable */ usleep_range(1500, 2000); rport->suspended = false; return 0; } static int rockchip_usb2phy_power_off(struct phy *phy) { struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy); struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent); struct regmap *base = get_reg_base(rphy); int ret; dev_dbg(&rport->phy->dev, "port power off\n"); if (rport->suspended) return 0; ret = property_enable(base, &rport->port_cfg->phy_sus, true); if (ret) return ret; rport->suspended = true; clk_disable_unprepare(rphy->clk480m); return 0; } static int rockchip_usb2phy_exit(struct phy *phy) { struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy); if (rport->port_id == USB2PHY_PORT_OTG && rport->mode != USB_DR_MODE_HOST && rport->mode != USB_DR_MODE_UNKNOWN) { cancel_delayed_work_sync(&rport->otg_sm_work); cancel_delayed_work_sync(&rport->chg_work); } else if (rport->port_id == USB2PHY_PORT_HOST) cancel_delayed_work_sync(&rport->sm_work); return 0; } static const struct phy_ops rockchip_usb2phy_ops = { .init = rockchip_usb2phy_init, .exit = rockchip_usb2phy_exit, .power_on = rockchip_usb2phy_power_on, .power_off = rockchip_usb2phy_power_off, .owner = THIS_MODULE, }; static void rockchip_usb2phy_otg_sm_work(struct work_struct *work) { struct rockchip_usb2phy_port *rport = container_of(work, struct rockchip_usb2phy_port, otg_sm_work.work); struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent); static unsigned int cable; unsigned long delay; bool vbus_attach, sch_work, notify_charger; vbus_attach = property_enabled(rphy->grf, &rport->port_cfg->utmi_bvalid); sch_work = false; notify_charger = false; delay = OTG_SCHEDULE_DELAY; dev_dbg(&rport->phy->dev, "%s otg sm work\n", usb_otg_state_string(rport->state)); switch (rport->state) { case OTG_STATE_UNDEFINED: rport->state = OTG_STATE_B_IDLE; if (!vbus_attach) rockchip_usb2phy_power_off(rport->phy); fallthrough; case OTG_STATE_B_IDLE: if (extcon_get_state(rphy->edev, EXTCON_USB_HOST) > 0) { dev_dbg(&rport->phy->dev, "usb otg host connect\n"); rport->state = OTG_STATE_A_HOST; rockchip_usb2phy_power_on(rport->phy); return; } else if (vbus_attach) { dev_dbg(&rport->phy->dev, "vbus_attach\n"); switch (rphy->chg_state) { case USB_CHG_STATE_UNDEFINED: schedule_delayed_work(&rport->chg_work, 0); return; case USB_CHG_STATE_DETECTED: switch (rphy->chg_type) { case POWER_SUPPLY_TYPE_USB: dev_dbg(&rport->phy->dev, "sdp cable is connected\n"); rockchip_usb2phy_power_on(rport->phy); rport->state = OTG_STATE_B_PERIPHERAL; notify_charger = true; sch_work = true; cable = EXTCON_CHG_USB_SDP; break; case POWER_SUPPLY_TYPE_USB_DCP: dev_dbg(&rport->phy->dev, "dcp cable is connected\n"); rockchip_usb2phy_power_off(rport->phy); notify_charger = true; sch_work = true; cable = EXTCON_CHG_USB_DCP; break; case POWER_SUPPLY_TYPE_USB_CDP: dev_dbg(&rport->phy->dev, "cdp cable is connected\n"); rockchip_usb2phy_power_on(rport->phy); rport->state = OTG_STATE_B_PERIPHERAL; notify_charger = true; sch_work = true; cable = EXTCON_CHG_USB_CDP; break; default: break; } break; default: break; } } else { notify_charger = true; rphy->chg_state = USB_CHG_STATE_UNDEFINED; rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN; } if (rport->vbus_attached != vbus_attach) { rport->vbus_attached = vbus_attach; if (notify_charger && rphy->edev) { extcon_set_state_sync(rphy->edev, cable, vbus_attach); if (cable == EXTCON_CHG_USB_SDP) extcon_set_state_sync(rphy->edev, EXTCON_USB, vbus_attach); } } break; case OTG_STATE_B_PERIPHERAL: if (!vbus_attach) { dev_dbg(&rport->phy->dev, "usb disconnect\n"); rphy->chg_state = USB_CHG_STATE_UNDEFINED; rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN; rport->state = OTG_STATE_B_IDLE; delay = 0; rockchip_usb2phy_power_off(rport->phy); } sch_work = true; break; case OTG_STATE_A_HOST: if (extcon_get_state(rphy->edev, EXTCON_USB_HOST) == 0) { dev_dbg(&rport->phy->dev, "usb otg host disconnect\n"); rport->state = OTG_STATE_B_IDLE; rockchip_usb2phy_power_off(rport->phy); } break; default: break; } if (sch_work) schedule_delayed_work(&rport->otg_sm_work, delay); } static const char *chg_to_string(enum power_supply_type chg_type) { switch (chg_type) { case POWER_SUPPLY_TYPE_USB: return "USB_SDP_CHARGER"; case POWER_SUPPLY_TYPE_USB_DCP: return "USB_DCP_CHARGER"; case POWER_SUPPLY_TYPE_USB_CDP: return "USB_CDP_CHARGER"; default: return "INVALID_CHARGER"; } } static void rockchip_chg_enable_dcd(struct rockchip_usb2phy *rphy, bool en) { struct regmap *base = get_reg_base(rphy); property_enable(base, &rphy->phy_cfg->chg_det.rdm_pdwn_en, en); property_enable(base, &rphy->phy_cfg->chg_det.idp_src_en, en); } static void rockchip_chg_enable_primary_det(struct rockchip_usb2phy *rphy, bool en) { struct regmap *base = get_reg_base(rphy); property_enable(base, &rphy->phy_cfg->chg_det.vdp_src_en, en); property_enable(base, &rphy->phy_cfg->chg_det.idm_sink_en, en); } static void rockchip_chg_enable_secondary_det(struct rockchip_usb2phy *rphy, bool en) { struct regmap *base = get_reg_base(rphy); property_enable(base, &rphy->phy_cfg->chg_det.vdm_src_en, en); property_enable(base, &rphy->phy_cfg->chg_det.idp_sink_en, en); } #define CHG_DCD_POLL_TIME (100 * HZ / 1000) #define CHG_DCD_MAX_RETRIES 6 #define CHG_PRIMARY_DET_TIME (40 * HZ / 1000) #define CHG_SECONDARY_DET_TIME (40 * HZ / 1000) static void rockchip_chg_detect_work(struct work_struct *work) { struct rockchip_usb2phy_port *rport = container_of(work, struct rockchip_usb2phy_port, chg_work.work); struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent); struct regmap *base = get_reg_base(rphy); bool is_dcd, tmout, vout; unsigned long delay; dev_dbg(&rport->phy->dev, "chg detection work state = %d\n", rphy->chg_state); switch (rphy->chg_state) { case USB_CHG_STATE_UNDEFINED: if (!rport->suspended) rockchip_usb2phy_power_off(rport->phy); /* put the controller in non-driving mode */ property_enable(base, &rphy->phy_cfg->chg_det.opmode, false); /* Start DCD processing stage 1 */ rockchip_chg_enable_dcd(rphy, true); rphy->chg_state = USB_CHG_STATE_WAIT_FOR_DCD; rphy->dcd_retries = 0; delay = CHG_DCD_POLL_TIME; break; case USB_CHG_STATE_WAIT_FOR_DCD: /* get data contact detection status */ is_dcd = property_enabled(rphy->grf, &rphy->phy_cfg->chg_det.dp_det); tmout = ++rphy->dcd_retries == CHG_DCD_MAX_RETRIES; /* stage 2 */ if (is_dcd || tmout) { /* stage 4 */ /* Turn off DCD circuitry */ rockchip_chg_enable_dcd(rphy, false); /* Voltage Source on DP, Probe on DM */ rockchip_chg_enable_primary_det(rphy, true); delay = CHG_PRIMARY_DET_TIME; rphy->chg_state = USB_CHG_STATE_DCD_DONE; } else { /* stage 3 */ delay = CHG_DCD_POLL_TIME; } break; case USB_CHG_STATE_DCD_DONE: vout = property_enabled(rphy->grf, &rphy->phy_cfg->chg_det.cp_det); rockchip_chg_enable_primary_det(rphy, false); if (vout) { /* Voltage Source on DM, Probe on DP */ rockchip_chg_enable_secondary_det(rphy, true); delay = CHG_SECONDARY_DET_TIME; rphy->chg_state = USB_CHG_STATE_PRIMARY_DONE; } else { if (rphy->dcd_retries == CHG_DCD_MAX_RETRIES) { /* floating charger found */ rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP; rphy->chg_state = USB_CHG_STATE_DETECTED; delay = 0; } else { rphy->chg_type = POWER_SUPPLY_TYPE_USB; rphy->chg_state = USB_CHG_STATE_DETECTED; delay = 0; } } break; case USB_CHG_STATE_PRIMARY_DONE: vout = property_enabled(rphy->grf, &rphy->phy_cfg->chg_det.dcp_det); /* Turn off voltage source */ rockchip_chg_enable_secondary_det(rphy, false); if (vout) rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP; else rphy->chg_type = POWER_SUPPLY_TYPE_USB_CDP; fallthrough; case USB_CHG_STATE_SECONDARY_DONE: rphy->chg_state = USB_CHG_STATE_DETECTED; fallthrough; case USB_CHG_STATE_DETECTED: /* put the controller in normal mode */ property_enable(base, &rphy->phy_cfg->chg_det.opmode, true); rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work); dev_dbg(&rport->phy->dev, "charger = %s\n", chg_to_string(rphy->chg_type)); return; default: return; } schedule_delayed_work(&rport->chg_work, delay); } /* * The function manage host-phy port state and suspend/resume phy port * to save power. * * we rely on utmi_linestate and utmi_hostdisconnect to identify whether * devices is disconnect or not. Besides, we do not need care it is FS/LS * disconnected or HS disconnected, actually, we just only need get the * device is disconnected at last through rearm the delayed work, * to suspend the phy port in _PHY_STATE_DISCONNECT_ case. * * NOTE: It may invoke *phy_powr_off or *phy_power_on which will invoke * some clk related APIs, so do not invoke it from interrupt context directly. */ static void rockchip_usb2phy_sm_work(struct work_struct *work) { struct rockchip_usb2phy_port *rport = container_of(work, struct rockchip_usb2phy_port, sm_work.work); struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent); unsigned int sh = rport->port_cfg->utmi_hstdet.bitend - rport->port_cfg->utmi_hstdet.bitstart + 1; unsigned int ul, uhd, state; unsigned int ul_mask, uhd_mask; int ret; mutex_lock(&rport->mutex); ret = regmap_read(rphy->grf, rport->port_cfg->utmi_ls.offset, &ul); if (ret < 0) goto next_schedule; ret = regmap_read(rphy->grf, rport->port_cfg->utmi_hstdet.offset, &uhd); if (ret < 0) goto next_schedule; uhd_mask = GENMASK(rport->port_cfg->utmi_hstdet.bitend, rport->port_cfg->utmi_hstdet.bitstart); ul_mask = GENMASK(rport->port_cfg->utmi_ls.bitend, rport->port_cfg->utmi_ls.bitstart); /* stitch on utmi_ls and utmi_hstdet as phy state */ state = ((uhd & uhd_mask) >> rport->port_cfg->utmi_hstdet.bitstart) | (((ul & ul_mask) >> rport->port_cfg->utmi_ls.bitstart) << sh); switch (state) { case PHY_STATE_HS_ONLINE: dev_dbg(&rport->phy->dev, "HS online\n"); break; case PHY_STATE_FS_LS_ONLINE: /* * For FS/LS device, the online state share with connect state * from utmi_ls and utmi_hstdet register, so we distinguish * them via suspended flag. * * Plus, there are two cases, one is D- Line pull-up, and D+ * line pull-down, the state is 4; another is D+ line pull-up, * and D- line pull-down, the state is 2. */ if (!rport->suspended) { /* D- line pull-up, D+ line pull-down */ dev_dbg(&rport->phy->dev, "FS/LS online\n"); break; } fallthrough; case PHY_STATE_CONNECT: if (rport->suspended) { dev_dbg(&rport->phy->dev, "Connected\n"); rockchip_usb2phy_power_on(rport->phy); rport->suspended = false; } else { /* D+ line pull-up, D- line pull-down */ dev_dbg(&rport->phy->dev, "FS/LS online\n"); } break; case PHY_STATE_DISCONNECT: if (!rport->suspended) { dev_dbg(&rport->phy->dev, "Disconnected\n"); rockchip_usb2phy_power_off(rport->phy); rport->suspended = true; } /* * activate the linestate detection to get the next device * plug-in irq. */ property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true); property_enable(rphy->grf, &rport->port_cfg->ls_det_en, true); /* * we don't need to rearm the delayed work when the phy port * is suspended. */ mutex_unlock(&rport->mutex); return; default: dev_dbg(&rport->phy->dev, "unknown phy state\n"); break; } next_schedule: mutex_unlock(&rport->mutex); schedule_delayed_work(&rport->sm_work, SCHEDULE_DELAY); } static irqreturn_t rockchip_usb2phy_linestate_irq(int irq, void *data) { struct rockchip_usb2phy_port *rport = data; struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent); if (!property_enabled(rphy->grf, &rport->port_cfg->ls_det_st)) return IRQ_NONE; mutex_lock(&rport->mutex); /* disable linestate detect irq and clear its status */ property_enable(rphy->grf, &rport->port_cfg->ls_det_en, false); property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true); mutex_unlock(&rport->mutex); /* * In this case for host phy port, a new device is plugged in, * meanwhile, if the phy port is suspended, we need rearm the work to * resume it and mange its states; otherwise, we do nothing about that. */ if (rport->suspended && rport->port_id == USB2PHY_PORT_HOST) rockchip_usb2phy_sm_work(&rport->sm_work.work); return IRQ_HANDLED; } static irqreturn_t rockchip_usb2phy_bvalid_irq(int irq, void *data) { struct rockchip_usb2phy_port *rport = data; struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent); if (!property_enabled(rphy->grf, &rport->port_cfg->bvalid_det_st)) return IRQ_NONE; /* clear bvalid detect irq pending status */ property_enable(rphy->grf, &rport->port_cfg->bvalid_det_clr, true); rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work); return IRQ_HANDLED; } static irqreturn_t rockchip_usb2phy_id_irq(int irq, void *data) { struct rockchip_usb2phy_port *rport = data; struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent); bool id; if (!property_enabled(rphy->grf, &rport->port_cfg->id_det_st)) return IRQ_NONE; /* clear id detect irq pending status */ property_enable(rphy->grf, &rport->port_cfg->id_det_clr, true); id = property_enabled(rphy->grf, &rport->port_cfg->utmi_id); extcon_set_state_sync(rphy->edev, EXTCON_USB_HOST, !id); return IRQ_HANDLED; } static irqreturn_t rockchip_usb2phy_otg_mux_irq(int irq, void *data) { irqreturn_t ret = IRQ_NONE; ret |= rockchip_usb2phy_bvalid_irq(irq, data); ret |= rockchip_usb2phy_id_irq(irq, data); return ret; } static irqreturn_t rockchip_usb2phy_irq(int irq, void *data) { struct rockchip_usb2phy *rphy = data; struct rockchip_usb2phy_port *rport; irqreturn_t ret = IRQ_NONE; unsigned int index; for (index = 0; index < rphy->phy_cfg->num_ports; index++) { rport = &rphy->ports[index]; if (!rport->phy) continue; switch (rport->port_id) { case USB2PHY_PORT_OTG: if (rport->mode != USB_DR_MODE_HOST && rport->mode != USB_DR_MODE_UNKNOWN) ret |= rockchip_usb2phy_otg_mux_irq(irq, rport); break; case USB2PHY_PORT_HOST: ret |= rockchip_usb2phy_linestate_irq(irq, rport); break; } } return ret; } static int rockchip_usb2phy_port_irq_init(struct rockchip_usb2phy *rphy, struct rockchip_usb2phy_port *rport, struct device_node *child_np) { int ret; /* * If the usb2 phy used combined irq for otg and host port, * don't need to init otg and host port irq separately. */ if (rphy->irq > 0) return 0; switch (rport->port_id) { case USB2PHY_PORT_HOST: rport->ls_irq = of_irq_get_byname(child_np, "linestate"); if (rport->ls_irq < 0) { dev_err(rphy->dev, "no linestate irq provided\n"); return rport->ls_irq; } ret = devm_request_threaded_irq(rphy->dev, rport->ls_irq, NULL, rockchip_usb2phy_linestate_irq, IRQF_ONESHOT, "rockchip_usb2phy", rport); if (ret) { dev_err(rphy->dev, "failed to request linestate irq handle\n"); return ret; } break; case USB2PHY_PORT_OTG: /* * Some SoCs use one interrupt with otg-id/otg-bvalid/linestate * interrupts muxed together, so probe the otg-mux interrupt first, * if not found, then look for the regular interrupts one by one. */ rport->otg_mux_irq = of_irq_get_byname(child_np, "otg-mux"); if (rport->otg_mux_irq > 0) { ret = devm_request_threaded_irq(rphy->dev, rport->otg_mux_irq, NULL, rockchip_usb2phy_otg_mux_irq, IRQF_ONESHOT, "rockchip_usb2phy_otg", rport); if (ret) { dev_err(rphy->dev, "failed to request otg-mux irq handle\n"); return ret; } } else { rport->bvalid_irq = of_irq_get_byname(child_np, "otg-bvalid"); if (rport->bvalid_irq < 0) { dev_err(rphy->dev, "no vbus valid irq provided\n"); ret = rport->bvalid_irq; return ret; } ret = devm_request_threaded_irq(rphy->dev, rport->bvalid_irq, NULL, rockchip_usb2phy_bvalid_irq, IRQF_ONESHOT, "rockchip_usb2phy_bvalid", rport); if (ret) { dev_err(rphy->dev, "failed to request otg-bvalid irq handle\n"); return ret; } rport->id_irq = of_irq_get_byname(child_np, "otg-id"); if (rport->id_irq < 0) { dev_err(rphy->dev, "no otg-id irq provided\n"); ret = rport->id_irq; return ret; } ret = devm_request_threaded_irq(rphy->dev, rport->id_irq, NULL, rockchip_usb2phy_id_irq, IRQF_ONESHOT, "rockchip_usb2phy_id", rport); if (ret) { dev_err(rphy->dev, "failed to request otg-id irq handle\n"); return ret; } } break; default: return -EINVAL; } return 0; } static int rockchip_usb2phy_host_port_init(struct rockchip_usb2phy *rphy, struct rockchip_usb2phy_port *rport, struct device_node *child_np) { int ret; rport->port_id = USB2PHY_PORT_HOST; rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_HOST]; rport->suspended = true; mutex_init(&rport->mutex); INIT_DELAYED_WORK(&rport->sm_work, rockchip_usb2phy_sm_work); ret = rockchip_usb2phy_port_irq_init(rphy, rport, child_np); if (ret) { dev_err(rphy->dev, "failed to setup host irq\n"); return ret; } return 0; } static int rockchip_otg_event(struct notifier_block *nb, unsigned long event, void *ptr) { struct rockchip_usb2phy_port *rport = container_of(nb, struct rockchip_usb2phy_port, event_nb); schedule_delayed_work(&rport->otg_sm_work, OTG_SCHEDULE_DELAY); return NOTIFY_DONE; } static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy, struct rockchip_usb2phy_port *rport, struct device_node *child_np) { int ret, id; rport->port_id = USB2PHY_PORT_OTG; rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_OTG]; rport->state = OTG_STATE_UNDEFINED; /* * set suspended flag to true, but actually don't * put phy in suspend mode, it aims to enable usb * phy and clock in power_on() called by usb controller * driver during probe. */ rport->suspended = true; rport->vbus_attached = false; mutex_init(&rport->mutex); rport->mode = of_usb_get_dr_mode_by_phy(child_np, -1); if (rport->mode == USB_DR_MODE_HOST || rport->mode == USB_DR_MODE_UNKNOWN) { ret = 0; goto out; } INIT_DELAYED_WORK(&rport->chg_work, rockchip_chg_detect_work); INIT_DELAYED_WORK(&rport->otg_sm_work, rockchip_usb2phy_otg_sm_work); ret = rockchip_usb2phy_port_irq_init(rphy, rport, child_np); if (ret) { dev_err(rphy->dev, "failed to init irq for host port\n"); goto out; } if (!IS_ERR(rphy->edev)) { rport->event_nb.notifier_call = rockchip_otg_event; ret = devm_extcon_register_notifier(rphy->dev, rphy->edev, EXTCON_USB_HOST, &rport->event_nb); if (ret) { dev_err(rphy->dev, "register USB HOST notifier failed\n"); goto out; } if (!of_property_read_bool(rphy->dev->of_node, "extcon")) { /* do initial sync of usb state */ id = property_enabled(rphy->grf, &rport->port_cfg->utmi_id); extcon_set_state_sync(rphy->edev, EXTCON_USB_HOST, !id); } } out: return ret; } static int rockchip_usb2phy_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; struct device_node *child_np; struct phy_provider *provider; struct rockchip_usb2phy *rphy; const struct rockchip_usb2phy_cfg *phy_cfgs; const struct of_device_id *match; unsigned int reg; int index, ret; rphy = devm_kzalloc(dev, sizeof(*rphy), GFP_KERNEL); if (!rphy) return -ENOMEM; match = of_match_device(dev->driver->of_match_table, dev); if (!match || !match->data) { dev_err(dev, "phy configs are not assigned!\n"); return -EINVAL; } if (!dev->parent || !dev->parent->of_node) { rphy->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,usbgrf"); if (IS_ERR(rphy->grf)) { dev_err(dev, "failed to locate usbgrf\n"); return PTR_ERR(rphy->grf); } } else { rphy->grf = syscon_node_to_regmap(dev->parent->of_node); if (IS_ERR(rphy->grf)) return PTR_ERR(rphy->grf); } if (of_device_is_compatible(np, "rockchip,rv1108-usb2phy")) { rphy->usbgrf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,usbgrf"); if (IS_ERR(rphy->usbgrf)) return PTR_ERR(rphy->usbgrf); } else { rphy->usbgrf = NULL; } if (of_property_read_u32_index(np, "reg", 0, ®)) { dev_err(dev, "the reg property is not assigned in %pOFn node\n", np); return -EINVAL; } /* support address_cells=2 */ if (reg == 0) { if (of_property_read_u32_index(np, "reg", 1, ®)) { dev_err(dev, "the reg property is not assigned in %pOFn node\n", np); return -EINVAL; } } rphy->dev = dev; phy_cfgs = match->data; rphy->chg_state = USB_CHG_STATE_UNDEFINED; rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN; rphy->irq = platform_get_irq_optional(pdev, 0); platform_set_drvdata(pdev, rphy); ret = rockchip_usb2phy_extcon_register(rphy); if (ret) return ret; /* find out a proper config which can be matched with dt. */ index = 0; while (phy_cfgs[index].reg) { if (phy_cfgs[index].reg == reg) { rphy->phy_cfg = &phy_cfgs[index]; break; } ++index; } if (!rphy->phy_cfg) { dev_err(dev, "no phy-config can be matched with %pOFn node\n", np); return -EINVAL; } rphy->clk = of_clk_get_by_name(np, "phyclk"); if (!IS_ERR(rphy->clk)) { clk_prepare_enable(rphy->clk); } else { dev_info(&pdev->dev, "no phyclk specified\n"); rphy->clk = NULL; } ret = rockchip_usb2phy_clk480m_register(rphy); if (ret) { dev_err(dev, "failed to register 480m output clock\n"); goto disable_clks; } index = 0; for_each_available_child_of_node(np, child_np) { struct rockchip_usb2phy_port *rport = &rphy->ports[index]; struct phy *phy; /* This driver aims to support both otg-port and host-port */ if (!of_node_name_eq(child_np, "host-port") && !of_node_name_eq(child_np, "otg-port")) goto next_child; phy = devm_phy_create(dev, child_np, &rockchip_usb2phy_ops); if (IS_ERR(phy)) { dev_err_probe(dev, PTR_ERR(phy), "failed to create phy\n"); ret = PTR_ERR(phy); goto put_child; } rport->phy = phy; phy_set_drvdata(rport->phy, rport); /* initialize otg/host port separately */ if (of_node_name_eq(child_np, "host-port")) { ret = rockchip_usb2phy_host_port_init(rphy, rport, child_np); if (ret) goto put_child; } else { ret = rockchip_usb2phy_otg_port_init(rphy, rport, child_np); if (ret) goto put_child; } next_child: /* to prevent out of boundary */ if (++index >= rphy->phy_cfg->num_ports) { of_node_put(child_np); break; } } provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); if (rphy->irq > 0) { ret = devm_request_threaded_irq(rphy->dev, rphy->irq, NULL, rockchip_usb2phy_irq, IRQF_ONESHOT, "rockchip_usb2phy", rphy); if (ret) { dev_err(rphy->dev, "failed to request usb2phy irq handle\n"); goto put_child; } } return PTR_ERR_OR_ZERO(provider); put_child: of_node_put(child_np); disable_clks: if (rphy->clk) { clk_disable_unprepare(rphy->clk); clk_put(rphy->clk); } return ret; } static const struct rockchip_usb2phy_cfg rk3228_phy_cfgs[] = { { .reg = 0x760, .num_ports = 2, .clkout_ctl = { 0x0768, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0x0760, 15, 0, 0, 0x1d1 }, .bvalid_det_en = { 0x0680, 3, 3, 0, 1 }, .bvalid_det_st = { 0x0690, 3, 3, 0, 1 }, .bvalid_det_clr = { 0x06a0, 3, 3, 0, 1 }, .id_det_en = { 0x0680, 6, 5, 0, 3 }, .id_det_st = { 0x0690, 6, 5, 0, 3 }, .id_det_clr = { 0x06a0, 6, 5, 0, 3 }, .ls_det_en = { 0x0680, 2, 2, 0, 1 }, .ls_det_st = { 0x0690, 2, 2, 0, 1 }, .ls_det_clr = { 0x06a0, 2, 2, 0, 1 }, .utmi_bvalid = { 0x0480, 4, 4, 0, 1 }, .utmi_id = { 0x0480, 1, 1, 0, 1 }, .utmi_ls = { 0x0480, 3, 2, 0, 1 }, }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0x0764, 15, 0, 0, 0x1d1 }, .ls_det_en = { 0x0680, 4, 4, 0, 1 }, .ls_det_st = { 0x0690, 4, 4, 0, 1 }, .ls_det_clr = { 0x06a0, 4, 4, 0, 1 } } }, .chg_det = { .opmode = { 0x0760, 3, 0, 5, 1 }, .cp_det = { 0x0884, 4, 4, 0, 1 }, .dcp_det = { 0x0884, 3, 3, 0, 1 }, .dp_det = { 0x0884, 5, 5, 0, 1 }, .idm_sink_en = { 0x0768, 8, 8, 0, 1 }, .idp_sink_en = { 0x0768, 7, 7, 0, 1 }, .idp_src_en = { 0x0768, 9, 9, 0, 1 }, .rdm_pdwn_en = { 0x0768, 10, 10, 0, 1 }, .vdm_src_en = { 0x0768, 12, 12, 0, 1 }, .vdp_src_en = { 0x0768, 11, 11, 0, 1 }, }, }, { .reg = 0x800, .num_ports = 2, .clkout_ctl = { 0x0808, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0x800, 15, 0, 0, 0x1d1 }, .ls_det_en = { 0x0684, 0, 0, 0, 1 }, .ls_det_st = { 0x0694, 0, 0, 0, 1 }, .ls_det_clr = { 0x06a4, 0, 0, 0, 1 } }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0x804, 15, 0, 0, 0x1d1 }, .ls_det_en = { 0x0684, 1, 1, 0, 1 }, .ls_det_st = { 0x0694, 1, 1, 0, 1 }, .ls_det_clr = { 0x06a4, 1, 1, 0, 1 } } }, }, { /* sentinel */ } }; static const struct rockchip_usb2phy_cfg rk3308_phy_cfgs[] = { { .reg = 0x100, .num_ports = 2, .clkout_ctl = { 0x108, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0x0100, 8, 0, 0, 0x1d1 }, .bvalid_det_en = { 0x3020, 3, 2, 0, 3 }, .bvalid_det_st = { 0x3024, 3, 2, 0, 3 }, .bvalid_det_clr = { 0x3028, 3, 2, 0, 3 }, .id_det_en = { 0x3020, 5, 4, 0, 3 }, .id_det_st = { 0x3024, 5, 4, 0, 3 }, .id_det_clr = { 0x3028, 5, 4, 0, 3 }, .ls_det_en = { 0x3020, 0, 0, 0, 1 }, .ls_det_st = { 0x3024, 0, 0, 0, 1 }, .ls_det_clr = { 0x3028, 0, 0, 0, 1 }, .utmi_avalid = { 0x0120, 10, 10, 0, 1 }, .utmi_bvalid = { 0x0120, 9, 9, 0, 1 }, .utmi_id = { 0x0120, 6, 6, 0, 1 }, .utmi_ls = { 0x0120, 5, 4, 0, 1 }, }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0x0104, 8, 0, 0, 0x1d1 }, .ls_det_en = { 0x3020, 1, 1, 0, 1 }, .ls_det_st = { 0x3024, 1, 1, 0, 1 }, .ls_det_clr = { 0x3028, 1, 1, 0, 1 }, .utmi_ls = { 0x0120, 17, 16, 0, 1 }, .utmi_hstdet = { 0x0120, 19, 19, 0, 1 } } }, .chg_det = { .opmode = { 0x0100, 3, 0, 5, 1 }, .cp_det = { 0x0120, 24, 24, 0, 1 }, .dcp_det = { 0x0120, 23, 23, 0, 1 }, .dp_det = { 0x0120, 25, 25, 0, 1 }, .idm_sink_en = { 0x0108, 8, 8, 0, 1 }, .idp_sink_en = { 0x0108, 7, 7, 0, 1 }, .idp_src_en = { 0x0108, 9, 9, 0, 1 }, .rdm_pdwn_en = { 0x0108, 10, 10, 0, 1 }, .vdm_src_en = { 0x0108, 12, 12, 0, 1 }, .vdp_src_en = { 0x0108, 11, 11, 0, 1 }, }, }, { /* sentinel */ } }; static const struct rockchip_usb2phy_cfg rk3328_phy_cfgs[] = { { .reg = 0x100, .num_ports = 2, .clkout_ctl = { 0x108, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0x0100, 15, 0, 0, 0x1d1 }, .bvalid_det_en = { 0x0110, 3, 2, 0, 3 }, .bvalid_det_st = { 0x0114, 3, 2, 0, 3 }, .bvalid_det_clr = { 0x0118, 3, 2, 0, 3 }, .id_det_en = { 0x0110, 5, 4, 0, 3 }, .id_det_st = { 0x0114, 5, 4, 0, 3 }, .id_det_clr = { 0x0118, 5, 4, 0, 3 }, .ls_det_en = { 0x0110, 0, 0, 0, 1 }, .ls_det_st = { 0x0114, 0, 0, 0, 1 }, .ls_det_clr = { 0x0118, 0, 0, 0, 1 }, .utmi_avalid = { 0x0120, 10, 10, 0, 1 }, .utmi_bvalid = { 0x0120, 9, 9, 0, 1 }, .utmi_id = { 0x0120, 6, 6, 0, 1 }, .utmi_ls = { 0x0120, 5, 4, 0, 1 }, }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0x104, 15, 0, 0, 0x1d1 }, .ls_det_en = { 0x110, 1, 1, 0, 1 }, .ls_det_st = { 0x114, 1, 1, 0, 1 }, .ls_det_clr = { 0x118, 1, 1, 0, 1 }, .utmi_ls = { 0x120, 17, 16, 0, 1 }, .utmi_hstdet = { 0x120, 19, 19, 0, 1 } } }, .chg_det = { .opmode = { 0x0100, 3, 0, 5, 1 }, .cp_det = { 0x0120, 24, 24, 0, 1 }, .dcp_det = { 0x0120, 23, 23, 0, 1 }, .dp_det = { 0x0120, 25, 25, 0, 1 }, .idm_sink_en = { 0x0108, 8, 8, 0, 1 }, .idp_sink_en = { 0x0108, 7, 7, 0, 1 }, .idp_src_en = { 0x0108, 9, 9, 0, 1 }, .rdm_pdwn_en = { 0x0108, 10, 10, 0, 1 }, .vdm_src_en = { 0x0108, 12, 12, 0, 1 }, .vdp_src_en = { 0x0108, 11, 11, 0, 1 }, }, }, { /* sentinel */ } }; static const struct rockchip_usb2phy_cfg rk3366_phy_cfgs[] = { { .reg = 0x700, .num_ports = 2, .clkout_ctl = { 0x0724, 15, 15, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_HOST] = { .phy_sus = { 0x0728, 15, 0, 0, 0x1d1 }, .ls_det_en = { 0x0680, 4, 4, 0, 1 }, .ls_det_st = { 0x0690, 4, 4, 0, 1 }, .ls_det_clr = { 0x06a0, 4, 4, 0, 1 }, .utmi_ls = { 0x049c, 14, 13, 0, 1 }, .utmi_hstdet = { 0x049c, 12, 12, 0, 1 } } }, }, { /* sentinel */ } }; static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = { { .reg = 0xe450, .num_ports = 2, .clkout_ctl = { 0xe450, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0xe454, 1, 0, 2, 1 }, .bvalid_det_en = { 0xe3c0, 3, 3, 0, 1 }, .bvalid_det_st = { 0xe3e0, 3, 3, 0, 1 }, .bvalid_det_clr = { 0xe3d0, 3, 3, 0, 1 }, .id_det_en = { 0xe3c0, 5, 4, 0, 3 }, .id_det_st = { 0xe3e0, 5, 4, 0, 3 }, .id_det_clr = { 0xe3d0, 5, 4, 0, 3 }, .utmi_avalid = { 0xe2ac, 7, 7, 0, 1 }, .utmi_bvalid = { 0xe2ac, 12, 12, 0, 1 }, .utmi_id = { 0xe2ac, 8, 8, 0, 1 }, }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0xe458, 1, 0, 0x2, 0x1 }, .ls_det_en = { 0xe3c0, 6, 6, 0, 1 }, .ls_det_st = { 0xe3e0, 6, 6, 0, 1 }, .ls_det_clr = { 0xe3d0, 6, 6, 0, 1 }, .utmi_ls = { 0xe2ac, 22, 21, 0, 1 }, .utmi_hstdet = { 0xe2ac, 23, 23, 0, 1 } } }, .chg_det = { .opmode = { 0xe454, 3, 0, 5, 1 }, .cp_det = { 0xe2ac, 2, 2, 0, 1 }, .dcp_det = { 0xe2ac, 1, 1, 0, 1 }, .dp_det = { 0xe2ac, 0, 0, 0, 1 }, .idm_sink_en = { 0xe450, 8, 8, 0, 1 }, .idp_sink_en = { 0xe450, 7, 7, 0, 1 }, .idp_src_en = { 0xe450, 9, 9, 0, 1 }, .rdm_pdwn_en = { 0xe450, 10, 10, 0, 1 }, .vdm_src_en = { 0xe450, 12, 12, 0, 1 }, .vdp_src_en = { 0xe450, 11, 11, 0, 1 }, }, }, { .reg = 0xe460, .num_ports = 2, .clkout_ctl = { 0xe460, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0xe464, 1, 0, 2, 1 }, .bvalid_det_en = { 0xe3c0, 8, 8, 0, 1 }, .bvalid_det_st = { 0xe3e0, 8, 8, 0, 1 }, .bvalid_det_clr = { 0xe3d0, 8, 8, 0, 1 }, .id_det_en = { 0xe3c0, 10, 9, 0, 3 }, .id_det_st = { 0xe3e0, 10, 9, 0, 3 }, .id_det_clr = { 0xe3d0, 10, 9, 0, 3 }, .utmi_avalid = { 0xe2ac, 10, 10, 0, 1 }, .utmi_bvalid = { 0xe2ac, 16, 16, 0, 1 }, .utmi_id = { 0xe2ac, 11, 11, 0, 1 }, }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0xe468, 1, 0, 0x2, 0x1 }, .ls_det_en = { 0xe3c0, 11, 11, 0, 1 }, .ls_det_st = { 0xe3e0, 11, 11, 0, 1 }, .ls_det_clr = { 0xe3d0, 11, 11, 0, 1 }, .utmi_ls = { 0xe2ac, 26, 25, 0, 1 }, .utmi_hstdet = { 0xe2ac, 27, 27, 0, 1 } } }, }, { /* sentinel */ } }; static const struct rockchip_usb2phy_cfg rk3568_phy_cfgs[] = { { .reg = 0xfe8a0000, .num_ports = 2, .clkout_ctl = { 0x0008, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0x0000, 8, 0, 0, 0x1d1 }, .bvalid_det_en = { 0x0080, 3, 2, 0, 3 }, .bvalid_det_st = { 0x0084, 3, 2, 0, 3 }, .bvalid_det_clr = { 0x0088, 3, 2, 0, 3 }, .id_det_en = { 0x0080, 5, 4, 0, 3 }, .id_det_st = { 0x0084, 5, 4, 0, 3 }, .id_det_clr = { 0x0088, 5, 4, 0, 3 }, .utmi_avalid = { 0x00c0, 10, 10, 0, 1 }, .utmi_bvalid = { 0x00c0, 9, 9, 0, 1 }, .utmi_id = { 0x00c0, 6, 6, 0, 1 }, }, [USB2PHY_PORT_HOST] = { /* Select suspend control from controller */ .phy_sus = { 0x0004, 8, 0, 0x1d2, 0x1d2 }, .ls_det_en = { 0x0080, 1, 1, 0, 1 }, .ls_det_st = { 0x0084, 1, 1, 0, 1 }, .ls_det_clr = { 0x0088, 1, 1, 0, 1 }, .utmi_ls = { 0x00c0, 17, 16, 0, 1 }, .utmi_hstdet = { 0x00c0, 19, 19, 0, 1 } } }, .chg_det = { .opmode = { 0x0000, 3, 0, 5, 1 }, .cp_det = { 0x00c0, 24, 24, 0, 1 }, .dcp_det = { 0x00c0, 23, 23, 0, 1 }, .dp_det = { 0x00c0, 25, 25, 0, 1 }, .idm_sink_en = { 0x0008, 8, 8, 0, 1 }, .idp_sink_en = { 0x0008, 7, 7, 0, 1 }, .idp_src_en = { 0x0008, 9, 9, 0, 1 }, .rdm_pdwn_en = { 0x0008, 10, 10, 0, 1 }, .vdm_src_en = { 0x0008, 12, 12, 0, 1 }, .vdp_src_en = { 0x0008, 11, 11, 0, 1 }, }, }, { .reg = 0xfe8b0000, .num_ports = 2, .clkout_ctl = { 0x0008, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0x0000, 8, 0, 0x1d2, 0x1d1 }, .ls_det_en = { 0x0080, 0, 0, 0, 1 }, .ls_det_st = { 0x0084, 0, 0, 0, 1 }, .ls_det_clr = { 0x0088, 0, 0, 0, 1 }, .utmi_ls = { 0x00c0, 5, 4, 0, 1 }, .utmi_hstdet = { 0x00c0, 7, 7, 0, 1 } }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0x0004, 8, 0, 0x1d2, 0x1d1 }, .ls_det_en = { 0x0080, 1, 1, 0, 1 }, .ls_det_st = { 0x0084, 1, 1, 0, 1 }, .ls_det_clr = { 0x0088, 1, 1, 0, 1 }, .utmi_ls = { 0x00c0, 17, 16, 0, 1 }, .utmi_hstdet = { 0x00c0, 19, 19, 0, 1 } } }, }, { /* sentinel */ } }; static const struct rockchip_usb2phy_cfg rv1108_phy_cfgs[] = { { .reg = 0x100, .num_ports = 2, .clkout_ctl = { 0x108, 4, 4, 1, 0 }, .port_cfgs = { [USB2PHY_PORT_OTG] = { .phy_sus = { 0x0100, 15, 0, 0, 0x1d1 }, .bvalid_det_en = { 0x0680, 3, 3, 0, 1 }, .bvalid_det_st = { 0x0690, 3, 3, 0, 1 }, .bvalid_det_clr = { 0x06a0, 3, 3, 0, 1 }, .ls_det_en = { 0x0680, 2, 2, 0, 1 }, .ls_det_st = { 0x0690, 2, 2, 0, 1 }, .ls_det_clr = { 0x06a0, 2, 2, 0, 1 }, .utmi_bvalid = { 0x0804, 10, 10, 0, 1 }, .utmi_ls = { 0x0804, 13, 12, 0, 1 }, }, [USB2PHY_PORT_HOST] = { .phy_sus = { 0x0104, 15, 0, 0, 0x1d1 }, .ls_det_en = { 0x0680, 4, 4, 0, 1 }, .ls_det_st = { 0x0690, 4, 4, 0, 1 }, .ls_det_clr = { 0x06a0, 4, 4, 0, 1 }, .utmi_ls = { 0x0804, 9, 8, 0, 1 }, .utmi_hstdet = { 0x0804, 7, 7, 0, 1 } } }, .chg_det = { .opmode = { 0x0100, 3, 0, 5, 1 }, .cp_det = { 0x0804, 1, 1, 0, 1 }, .dcp_det = { 0x0804, 0, 0, 0, 1 }, .dp_det = { 0x0804, 2, 2, 0, 1 }, .idm_sink_en = { 0x0108, 8, 8, 0, 1 }, .idp_sink_en = { 0x0108, 7, 7, 0, 1 }, .idp_src_en = { 0x0108, 9, 9, 0, 1 }, .rdm_pdwn_en = { 0x0108, 10, 10, 0, 1 }, .vdm_src_en = { 0x0108, 12, 12, 0, 1 }, .vdp_src_en = { 0x0108, 11, 11, 0, 1 }, }, }, { /* sentinel */ } }; static const struct of_device_id rockchip_usb2phy_dt_match[] = { { .compatible = "rockchip,px30-usb2phy", .data = &rk3328_phy_cfgs }, { .compatible = "rockchip,rk3228-usb2phy", .data = &rk3228_phy_cfgs }, { .compatible = "rockchip,rk3308-usb2phy", .data = &rk3308_phy_cfgs }, { .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs }, { .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs }, { .compatible = "rockchip,rk3399-usb2phy", .data = &rk3399_phy_cfgs }, { .compatible = "rockchip,rk3568-usb2phy", .data = &rk3568_phy_cfgs }, { .compatible = "rockchip,rv1108-usb2phy", .data = &rv1108_phy_cfgs }, {} }; MODULE_DEVICE_TABLE(of, rockchip_usb2phy_dt_match); static struct platform_driver rockchip_usb2phy_driver = { .probe = rockchip_usb2phy_probe, .driver = { .name = "rockchip-usb2phy", .of_match_table = rockchip_usb2phy_dt_match, }, }; module_platform_driver(rockchip_usb2phy_driver); MODULE_AUTHOR("Frank Wang <frank.wang@rock-chips.com>"); MODULE_DESCRIPTION("Rockchip USB2.0 PHY driver"); MODULE_LICENSE("GPL v2");
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