diff options
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 137 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 7 | ||||
| -rw-r--r-- | drivers/usb/dwc3/debug.h | 4 | ||||
| -rw-r--r-- | drivers/usb/dwc3/drd.c | 50 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-pci.c | 14 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-qcom.c | 22 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-xilinx.c | 63 | ||||
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 11 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 73 | ||||
| -rw-r--r-- | drivers/usb/dwc3/trace.h | 3 |
10 files changed, 256 insertions, 128 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index d0237b30c9be..ea51624461b5 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -23,7 +23,6 @@ #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/of.h> -#include <linux/of_graph.h> #include <linux/acpi.h> #include <linux/pinctrl/consumer.h> #include <linux/reset.h> @@ -86,7 +85,7 @@ static int dwc3_get_dr_mode(struct dwc3 *dwc) * mode. If the controller supports DRD but the dr_mode is not * specified or set to OTG, then set the mode to peripheral. */ - if (mode == USB_DR_MODE_OTG && !dwc->edev && + if (mode == USB_DR_MODE_OTG && (!IS_ENABLED(CONFIG_USB_ROLE_SWITCH) || !device_property_read_bool(dwc->dev, "usb-role-switch")) && !DWC3_VER_IS_PRIOR(DWC3, 330A)) @@ -408,6 +407,10 @@ static void dwc3_ref_clk_period(struct dwc3 *dwc) reg |= FIELD_PREP(DWC3_GFLADJ_REFCLK_FLADJ_MASK, fladj) | FIELD_PREP(DWC3_GFLADJ_240MHZDECR, decr >> 1) | FIELD_PREP(DWC3_GFLADJ_240MHZDECR_PLS1, decr & 1); + + if (dwc->gfladj_refclk_lpm_sel) + reg |= DWC3_GFLADJ_REFCLK_LPM_SEL; + dwc3_writel(dwc->regs, DWC3_GFLADJ, reg); } @@ -789,7 +792,7 @@ static int dwc3_phy_setup(struct dwc3 *dwc) else reg |= DWC3_GUSB2PHYCFG_ENBLSLPM; - if (dwc->dis_u2_freeclk_exists_quirk) + if (dwc->dis_u2_freeclk_exists_quirk || dwc->gfladj_refclk_lpm_sel) reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS; dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); @@ -1180,6 +1183,21 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GUCTL2, reg); } + /* + * When configured in HOST mode, after issuing U3/L2 exit controller + * fails to send proper CRC checksum in CRC5 feild. Because of this + * behaviour Transaction Error is generated, resulting in reset and + * re-enumeration of usb device attached. All the termsel, xcvrsel, + * opmode becomes 0 during end of resume. Enabling bit 10 of GUCTL1 + * will correct this problem. This option is to support certain + * legacy ULPI PHYs. + */ + if (dwc->resume_hs_terminations) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL1); + reg |= DWC3_GUCTL1_RESUME_OPMODE_HS_HOST; + dwc3_writel(dwc->regs, DWC3_GUCTL1, reg); + } + if (!DWC3_VER_IS_PRIOR(DWC3, 250A)) { reg = dwc3_readl(dwc->regs, DWC3_GUCTL1); @@ -1523,8 +1541,12 @@ static void dwc3_get_properties(struct dwc3 *dwc) "snps,dis-del-phy-power-chg-quirk"); dwc->dis_tx_ipgap_linecheck_quirk = device_property_read_bool(dev, "snps,dis-tx-ipgap-linecheck-quirk"); + dwc->resume_hs_terminations = device_property_read_bool(dev, + "snps,resume-hs-terminations"); dwc->parkmode_disable_ss_quirk = device_property_read_bool(dev, "snps,parkmode-disable-ss-quirk"); + dwc->gfladj_refclk_lpm_sel = device_property_read_bool(dev, + "snps,gfladj-refclk-lpm-sel-quirk"); dwc->tx_de_emphasis_quirk = device_property_read_bool(dev, "snps,tx_de_emphasis_quirk"); @@ -1668,46 +1690,6 @@ static void dwc3_check_params(struct dwc3 *dwc) } } -static struct extcon_dev *dwc3_get_extcon(struct dwc3 *dwc) -{ - struct device *dev = dwc->dev; - struct device_node *np_phy; - struct extcon_dev *edev = NULL; - const char *name; - - if (device_property_read_bool(dev, "extcon")) - return extcon_get_edev_by_phandle(dev, 0); - - /* - * Device tree platforms should get extcon via phandle. - * On ACPI platforms, we get the name from a device property. - * This device property is for kernel internal use only and - * is expected to be set by the glue code. - */ - if (device_property_read_string(dev, "linux,extcon-name", &name) == 0) - return extcon_get_extcon_dev(name); - - /* - * Try to get an extcon device from the USB PHY controller's "port" - * node. Check if it has the "port" node first, to avoid printing the - * error message from underlying code, as it's a valid case: extcon - * device (and "port" node) may be missing in case of "usb-role-switch" - * or OTG mode. - */ - np_phy = of_parse_phandle(dev->of_node, "phys", 0); - if (of_graph_is_present(np_phy)) { - struct device_node *np_conn; - - np_conn = of_graph_get_remote_node(np_phy, -1, -1); - if (np_conn) - edev = extcon_find_edev_by_node(np_conn); - of_node_put(np_conn); - } - of_node_put(np_phy); - - return edev; -} - static int dwc3_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1753,8 +1735,10 @@ static int dwc3_probe(struct platform_device *pdev) dwc3_get_properties(dwc); dwc->reset = devm_reset_control_array_get_optional_shared(dev); - if (IS_ERR(dwc->reset)) - return PTR_ERR(dwc->reset); + if (IS_ERR(dwc->reset)) { + ret = PTR_ERR(dwc->reset); + goto put_usb_psy; + } if (dev->of_node) { /* @@ -1764,45 +1748,57 @@ static int dwc3_probe(struct platform_device *pdev) * check for them to retain backwards compatibility. */ dwc->bus_clk = devm_clk_get_optional(dev, "bus_early"); - if (IS_ERR(dwc->bus_clk)) - return dev_err_probe(dev, PTR_ERR(dwc->bus_clk), - "could not get bus clock\n"); + if (IS_ERR(dwc->bus_clk)) { + ret = dev_err_probe(dev, PTR_ERR(dwc->bus_clk), + "could not get bus clock\n"); + goto put_usb_psy; + } if (dwc->bus_clk == NULL) { dwc->bus_clk = devm_clk_get_optional(dev, "bus_clk"); - if (IS_ERR(dwc->bus_clk)) - return dev_err_probe(dev, PTR_ERR(dwc->bus_clk), - "could not get bus clock\n"); + if (IS_ERR(dwc->bus_clk)) { + ret = dev_err_probe(dev, PTR_ERR(dwc->bus_clk), + "could not get bus clock\n"); + goto put_usb_psy; + } } dwc->ref_clk = devm_clk_get_optional(dev, "ref"); - if (IS_ERR(dwc->ref_clk)) - return dev_err_probe(dev, PTR_ERR(dwc->ref_clk), - "could not get ref clock\n"); + if (IS_ERR(dwc->ref_clk)) { + ret = dev_err_probe(dev, PTR_ERR(dwc->ref_clk), + "could not get ref clock\n"); + goto put_usb_psy; + } if (dwc->ref_clk == NULL) { dwc->ref_clk = devm_clk_get_optional(dev, "ref_clk"); - if (IS_ERR(dwc->ref_clk)) - return dev_err_probe(dev, PTR_ERR(dwc->ref_clk), - "could not get ref clock\n"); + if (IS_ERR(dwc->ref_clk)) { + ret = dev_err_probe(dev, PTR_ERR(dwc->ref_clk), + "could not get ref clock\n"); + goto put_usb_psy; + } } dwc->susp_clk = devm_clk_get_optional(dev, "suspend"); - if (IS_ERR(dwc->susp_clk)) - return dev_err_probe(dev, PTR_ERR(dwc->susp_clk), - "could not get suspend clock\n"); + if (IS_ERR(dwc->susp_clk)) { + ret = dev_err_probe(dev, PTR_ERR(dwc->susp_clk), + "could not get suspend clock\n"); + goto put_usb_psy; + } if (dwc->susp_clk == NULL) { dwc->susp_clk = devm_clk_get_optional(dev, "suspend_clk"); - if (IS_ERR(dwc->susp_clk)) - return dev_err_probe(dev, PTR_ERR(dwc->susp_clk), - "could not get suspend clock\n"); + if (IS_ERR(dwc->susp_clk)) { + ret = dev_err_probe(dev, PTR_ERR(dwc->susp_clk), + "could not get suspend clock\n"); + goto put_usb_psy; + } } } ret = reset_control_deassert(dwc->reset); if (ret) - return ret; + goto put_usb_psy; ret = dwc3_clk_enable(dwc); if (ret) @@ -1844,13 +1840,6 @@ static int dwc3_probe(struct platform_device *pdev) goto err2; } - dwc->edev = dwc3_get_extcon(dwc); - if (IS_ERR(dwc->edev)) { - ret = PTR_ERR(dwc->edev); - dev_err_probe(dwc->dev, ret, "failed to get extcon\n"); - goto err3; - } - ret = dwc3_get_dr_mode(dwc); if (ret) goto err3; @@ -1909,7 +1898,7 @@ disable_clks: dwc3_clk_disable(dwc); assert_reset: reset_control_assert(dwc->reset); - +put_usb_psy: if (dwc->usb_psy) power_supply_put(dwc->usb_psy); @@ -1977,9 +1966,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) case DWC3_GCTL_PRTCAP_DEVICE: if (pm_runtime_suspended(dwc->dev)) break; - spin_lock_irqsave(&dwc->lock, flags); dwc3_gadget_suspend(dwc); - spin_unlock_irqrestore(&dwc->lock, flags); synchronize_irq(dwc->irq_gadget); dwc3_core_exit(dwc); break; @@ -2040,9 +2027,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) return ret; dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); - spin_lock_irqsave(&dwc->lock, flags); dwc3_gadget_resume(dwc); - spin_unlock_irqrestore(&dwc->lock, flags); break; case DWC3_GCTL_PRTCAP_HOST: if (!PMSG_IS_AUTO(msg) && !device_may_wakeup(dwc->dev)) { diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 4fe4287dc934..8f9959ba9fd4 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -263,6 +263,7 @@ #define DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK BIT(26) #define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24) #define DWC3_GUCTL1_PARKMODE_DISABLE_SS BIT(17) +#define DWC3_GUCTL1_RESUME_OPMODE_HS_HOST BIT(10) /* Global Status Register */ #define DWC3_GSTS_OTG_IP BIT(10) @@ -391,6 +392,7 @@ #define DWC3_GFLADJ_30MHZ_SDBND_SEL BIT(7) #define DWC3_GFLADJ_30MHZ_MASK 0x3f #define DWC3_GFLADJ_REFCLK_FLADJ_MASK GENMASK(21, 8) +#define DWC3_GFLADJ_REFCLK_LPM_SEL BIT(23) #define DWC3_GFLADJ_240MHZDECR GENMASK(30, 24) #define DWC3_GFLADJ_240MHZDECR_PLS1 BIT(31) @@ -1096,6 +1098,8 @@ struct dwc3_scratchpad_array { * change quirk. * @dis_tx_ipgap_linecheck_quirk: set if we disable u2mac linestate * check during HS transmit. + * @resume-hs-terminations: Set if we enable quirk for fixing improper crc + * generation after resume from suspend. * @parkmode_disable_ss_quirk: set if we need to disable all SuperSpeed * instances in park mode. * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk @@ -1311,7 +1315,9 @@ struct dwc3 { unsigned dis_u2_freeclk_exists_quirk:1; unsigned dis_del_phy_power_chg_quirk:1; unsigned dis_tx_ipgap_linecheck_quirk:1; + unsigned resume_hs_terminations:1; unsigned parkmode_disable_ss_quirk:1; + unsigned gfladj_refclk_lpm_sel:1; unsigned tx_de_emphasis_quirk:1; unsigned tx_de_emphasis:2; @@ -1560,6 +1566,7 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd, int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned int cmd, u32 param); void dwc3_gadget_clear_tx_fifos(struct dwc3 *dwc); +void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep, int status); #else static inline int dwc3_gadget_init(struct dwc3 *dwc) { return 0; } diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h index d223c54115f4..48b44b88dc25 100644 --- a/drivers/usb/dwc3/debug.h +++ b/drivers/usb/dwc3/debug.h @@ -278,7 +278,7 @@ static inline const char *dwc3_ep_event_string(char *str, size_t size, break; case DWC3_DEPEVT_XFERINPROGRESS: scnprintf(str + len, size - len, - "Transfer In Progress [%d] (%c%c%c)", + "Transfer In Progress [%08x] (%c%c%c)", event->parameters, status & DEPEVT_STATUS_SHORT ? 'S' : 's', status & DEPEVT_STATUS_IOC ? 'I' : 'i', @@ -286,7 +286,7 @@ static inline const char *dwc3_ep_event_string(char *str, size_t size, break; case DWC3_DEPEVT_XFERNOTREADY: len += scnprintf(str + len, size - len, - "Transfer Not Ready [%d]%s", + "Transfer Not Ready [%08x]%s", event->parameters, status & DEPEVT_STATUS_TRANSFER_ACTIVE ? " (Active)" : " (Not Active)"); diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c index 039bf241769a..8cad9e7d3368 100644 --- a/drivers/usb/dwc3/drd.c +++ b/drivers/usb/dwc3/drd.c @@ -8,6 +8,7 @@ */ #include <linux/extcon.h> +#include <linux/of_graph.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/property.h> @@ -438,6 +439,51 @@ static int dwc3_drd_notifier(struct notifier_block *nb, return NOTIFY_DONE; } +static struct extcon_dev *dwc3_get_extcon(struct dwc3 *dwc) +{ + struct device *dev = dwc->dev; + struct device_node *np_phy; + struct extcon_dev *edev = NULL; + const char *name; + + if (device_property_read_bool(dev, "extcon")) + return extcon_get_edev_by_phandle(dev, 0); + + /* + * Device tree platforms should get extcon via phandle. + * On ACPI platforms, we get the name from a device property. + * This device property is for kernel internal use only and + * is expected to be set by the glue code. + */ + if (device_property_read_string(dev, "linux,extcon-name", &name) == 0) { + edev = extcon_get_extcon_dev(name); + if (!edev) + return ERR_PTR(-EPROBE_DEFER); + + return edev; + } + + /* + * Try to get an extcon device from the USB PHY controller's "port" + * node. Check if it has the "port" node first, to avoid printing the + * error message from underlying code, as it's a valid case: extcon + * device (and "port" node) may be missing in case of "usb-role-switch" + * or OTG mode. + */ + np_phy = of_parse_phandle(dev->of_node, "phys", 0); + if (of_graph_is_present(np_phy)) { + struct device_node *np_conn; + + np_conn = of_graph_get_remote_node(np_phy, -1, -1); + if (np_conn) + edev = extcon_find_edev_by_node(np_conn); + of_node_put(np_conn); + } + of_node_put(np_phy); + + return edev; +} + #if IS_ENABLED(CONFIG_USB_ROLE_SWITCH) #define ROLE_SWITCH 1 static int dwc3_usb_role_switch_set(struct usb_role_switch *sw, @@ -542,6 +588,10 @@ int dwc3_drd_init(struct dwc3 *dwc) device_property_read_bool(dwc->dev, "usb-role-switch")) return dwc3_setup_role_switch(dwc); + dwc->edev = dwc3_get_extcon(dwc); + if (IS_ERR(dwc->edev)) + return PTR_ERR(dwc->edev); + if (dwc->edev) { dwc->edev_nb.notifier_call = dwc3_drd_notifier; ret = extcon_register_notifier(dwc->edev, EXTCON_USB_HOST, diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 4ee4ca09873a..fb14511b1e10 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -40,9 +40,10 @@ #define PCI_DEVICE_ID_INTEL_TGPLP 0xa0ee #define PCI_DEVICE_ID_INTEL_TGPH 0x43ee #define PCI_DEVICE_ID_INTEL_JSP 0x4dee -#define PCI_DEVICE_ID_INTEL_ADL 0x465e -#define PCI_DEVICE_ID_INTEL_ADLP 0x51ee -#define PCI_DEVICE_ID_INTEL_ADLM 0x54ee +#define PCI_DEVICE_ID_INTEL_ADL 0x460e +#define PCI_DEVICE_ID_INTEL_ADL_PCH 0x51ee +#define PCI_DEVICE_ID_INTEL_ADLN 0x465e +#define PCI_DEVICE_ID_INTEL_ADLN_PCH 0x54ee #define PCI_DEVICE_ID_INTEL_ADLS 0x7ae1 #define PCI_DEVICE_ID_INTEL_RPL 0x460e #define PCI_DEVICE_ID_INTEL_RPLS 0x7a61 @@ -448,10 +449,13 @@ static const struct pci_device_id dwc3_pci_id_table[] = { { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADL), (kernel_ulong_t) &dwc3_pci_intel_swnode, }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLP), + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADL_PCH), (kernel_ulong_t) &dwc3_pci_intel_swnode, }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLM), + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLN), + (kernel_ulong_t) &dwc3_pci_intel_swnode, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLN_PCH), (kernel_ulong_t) &dwc3_pci_intel_swnode, }, { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLS), diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index d3f3937d7005..7c40f3ffc054 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -243,6 +243,7 @@ static int dwc3_qcom_interconnect_disable(struct dwc3_qcom *qcom) */ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom) { + enum usb_device_speed max_speed; struct device *dev = qcom->dev; int ret; @@ -252,7 +253,7 @@ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom) qcom->icc_path_ddr = of_icc_get(dev, "usb-ddr"); if (IS_ERR(qcom->icc_path_ddr)) { dev_err(dev, "failed to get usb-ddr path: %ld\n", - PTR_ERR(qcom->icc_path_ddr)); + PTR_ERR(qcom->icc_path_ddr)); return PTR_ERR(qcom->icc_path_ddr); } @@ -263,21 +264,20 @@ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom) return PTR_ERR(qcom->icc_path_apps); } - if (usb_get_maximum_speed(&qcom->dwc3->dev) >= USB_SPEED_SUPER || - usb_get_maximum_speed(&qcom->dwc3->dev) == USB_SPEED_UNKNOWN) + max_speed = usb_get_maximum_speed(&qcom->dwc3->dev); + if (max_speed >= USB_SPEED_SUPER || max_speed == USB_SPEED_UNKNOWN) { ret = icc_set_bw(qcom->icc_path_ddr, - USB_MEMORY_AVG_SS_BW, USB_MEMORY_PEAK_SS_BW); - else + USB_MEMORY_AVG_SS_BW, USB_MEMORY_PEAK_SS_BW); + } else { ret = icc_set_bw(qcom->icc_path_ddr, - USB_MEMORY_AVG_HS_BW, USB_MEMORY_PEAK_HS_BW); - + USB_MEMORY_AVG_HS_BW, USB_MEMORY_PEAK_HS_BW); + } if (ret) { dev_err(dev, "failed to set bandwidth for usb-ddr path: %d\n", ret); return ret; } - ret = icc_set_bw(qcom->icc_path_apps, - APPS_USB_AVG_BW, APPS_USB_PEAK_BW); + ret = icc_set_bw(qcom->icc_path_apps, APPS_USB_AVG_BW, APPS_USB_PEAK_BW); if (ret) { dev_err(dev, "failed to set bandwidth for apps-usb path: %d\n", ret); return ret; @@ -1007,10 +1007,6 @@ static const struct dev_pm_ops dwc3_qcom_dev_pm_ops = { static const struct of_device_id dwc3_qcom_of_match[] = { { .compatible = "qcom,dwc3" }, - { .compatible = "qcom,msm8996-dwc3" }, - { .compatible = "qcom,msm8998-dwc3" }, - { .compatible = "qcom,sdm660-dwc3" }, - { .compatible = "qcom,sdm845-dwc3" }, { } }; MODULE_DEVICE_TABLE(of, dwc3_qcom_of_match); diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c index 67b237c7a76a..8607d4c23283 100644 --- a/drivers/usb/dwc3/dwc3-xilinx.c +++ b/drivers/usb/dwc3/dwc3-xilinx.c @@ -47,6 +47,7 @@ struct dwc3_xlnx { struct device *dev; void __iomem *regs; int (*pltfm_init)(struct dwc3_xlnx *data); + struct phy *usb3_phy; }; static void dwc3_xlnx_mask_phy_rst(struct dwc3_xlnx *priv_data, bool mask) @@ -100,13 +101,12 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data) struct device *dev = priv_data->dev; struct reset_control *crst, *hibrst, *apbrst; struct gpio_desc *reset_gpio; - struct phy *usb3_phy; int ret = 0; u32 reg; - usb3_phy = devm_phy_optional_get(dev, "usb3-phy"); - if (IS_ERR(usb3_phy)) { - ret = PTR_ERR(usb3_phy); + priv_data->usb3_phy = devm_phy_optional_get(dev, "usb3-phy"); + if (IS_ERR(priv_data->usb3_phy)) { + ret = PTR_ERR(priv_data->usb3_phy); dev_err_probe(dev, ret, "failed to get USB3 PHY\n"); goto err; @@ -121,7 +121,7 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data) * in use but the usb3-phy entry is missing from the device tree. * Therefore, skip these operations in this case. */ - if (!usb3_phy) + if (!priv_data->usb3_phy) goto skip_usb3_phy; crst = devm_reset_control_get_exclusive(dev, "usb_crst"); @@ -166,9 +166,9 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data) goto err; } - ret = phy_init(usb3_phy); + ret = phy_init(priv_data->usb3_phy); if (ret < 0) { - phy_exit(usb3_phy); + phy_exit(priv_data->usb3_phy); goto err; } @@ -196,9 +196,9 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data) goto err; } - ret = phy_power_on(usb3_phy); + ret = phy_power_on(priv_data->usb3_phy); if (ret < 0) { - phy_exit(usb3_phy); + phy_exit(priv_data->usb3_phy); goto err; } @@ -322,7 +322,7 @@ static int dwc3_xlnx_remove(struct platform_device *pdev) return 0; } -static int __maybe_unused dwc3_xlnx_suspend_common(struct device *dev) +static int __maybe_unused dwc3_xlnx_runtime_suspend(struct device *dev) { struct dwc3_xlnx *priv_data = dev_get_drvdata(dev); @@ -331,7 +331,7 @@ static int __maybe_unused dwc3_xlnx_suspend_common(struct device *dev) return 0; } -static int __maybe_unused dwc3_xlnx_resume_common(struct device *dev) +static int __maybe_unused dwc3_xlnx_runtime_resume(struct device *dev) { struct dwc3_xlnx *priv_data = dev_get_drvdata(dev); @@ -346,8 +346,45 @@ static int __maybe_unused dwc3_xlnx_runtime_idle(struct device *dev) return 0; } -static UNIVERSAL_DEV_PM_OPS(dwc3_xlnx_dev_pm_ops, dwc3_xlnx_suspend_common, - dwc3_xlnx_resume_common, dwc3_xlnx_runtime_idle); +static int __maybe_unused dwc3_xlnx_suspend(struct device *dev) +{ + struct dwc3_xlnx *priv_data = dev_get_drvdata(dev); + + phy_exit(priv_data->usb3_phy); + + /* Disable the clocks */ + clk_bulk_disable(priv_data->num_clocks, priv_data->clks); + + return 0; +} + +static int __maybe_unused dwc3_xlnx_resume(struct device *dev) +{ + struct dwc3_xlnx *priv_data = dev_get_drvdata(dev); + int ret; + + ret = clk_bulk_enable(priv_data->num_clocks, priv_data->clks); + if (ret) + return ret; + + ret = phy_init(priv_data->usb3_phy); + if (ret < 0) + return ret; + + ret = phy_power_on(priv_data->usb3_phy); + if (ret < 0) { + phy_exit(priv_data->usb3_phy); + return ret; + } + + return 0; +} + +static const struct dev_pm_ops dwc3_xlnx_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(dwc3_xlnx_suspend, dwc3_xlnx_resume) + SET_RUNTIME_PM_OPS(dwc3_xlnx_runtime_suspend, + dwc3_xlnx_runtime_resume, dwc3_xlnx_runtime_idle) +}; static struct platform_driver dwc3_xlnx_driver = { .probe = dwc3_xlnx_probe, diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 197af63f8d05..61de693461da 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -197,7 +197,7 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, int ret; spin_lock_irqsave(&dwc->lock, flags); - if (!dep->endpoint.desc || !dwc->pullups_connected) { + if (!dep->endpoint.desc || !dwc->pullups_connected || !dwc->connected) { dev_err(dwc->dev, "%s: can't queue to disabled endpoint\n", dep->name); ret = -ESHUTDOWN; @@ -293,7 +293,10 @@ void dwc3_ep0_out_start(struct dwc3 *dwc) continue; dwc3_ep->flags &= ~DWC3_EP_DELAY_STOP; - dwc3_stop_active_transfer(dwc3_ep, true, true); + if (dwc->connected) + dwc3_stop_active_transfer(dwc3_ep, true, true); + else + dwc3_remove_requests(dwc, dwc3_ep, -ESHUTDOWN); } } @@ -815,7 +818,7 @@ static void dwc3_ep0_inspect_setup(struct dwc3 *dwc, int ret = -EINVAL; u32 len; - if (!dwc->gadget_driver || !dwc->connected) + if (!dwc->gadget_driver || !dwc->softconnect || !dwc->connected) goto out; trace_dwc3_ctrl_req(ctrl); @@ -1118,6 +1121,8 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc, { switch (event->status) { case DEPEVT_STATUS_CONTROL_DATA: + if (!dwc->softconnect || !dwc->connected) + return; /* * We already have a DATA transfer in the controller's cache, * if we receive a XferNotReady(DATA) we will ignore it, unless diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index eca945feeec3..079cd333632e 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -366,7 +366,9 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd, dwc3_writel(dep->regs, DWC3_DEPCMD, cmd); - if (!(cmd & DWC3_DEPCMD_CMDACT)) { + if (!(cmd & DWC3_DEPCMD_CMDACT) || + (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_ENDTRANSFER && + !(cmd & DWC3_DEPCMD_CMDIOC))) { ret = 0; goto skip_status; } @@ -965,29 +967,33 @@ out: return 0; } -static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep) +void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep, int status) { struct dwc3_request *req; dwc3_stop_active_transfer(dep, true, false); + /* If endxfer is delayed, avoid unmapping requests */ + if (dep->flags & DWC3_EP_DELAY_STOP) + return; + /* - giveback all requests to gadget driver */ while (!list_empty(&dep->started_list)) { req = next_request(&dep->started_list); - dwc3_gadget_giveback(dep, req, -ESHUTDOWN); + dwc3_gadget_giveback(dep, req, status); } while (!list_empty(&dep->pending_list)) { req = next_request(&dep->pending_list); - dwc3_gadget_giveback(dep, req, -ESHUTDOWN); + dwc3_gadget_giveback(dep, req, status); } while (!list_empty(&dep->cancelled_list)) { req = next_request(&dep->cancelled_list); - dwc3_gadget_giveback(dep, req, -ESHUTDOWN); + dwc3_gadget_giveback(dep, req, status); } } @@ -1005,6 +1011,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) { struct dwc3 *dwc = dep->dwc; u32 reg; + u32 mask; trace_dwc3_gadget_ep_disable(dep); @@ -1022,11 +1029,19 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) dep->endpoint.desc = NULL; } - dwc3_remove_requests(dwc, dep); + dwc3_remove_requests(dwc, dep, -ECONNRESET); dep->stream_capable = false; dep->type = 0; - dep->flags &= DWC3_EP_TXFIFO_RESIZED; + mask = DWC3_EP_TXFIFO_RESIZED; + /* + * dwc3_remove_requests() can exit early if DWC3 EP delayed stop is + * set. Do not clear DEP flags, so that the end transfer command will + * be reattempted during the next SETUP stage. + */ + if (dep->flags & DWC3_EP_DELAY_STOP) + mask |= (DWC3_EP_DELAY_STOP | DWC3_EP_TRANSFER_STARTED); + dep->flags &= mask; return 0; } @@ -2340,7 +2355,7 @@ static void dwc3_stop_active_transfers(struct dwc3 *dwc) if (!dep) continue; - dwc3_remove_requests(dwc, dep); + dwc3_remove_requests(dwc, dep, -ESHUTDOWN); } } @@ -2440,7 +2455,7 @@ static void __dwc3_gadget_set_speed(struct dwc3 *dwc) static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend) { u32 reg; - u32 timeout = 500; + u32 timeout = 2000; if (pm_runtime_suspended(dwc->dev)) return 0; @@ -2473,6 +2488,7 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend) dwc3_gadget_dctl_write_safe(dwc, reg); do { + usleep_range(1000, 2000); reg = dwc3_readl(dwc->regs, DWC3_DSTS); reg &= DWC3_DSTS_DEVCTRLHLT; } while (--timeout && !(!is_on ^ !reg)); @@ -2501,6 +2517,9 @@ static int dwc3_gadget_soft_disconnect(struct dwc3 *dwc) if (dwc->ep0state != EP0_SETUP_PHASE) { int ret; + if (dwc->delayed_status) + dwc3_ep0_send_delayed_status(dwc); + reinit_completion(&dwc->ep0_in_setup); spin_unlock_irqrestore(&dwc->lock, flags); @@ -2568,6 +2587,8 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on) return 0; } + synchronize_irq(dwc->irq_gadget); + if (!is_on) { ret = dwc3_gadget_soft_disconnect(dwc); } else { @@ -2718,6 +2739,7 @@ static int __dwc3_gadget_start(struct dwc3 *dwc) dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); dep = dwc->eps[0]; + dep->flags = 0; ret = __dwc3_gadget_ep_enable(dep, DWC3_DEPCFG_ACTION_INIT); if (ret) { dev_err(dwc->dev, "failed to enable %s\n", dep->name); @@ -2725,6 +2747,7 @@ static int __dwc3_gadget_start(struct dwc3 *dwc) } dep = dwc->eps[1]; + dep->flags = 0; ret = __dwc3_gadget_ep_enable(dep, DWC3_DEPCFG_ACTION_INIT); if (ret) { dev_err(dwc->dev, "failed to enable %s\n", dep->name); @@ -3568,7 +3591,7 @@ static void dwc3_gadget_endpoint_stream_event(struct dwc3_ep *dep, * streams are updated, and the device controller will not be * triggered to generate ERDY to move the next stream data. To * workaround this and maintain compatibility with various - * hosts, force to reinitate the stream until the host is ready + * hosts, force to reinitiate the stream until the host is ready * instead of waiting for the host to prime the endpoint. */ if (DWC3_VER_IS_WITHIN(DWC32, 100A, ANY)) { @@ -3596,11 +3619,12 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, dep = dwc->eps[epnum]; if (!(dep->flags & DWC3_EP_ENABLED)) { - if (!(dep->flags & DWC3_EP_TRANSFER_STARTED)) + if ((epnum > 1) && !(dep->flags & DWC3_EP_TRANSFER_STARTED)) return; /* Handle only EPCMDCMPLT when EP disabled */ - if (event->endpoint_event != DWC3_DEPEVT_EPCMDCMPLT) + if ((event->endpoint_event != DWC3_DEPEVT_EPCMDCMPLT) && + !(epnum <= 1 && event->endpoint_event == DWC3_DEPEVT_XFERCOMPLETE)) return; } @@ -3695,7 +3719,7 @@ void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, * timeout. Delay issuing the End Transfer command until the Setup TRB is * prepared. */ - if (dwc->ep0state != EP0_SETUP_PHASE && !dwc->delayed_status) { + if (dwc->ep0state != EP0_SETUP_PHASE) { dep->flags |= DWC3_EP_DELAY_STOP; return; } @@ -3763,13 +3787,24 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc) reg &= ~DWC3_DCTL_INITU2ENA; dwc3_gadget_dctl_write_safe(dwc, reg); + dwc->connected = false; + dwc3_disconnect_gadget(dwc); dwc->gadget->speed = USB_SPEED_UNKNOWN; dwc->setup_packet_pending = false; usb_gadget_set_state(dwc->gadget, USB_STATE_NOTATTACHED); - dwc->connected = false; + if (dwc->ep0state != EP0_SETUP_PHASE) { + unsigned int dir; + + dir = !!dwc->ep0_expect_in; + if (dwc->ep0state == EP0_DATA_PHASE) + dwc3_ep0_end_control_data(dwc, dwc->eps[dir]); + else + dwc3_ep0_end_control_data(dwc, dwc->eps[!dir]); + dwc3_ep0_stall_and_restart(dwc); + } } static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) @@ -3867,6 +3902,9 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) u8 lanes = 1; u8 speed; + if (!dwc->softconnect) + return; + reg = dwc3_readl(dwc->regs, DWC3_DSTS); speed = reg & DWC3_DSTS_CONNECTSPD; dwc->speed = speed; @@ -4129,7 +4167,7 @@ static void dwc3_gadget_hibernation_interrupt(struct dwc3 *dwc, unsigned int is_ss = evtinfo & BIT(4); /* - * WORKAROUND: DWC3 revison 2.20a with hibernation support + * WORKAROUND: DWC3 revision 2.20a with hibernation support * have a known issue which can cause USB CV TD.9.23 to fail * randomly. * @@ -4507,12 +4545,17 @@ void dwc3_gadget_exit(struct dwc3 *dwc) int dwc3_gadget_suspend(struct dwc3 *dwc) { + unsigned long flags; + if (!dwc->gadget_driver) return 0; dwc3_gadget_run_stop(dwc, false, false); + + spin_lock_irqsave(&dwc->lock, flags); dwc3_disconnect_gadget(dwc); __dwc3_gadget_stop(dwc); + spin_unlock_irqrestore(&dwc->lock, flags); return 0; } diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h index cb998ba50fea..1975aec8d36d 100644 --- a/drivers/usb/dwc3/trace.h +++ b/drivers/usb/dwc3/trace.h @@ -241,7 +241,7 @@ DECLARE_EVENT_CLASS(dwc3_log_trb, __entry->enqueue = dep->trb_enqueue; __entry->dequeue = dep->trb_dequeue; ), - TP_printk("%s: trb %p (E%d:D%d) buf %08x%08x size %s%d ctrl %08x (%c%c%c%c:%c%c:%s)", + TP_printk("%s: trb %p (E%d:D%d) buf %08x%08x size %s%d ctrl %08x sofn %08x (%c%c%c%c:%c%c:%s)", __get_str(name), __entry->trb, __entry->enqueue, __entry->dequeue, __entry->bph, __entry->bpl, ({char *s; @@ -267,6 +267,7 @@ DECLARE_EVENT_CLASS(dwc3_log_trb, s = ""; } s; }), DWC3_TRB_SIZE_LENGTH(__entry->size), __entry->ctrl, + DWC3_TRB_CTRL_GET_SID_SOFN(__entry->ctrl), __entry->ctrl & DWC3_TRB_CTRL_HWO ? 'H' : 'h', __entry->ctrl & DWC3_TRB_CTRL_LST ? 'L' : 'l', __entry->ctrl & DWC3_TRB_CTRL_CHN ? 'C' : 'c', |