diff options
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.c | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 4 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-am62.c | 42 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-of-simple.c | 4 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-pci.c | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-qcom.c | 276 | ||||
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 101 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.h | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/host.c | 61 |
11 files changed, 163 insertions, 333 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 5fc27b20df63..31078f3d41b8 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -131,7 +131,7 @@ config USB_DWC3_QCOM tristate "Qualcomm Platform" depends on ARCH_QCOM || COMPILE_TEST depends on EXTCON || !EXTCON - depends on (OF || ACPI) + depends on OF default USB_DWC3 help Some Qualcomm SoCs use DesignWare Core IP for USB2/3 diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 3e55838c0001..31684cdaaae3 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1519,6 +1519,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) else dwc->sysdev = dwc->dev; + dwc->sys_wakeup = device_may_wakeup(dwc->sysdev); + ret = device_property_read_string(dev, "usb-psy-name", &usb_psy_name); if (ret >= 0) { dwc->usb_psy = power_supply_get_by_name(usb_psy_name); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index e120611a5174..7e80dd3d466b 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -755,6 +755,7 @@ struct dwc3_ep { #define DWC3_EP_PENDING_CLEAR_STALL BIT(11) #define DWC3_EP_TXFIFO_RESIZED BIT(12) #define DWC3_EP_DELAY_STOP BIT(13) +#define DWC3_EP_RESOURCE_ALLOCATED BIT(14) /* This last one is specific to EP0 */ #define DWC3_EP0_DIR_IN BIT(31) @@ -1132,6 +1133,7 @@ struct dwc3_scratchpad_array { * 3 - Reserved * @dis_metastability_quirk: set to disable metastability quirk. * @dis_split_quirk: set to disable split boundary. + * @sys_wakeup: set if the device may do system wakeup. * @wakeup_configured: set if the device is configured for remote wakeup. * @suspended: set to track suspend event due to U3/L2. * @imod_interval: set the interrupt moderation interval in 250ns @@ -1257,6 +1259,7 @@ struct dwc3 { #define DWC31_REVISION_170A 0x3137302a #define DWC31_REVISION_180A 0x3138302a #define DWC31_REVISION_190A 0x3139302a +#define DWC31_REVISION_200A 0x3230302a #define DWC32_REVISION_ANY 0x0 #define DWC32_REVISION_100A 0x3130302a @@ -1355,6 +1358,7 @@ struct dwc3 { unsigned dis_split_quirk:1; unsigned async_callbacks:1; + unsigned sys_wakeup:1; unsigned wakeup_configured:1; unsigned suspended:1; diff --git a/drivers/usb/dwc3/dwc3-am62.c b/drivers/usb/dwc3/dwc3-am62.c index 90a587bc29b7..fad151e78fd6 100644 --- a/drivers/usb/dwc3/dwc3-am62.c +++ b/drivers/usb/dwc3/dwc3-am62.c @@ -97,9 +97,15 @@ #define USBSS_VBUS_STAT_SESSVALID BIT(2) #define USBSS_VBUS_STAT_VBUSVALID BIT(0) -/* Mask for PHY PLL REFCLK */ +/* USB_PHY_CTRL register bits in CTRL_MMR */ +#define PHY_CORE_VOLTAGE_MASK BIT(31) #define PHY_PLL_REFCLK_MASK GENMASK(3, 0) +/* USB PHY2 register offsets */ +#define USB_PHY_PLL_REG12 0x130 +#define USB_PHY_PLL_LDO_REF_EN BIT(5) +#define USB_PHY_PLL_LDO_REF_EN_EN BIT(4) + #define DWC3_AM62_AUTOSUSPEND_DELAY 100 struct dwc3_am62 { @@ -162,6 +168,13 @@ static int phy_syscon_pll_refclk(struct dwc3_am62 *am62) am62->offset = args.args[0]; + /* Core voltage. PHY_CORE_VOLTAGE bit Recommended to be 0 always */ + ret = regmap_update_bits(am62->syscon, am62->offset, PHY_CORE_VOLTAGE_MASK, 0); + if (ret) { + dev_err(dev, "failed to set phy core voltage\n"); + return ret; + } + ret = regmap_update_bits(am62->syscon, am62->offset, PHY_PLL_REFCLK_MASK, am62->rate_code); if (ret) { dev_err(dev, "failed to set phy pll reference clock rate\n"); @@ -176,8 +189,9 @@ static int dwc3_ti_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device_node *node = pdev->dev.of_node; struct dwc3_am62 *am62; - int i, ret; unsigned long rate; + void __iomem *phy; + int i, ret; u32 reg; am62 = devm_kzalloc(dev, sizeof(*am62), GFP_KERNEL); @@ -219,6 +233,17 @@ static int dwc3_ti_probe(struct platform_device *pdev) if (ret) return ret; + /* Workaround Errata i2409 */ + phy = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(phy)) { + dev_err(dev, "can't map PHY IOMEM resource. Won't apply i2409 fix.\n"); + phy = NULL; + } else { + reg = readl(phy + USB_PHY_PLL_REG12); + reg |= USB_PHY_PLL_LDO_REF_EN | USB_PHY_PLL_LDO_REF_EN_EN; + writel(reg, phy + USB_PHY_PLL_REG12); + } + /* VBUS divider select */ am62->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider"); reg = dwc3_ti_readl(am62, USBSS_PHY_CONFIG); @@ -267,21 +292,15 @@ err_pm_disable: return ret; } -static int dwc3_ti_remove_core(struct device *dev, void *c) -{ - struct platform_device *pdev = to_platform_device(dev); - - platform_device_unregister(pdev); - return 0; -} - static void dwc3_ti_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct dwc3_am62 *am62 = platform_get_drvdata(pdev); u32 reg; - device_for_each_child(dev, NULL, dwc3_ti_remove_core); + pm_runtime_get_sync(dev); + device_init_wakeup(dev, false); + of_platform_depopulate(dev); /* Clear mode valid bit */ reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL); @@ -289,7 +308,6 @@ static void dwc3_ti_remove(struct platform_device *pdev) dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg); pm_runtime_put_sync(dev); - clk_disable_unprepare(am62->usb2_refclk); pm_runtime_disable(dev); pm_runtime_set_suspended(dev); } diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index d1539fc9eabd..be7be00ecb34 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -52,8 +52,7 @@ static int dwc3_of_simple_probe(struct platform_device *pdev) if (of_device_is_compatible(np, "rockchip,rk3399-dwc3")) simple->need_reset = true; - simple->resets = of_reset_control_array_get(np, false, true, - true); + simple->resets = of_reset_control_array_get_optional_exclusive(np); if (IS_ERR(simple->resets)) { ret = PTR_ERR(simple->resets); dev_err(dev, "failed to get device resets, err=%d\n", ret); @@ -173,6 +172,7 @@ static const struct of_device_id of_dwc3_simple_match[] = { { .compatible = "sprd,sc9860-dwc3" }, { .compatible = "allwinner,sun50i-h6-dwc3" }, { .compatible = "hisilicon,hi3670-dwc3" }, + { .compatible = "hisilicon,hi3798mv200-dwc3" }, { .compatible = "intel,keembay-dwc3" }, { /* Sentinel */ } }; diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 39564e17f3b0..497deed38c0c 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -51,7 +51,6 @@ #define PCI_DEVICE_ID_INTEL_MTLP 0x7ec1 #define PCI_DEVICE_ID_INTEL_MTLS 0x7f6f #define PCI_DEVICE_ID_INTEL_MTL 0x7e7e -#define PCI_DEVICE_ID_INTEL_ARLH 0x7ec1 #define PCI_DEVICE_ID_INTEL_ARLH_PCH 0x777e #define PCI_DEVICE_ID_INTEL_TGL 0x9a15 #define PCI_DEVICE_ID_AMD_MR 0x163a @@ -423,7 +422,6 @@ static const struct pci_device_id dwc3_pci_id_table[] = { { PCI_DEVICE_DATA(INTEL, MTLP, &dwc3_pci_intel_swnode) }, { PCI_DEVICE_DATA(INTEL, MTL, &dwc3_pci_intel_swnode) }, { PCI_DEVICE_DATA(INTEL, MTLS, &dwc3_pci_intel_swnode) }, - { PCI_DEVICE_DATA(INTEL, ARLH, &dwc3_pci_intel_swnode) }, { PCI_DEVICE_DATA(INTEL, ARLH_PCH, &dwc3_pci_intel_swnode) }, { PCI_DEVICE_DATA(INTEL, TGL, &dwc3_pci_intel_swnode) }, diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index dbd6a5b2b289..f6b2fab49d5e 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -4,7 +4,6 @@ * Inspired by dwc3-of-simple.c */ -#include <linux/acpi.h> #include <linux/io.h> #include <linux/of.h> #include <linux/clk.h> @@ -53,22 +52,10 @@ #define APPS_USB_AVG_BW 0 #define APPS_USB_PEAK_BW MBps_to_icc(40) -struct dwc3_acpi_pdata { - u32 qscratch_base_offset; - u32 qscratch_base_size; - u32 dwc3_core_base_size; - int qusb2_phy_irq_index; - int dp_hs_phy_irq_index; - int dm_hs_phy_irq_index; - int ss_phy_irq_index; - bool is_urs; -}; - struct dwc3_qcom { struct device *dev; void __iomem *qscratch_base; struct platform_device *dwc3; - struct platform_device *urs_usb; struct clk **clks; int num_clocks; struct reset_control *resets; @@ -84,8 +71,6 @@ struct dwc3_qcom { struct notifier_block vbus_nb; struct notifier_block host_nb; - const struct dwc3_acpi_pdata *acpi_pdata; - enum usb_dr_mode mode; bool is_suspended; bool pm_suspended; @@ -248,9 +233,6 @@ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom) struct device *dev = qcom->dev; int ret; - if (has_acpi_companion(dev)) - return 0; - qcom->icc_path_ddr = of_icc_get(dev, "usb-ddr"); if (IS_ERR(qcom->icc_path_ddr)) { return dev_err_probe(dev, PTR_ERR(qcom->icc_path_ddr), @@ -519,31 +501,13 @@ static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom) PIPE_UTMI_CLK_DIS); } -static int dwc3_qcom_get_irq(struct platform_device *pdev, - const char *name, int num) -{ - struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb : pdev; - struct device_node *np = pdev->dev.of_node; - int ret; - - if (np) - ret = platform_get_irq_byname_optional(pdev_irq, name); - else - ret = platform_get_irq_optional(pdev_irq, num); - - return ret; -} - static int dwc3_qcom_setup_irq(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - const struct dwc3_acpi_pdata *pdata = qcom->acpi_pdata; int irq; int ret; - irq = dwc3_qcom_get_irq(pdev, "qusb2_phy", - pdata ? pdata->qusb2_phy_irq_index : -1); + irq = platform_get_irq_byname_optional(pdev, "qusb2_phy"); if (irq > 0) { /* Keep wakeup interrupts disabled until suspend */ ret = devm_request_threaded_irq(qcom->dev, irq, NULL, @@ -557,8 +521,7 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) qcom->qusb2_phy_irq = irq; } - irq = dwc3_qcom_get_irq(pdev, "dp_hs_phy_irq", - pdata ? pdata->dp_hs_phy_irq_index : -1); + irq = platform_get_irq_byname_optional(pdev, "dp_hs_phy_irq"); if (irq > 0) { ret = devm_request_threaded_irq(qcom->dev, irq, NULL, qcom_dwc3_resume_irq, @@ -571,8 +534,7 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) qcom->dp_hs_phy_irq = irq; } - irq = dwc3_qcom_get_irq(pdev, "dm_hs_phy_irq", - pdata ? pdata->dm_hs_phy_irq_index : -1); + irq = platform_get_irq_byname_optional(pdev, "dm_hs_phy_irq"); if (irq > 0) { ret = devm_request_threaded_irq(qcom->dev, irq, NULL, qcom_dwc3_resume_irq, @@ -585,8 +547,7 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) qcom->dm_hs_phy_irq = irq; } - irq = dwc3_qcom_get_irq(pdev, "ss_phy_irq", - pdata ? pdata->ss_phy_irq_index : -1); + irq = platform_get_irq_byname_optional(pdev, "ss_phy_irq"); if (irq > 0) { ret = devm_request_threaded_irq(qcom->dev, irq, NULL, qcom_dwc3_resume_irq, @@ -649,88 +610,6 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) return 0; } -static const struct property_entry dwc3_qcom_acpi_properties[] = { - PROPERTY_ENTRY_STRING("dr_mode", "host"), - {} -}; - -static const struct software_node dwc3_qcom_swnode = { - .properties = dwc3_qcom_acpi_properties, -}; - -static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) -{ - struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct device *dev = &pdev->dev; - struct resource *res, *child_res = NULL; - struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb : - pdev; - int irq; - int ret; - - qcom->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); - if (!qcom->dwc3) - return -ENOMEM; - - qcom->dwc3->dev.parent = dev; - qcom->dwc3->dev.type = dev->type; - qcom->dwc3->dev.dma_mask = dev->dma_mask; - qcom->dwc3->dev.dma_parms = dev->dma_parms; - qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask; - - child_res = kcalloc(2, sizeof(*child_res), GFP_KERNEL); - if (!child_res) { - platform_device_put(qcom->dwc3); - return -ENOMEM; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "failed to get memory resource\n"); - ret = -ENODEV; - goto out; - } - - child_res[0].flags = res->flags; - child_res[0].start = res->start; - child_res[0].end = child_res[0].start + - qcom->acpi_pdata->dwc3_core_base_size; - - irq = platform_get_irq(pdev_irq, 0); - if (irq < 0) { - ret = irq; - goto out; - } - child_res[1].flags = IORESOURCE_IRQ; - child_res[1].start = child_res[1].end = irq; - - ret = platform_device_add_resources(qcom->dwc3, child_res, 2); - if (ret) { - dev_err(&pdev->dev, "failed to add resources\n"); - goto out; - } - - ret = device_add_software_node(&qcom->dwc3->dev, &dwc3_qcom_swnode); - if (ret < 0) { - dev_err(&pdev->dev, "failed to add properties\n"); - goto out; - } - - ret = platform_device_add(qcom->dwc3); - if (ret) { - dev_err(&pdev->dev, "failed to add device\n"); - device_remove_software_node(&qcom->dwc3->dev); - goto out; - } - kfree(child_res); - return 0; - -out: - platform_device_put(qcom->dwc3); - kfree(child_res); - return ret; -} - static int dwc3_qcom_of_register_core(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); @@ -763,57 +642,12 @@ node_put: return ret; } -static struct platform_device *dwc3_qcom_create_urs_usb_platdev(struct device *dev) -{ - struct platform_device *urs_usb = NULL; - struct fwnode_handle *fwh; - struct acpi_device *adev; - char name[8]; - int ret; - int id; - - /* Figure out device id */ - ret = sscanf(fwnode_get_name(dev->fwnode), "URS%d", &id); - if (!ret) - return NULL; - - /* Find the child using name */ - snprintf(name, sizeof(name), "USB%d", id); - fwh = fwnode_get_named_child_node(dev->fwnode, name); - if (!fwh) - return NULL; - - adev = to_acpi_device_node(fwh); - if (!adev) - goto err_put_handle; - - urs_usb = acpi_create_platform_device(adev, NULL); - if (IS_ERR_OR_NULL(urs_usb)) - goto err_put_handle; - - return urs_usb; - -err_put_handle: - fwnode_handle_put(fwh); - - return urs_usb; -} - -static void dwc3_qcom_destroy_urs_usb_platdev(struct platform_device *urs_usb) -{ - struct fwnode_handle *fwh = urs_usb->dev.fwnode; - - platform_device_unregister(urs_usb); - fwnode_handle_put(fwh); -} - static int dwc3_qcom_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; struct dwc3_qcom *qcom; - struct resource *res, *parent_res = NULL; - struct resource local_res; + struct resource *res; int ret, i; bool ignore_pipe_clk; bool wakeup_source; @@ -825,14 +659,6 @@ static int dwc3_qcom_probe(struct platform_device *pdev) platform_set_drvdata(pdev, qcom); qcom->dev = &pdev->dev; - if (has_acpi_companion(dev)) { - qcom->acpi_pdata = acpi_device_get_match_data(dev); - if (!qcom->acpi_pdata) { - dev_err(&pdev->dev, "no supporting ACPI device data\n"); - return -EINVAL; - } - } - qcom->resets = devm_reset_control_array_get_optional_exclusive(dev); if (IS_ERR(qcom->resets)) { return dev_err_probe(&pdev->dev, PTR_ERR(qcom->resets), @@ -861,40 +687,16 @@ static int dwc3_qcom_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (np) { - parent_res = res; - } else { - memcpy(&local_res, res, sizeof(struct resource)); - parent_res = &local_res; - - parent_res->start = res->start + - qcom->acpi_pdata->qscratch_base_offset; - parent_res->end = parent_res->start + - qcom->acpi_pdata->qscratch_base_size; - - if (qcom->acpi_pdata->is_urs) { - qcom->urs_usb = dwc3_qcom_create_urs_usb_platdev(dev); - if (IS_ERR_OR_NULL(qcom->urs_usb)) { - dev_err(dev, "failed to create URS USB platdev\n"); - if (!qcom->urs_usb) - ret = -ENODEV; - else - ret = PTR_ERR(qcom->urs_usb); - goto clk_disable; - } - } - } - - qcom->qscratch_base = devm_ioremap_resource(dev, parent_res); + qcom->qscratch_base = devm_ioremap_resource(dev, res); if (IS_ERR(qcom->qscratch_base)) { ret = PTR_ERR(qcom->qscratch_base); - goto free_urs; + goto clk_disable; } ret = dwc3_qcom_setup_irq(pdev); if (ret) { dev_err(dev, "failed to setup IRQs, err=%d\n", ret); - goto free_urs; + goto clk_disable; } /* @@ -906,14 +708,10 @@ static int dwc3_qcom_probe(struct platform_device *pdev) if (ignore_pipe_clk) dwc3_qcom_select_utmi_clk(qcom); - if (np) - ret = dwc3_qcom_of_register_core(pdev); - else - ret = dwc3_qcom_acpi_register_core(pdev); - + ret = dwc3_qcom_of_register_core(pdev); if (ret) { dev_err(dev, "failed to register DWC3 Core, err=%d\n", ret); - goto free_urs; + goto clk_disable; } ret = dwc3_qcom_interconnect_init(qcom); @@ -945,16 +743,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) interconnect_exit: dwc3_qcom_interconnect_exit(qcom); depopulate: - if (np) { - of_platform_depopulate(&pdev->dev); - } else { - device_remove_software_node(&qcom->dwc3->dev); - platform_device_del(qcom->dwc3); - } + of_platform_depopulate(&pdev->dev); platform_device_put(qcom->dwc3); -free_urs: - if (qcom->urs_usb) - dwc3_qcom_destroy_urs_usb_platdev(qcom->urs_usb); clk_disable: for (i = qcom->num_clocks - 1; i >= 0; i--) { clk_disable_unprepare(qcom->clks[i]); @@ -969,21 +759,12 @@ reset_assert: static void dwc3_qcom_remove(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; int i; - if (np) { - of_platform_depopulate(&pdev->dev); - } else { - device_remove_software_node(&qcom->dwc3->dev); - platform_device_del(qcom->dwc3); - } + of_platform_depopulate(&pdev->dev); platform_device_put(qcom->dwc3); - if (qcom->urs_usb) - dwc3_qcom_destroy_urs_usb_platdev(qcom->urs_usb); - for (i = qcom->num_clocks - 1; i >= 0; i--) { clk_disable_unprepare(qcom->clks[i]); clk_put(qcom->clks[i]); @@ -1053,38 +834,6 @@ static const struct of_device_id dwc3_qcom_of_match[] = { }; MODULE_DEVICE_TABLE(of, dwc3_qcom_of_match); -#ifdef CONFIG_ACPI -static const struct dwc3_acpi_pdata sdm845_acpi_pdata = { - .qscratch_base_offset = SDM845_QSCRATCH_BASE_OFFSET, - .qscratch_base_size = SDM845_QSCRATCH_SIZE, - .dwc3_core_base_size = SDM845_DWC3_CORE_SIZE, - .qusb2_phy_irq_index = 1, - .dp_hs_phy_irq_index = 4, - .dm_hs_phy_irq_index = 3, - .ss_phy_irq_index = 2 -}; - -static const struct dwc3_acpi_pdata sdm845_acpi_urs_pdata = { - .qscratch_base_offset = SDM845_QSCRATCH_BASE_OFFSET, - .qscratch_base_size = SDM845_QSCRATCH_SIZE, - .dwc3_core_base_size = SDM845_DWC3_CORE_SIZE, - .qusb2_phy_irq_index = 1, - .dp_hs_phy_irq_index = 4, - .dm_hs_phy_irq_index = 3, - .ss_phy_irq_index = 2, - .is_urs = true, -}; - -static const struct acpi_device_id dwc3_qcom_acpi_match[] = { - { "QCOM2430", (unsigned long)&sdm845_acpi_pdata }, - { "QCOM0304", (unsigned long)&sdm845_acpi_urs_pdata }, - { "QCOM0497", (unsigned long)&sdm845_acpi_urs_pdata }, - { "QCOM04A6", (unsigned long)&sdm845_acpi_pdata }, - { }, -}; -MODULE_DEVICE_TABLE(acpi, dwc3_qcom_acpi_match); -#endif - static struct platform_driver dwc3_qcom_driver = { .probe = dwc3_qcom_probe, .remove_new = dwc3_qcom_remove, @@ -1092,7 +841,6 @@ static struct platform_driver dwc3_qcom_driver = { .name = "dwc3-qcom", .pm = &dwc3_qcom_dev_pm_ops, .of_match_table = dwc3_qcom_of_match, - .acpi_match_table = ACPI_PTR(dwc3_qcom_acpi_match), }, }; diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 6ae8a36f21cf..72bb722da2f2 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -646,6 +646,7 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) return -EINVAL; case USB_STATE_ADDRESS: + dwc3_gadget_start_config(dwc, 2); dwc3_gadget_clear_tx_fifos(dwc); ret = dwc3_ep0_delegate_req(dwc, ctrl); diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 28f49400f3e8..4df2661f6675 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -519,77 +519,56 @@ static void dwc3_free_trb_pool(struct dwc3_ep *dep) static int dwc3_gadget_set_xfer_resource(struct dwc3_ep *dep) { struct dwc3_gadget_ep_cmd_params params; + int ret; + + if (dep->flags & DWC3_EP_RESOURCE_ALLOCATED) + return 0; memset(¶ms, 0x00, sizeof(params)); params.param0 = DWC3_DEPXFERCFG_NUM_XFER_RES(1); - return dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_SETTRANSFRESOURCE, + ret = dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_SETTRANSFRESOURCE, ¶ms); + if (ret) + return ret; + + dep->flags |= DWC3_EP_RESOURCE_ALLOCATED; + return 0; } /** - * dwc3_gadget_start_config - configure ep resources - * @dep: endpoint that is being enabled - * - * Issue a %DWC3_DEPCMD_DEPSTARTCFG command to @dep. After the command's - * completion, it will set Transfer Resource for all available endpoints. - * - * The assignment of transfer resources cannot perfectly follow the data book - * due to the fact that the controller driver does not have all knowledge of the - * configuration in advance. It is given this information piecemeal by the - * composite gadget framework after every SET_CONFIGURATION and - * SET_INTERFACE. Trying to follow the databook programming model in this - * scenario can cause errors. For two reasons: - * - * 1) The databook says to do %DWC3_DEPCMD_DEPSTARTCFG for every - * %USB_REQ_SET_CONFIGURATION and %USB_REQ_SET_INTERFACE (8.1.5). This is - * incorrect in the scenario of multiple interfaces. - * - * 2) The databook does not mention doing more %DWC3_DEPCMD_DEPXFERCFG for new - * endpoint on alt setting (8.1.6). - * - * The following simplified method is used instead: + * dwc3_gadget_start_config - reset endpoint resources + * @dwc: pointer to the DWC3 context + * @resource_index: DEPSTARTCFG.XferRscIdx value (must be 0 or 2) * - * All hardware endpoints can be assigned a transfer resource and this setting - * will stay persistent until either a core reset or hibernation. So whenever we - * do a %DWC3_DEPCMD_DEPSTARTCFG(0) we can go ahead and do - * %DWC3_DEPCMD_DEPXFERCFG for every hardware endpoint as well. We are - * guaranteed that there are as many transfer resources as endpoints. + * Set resource_index=0 to reset all endpoints' resources allocation. Do this as + * part of the power-on/soft-reset initialization. * - * This function is called for each endpoint when it is being enabled but is - * triggered only when called for EP0-out, which always happens first, and which - * should only happen in one of the above conditions. + * Set resource_index=2 to reset only non-control endpoints' resources. Do this + * on receiving the SET_CONFIGURATION request or hibernation resume. */ -static int dwc3_gadget_start_config(struct dwc3_ep *dep) +int dwc3_gadget_start_config(struct dwc3 *dwc, unsigned int resource_index) { struct dwc3_gadget_ep_cmd_params params; - struct dwc3 *dwc; u32 cmd; int i; int ret; - if (dep->number) - return 0; + if (resource_index != 0 && resource_index != 2) + return -EINVAL; memset(¶ms, 0x00, sizeof(params)); cmd = DWC3_DEPCMD_DEPSTARTCFG; - dwc = dep->dwc; + cmd |= DWC3_DEPCMD_PARAM(resource_index); - ret = dwc3_send_gadget_ep_cmd(dep, cmd, ¶ms); + ret = dwc3_send_gadget_ep_cmd(dwc->eps[0], cmd, ¶ms); if (ret) return ret; - for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) { - struct dwc3_ep *dep = dwc->eps[i]; - - if (!dep) - continue; - - ret = dwc3_gadget_set_xfer_resource(dep); - if (ret) - return ret; - } + /* Reset resource allocation flags */ + for (i = resource_index; i < dwc->num_eps && dwc->eps[i]; i++) + dwc->eps[i]->flags &= ~DWC3_EP_RESOURCE_ALLOCATED; return 0; } @@ -884,16 +863,18 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action) ret = dwc3_gadget_resize_tx_fifos(dep); if (ret) return ret; - - ret = dwc3_gadget_start_config(dep); - if (ret) - return ret; } ret = dwc3_gadget_set_ep_config(dep, action); if (ret) return ret; + if (!(dep->flags & DWC3_EP_RESOURCE_ALLOCATED)) { + ret = dwc3_gadget_set_xfer_resource(dep); + if (ret) + return ret; + } + if (!(dep->flags & DWC3_EP_ENABLED)) { struct dwc3_trb *trb_st_hw; struct dwc3_trb *trb_link; @@ -1047,7 +1028,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) dep->stream_capable = false; dep->type = 0; - mask = DWC3_EP_TXFIFO_RESIZED; + mask = DWC3_EP_TXFIFO_RESIZED | DWC3_EP_RESOURCE_ALLOCATED; /* * 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 @@ -2913,6 +2894,12 @@ static int __dwc3_gadget_start(struct dwc3 *dwc) /* Start with SuperSpeed Default */ dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); + ret = dwc3_gadget_start_config(dwc, 0); + if (ret) { + dev_err(dwc->dev, "failed to config endpoints\n"); + return ret; + } + dep = dwc->eps[0]; dep->flags = 0; ret = __dwc3_gadget_ep_enable(dep, DWC3_DEPCFG_ACTION_INIT); @@ -2968,6 +2955,9 @@ static int dwc3_gadget_start(struct usb_gadget *g, dwc->gadget_driver = driver; spin_unlock_irqrestore(&dwc->lock, flags); + if (dwc->sys_wakeup) + device_wakeup_enable(dwc->sysdev); + return 0; } @@ -2983,6 +2973,9 @@ static int dwc3_gadget_stop(struct usb_gadget *g) struct dwc3 *dwc = gadget_to_dwc(g); unsigned long flags; + if (dwc->sys_wakeup) + device_wakeup_disable(dwc->sysdev); + spin_lock_irqsave(&dwc->lock, flags); dwc->gadget_driver = NULL; dwc->max_cfg_eps = 0; @@ -3428,7 +3421,7 @@ static int dwc3_gadget_ep_reclaim_trb_sg(struct dwc3_ep *dep, struct dwc3_request *req, const struct dwc3_event_depevt *event, int status) { - struct dwc3_trb *trb = &dep->trb_pool[dep->trb_dequeue]; + struct dwc3_trb *trb; struct scatterlist *sg = req->sg; struct scatterlist *s; unsigned int num_queued = req->num_queued_sgs; @@ -4664,6 +4657,10 @@ int dwc3_gadget_init(struct dwc3 *dwc) else dwc3_gadget_set_speed(dwc->gadget, dwc->maximum_speed); + /* No system wakeup if no gadget driver bound */ + if (dwc->sys_wakeup) + device_wakeup_disable(dwc->sysdev); + return 0; err5: diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h index 55a56cf67d73..d73e735e4081 100644 --- a/drivers/usb/dwc3/gadget.h +++ b/drivers/usb/dwc3/gadget.h @@ -119,6 +119,7 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol); void dwc3_ep0_send_delayed_status(struct dwc3 *dwc); void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool interrupt); +int dwc3_gadget_start_config(struct dwc3 *dwc, unsigned int resource_index); /** * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index 43230915323c..0204787df81d 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -11,8 +11,52 @@ #include <linux/of.h> #include <linux/platform_device.h> +#include "../host/xhci-port.h" +#include "../host/xhci-ext-caps.h" +#include "../host/xhci-caps.h" #include "core.h" +#define XHCI_HCSPARAMS1 0x4 +#define XHCI_PORTSC_BASE 0x400 + +/** + * dwc3_power_off_all_roothub_ports - Power off all Root hub ports + * @dwc: Pointer to our controller context structure + */ +static void dwc3_power_off_all_roothub_ports(struct dwc3 *dwc) +{ + void __iomem *xhci_regs; + u32 op_regs_base; + int port_num; + u32 offset; + u32 reg; + int i; + + /* xhci regs is not mapped yet, do it temperary here */ + if (dwc->xhci_resources[0].start) { + xhci_regs = ioremap(dwc->xhci_resources[0].start, DWC3_XHCI_REGS_END); + if (!xhci_regs) { + dev_err(dwc->dev, "Failed to ioremap xhci_regs\n"); + return; + } + + op_regs_base = HC_LENGTH(readl(xhci_regs)); + reg = readl(xhci_regs + XHCI_HCSPARAMS1); + port_num = HCS_MAX_PORTS(reg); + + for (i = 1; i <= port_num; i++) { + offset = op_regs_base + XHCI_PORTSC_BASE + 0x10 * (i - 1); + reg = readl(xhci_regs + offset); + reg &= ~PORT_POWER; + writel(reg, xhci_regs + offset); + } + + iounmap(xhci_regs); + } else { + dev_err(dwc->dev, "xhci base reg invalid\n"); + } +} + static void dwc3_host_fill_xhci_irq_res(struct dwc3 *dwc, int irq, char *name) { @@ -66,6 +110,12 @@ int dwc3_host_init(struct dwc3 *dwc) int ret, irq; int prop_idx = 0; + /* + * Some platforms need to power off all Root hub ports immediately after DWC3 set to host + * mode to avoid VBUS glitch happen when xhci get reset later. + */ + dwc3_power_off_all_roothub_ports(dwc); + irq = dwc3_host_get_irq(dwc); if (irq < 0) return irq; @@ -123,6 +173,14 @@ int dwc3_host_init(struct dwc3 *dwc) goto err; } + if (dwc->sys_wakeup) { + /* Restore wakeup setting if switched from device */ + device_wakeup_enable(dwc->sysdev); + + /* Pass on wakeup setting to the new xhci platform device */ + device_init_wakeup(&xhci->dev, true); + } + return 0; err: platform_device_put(xhci); @@ -131,6 +189,9 @@ err: void dwc3_host_exit(struct dwc3 *dwc) { + if (dwc->sys_wakeup) + device_init_wakeup(&dwc->xhci->dev, false); + platform_device_unregister(dwc->xhci); dwc->xhci = NULL; } |