diff options
Diffstat (limited to 'drivers/usb/dwc3/dwc3-qcom.c')
-rw-r--r-- | drivers/usb/dwc3/dwc3-qcom.c | 89 |
1 files changed, 78 insertions, 11 deletions
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index c703d552bbcf..fcaf04483ad0 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -60,12 +60,14 @@ struct dwc3_acpi_pdata { 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; @@ -356,8 +358,10 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) if (ret) dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret); + if (device_may_wakeup(qcom->dev)) + dwc3_qcom_enable_interrupts(qcom); + qcom->is_suspended = true; - dwc3_qcom_enable_interrupts(qcom); return 0; } @@ -370,7 +374,8 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom) if (!qcom->is_suspended) return 0; - dwc3_qcom_disable_interrupts(qcom); + if (device_may_wakeup(qcom->dev)) + dwc3_qcom_disable_interrupts(qcom); for (i = 0; i < qcom->num_clocks; i++) { ret = clk_prepare_enable(qcom->clks[i]); @@ -429,13 +434,15 @@ static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom) 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(pdev, name); + ret = platform_get_irq_byname(pdev_irq, name); else - ret = platform_get_irq(pdev, num); + ret = platform_get_irq(pdev_irq, num); return ret; } @@ -563,11 +570,17 @@ static const struct property_entry dwc3_qcom_acpi_properties[] = { {} }; +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; @@ -597,7 +610,7 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) child_res[0].end = child_res[0].start + qcom->acpi_pdata->dwc3_core_base_size; - irq = platform_get_irq(pdev, 0); + irq = platform_get_irq(pdev_irq, 0); child_res[1].flags = IORESOURCE_IRQ; child_res[1].start = child_res[1].end = irq; @@ -607,16 +620,17 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) goto out; } - ret = platform_device_add_properties(qcom->dwc3, - dwc3_qcom_acpi_properties); + 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) + if (ret) { dev_err(&pdev->dev, "failed to add device\n"); + device_remove_software_node(&qcom->dwc3->dev); + } out: kfree(child_res); @@ -639,16 +653,46 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret); - return ret; + goto node_put; } qcom->dwc3 = of_find_device_by_node(dwc3_np); if (!qcom->dwc3) { + ret = -ENODEV; dev_err(dev, "failed to get dwc3 platform device\n"); - return -ENODEV; } - return 0; +node_put: + of_node_put(dwc3_np); + + return ret; +} + +static struct platform_device * +dwc3_qcom_create_urs_usb_platdev(struct device *dev) +{ + 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) + return NULL; + + return acpi_create_platform_device(adev, NULL); } static int dwc3_qcom_probe(struct platform_device *pdev) @@ -715,6 +759,14 @@ static int dwc3_qcom_probe(struct platform_device *pdev) 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 (!qcom->urs_usb) { + dev_err(dev, "failed to create URS USB platdev\n"); + return -ENODEV; + } + } } qcom->qscratch_base = devm_ioremap_resource(dev, parent_res); @@ -796,6 +848,7 @@ static int dwc3_qcom_remove(struct platform_device *pdev) struct device *dev = &pdev->dev; int i; + device_remove_software_node(&qcom->dwc3->dev); of_platform_depopulate(dev); for (i = qcom->num_clocks - 1; i >= 0; i--) { @@ -877,8 +930,22 @@ static const struct dwc3_acpi_pdata sdm845_acpi_pdata = { .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, + .hs_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); |