diff options
| -rw-r--r-- | Documentation/devicetree/bindings/usb/omap-usb.txt | 28 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-omap.c | 45 |
2 files changed, 49 insertions, 24 deletions
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt index 1ef0ce7..1b9f55f 100644 --- a/Documentation/devicetree/bindings/usb/omap-usb.txt +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt @@ -41,6 +41,34 @@ Board specific device node entry power = <50>; }; +OMAP DWC3 GLUE + - compatible : Should be "ti,dwc3" + - ti,hwmods : Should be "usb_otg_ss" + - reg : Address and length of the register set for the device. + - interrupts : The irq number of this device that is used to interrupt the + MPU + - #address-cells, #size-cells : Must be present if the device has sub-nodes + - utmi-mode : controls the source of UTMI/PIPE status for VBUS and OTG ID. + It should be set to "1" for HW mode and "2" for SW mode. + - ranges: the child address space are mapped 1:1 onto the parent address space + +Sub-nodes: +The dwc3 core should be added as subnode to omap dwc3 glue. +- dwc3 : + The binding details of dwc3 can be found in: + Documentation/devicetree/bindings/usb/dwc3.txt + +omap_dwc3 { + compatible = "ti,dwc3"; + ti,hwmods = "usb_otg_ss"; + reg = <0x4a020000 0x1ff>; + interrupts = <0 93 4>; + #address-cells = <1>; + #size-cells = <1>; + utmi-mode = <2>; + ranges; +}; + OMAP CONTROL USB Required properties: diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index afa05e3..e1206b4 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -316,11 +316,11 @@ static int dwc3_omap_probe(struct platform_device *pdev) struct resource *res; struct device *dev = &pdev->dev; - int size; int ret = -ENOMEM; int irq; - const u32 *utmi_mode; + int utmi_mode = 0; + u32 reg; void __iomem *base; @@ -334,13 +334,13 @@ static int dwc3_omap_probe(struct platform_device *pdev) platform_set_drvdata(pdev, omap); - irq = platform_get_irq(pdev, 1); + irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(dev, "missing IRQ resource\n"); return -EINVAL; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "missing memory base resource\n"); return -EINVAL; @@ -387,25 +387,22 @@ static int dwc3_omap_probe(struct platform_device *pdev) reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS); - utmi_mode = of_get_property(node, "utmi-mode", &size); - if (utmi_mode && size == sizeof(*utmi_mode)) { - reg |= *utmi_mode; - } else { - if (!pdata) { - dev_dbg(dev, "missing platform data\n"); - } else { - switch (pdata->utmi_mode) { - case DWC3_OMAP_UTMI_MODE_SW: - reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE; - break; - case DWC3_OMAP_UTMI_MODE_HW: - reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE; - break; - default: - dev_dbg(dev, "UNKNOWN utmi mode %d\n", - pdata->utmi_mode); - } - } + if (node) + of_property_read_u32(node, "utmi-mode", &utmi_mode); + else if (pdata) + utmi_mode = pdata->utmi_mode; + else + dev_dbg(dev, "missing platform data\n"); + + switch (utmi_mode) { + case DWC3_OMAP_UTMI_MODE_SW: + reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE; + break; + case DWC3_OMAP_UTMI_MODE_HW: + reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE; + break; + default: + dev_dbg(dev, "UNKNOWN utmi mode %d\n", utmi_mode); } dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, reg); @@ -465,7 +462,7 @@ static int dwc3_omap_remove(struct platform_device *pdev) static const struct of_device_id of_dwc3_match[] = { { - "ti,dwc3", + .compatible = "ti,dwc3" }, { }, }; |