diff options
| author | Kishon Vijay Abraham I <kishon@ti.com> | 2012-09-06 14:57:09 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-09-06 17:16:07 (GMT) |
| commit | f8515f0639c337b6fac2f24073368ae834053a96 (patch) | |
| tree | 8386ffb5be8916ce2fa033306f0aec961ad62c87 | |
| parent | ff0a1f39400a8d2c02343bd22d295517d72e58ec (diff) | |
| download | linux-f8515f0639c337b6fac2f24073368ae834053a96.tar.xz | |
usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl4030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | Documentation/devicetree/bindings/usb/twlxxxx-usb.txt | 19 | ||||
| -rw-r--r-- | drivers/usb/otg/twl4030-usb.c | 26 |
2 files changed, 39 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/usb/twlxxxx-usb.txt b/Documentation/devicetree/bindings/usb/twlxxxx-usb.txt index 930f9ff..36b9aed 100644 --- a/Documentation/devicetree/bindings/usb/twlxxxx-usb.txt +++ b/Documentation/devicetree/bindings/usb/twlxxxx-usb.txt @@ -19,3 +19,22 @@ Board specific device node entry &twl6030-usb { usb-supply = <&vusb>; }; + +TWL4030 USB PHY AND COMPARATOR + - compatible : Should be "ti,twl4030-usb" + - interrupts : The interrupt numbers to the cpu should be specified. First + interrupt number is the otg interrupt number that raises ID interrupts + and VBUS interrupts. The second interrupt number is optional. + - <supply-name>-supply : phandle to the regulator device tree node. + <supply-name> should be vusb1v5, vusb1v8 and vusb3v1 + - usb_mode : The mode used by the phy to connect to the controller. "1" + specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode. + +twl4030-usb { + compatible = "ti,twl4030-usb"; + interrupts = < 10 4 >; + usb1v5-supply = <&vusb1v5>; + usb1v8-supply = <&vusb1v8>; + usb3v1-supply = <&vusb3v1>; + usb_mode = <1>; +}; diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c index 523cad5..f0d2e75 100644 --- a/drivers/usb/otg/twl4030-usb.c +++ b/drivers/usb/otg/twl4030-usb.c @@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev) struct twl4030_usb *twl; int status, err; struct usb_otg *otg; - - if (!pdata) { - dev_dbg(&pdev->dev, "platform_data not available\n"); - return -EINVAL; - } + struct device_node *np = pdev->dev.of_node; twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL); if (!twl) return -ENOMEM; + if (np) + of_property_read_u32(np, "usb_mode", + (enum twl4030_usb_mode *)&twl->usb_mode); + else if (pdata) + twl->usb_mode = pdata->usb_mode; + else { + dev_err(&pdev->dev, "twl4030 initialized without pdata\n"); + return -EINVAL; + } + otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL); if (!otg) return -ENOMEM; twl->dev = &pdev->dev; twl->irq = platform_get_irq(pdev, 0); - twl->usb_mode = pdata->usb_mode; twl->vbus_supplied = false; twl->asleep = 1; twl->linkstat = OMAP_MUSB_UNKNOWN; @@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id twl4030_usb_id_table[] = { + { .compatible = "ti,twl4030-usb" }, + {} +}; +MODULE_DEVICE_TABLE(of, twl4030_usb_id_table); +#endif + static struct platform_driver twl4030_usb_driver = { .probe = twl4030_usb_probe, .remove = __exit_p(twl4030_usb_remove), .driver = { .name = "twl4030_usb", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(twl4030_usb_id_table), }, }; |