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usb: twl4030: Add device tree support for twl4030 usb

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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>
This commit is contained in:
Kishon Vijay Abraham I 2012-09-06 20:27:09 +05:30 committed by Felipe Balbi
parent ff0a1f3940
commit f8515f0639
2 changed files with 39 additions and 6 deletions
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19
Documentation/devicetree/bindings/usb/twlxxxx-usb.txt
View File

@ -19,3 +19,22 @@ Board specific device node entry
&twl6030-usb { &twl6030-usb {
usb-supply = <&vusb>; 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>;
};

26
drivers/usb/otg/twl4030-usb.c
View File

@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
struct twl4030_usb *twl; struct twl4030_usb *twl;
int status, err; int status, err;
struct usb_otg *otg; struct usb_otg *otg;
struct device_node *np = pdev->dev.of_node;
if (!pdata) {
dev_dbg(&pdev->dev, "platform_data not available\n");
return -EINVAL;
}
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL); twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl) if (!twl)
return -ENOMEM; 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); otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg) if (!otg)
return -ENOMEM; return -ENOMEM;
twl->dev = &pdev->dev; twl->dev = &pdev->dev;
twl->irq = platform_get_irq(pdev, 0); twl->irq = platform_get_irq(pdev, 0);
twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false; twl->vbus_supplied = false;
twl->asleep = 1; twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN; twl->linkstat = OMAP_MUSB_UNKNOWN;
@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct platform_device *pdev)
return 0; 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 = { static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe, .probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove), .remove = __exit_p(twl4030_usb_remove),
.driver = { .driver = {
.name = "twl4030_usb", .name = "twl4030_usb",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.of_match_table = of_match_ptr(twl4030_usb_id_table),
}, },
}; };