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usb: dwc3: omap: add dwc3_omap_extcon_register function 

Move the extcon related code to its own function.
Improve code readability, decrease the dwc3_probe() size.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
George Cherian 2014-07-16 18:37:08 +05:30 committed by Felipe Balbi
parent d2f0cf89ca
commit 025b431b0e
1 changed files with 39 additions and 26 deletions
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65
drivers/usb/dwc3/dwc3-omap.c
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@ -423,6 +423,42 @@ static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)
dwc3_omap_write_utmi_status(omap, reg);
}
static int dwc3_omap_extcon_register(struct dwc3_omap *omap)
{
u32 ret;
struct device_node *node = omap->dev->of_node;
struct extcon_dev *edev;
if (of_property_read_bool(node, "extcon")) {
edev = extcon_get_edev_by_phandle(omap->dev, 0);
if (IS_ERR(edev)) {
dev_vdbg(omap->dev, "couldn't get extcon device\n");
return -EPROBE_DEFER;
}
omap->vbus_nb.notifier_call = dwc3_omap_vbus_notifier;
ret = extcon_register_interest(&omap->extcon_vbus_dev,
edev->name, "USB",
&omap->vbus_nb);
if (ret < 0)
dev_vdbg(omap->dev, "failed to register notifier for USB\n");
omap->id_nb.notifier_call = dwc3_omap_id_notifier;
ret = extcon_register_interest(&omap->extcon_id_dev,
edev->name, "USB-HOST",
&omap->id_nb);
if (ret < 0)
dev_vdbg(omap->dev, "failed to register notifier for USB-HOST\n");
if (extcon_get_cable_state(edev, "USB") == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
if (extcon_get_cable_state(edev, "USB-HOST") == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
}
return 0;
}
static int dwc3_omap_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
@ -430,7 +466,6 @@ static int dwc3_omap_probe(struct platform_device *pdev)
struct dwc3_omap *omap;
struct resource *res;
struct device *dev = &pdev->dev;
struct extcon_dev *edev;
struct regulator *vbus_reg = NULL;
int ret;
@ -502,31 +537,9 @@ static int dwc3_omap_probe(struct platform_device *pdev)
dwc3_omap_enable_irqs(omap);
if (of_property_read_bool(node, "extcon")) {
edev = extcon_get_edev_by_phandle(dev, 0);
if (IS_ERR(edev)) {
dev_vdbg(dev, "couldn't get extcon device\n");
ret = -EPROBE_DEFER;
goto err2;
}
omap->vbus_nb.notifier_call = dwc3_omap_vbus_notifier;
ret = extcon_register_interest(&omap->extcon_vbus_dev,
edev->name, "USB", &omap->vbus_nb);
if (ret < 0)
dev_vdbg(dev, "failed to register notifier for USB\n");
omap->id_nb.notifier_call = dwc3_omap_id_notifier;
ret = extcon_register_interest(&omap->extcon_id_dev, edev->name,
"USB-HOST", &omap->id_nb);
if (ret < 0)
dev_vdbg(dev,
"failed to register notifier for USB-HOST\n");
if (extcon_get_cable_state(edev, "USB") == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
if (extcon_get_cable_state(edev, "USB-HOST") == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
}
ret = dwc3_omap_extcon_register(omap);
if (ret < 0)
goto err2;
ret = of_platform_populate(node, NULL, NULL, dev);
if (ret) {