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Subject[PATCHv6 06/19] usb: otg: gpio_vbus: Start using struct usb_otg
Date
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
---
drivers/usb/otg/gpio_vbus.c | 61 +++++++++++++++++++++++++-----------------
1 files changed, 36 insertions(+), 25 deletions(-)
diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c
index 14f48e8..548720c 100644
--- a/drivers/usb/otg/gpio_vbus.c
+++ b/drivers/usb/otg/gpio_vbus.c
@@ -31,7 +31,7 @@
* Needs to be loaded before the UDC driver that will use it.
*/
struct gpio_vbus_data {
- struct usb_phy otg;
+ struct usb_phy xceiv;
struct device *dev;
struct regulator *vbus_draw;
int vbus_draw_enabled;
@@ -97,7 +97,7 @@ static void gpio_vbus_work(struct work_struct *work)
struct gpio_vbus_mach_info *pdata = gpio_vbus->dev->platform_data;
int gpio;

- if (!gpio_vbus->otg.gadget)
+ if (!gpio_vbus->xceiv.otg->gadget)
return;

/* Peripheral controllers which manage the pullup themselves won't have
@@ -107,8 +107,8 @@ static void gpio_vbus_work(struct work_struct *work)
*/
gpio = pdata->gpio_pullup;
if (is_vbus_powered(pdata)) {
- gpio_vbus->otg.state = USB_PHY_STATE_B_PERIPHERAL;
- usb_gadget_vbus_connect(gpio_vbus->otg.gadget);
+ gpio_vbus->xceiv.state = USB_PHY_STATE_B_PERIPHERAL;
+ usb_gadget_vbus_connect(gpio_vbus->xceiv.otg->gadget);

/* drawing a "unit load" is *always* OK, except for OTG */
set_vbus_draw(gpio_vbus, 100);
@@ -123,8 +123,8 @@ static void gpio_vbus_work(struct work_struct *work)

set_vbus_draw(gpio_vbus, 0);

- usb_gadget_vbus_disconnect(gpio_vbus->otg.gadget);
- gpio_vbus->otg.state = USB_PHY_STATE_B_IDLE;
+ usb_gadget_vbus_disconnect(gpio_vbus->xceiv.otg->gadget);
+ gpio_vbus->xceiv.state = USB_PHY_STATE_B_IDLE;
}
}

@@ -134,12 +134,13 @@ static irqreturn_t gpio_vbus_irq(int irq, void *data)
struct platform_device *pdev = data;
struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data;
struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev);
+ struct usb_otg *otg = gpio_vbus->xceiv.otg;

dev_dbg(&pdev->dev, "VBUS %s (gadget: %s)\n",
is_vbus_powered(pdata) ? "supplied" : "inactive",
- gpio_vbus->otg.gadget ? gpio_vbus->otg.gadget->name : "none");
+ otg->gadget ? otg->gadget->name : "none");

- if (gpio_vbus->otg.gadget)
+ if (otg->gadget)
schedule_work(&gpio_vbus->work);

return IRQ_HANDLED;
@@ -148,15 +149,15 @@ static irqreturn_t gpio_vbus_irq(int irq, void *data)
/* OTG transceiver interface */

/* bind/unbind the peripheral controller */
-static int gpio_vbus_set_peripheral(struct usb_phy *otg,
- struct usb_gadget *gadget)
+static int gpio_vbus_set_peripheral(struct usb_otg *otg,
+ struct usb_gadget *gadget)
{
struct gpio_vbus_data *gpio_vbus;
struct gpio_vbus_mach_info *pdata;
struct platform_device *pdev;
int gpio, irq;

- gpio_vbus = container_of(otg, struct gpio_vbus_data, otg);
+ gpio_vbus = container_of(otg->xceiv, struct gpio_vbus_data, xceiv);
pdev = to_platform_device(gpio_vbus->dev);
pdata = gpio_vbus->dev->platform_data;
irq = gpio_to_irq(pdata->gpio_vbus);
@@ -173,7 +174,7 @@ static int gpio_vbus_set_peripheral(struct usb_phy *otg,
set_vbus_draw(gpio_vbus, 0);

usb_gadget_vbus_disconnect(otg->gadget);
- otg->state = USB_PHY_STATE_UNDEFINED;
+ otg->xceiv->state = USB_PHY_STATE_UNDEFINED;

otg->gadget = NULL;
return 0;
@@ -188,23 +189,23 @@ static int gpio_vbus_set_peripheral(struct usb_phy *otg,
}

/* effective for B devices, ignored for A-peripheral */
-static int gpio_vbus_set_power(struct usb_phy *otg, unsigned mA)
+static int gpio_vbus_set_power(struct usb_phy *xceiv, unsigned mA)
{
struct gpio_vbus_data *gpio_vbus;

- gpio_vbus = container_of(otg, struct gpio_vbus_data, otg);
+ gpio_vbus = container_of(xceiv, struct gpio_vbus_data, xceiv);

- if (otg->state == USB_PHY_STATE_B_PERIPHERAL)
+ if (xceiv->state == USB_PHY_STATE_B_PERIPHERAL)
set_vbus_draw(gpio_vbus, mA);
return 0;
}

/* for non-OTG B devices: set/clear transceiver suspend mode */
-static int gpio_vbus_set_suspend(struct usb_phy *otg, int suspend)
+static int gpio_vbus_set_suspend(struct usb_phy *xceiv, int suspend)
{
struct gpio_vbus_data *gpio_vbus;

- gpio_vbus = container_of(otg, struct gpio_vbus_data, otg);
+ gpio_vbus = container_of(xceiv, struct gpio_vbus_data, xceiv);

/* draw max 0 mA from vbus in suspend mode; or the previously
* recorded amount of current if not suspended
@@ -212,7 +213,7 @@ static int gpio_vbus_set_suspend(struct usb_phy *otg, int suspend)
* NOTE: high powered configs (mA > 100) may draw up to 2.5 mA
* if they're wake-enabled ... we don't handle that yet.
*/
- return gpio_vbus_set_power(otg, suspend ? 0 : gpio_vbus->mA);
+ return gpio_vbus_set_power(xceiv, suspend ? 0 : gpio_vbus->mA);
}

/* platform driver interface */
@@ -232,13 +233,21 @@ static int __init gpio_vbus_probe(struct platform_device *pdev)
if (!gpio_vbus)
return -ENOMEM;

+ gpio_vbus->xceiv.otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
+ if (!gpio_vbus->xceiv.otg) {
+ kfree(gpio_vbus);
+ return -ENOMEM;
+ }
+
platform_set_drvdata(pdev, gpio_vbus);
gpio_vbus->dev = &pdev->dev;
- gpio_vbus->otg.label = "gpio-vbus";
- gpio_vbus->otg.state = USB_PHY_STATE_UNDEFINED;
- gpio_vbus->otg.set_peripheral = gpio_vbus_set_peripheral;
- gpio_vbus->otg.set_power = gpio_vbus_set_power;
- gpio_vbus->otg.set_suspend = gpio_vbus_set_suspend;
+ gpio_vbus->xceiv.label = "gpio-vbus";
+ gpio_vbus->xceiv.set_power = gpio_vbus_set_power;
+ gpio_vbus->xceiv.set_suspend = gpio_vbus_set_suspend;
+ gpio_vbus->xceiv.state = USB_PHY_STATE_UNDEFINED;
+
+ gpio_vbus->xceiv.otg->xceiv = &gpio_vbus->xceiv;
+ gpio_vbus->xceiv.otg->set_peripheral = gpio_vbus_set_peripheral;

err = gpio_request(gpio, "vbus_detect");
if (err) {
@@ -287,7 +296,7 @@ static int __init gpio_vbus_probe(struct platform_device *pdev)
}

/* only active when a gadget is registered */
- err = otg_set_transceiver(&gpio_vbus->otg);
+ err = usb_set_transceiver(&gpio_vbus->xceiv);
if (err) {
dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
err);
@@ -303,6 +312,7 @@ err_irq:
gpio_free(pdata->gpio_vbus);
err_gpio:
platform_set_drvdata(pdev, NULL);
+ kfree(gpio_vbus->xceiv.otg);
kfree(gpio_vbus);
return err;
}
@@ -315,13 +325,14 @@ static int __exit gpio_vbus_remove(struct platform_device *pdev)

regulator_put(gpio_vbus->vbus_draw);

- otg_set_transceiver(NULL);
+ usb_set_transceiver(NULL);

free_irq(gpio_to_irq(gpio), &pdev->dev);
if (gpio_is_valid(pdata->gpio_pullup))
gpio_free(pdata->gpio_pullup);
gpio_free(gpio);
platform_set_drvdata(pdev, NULL);
+ kfree(gpio_vbus->xceiv.otg);
kfree(gpio_vbus);

return 0;
--
1.7.4.1


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