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Subject[PATCHv4 12/19] usb: otg: twl6030: 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: Hema HK <hemahk@ti.com>
---
drivers/usb/otg/twl6030-usb.c | 105 ++++++++++++++++++++++------------------
1 files changed, 58 insertions(+), 47 deletions(-)

diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 720ab7d..843c47d 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -87,7 +87,7 @@
#define VBUS_DET BIT(2)

struct twl6030_usb {
- struct usb_phy otg;
+ struct usb_phy xceiv;
struct device *dev;

/* for vbus reporting with irqs disabled */
@@ -107,7 +107,7 @@ struct twl6030_usb {
unsigned long features;
};

-#define xceiv_to_twl(x) container_of((x), struct twl6030_usb, otg)
+#define xceiv_to_twl(x) container_of((x), struct twl6030_usb, xceiv)

/*-------------------------------------------------------------------------*/

@@ -194,9 +194,9 @@ static int twl6030_phy_suspend(struct usb_phy *x, int suspend)
return 0;
}

-static int twl6030_start_srp(struct usb_phy *x)
+static int twl6030_start_srp(struct usb_otg *otg)
{
- struct twl6030_usb *twl = xceiv_to_twl(x);
+ struct twl6030_usb *twl = xceiv_to_twl(otg->xceiv);

twl6030_writeb(twl, TWL_MODULE_USB, 0x24, USB_VBUS_CTRL_SET);
twl6030_writeb(twl, TWL_MODULE_USB, 0x84, USB_VBUS_CTRL_SET);
@@ -272,6 +272,7 @@ static DEVICE_ATTR(vbus, 0444, twl6030_usb_vbus_show, NULL);
static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
{
struct twl6030_usb *twl = _twl;
+ struct usb_otg *otg = twl->xceiv.otg;
int status;
u8 vbus_state, hw_state;

@@ -284,18 +285,18 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
regulator_enable(twl->usb3v3);
twl->asleep = 1;
status = USB_EVENT_VBUS;
- twl->otg.default_a = false;
- twl->otg.state = USB_PHY_STATE_B_IDLE;
+ otg->default_a = false;
+ twl->xceiv.state = USB_PHY_STATE_B_IDLE;
twl->linkstat = status;
- twl->otg.last_event = status;
- atomic_notifier_call_chain(&twl->otg.notifier,
- status, twl->otg.gadget);
+ twl->xceiv.last_event = status;
+ atomic_notifier_call_chain(&twl->xceiv.notifier,
+ status, otg->gadget);
} else {
status = USB_EVENT_NONE;
twl->linkstat = status;
- twl->otg.last_event = status;
- atomic_notifier_call_chain(&twl->otg.notifier,
- status, twl->otg.gadget);
+ twl->xceiv.last_event = status;
+ atomic_notifier_call_chain(&twl->xceiv.notifier,
+ status, otg->gadget);
if (twl->asleep) {
regulator_disable(twl->usb3v3);
twl->asleep = 0;
@@ -310,6 +311,7 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
{
struct twl6030_usb *twl = _twl;
+ struct usb_otg *otg = twl->xceiv.otg;
int status = USB_EVENT_NONE;
u8 hw_state;

@@ -323,12 +325,12 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_SET,
0x10);
status = USB_EVENT_ID;
- twl->otg.default_a = true;
- twl->otg.state = USB_PHY_STATE_A_IDLE;
+ otg->default_a = true;
+ twl->xceiv.state = USB_PHY_STATE_A_IDLE;
twl->linkstat = status;
- twl->otg.last_event = status;
- atomic_notifier_call_chain(&twl->otg.notifier, status,
- twl->otg.gadget);
+ twl->xceiv.last_event = status;
+ atomic_notifier_call_chain(&twl->xceiv.notifier, status,
+ otg->gadget);
} else {
twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_CLR,
0x10);
@@ -340,18 +342,15 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
return IRQ_HANDLED;
}

-static int twl6030_set_peripheral(struct usb_phy *x,
- struct usb_gadget *gadget)
+static int twl6030_set_peripheral(struct usb_otg *otg,
+ struct usb_gadget *gadget)
{
- struct twl6030_usb *twl;
-
- if (!x)
+ if (!otg)
return -ENODEV;

- twl = xceiv_to_twl(x);
- twl->otg.gadget = gadget;
+ otg->gadget = gadget;
if (!gadget)
- twl->otg.state = USB_PHY_STATE_UNDEFINED;
+ otg->xceiv->state = USB_PHY_STATE_UNDEFINED;

return 0;
}
@@ -392,9 +391,9 @@ static void otg_set_vbus_work(struct work_struct *data)
CHARGERUSB_CTRL1);
}

-static int twl6030_set_vbus(struct usb_phy *x, bool enabled)
+static int twl6030_set_vbus(struct usb_otg *otg, bool enabled)
{
- struct twl6030_usb *twl = xceiv_to_twl(x);
+ struct twl6030_usb *twl = xceiv_to_twl(otg->xceiv);

twl->vbus_enable = enabled;
schedule_work(&twl->set_vbus_work);
@@ -402,17 +401,14 @@ static int twl6030_set_vbus(struct usb_phy *x, bool enabled)
return 0;
}

-static int twl6030_set_host(struct usb_phy *x, struct usb_bus *host)
+static int twl6030_set_host(struct usb_otg *otg, struct usb_bus *host)
{
- struct twl6030_usb *twl;
-
- if (!x)
+ if (!otg)
return -ENODEV;

- twl = xceiv_to_twl(x);
- twl->otg.host = host;
+ otg->host = host;
if (!host)
- twl->otg.state = USB_PHY_STATE_UNDEFINED;
+ otg->xceiv->state = USB_PHY_STATE_UNDEFINED;
return 0;
}

@@ -421,6 +417,7 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev)
struct twl6030_usb *twl;
int status, err;
struct twl4030_usb_data *pdata;
+ struct usb_otg *otg;
struct device *dev = &pdev->dev;
pdata = dev->platform_data;

@@ -428,19 +425,29 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev)
if (!twl)
return -ENOMEM;

+ otg = kzalloc(sizeof *otg, GFP_KERNEL);
+ if (!otg) {
+ kfree(twl);
+ return -ENOMEM;
+ }
+
twl->dev = &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
twl->features = pdata->features;
- twl->otg.dev = twl->dev;
- twl->otg.label = "twl6030";
- twl->otg.set_host = twl6030_set_host;
- twl->otg.set_peripheral = twl6030_set_peripheral;
- twl->otg.set_vbus = twl6030_set_vbus;
- twl->otg.init = twl6030_phy_init;
- twl->otg.shutdown = twl6030_phy_shutdown;
- twl->otg.set_suspend = twl6030_phy_suspend;
- twl->otg.start_srp = twl6030_start_srp;
+
+ twl->xceiv.dev = twl->dev;
+ twl->xceiv.label = "twl6030";
+ twl->xceiv.otg = otg;
+ twl->xceiv.init = twl6030_phy_init;
+ twl->xceiv.shutdown = twl6030_phy_shutdown;
+ twl->xceiv.set_suspend = twl6030_phy_suspend;
+
+ otg->xceiv = &twl->xceiv;
+ otg->set_host = twl6030_set_host;
+ otg->set_peripheral = twl6030_set_peripheral;
+ otg->set_vbus = twl6030_set_vbus;
+ otg->start_srp = twl6030_start_srp;

/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -448,16 +455,17 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev)
err = twl6030_usb_ldo_init(twl);
if (err) {
dev_err(&pdev->dev, "ldo init failed\n");
+ kfree(otg);
kfree(twl);
return err;
}
- otg_set_transceiver(&twl->otg);
+ usb_set_transceiver(&twl->xceiv);

platform_set_drvdata(pdev, twl);
if (device_create_file(&pdev->dev, &dev_attr_vbus))
dev_warn(&pdev->dev, "could not create sysfs file\n");

- ATOMIC_INIT_NOTIFIER_HEAD(&twl->otg.notifier);
+ ATOMIC_INIT_NOTIFIER_HEAD(&twl->xceiv.notifier);

INIT_WORK(&twl->set_vbus_work, otg_set_vbus_work);

@@ -469,6 +477,7 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
twl->irq1, status);
device_remove_file(twl->dev, &dev_attr_vbus);
+ kfree(otg);
kfree(twl);
return status;
}
@@ -481,14 +490,15 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev)
twl->irq2, status);
free_irq(twl->irq1, twl);
device_remove_file(twl->dev, &dev_attr_vbus);
+ kfree(otg);
kfree(twl);
return status;
}

twl->asleep = 0;
pdata->phy_init(dev);
- twl6030_phy_suspend(&twl->otg, 0);
- twl6030_enable_irq(&twl->otg);
+ twl6030_phy_suspend(&twl->xceiv, 0);
+ twl6030_enable_irq(&twl->xceiv);
dev_info(&pdev->dev, "Initialized TWL6030 USB module\n");

return 0;
@@ -512,6 +522,7 @@ static int __exit twl6030_usb_remove(struct platform_device *pdev)
pdata->phy_exit(twl->dev);
device_remove_file(twl->dev, &dev_attr_vbus);
cancel_work_sync(&twl->set_vbus_work);
+ kfree(twl->xceiv.otg);
kfree(twl);

return 0;
--
1.7.4.1


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