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Subject[PATCHv4 04/19] usb: otg: ab8500: 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: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
---
drivers/usb/otg/ab8500-usb.c | 87 +++++++++++++++++++++++-------------------
1 files changed, 48 insertions(+), 39 deletions(-)

diff --git a/drivers/usb/otg/ab8500-usb.c b/drivers/usb/otg/ab8500-usb.c
index 366c3af..3d659c3 100644
--- a/drivers/usb/otg/ab8500-usb.c
+++ b/drivers/usb/otg/ab8500-usb.c
@@ -68,7 +68,7 @@ enum ab8500_usb_link_status {
};

struct ab8500_usb {
- struct usb_phy otg;
+ struct usb_phy xceiv;
struct device *dev;
int irq_num_id_rise;
int irq_num_id_fall;
@@ -84,7 +84,7 @@ struct ab8500_usb {

static inline struct ab8500_usb *xceiv_to_ab(struct usb_phy *x)
{
- return container_of(x, struct ab8500_usb, otg);
+ return container_of(x, struct ab8500_usb, xceiv);
}

static void ab8500_usb_wd_workaround(struct ab8500_usb *ab)
@@ -169,8 +169,8 @@ static int ab8500_usb_link_status_update(struct ab8500_usb *ab)
/* TODO: Disable regulators. */
ab8500_usb_host_phy_dis(ab);
ab8500_usb_peri_phy_dis(ab);
- ab->otg.state = USB_PHY_STATE_B_IDLE;
- ab->otg.default_a = false;
+ ab->xceiv.state = USB_PHY_STATE_B_IDLE;
+ ab->xceiv.otg->default_a = false;
ab->vbus_draw = 0;
event = USB_EVENT_NONE;
break;
@@ -181,22 +181,22 @@ static int ab8500_usb_link_status_update(struct ab8500_usb *ab)
case USB_LINK_HOST_CHG_NM:
case USB_LINK_HOST_CHG_HS:
case USB_LINK_HOST_CHG_HS_CHIRP:
- if (ab->otg.gadget) {
+ if (ab->xceiv.otg->gadget) {
/* TODO: Enable regulators. */
ab8500_usb_peri_phy_en(ab);
- v = ab->otg.gadget;
+ v = ab->xceiv.otg->gadget;
}
event = USB_EVENT_VBUS;
break;

case USB_LINK_HM_IDGND:
- if (ab->otg.host) {
+ if (ab->xceiv.otg->host) {
/* TODO: Enable regulators. */
ab8500_usb_host_phy_en(ab);
- v = ab->otg.host;
+ v = ab->xceiv.otg->host;
}
- ab->otg.state = USB_PHY_STATE_A_IDLE;
- ab->otg.default_a = true;
+ ab->xceiv.state = USB_PHY_STATE_A_IDLE;
+ ab->xceiv.otg->default_a = true;
event = USB_EVENT_ID;
break;

@@ -212,7 +212,7 @@ static int ab8500_usb_link_status_update(struct ab8500_usb *ab)
break;
}

- atomic_notifier_call_chain(&ab->otg.notifier, event, v);
+ atomic_notifier_call_chain(&ab->xceiv.notifier, event, v);

return 0;
}
@@ -262,27 +262,27 @@ static void ab8500_usb_phy_disable_work(struct work_struct *work)
struct ab8500_usb *ab = container_of(work, struct ab8500_usb,
phy_dis_work);

- if (!ab->otg.host)
+ if (!ab->xceiv.otg->host)
ab8500_usb_host_phy_dis(ab);

- if (!ab->otg.gadget)
+ if (!ab->xceiv.otg->gadget)
ab8500_usb_peri_phy_dis(ab);
}

-static int ab8500_usb_set_power(struct usb_phy *otg, unsigned mA)
+static int ab8500_usb_set_power(struct usb_phy *xceiv, unsigned mA)
{
struct ab8500_usb *ab;

- if (!otg)
+ if (!xceiv)
return -ENODEV;

- ab = xceiv_to_ab(otg);
+ ab = xceiv_to_ab(xceiv);

ab->vbus_draw = mA;

if (mA)
- atomic_notifier_call_chain(&ab->otg.notifier,
- USB_EVENT_ENUMERATED, ab->otg.gadget);
+ atomic_notifier_call_chain(&ab->xceiv.notifier,
+ USB_EVENT_ENUMERATED, ab->xceiv.otg->gadget);
return 0;
}

@@ -296,15 +296,15 @@ static int ab8500_usb_set_suspend(struct usb_phy *x, int suspend)
return 0;
}

-static int ab8500_usb_set_peripheral(struct usb_phy *otg,
- struct usb_gadget *gadget)
+static int ab8500_usb_set_peripheral(struct usb_otg *otg,
+ struct usb_gadget *gadget)
{
struct ab8500_usb *ab;

if (!otg)
return -ENODEV;

- ab = xceiv_to_ab(otg);
+ ab = xceiv_to_ab(otg->xceiv);

/* Some drivers call this function in atomic context.
* Do not update ab8500 registers directly till this
@@ -313,11 +313,11 @@ static int ab8500_usb_set_peripheral(struct usb_phy *otg,

if (!gadget) {
/* TODO: Disable regulators. */
- ab->otg.gadget = NULL;
+ otg->gadget = NULL;
schedule_work(&ab->phy_dis_work);
} else {
- ab->otg.gadget = gadget;
- ab->otg.state = USB_PHY_STATE_B_IDLE;
+ otg->gadget = gadget;
+ otg->xceiv->state = USB_PHY_STATE_B_IDLE;

/* Phy will not be enabled if cable is already
* plugged-in. Schedule to enable phy.
@@ -329,15 +329,14 @@ static int ab8500_usb_set_peripheral(struct usb_phy *otg,
return 0;
}

-static int ab8500_usb_set_host(struct usb_phy *otg,
- struct usb_bus *host)
+static int ab8500_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
{
struct ab8500_usb *ab;

if (!otg)
return -ENODEV;

- ab = xceiv_to_ab(otg);
+ ab = xceiv_to_ab(otg->xceiv);

/* Some drivers call this function in atomic context.
* Do not update ab8500 registers directly till this
@@ -346,10 +345,10 @@ static int ab8500_usb_set_host(struct usb_phy *otg,

if (!host) {
/* TODO: Disable regulators. */
- ab->otg.host = NULL;
+ otg->host = NULL;
schedule_work(&ab->phy_dis_work);
} else {
- ab->otg.host = host;
+ otg->host = host;
/* Phy will not be enabled if cable is already
* plugged-in. Schedule to enable phy.
* Use same delay to avoid any race condition.
@@ -488,19 +487,27 @@ static int __devinit ab8500_usb_probe(struct platform_device *pdev)
if (!ab)
return -ENOMEM;

+ ab->xceiv.otg = kzalloc(sizeof *ab->xceiv.otg, GFP_KERNEL);
+ if (!ab->xceiv.otg) {
+ kfree(ab);
+ return -ENOMEM;
+ }
+
ab->dev = &pdev->dev;
ab->rev = rev;
- ab->otg.dev = ab->dev;
- ab->otg.label = "ab8500";
- ab->otg.state = USB_PHY_STATE_UNDEFINED;
- ab->otg.set_host = ab8500_usb_set_host;
- ab->otg.set_peripheral = ab8500_usb_set_peripheral;
- ab->otg.set_suspend = ab8500_usb_set_suspend;
- ab->otg.set_power = ab8500_usb_set_power;
+ ab->xceiv.dev = ab->dev;
+ ab->xceiv.label = "ab8500";
+ ab->xceiv.set_suspend = ab8500_usb_set_suspend;
+ ab->xceiv.set_power = ab8500_usb_set_power;
+ ab->xceiv.state = USB_PHY_STATE_UNDEFINED;
+
+ ab->xceiv.otg->xceiv = &ab->xceiv;
+ ab->xceiv.otg->set_host = ab8500_usb_set_host;
+ ab->xceiv.otg->set_peripheral = ab8500_usb_set_peripheral;

platform_set_drvdata(pdev, ab);

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

/* v1: Wait for link status to become stable.
* all: Updates form set_host and set_peripheral as they are atomic.
@@ -520,7 +527,7 @@ static int __devinit ab8500_usb_probe(struct platform_device *pdev)
if (err < 0)
goto fail0;

- err = otg_set_transceiver(&ab->otg);
+ err = usb_set_transceiver(&ab->xceiv);
if (err) {
dev_err(&pdev->dev, "Can't register transceiver\n");
goto fail1;
@@ -532,6 +539,7 @@ static int __devinit ab8500_usb_probe(struct platform_device *pdev)
fail1:
ab8500_usb_irq_free(ab);
fail0:
+ kfree(ab->xceiv.otg);
kfree(ab);
return err;
}
@@ -546,13 +554,14 @@ static int __devexit ab8500_usb_remove(struct platform_device *pdev)

cancel_work_sync(&ab->phy_dis_work);

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

ab8500_usb_host_phy_dis(ab);
ab8500_usb_peri_phy_dis(ab);

platform_set_drvdata(pdev, NULL);

+ kfree(ab->xceiv.otg);
kfree(ab);

return 0;
--
1.7.4.1


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