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path: root/drivers/power/isp1704_charger.c
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Diffstat (limited to 'drivers/power/isp1704_charger.c')
-rw-r--r--drivers/power/isp1704_charger.c107
1 files changed, 59 insertions, 48 deletions
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index b806667b59ae..39eb50f35f09 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -56,7 +56,7 @@ static u16 isp170x_id[] = {
struct isp1704_charger {
struct device *dev;
struct power_supply psy;
- struct otg_transceiver *otg;
+ struct usb_phy *phy;
struct notifier_block nb;
struct work_struct work;
@@ -71,6 +71,16 @@ struct isp1704_charger {
unsigned max_power;
};
+static inline int isp1704_read(struct isp1704_charger *isp, u32 reg)
+{
+ return usb_phy_io_read(isp->phy, reg);
+}
+
+static inline int isp1704_write(struct isp1704_charger *isp, u32 val, u32 reg)
+{
+ return usb_phy_io_write(isp->phy, val, reg);
+}
+
/*
* Disable/enable the power from the isp1704 if a function for it
* has been provided with platform data.
@@ -97,31 +107,31 @@ static inline int isp1704_charger_type(struct isp1704_charger *isp)
u8 otg_ctrl;
int type = POWER_SUPPLY_TYPE_USB_DCP;
- func_ctrl = otg_io_read(isp->otg, ULPI_FUNC_CTRL);
- otg_ctrl = otg_io_read(isp->otg, ULPI_OTG_CTRL);
+ func_ctrl = isp1704_read(isp, ULPI_FUNC_CTRL);
+ otg_ctrl = isp1704_read(isp, ULPI_OTG_CTRL);
/* disable pulldowns */
reg = ULPI_OTG_CTRL_DM_PULLDOWN | ULPI_OTG_CTRL_DP_PULLDOWN;
- otg_io_write(isp->otg, ULPI_CLR(ULPI_OTG_CTRL), reg);
+ isp1704_write(isp, ULPI_CLR(ULPI_OTG_CTRL), reg);
/* full speed */
- otg_io_write(isp->otg, ULPI_CLR(ULPI_FUNC_CTRL),
+ isp1704_write(isp, ULPI_CLR(ULPI_FUNC_CTRL),
ULPI_FUNC_CTRL_XCVRSEL_MASK);
- otg_io_write(isp->otg, ULPI_SET(ULPI_FUNC_CTRL),
+ isp1704_write(isp, ULPI_SET(ULPI_FUNC_CTRL),
ULPI_FUNC_CTRL_FULL_SPEED);
/* Enable strong pull-up on DP (1.5K) and reset */
reg = ULPI_FUNC_CTRL_TERMSELECT | ULPI_FUNC_CTRL_RESET;
- otg_io_write(isp->otg, ULPI_SET(ULPI_FUNC_CTRL), reg);
+ isp1704_write(isp, ULPI_SET(ULPI_FUNC_CTRL), reg);
usleep_range(1000, 2000);
- reg = otg_io_read(isp->otg, ULPI_DEBUG);
+ reg = isp1704_read(isp, ULPI_DEBUG);
if ((reg & 3) != 3)
type = POWER_SUPPLY_TYPE_USB_CDP;
/* recover original state */
- otg_io_write(isp->otg, ULPI_FUNC_CTRL, func_ctrl);
- otg_io_write(isp->otg, ULPI_OTG_CTRL, otg_ctrl);
+ isp1704_write(isp, ULPI_FUNC_CTRL, func_ctrl);
+ isp1704_write(isp, ULPI_OTG_CTRL, otg_ctrl);
return type;
}
@@ -136,28 +146,28 @@ static inline int isp1704_charger_verify(struct isp1704_charger *isp)
u8 r;
/* Reset the transceiver */
- r = otg_io_read(isp->otg, ULPI_FUNC_CTRL);
+ r = isp1704_read(isp, ULPI_FUNC_CTRL);
r |= ULPI_FUNC_CTRL_RESET;
- otg_io_write(isp->otg, ULPI_FUNC_CTRL, r);
+ isp1704_write(isp, ULPI_FUNC_CTRL, r);
usleep_range(1000, 2000);
/* Set normal mode */
r &= ~(ULPI_FUNC_CTRL_RESET | ULPI_FUNC_CTRL_OPMODE_MASK);
- otg_io_write(isp->otg, ULPI_FUNC_CTRL, r);
+ isp1704_write(isp, ULPI_FUNC_CTRL, r);
/* Clear the DP and DM pull-down bits */
r = ULPI_OTG_CTRL_DP_PULLDOWN | ULPI_OTG_CTRL_DM_PULLDOWN;
- otg_io_write(isp->otg, ULPI_CLR(ULPI_OTG_CTRL), r);
+ isp1704_write(isp, ULPI_CLR(ULPI_OTG_CTRL), r);
/* Enable strong pull-up on DP (1.5K) and reset */
r = ULPI_FUNC_CTRL_TERMSELECT | ULPI_FUNC_CTRL_RESET;
- otg_io_write(isp->otg, ULPI_SET(ULPI_FUNC_CTRL), r);
+ isp1704_write(isp, ULPI_SET(ULPI_FUNC_CTRL), r);
usleep_range(1000, 2000);
/* Read the line state */
- if (!otg_io_read(isp->otg, ULPI_DEBUG)) {
+ if (!isp1704_read(isp, ULPI_DEBUG)) {
/* Disable strong pull-up on DP (1.5K) */
- otg_io_write(isp->otg, ULPI_CLR(ULPI_FUNC_CTRL),
+ isp1704_write(isp, ULPI_CLR(ULPI_FUNC_CTRL),
ULPI_FUNC_CTRL_TERMSELECT);
return 1;
}
@@ -165,23 +175,23 @@ static inline int isp1704_charger_verify(struct isp1704_charger *isp)
/* Is it a charger or PS/2 connection */
/* Enable weak pull-up resistor on DP */
- otg_io_write(isp->otg, ULPI_SET(ISP1704_PWR_CTRL),
+ isp1704_write(isp, ULPI_SET(ISP1704_PWR_CTRL),
ISP1704_PWR_CTRL_DP_WKPU_EN);
/* Disable strong pull-up on DP (1.5K) */
- otg_io_write(isp->otg, ULPI_CLR(ULPI_FUNC_CTRL),
+ isp1704_write(isp, ULPI_CLR(ULPI_FUNC_CTRL),
ULPI_FUNC_CTRL_TERMSELECT);
/* Enable weak pull-down resistor on DM */
- otg_io_write(isp->otg, ULPI_SET(ULPI_OTG_CTRL),
+ isp1704_write(isp, ULPI_SET(ULPI_OTG_CTRL),
ULPI_OTG_CTRL_DM_PULLDOWN);
/* It's a charger if the line states are clear */
- if (!(otg_io_read(isp->otg, ULPI_DEBUG)))
+ if (!(isp1704_read(isp, ULPI_DEBUG)))
ret = 1;
/* Disable weak pull-up resistor on DP */
- otg_io_write(isp->otg, ULPI_CLR(ISP1704_PWR_CTRL),
+ isp1704_write(isp, ULPI_CLR(ISP1704_PWR_CTRL),
ISP1704_PWR_CTRL_DP_WKPU_EN);
return ret;
@@ -193,14 +203,14 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp)
u8 pwr_ctrl;
int ret = 0;
- pwr_ctrl = otg_io_read(isp->otg, ISP1704_PWR_CTRL);
+ pwr_ctrl = isp1704_read(isp, ISP1704_PWR_CTRL);
/* set SW control bit in PWR_CTRL register */
- otg_io_write(isp->otg, ISP1704_PWR_CTRL,
+ isp1704_write(isp, ISP1704_PWR_CTRL,
ISP1704_PWR_CTRL_SWCTRL);
/* enable manual charger detection */
- otg_io_write(isp->otg, ULPI_SET(ISP1704_PWR_CTRL),
+ isp1704_write(isp, ULPI_SET(ISP1704_PWR_CTRL),
ISP1704_PWR_CTRL_SWCTRL
| ISP1704_PWR_CTRL_DPVSRC_EN);
usleep_range(1000, 2000);
@@ -208,7 +218,7 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp)
timeout = jiffies + msecs_to_jiffies(300);
do {
/* Check if there is a charger */
- if (otg_io_read(isp->otg, ISP1704_PWR_CTRL)
+ if (isp1704_read(isp, ISP1704_PWR_CTRL)
& ISP1704_PWR_CTRL_VDAT_DET) {
ret = isp1704_charger_verify(isp);
break;
@@ -216,7 +226,7 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp)
} while (!time_after(jiffies, timeout) && isp->online);
/* recover original state */
- otg_io_write(isp->otg, ISP1704_PWR_CTRL, pwr_ctrl);
+ isp1704_write(isp, ISP1704_PWR_CTRL, pwr_ctrl);
return ret;
}
@@ -264,8 +274,8 @@ static void isp1704_charger_work(struct work_struct *data)
case POWER_SUPPLY_TYPE_USB:
default:
/* enable data pullups */
- if (isp->otg->gadget)
- usb_gadget_connect(isp->otg->gadget);
+ if (isp->phy->otg->gadget)
+ usb_gadget_connect(isp->phy->otg->gadget);
}
break;
case USB_EVENT_NONE:
@@ -283,8 +293,8 @@ static void isp1704_charger_work(struct work_struct *data)
* chargers. The pullups may be enabled elsewhere, so this can
* not be the final solution.
*/
- if (isp->otg->gadget)
- usb_gadget_disconnect(isp->otg->gadget);
+ if (isp->phy->otg->gadget)
+ usb_gadget_disconnect(isp->phy->otg->gadget);
isp1704_charger_set_power(isp, 0);
break;
@@ -364,11 +374,11 @@ static inline int isp1704_test_ulpi(struct isp1704_charger *isp)
int ret = -ENODEV;
/* Test ULPI interface */
- ret = otg_io_write(isp->otg, ULPI_SCRATCH, 0xaa);
+ ret = isp1704_write(isp, ULPI_SCRATCH, 0xaa);
if (ret < 0)
return ret;
- ret = otg_io_read(isp->otg, ULPI_SCRATCH);
+ ret = isp1704_read(isp, ULPI_SCRATCH);
if (ret < 0)
return ret;
@@ -376,13 +386,13 @@ static inline int isp1704_test_ulpi(struct isp1704_charger *isp)
return -ENODEV;
/* Verify the product and vendor id matches */
- vendor = otg_io_read(isp->otg, ULPI_VENDOR_ID_LOW);
- vendor |= otg_io_read(isp->otg, ULPI_VENDOR_ID_HIGH) << 8;
+ vendor = isp1704_read(isp, ULPI_VENDOR_ID_LOW);
+ vendor |= isp1704_read(isp, ULPI_VENDOR_ID_HIGH) << 8;
if (vendor != NXP_VENDOR_ID)
return -ENODEV;
- product = otg_io_read(isp->otg, ULPI_PRODUCT_ID_LOW);
- product |= otg_io_read(isp->otg, ULPI_PRODUCT_ID_HIGH) << 8;
+ product = isp1704_read(isp, ULPI_PRODUCT_ID_LOW);
+ product |= isp1704_read(isp, ULPI_PRODUCT_ID_HIGH) << 8;
for (i = 0; i < ARRAY_SIZE(isp170x_id); i++) {
if (product == isp170x_id[i]) {
@@ -405,8 +415,8 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev)
if (!isp)
return -ENOMEM;
- isp->otg = otg_get_transceiver();
- if (!isp->otg)
+ isp->phy = usb_get_transceiver();
+ if (!isp->phy)
goto fail0;
isp->dev = &pdev->dev;
@@ -429,14 +439,14 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev)
goto fail1;
/*
- * REVISIT: using work in order to allow the otg notifications to be
+ * REVISIT: using work in order to allow the usb notifications to be
* made atomically in the future.
*/
INIT_WORK(&isp->work, isp1704_charger_work);
isp->nb.notifier_call = isp1704_notifier_call;
- ret = otg_register_notifier(isp->otg, &isp->nb);
+ ret = usb_register_notifier(isp->phy, &isp->nb);
if (ret)
goto fail2;
@@ -449,13 +459,13 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev)
* enumerated. The charger driver should be always loaded before any
* gadget is loaded.
*/
- if (isp->otg->gadget)
- usb_gadget_disconnect(isp->otg->gadget);
+ if (isp->phy->otg->gadget)
+ usb_gadget_disconnect(isp->phy->otg->gadget);
/* Detect charger if VBUS is valid (the cable was already plugged). */
- ret = otg_io_read(isp->otg, ULPI_USB_INT_STS);
+ ret = isp1704_read(isp, ULPI_USB_INT_STS);
isp1704_charger_set_power(isp, 0);
- if ((ret & ULPI_INT_VBUS_VALID) && !isp->otg->default_a) {
+ if ((ret & ULPI_INT_VBUS_VALID) && !isp->phy->otg->default_a) {
isp->event = USB_EVENT_VBUS;
schedule_work(&isp->work);
}
@@ -464,12 +474,13 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev)
fail2:
power_supply_unregister(&isp->psy);
fail1:
- otg_put_transceiver(isp->otg);
+ usb_put_transceiver(isp->phy);
fail0:
kfree(isp);
dev_err(&pdev->dev, "failed to register isp1704 with error %d\n", ret);
+ isp1704_charger_set_power(isp, 0);
return ret;
}
@@ -477,9 +488,9 @@ static int __devexit isp1704_charger_remove(struct platform_device *pdev)
{
struct isp1704_charger *isp = platform_get_drvdata(pdev);
- otg_unregister_notifier(isp->otg, &isp->nb);
+ usb_unregister_notifier(isp->phy, &isp->nb);
power_supply_unregister(&isp->psy);
- otg_put_transceiver(isp->otg);
+ usb_put_transceiver(isp->phy);
isp1704_charger_set_power(isp, 0);
kfree(isp);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-02 22:06:20 +0300