diff options
Diffstat (limited to 'drivers/power/isp1704_charger.c')
| -rw-r--r-- | drivers/power/isp1704_charger.c | 107 |
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); |