diff options
Diffstat (limited to 'drivers/usb/host/ehci-tegra.c')
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 56 |
1 files changed, 20 insertions, 36 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 68548236ec42..950e95efa381 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -17,6 +17,7 @@ */ #include <linux/clk.h> +#include <linux/err.h> #include <linux/platform_device.h> #include <linux/platform_data/tegra_usb.h> #include <linux/irq.h> @@ -46,8 +47,8 @@ static void tegra_ehci_power_up(struct usb_hcd *hcd) { struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - clk_enable(tegra->emc_clk); - clk_enable(tegra->clk); + clk_prepare_enable(tegra->emc_clk); + clk_prepare_enable(tegra->clk); tegra_usb_phy_power_on(tegra->phy); tegra->host_resumed = 1; } @@ -58,8 +59,8 @@ static void tegra_ehci_power_down(struct usb_hcd *hcd) tegra->host_resumed = 0; tegra_usb_phy_power_off(tegra->phy); - clk_disable(tegra->clk); - clk_disable(tegra->emc_clk); + clk_disable_unprepare(tegra->clk); + clk_disable_unprepare(tegra->emc_clk); } static int tegra_ehci_internal_port_reset( @@ -280,30 +281,14 @@ static int tegra_ehci_setup(struct usb_hcd *hcd) /* EHCI registers start at offset 0x100 */ ehci->caps = hcd->regs + 0x100; - ehci->regs = hcd->regs + 0x100 + - HC_LENGTH(ehci, readl(&ehci->caps->hc_capbase)); - - dbg_hcs_params(ehci, "reset"); - dbg_hcc_params(ehci, "reset"); - - /* cache this readonly data; minimize chip reads */ - ehci->hcs_params = readl(&ehci->caps->hcs_params); /* switch to host mode */ hcd->has_tt = 1; - ehci_reset(ehci); - - retval = ehci_halt(ehci); - if (retval) - return retval; - /* data structure init */ - retval = ehci_init(hcd); + retval = ehci_setup(hcd); if (retval) return retval; - ehci->sbrn = 0x20; - ehci_port_power(ehci, 1); return retval; } @@ -460,12 +445,11 @@ static int controller_suspend(struct device *dev) if (time_before(jiffies, ehci->next_statechange)) msleep(10); - spin_lock_irqsave(&ehci->lock, flags); + ehci_halt(ehci); + spin_lock_irqsave(&ehci->lock, flags); tegra->port_speed = (readl(&hw->port_status[0]) >> 26) & 0x3; - ehci_halt(ehci); clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - spin_unlock_irqrestore(&ehci->lock, flags); tegra_ehci_power_down(hcd); @@ -671,7 +655,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto fail_clk; } - err = clk_enable(tegra->clk); + err = clk_prepare_enable(tegra->clk); if (err) goto fail_clken; @@ -682,7 +666,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto fail_emc_clk; } - clk_enable(tegra->emc_clk); + clk_prepare_enable(tegra->emc_clk); clk_set_rate(tegra->emc_clk, 400000000); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -749,8 +733,8 @@ static int tegra_ehci_probe(struct platform_device *pdev) #ifdef CONFIG_USB_OTG_UTILS if (pdata->operating_mode == TEGRA_USB_OTG) { - tegra->transceiver = usb_get_transceiver(); - if (tegra->transceiver) + tegra->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); + if (!IS_ERR_OR_NULL(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, &hcd->self); } #endif @@ -773,19 +757,19 @@ static int tegra_ehci_probe(struct platform_device *pdev) fail: #ifdef CONFIG_USB_OTG_UTILS - if (tegra->transceiver) { + if (!IS_ERR_OR_NULL(tegra->transceiver)) { otg_set_host(tegra->transceiver->otg, NULL); - usb_put_transceiver(tegra->transceiver); + usb_put_phy(tegra->transceiver); } #endif tegra_usb_phy_close(tegra->phy); fail_phy: iounmap(hcd->regs); fail_io: - clk_disable(tegra->emc_clk); + clk_disable_unprepare(tegra->emc_clk); clk_put(tegra->emc_clk); fail_emc_clk: - clk_disable(tegra->clk); + clk_disable_unprepare(tegra->clk); fail_clken: clk_put(tegra->clk); fail_clk: @@ -808,9 +792,9 @@ static int tegra_ehci_remove(struct platform_device *pdev) pm_runtime_put_noidle(&pdev->dev); #ifdef CONFIG_USB_OTG_UTILS - if (tegra->transceiver) { + if (!IS_ERR_OR_NULL(tegra->transceiver)) { otg_set_host(tegra->transceiver->otg, NULL); - usb_put_transceiver(tegra->transceiver); + usb_put_phy(tegra->transceiver); } #endif @@ -820,10 +804,10 @@ static int tegra_ehci_remove(struct platform_device *pdev) tegra_usb_phy_close(tegra->phy); iounmap(hcd->regs); - clk_disable(tegra->clk); + clk_disable_unprepare(tegra->clk); clk_put(tegra->clk); - clk_disable(tegra->emc_clk); + clk_disable_unprepare(tegra->emc_clk); clk_put(tegra->emc_clk); kfree(tegra); |
