diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 15:27:22 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 15:27:22 -0800 |
commit | bab588fcfb6335c767d811a8955979f5440328e0 (patch) | |
tree | 2a862ddf47a82be885a8e7945a17cc3ff7a658b9 /drivers/usb | |
parent | 3298a3511f1e73255a8dc023efd909e569eea037 (diff) | |
parent | 9cb0d1babfcb1b4ac248c09425f7d5de1e771133 (diff) | |
download | linux-bab588fcfb6335c767d811a8955979f5440328e0.tar.bz2 |
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC-specific updates from Arnd Bergmann:
"This is a larger set of new functionality for the existing SoC
families, including:
- vt8500 gains support for new CPU cores, notably the Cortex-A9 based
wm8850
- prima2 gains support for the "marco" SoC family, its SMP based
cousin
- tegra gains support for the new Tegra4 (Tegra114) family
- socfpga now supports a newer version of the hardware including SMP
- i.mx31 and bcm2835 are now using DT probing for their clocks
- lots of updates for sh-mobile
- OMAP updates for clocks, power management and USB
- i.mx6q and tegra now support cpuidle
- kirkwood now supports PCIe hot plugging
- tegra clock support is updated
- tegra USB PHY probing gets implemented diffently"
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits)
ARM: prima2: remove duplicate v7_invalidate_l1
ARM: shmobile: r8a7779: Correct TMU clock support again
ARM: prima2: fix __init section for cpu hotplug
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3)
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3)
arm: socfpga: Add SMP support for actual socfpga harware
arm: Add v7_invalidate_l1 to cache-v7.S
arm: socfpga: Add entries to enable make dtbs socfpga
arm: socfpga: Add new device tree source for actual socfpga HW
ARM: tegra: sort Kconfig selects for Tegra114
ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114
ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC
ARM: tegra: Fix build error for gic update
ARM: tegra: remove empty tegra_smp_init_cpus()
ARM: shmobile: Register ARM architected timer
ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
ARM: shmobile: r8a7779: Correct TMU clock support
ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT
ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles
ARM: mxs: use apbx bus clock to drive the timers on timrotv2
...
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/host/ehci-tegra.c | 97 | ||||
-rw-r--r-- | drivers/usb/phy/tegra_usb_phy.c | 132 |
2 files changed, 110 insertions, 119 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index acf17556bd87..568aecc7075b 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -2,7 +2,7 @@ * EHCI-compliant USB host controller driver for NVIDIA Tegra SoCs * * Copyright (C) 2010 Google, Inc. - * Copyright (C) 2009 NVIDIA Corporation + * Copyright (C) 2009 - 2013 NVIDIA Corporation * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -26,23 +26,28 @@ #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/pm_runtime.h> - +#include <linux/usb/ehci_def.h> #include <linux/usb/tegra_usb_phy.h> #define TEGRA_USB_BASE 0xC5000000 #define TEGRA_USB2_BASE 0xC5004000 #define TEGRA_USB3_BASE 0xC5008000 +/* PORTSC registers */ +#define TEGRA_USB_PORTSC1 0x184 +#define TEGRA_USB_PORTSC1_PTS(x) (((x) & 0x3) << 30) +#define TEGRA_USB_PORTSC1_PHCD (1 << 23) + #define TEGRA_USB_DMA_ALIGN 32 struct tegra_ehci_hcd { struct ehci_hcd *ehci; struct tegra_usb_phy *phy; struct clk *clk; - struct clk *emc_clk; struct usb_phy *transceiver; int host_resumed; int port_resuming; + bool needs_double_reset; enum tegra_usb_phy_port_speed port_speed; }; @@ -50,9 +55,8 @@ static void tegra_ehci_power_up(struct usb_hcd *hcd) { struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - clk_prepare_enable(tegra->emc_clk); clk_prepare_enable(tegra->clk); - usb_phy_set_suspend(&tegra->phy->u_phy, 0); + usb_phy_set_suspend(hcd->phy, 0); tegra->host_resumed = 1; } @@ -61,9 +65,8 @@ static void tegra_ehci_power_down(struct usb_hcd *hcd) struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); tegra->host_resumed = 0; - usb_phy_set_suspend(&tegra->phy->u_phy, 1); + usb_phy_set_suspend(hcd->phy, 1); clk_disable_unprepare(tegra->clk); - clk_disable_unprepare(tegra->emc_clk); } static int tegra_ehci_internal_port_reset( @@ -156,7 +159,7 @@ static int tegra_ehci_hub_control( if (tegra->port_resuming && !(temp & PORT_SUSPEND)) { /* Resume completed, re-enable disconnect detection */ tegra->port_resuming = 0; - tegra_usb_phy_postresume(tegra->phy); + tegra_usb_phy_postresume(hcd->phy); } } @@ -184,7 +187,7 @@ static int tegra_ehci_hub_control( } /* For USB1 port we need to issue Port Reset twice internally */ - if (tegra->phy->instance == 0 && + if (tegra->needs_double_reset && (typeReq == SetPortFeature && wValue == USB_PORT_FEAT_RESET)) { spin_unlock_irqrestore(&ehci->lock, flags); return tegra_ehci_internal_port_reset(ehci, status_reg); @@ -209,7 +212,7 @@ static int tegra_ehci_hub_control( goto done; /* Disable disconnect detection during port resume */ - tegra_usb_phy_preresume(tegra->phy); + tegra_usb_phy_preresume(hcd->phy); ehci->reset_done[wIndex-1] = jiffies + msecs_to_jiffies(25); @@ -473,7 +476,7 @@ static int controller_resume(struct device *dev) } /* Force the phy to keep data lines in suspend state */ - tegra_ehci_phy_restore_start(tegra->phy, tegra->port_speed); + tegra_ehci_phy_restore_start(hcd->phy, tegra->port_speed); /* Enable host mode */ tdi_reset(ehci); @@ -540,17 +543,17 @@ static int controller_resume(struct device *dev) } } - tegra_ehci_phy_restore_end(tegra->phy); + tegra_ehci_phy_restore_end(hcd->phy); goto done; restart: if (tegra->port_speed <= TEGRA_USB_PHY_PORT_SPEED_HIGH) - tegra_ehci_phy_restore_end(tegra->phy); + tegra_ehci_phy_restore_end(hcd->phy); tegra_ehci_restart(hcd); done: - tegra_usb_phy_preresume(tegra->phy); + tegra_usb_phy_preresume(hcd->phy); tegra->port_resuming = 1; return 0; } @@ -604,6 +607,37 @@ static const struct dev_pm_ops tegra_ehci_pm_ops = { #endif +/* Bits of PORTSC1, which will get cleared by writing 1 into them */ +#define TEGRA_PORTSC1_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC) + +void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val) +{ + unsigned long val; + struct usb_hcd *hcd = bus_to_hcd(x->otg->host); + void __iomem *base = hcd->regs; + + val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; + val &= ~TEGRA_USB_PORTSC1_PTS(3); + val |= TEGRA_USB_PORTSC1_PTS(pts_val & 3); + writel(val, base + TEGRA_USB_PORTSC1); +} +EXPORT_SYMBOL_GPL(tegra_ehci_set_pts); + +void tegra_ehci_set_phcd(struct usb_phy *x, bool enable) +{ + unsigned long val; + struct usb_hcd *hcd = bus_to_hcd(x->otg->host); + void __iomem *base = hcd->regs; + + val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; + if (enable) + val |= TEGRA_USB_PORTSC1_PHCD; + else + val &= ~TEGRA_USB_PORTSC1_PHCD; + writel(val, base + TEGRA_USB_PORTSC1); +} +EXPORT_SYMBOL_GPL(tegra_ehci_set_phcd); + static u64 tegra_ehci_dma_mask = DMA_BIT_MASK(32); static int tegra_ehci_probe(struct platform_device *pdev) @@ -615,6 +649,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) int err = 0; int irq; int instance = pdev->id; + struct usb_phy *u_phy; pdata = pdev->dev.platform_data; if (!pdata) { @@ -656,15 +691,8 @@ static int tegra_ehci_probe(struct platform_device *pdev) if (err) goto fail_clk; - tegra->emc_clk = devm_clk_get(&pdev->dev, "emc"); - if (IS_ERR(tegra->emc_clk)) { - dev_err(&pdev->dev, "Can't get emc clock\n"); - err = PTR_ERR(tegra->emc_clk); - goto fail_emc_clk; - } - - clk_prepare_enable(tegra->emc_clk); - clk_set_rate(tegra->emc_clk, 400000000); + tegra->needs_double_reset = of_property_read_bool(pdev->dev.of_node, + "nvidia,needs-double-reset"); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -712,9 +740,19 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto fail_io; } - usb_phy_init(&tegra->phy->u_phy); + hcd->phy = u_phy = &tegra->phy->u_phy; + usb_phy_init(hcd->phy); + + u_phy->otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg), + GFP_KERNEL); + if (!u_phy->otg) { + dev_err(&pdev->dev, "Failed to alloc memory for otg\n"); + err = -ENOMEM; + goto fail_io; + } + u_phy->otg->host = hcd_to_bus(hcd); - err = usb_phy_set_suspend(&tegra->phy->u_phy, 0); + err = usb_phy_set_suspend(hcd->phy, 0); if (err) { dev_err(&pdev->dev, "Failed to power on the phy\n"); goto fail; @@ -760,10 +798,8 @@ fail: if (!IS_ERR_OR_NULL(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, NULL); #endif - usb_phy_shutdown(&tegra->phy->u_phy); + usb_phy_shutdown(hcd->phy); fail_io: - clk_disable_unprepare(tegra->emc_clk); -fail_emc_clk: clk_disable_unprepare(tegra->clk); fail_clk: usb_put_hcd(hcd); @@ -784,15 +820,12 @@ static int tegra_ehci_remove(struct platform_device *pdev) otg_set_host(tegra->transceiver->otg, NULL); #endif + usb_phy_shutdown(hcd->phy); usb_remove_hcd(hcd); usb_put_hcd(hcd); - usb_phy_shutdown(&tegra->phy->u_phy); - clk_disable_unprepare(tegra->clk); - clk_disable_unprepare(tegra->emc_clk); - return 0; } diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c index 9d13c81754e0..5487d38481af 100644 --- a/drivers/usb/phy/tegra_usb_phy.c +++ b/drivers/usb/phy/tegra_usb_phy.c @@ -24,6 +24,7 @@ #include <linux/platform_device.h> #include <linux/io.h> #include <linux/gpio.h> +#include <linux/of.h> #include <linux/of_gpio.h> #include <linux/usb/otg.h> #include <linux/usb/ulpi.h> @@ -35,19 +36,6 @@ #define ULPI_VIEWPORT 0x170 -#define USB_PORTSC1 0x184 -#define USB_PORTSC1_PTS(x) (((x) & 0x3) << 30) -#define USB_PORTSC1_PSPD(x) (((x) & 0x3) << 26) -#define USB_PORTSC1_PHCD (1 << 23) -#define USB_PORTSC1_WKOC (1 << 22) -#define USB_PORTSC1_WKDS (1 << 21) -#define USB_PORTSC1_WKCN (1 << 20) -#define USB_PORTSC1_PTC(x) (((x) & 0xf) << 16) -#define USB_PORTSC1_PP (1 << 12) -#define USB_PORTSC1_SUSP (1 << 7) -#define USB_PORTSC1_PE (1 << 2) -#define USB_PORTSC1_CCS (1 << 0) - #define USB_SUSP_CTRL 0x400 #define USB_WAKE_ON_CNNT_EN_DEV (1 << 3) #define USB_WAKE_ON_DISCON_EN_DEV (1 << 4) @@ -208,11 +196,6 @@ static struct tegra_utmip_config utmip_default[] = { }, }; -static inline bool phy_is_ulpi(struct tegra_usb_phy *phy) -{ - return (phy->instance == 1); -} - static int utmip_pad_open(struct tegra_usb_phy *phy) { phy->pad_clk = clk_get_sys("utmip-pad", NULL); @@ -221,7 +204,7 @@ static int utmip_pad_open(struct tegra_usb_phy *phy) return PTR_ERR(phy->pad_clk); } - if (phy->instance == 0) { + if (phy->is_legacy_phy) { phy->pad_regs = phy->regs; } else { phy->pad_regs = ioremap(TEGRA_USB_BASE, TEGRA_USB_SIZE); @@ -236,7 +219,7 @@ static int utmip_pad_open(struct tegra_usb_phy *phy) static void utmip_pad_close(struct tegra_usb_phy *phy) { - if (phy->instance != 0) + if (!phy->is_legacy_phy) iounmap(phy->pad_regs); clk_put(phy->pad_clk); } @@ -305,7 +288,7 @@ static void utmi_phy_clk_disable(struct tegra_usb_phy *phy) unsigned long val; void __iomem *base = phy->regs; - if (phy->instance == 0) { + if (phy->is_legacy_phy) { val = readl(base + USB_SUSP_CTRL); val |= USB_SUSP_SET; writel(val, base + USB_SUSP_CTRL); @@ -315,13 +298,8 @@ static void utmi_phy_clk_disable(struct tegra_usb_phy *phy) val = readl(base + USB_SUSP_CTRL); val &= ~USB_SUSP_SET; writel(val, base + USB_SUSP_CTRL); - } - - if (phy->instance == 2) { - val = readl(base + USB_PORTSC1); - val |= USB_PORTSC1_PHCD; - writel(val, base + USB_PORTSC1); - } + } else + tegra_ehci_set_phcd(&phy->u_phy, true); if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID, 0) < 0) pr_err("%s: timeout waiting for phy to stabilize\n", __func__); @@ -332,7 +310,7 @@ static void utmi_phy_clk_enable(struct tegra_usb_phy *phy) unsigned long val; void __iomem *base = phy->regs; - if (phy->instance == 0) { + if (phy->is_legacy_phy) { val = readl(base + USB_SUSP_CTRL); val |= USB_SUSP_CLR; writel(val, base + USB_SUSP_CTRL); @@ -342,13 +320,8 @@ static void utmi_phy_clk_enable(struct tegra_usb_phy *phy) val = readl(base + USB_SUSP_CTRL); val &= ~USB_SUSP_CLR; writel(val, base + USB_SUSP_CTRL); - } - - if (phy->instance == 2) { - val = readl(base + USB_PORTSC1); - val &= ~USB_PORTSC1_PHCD; - writel(val, base + USB_PORTSC1); - } + } else + tegra_ehci_set_phcd(&phy->u_phy, false); if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID, USB_PHY_CLK_VALID)) @@ -365,7 +338,7 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val |= UTMIP_RESET; writel(val, base + USB_SUSP_CTRL); - if (phy->instance == 0) { + if (phy->is_legacy_phy) { val = readl(base + USB1_LEGACY_CTRL); val |= USB1_NO_LEGACY_MODE; writel(val, base + USB1_LEGACY_CTRL); @@ -440,16 +413,14 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val |= UTMIP_BIAS_PDTRK_COUNT(0x5); writel(val, base + UTMIP_BIAS_CFG1); - if (phy->instance == 0) { + if (phy->is_legacy_phy) { val = readl(base + UTMIP_SPARE_CFG0); if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) val &= ~FUSE_SETUP_SEL; else val |= FUSE_SETUP_SEL; writel(val, base + UTMIP_SPARE_CFG0); - } - - if (phy->instance == 2) { + } else { val = readl(base + USB_SUSP_CTRL); val |= UTMIP_PHY_ENABLE; writel(val, base + USB_SUSP_CTRL); @@ -459,7 +430,7 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val &= ~UTMIP_RESET; writel(val, base + USB_SUSP_CTRL); - if (phy->instance == 0) { + if (phy->is_legacy_phy) { val = readl(base + USB1_LEGACY_CTRL); val &= ~USB1_VBUS_SENSE_CTL_MASK; val |= USB1_VBUS_SENSE_CTL_A_SESS_VLD; @@ -472,11 +443,8 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) utmi_phy_clk_enable(phy); - if (phy->instance == 2) { - val = readl(base + USB_PORTSC1); - val &= ~USB_PORTSC1_PTS(~0); - writel(val, base + USB_PORTSC1); - } + if (!phy->is_legacy_phy) + tegra_ehci_set_pts(&phy->u_phy, 0); return 0; } @@ -621,10 +589,6 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy) return ret; } - val = readl(base + USB_PORTSC1); - val |= USB_PORTSC1_WKOC | USB_PORTSC1_WKDS | USB_PORTSC1_WKCN; - writel(val, base + USB_PORTSC1); - val = readl(base + USB_SUSP_CTRL); val |= USB_SUSP_CLR; writel(val, base + USB_SUSP_CTRL); @@ -639,17 +603,8 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy) static int ulpi_phy_power_off(struct tegra_usb_phy *phy) { - unsigned long val; - void __iomem *base = phy->regs; struct tegra_ulpi_config *config = phy->config; - /* Clear WKCN/WKDS/WKOC wake-on events that can cause the USB - * Controller to immediately bring the ULPI PHY out of low power - */ - val = readl(base + USB_PORTSC1); - val &= ~(USB_PORTSC1_WKOC | USB_PORTSC1_WKDS | USB_PORTSC1_WKCN); - writel(val, base + USB_PORTSC1); - clk_disable(phy->clk); return gpio_direction_output(config->reset_gpio, 0); } @@ -660,7 +615,7 @@ static int tegra_phy_init(struct usb_phy *x) struct tegra_ulpi_config *ulpi_config; int err; - if (phy_is_ulpi(phy)) { + if (phy->is_ulpi_phy) { ulpi_config = phy->config; phy->clk = clk_get_sys(NULL, ulpi_config->clk); if (IS_ERR(phy->clk)) { @@ -698,7 +653,7 @@ static void tegra_usb_phy_close(struct usb_phy *x) { struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy); - if (phy_is_ulpi(phy)) + if (phy->is_ulpi_phy) clk_put(phy->clk); else utmip_pad_close(phy); @@ -709,7 +664,7 @@ static void tegra_usb_phy_close(struct usb_phy *x) static int tegra_usb_phy_power_on(struct tegra_usb_phy *phy) { - if (phy_is_ulpi(phy)) + if (phy->is_ulpi_phy) return ulpi_phy_power_on(phy); else return utmi_phy_power_on(phy); @@ -717,7 +672,7 @@ static int tegra_usb_phy_power_on(struct tegra_usb_phy *phy) static int tegra_usb_phy_power_off(struct tegra_usb_phy *phy) { - if (phy_is_ulpi(phy)) + if (phy->is_ulpi_phy) return ulpi_phy_power_off(phy); else return utmi_phy_power_off(phy); @@ -739,8 +694,9 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance, unsigned long parent_rate; int i; int err; + struct device_node *np = dev->of_node; - phy = kmalloc(sizeof(struct tegra_usb_phy), GFP_KERNEL); + phy = kzalloc(sizeof(struct tegra_usb_phy), GFP_KERNEL); if (!phy) return ERR_PTR(-ENOMEM); @@ -749,9 +705,16 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance, phy->config = config; phy->mode = phy_mode; phy->dev = dev; + phy->is_legacy_phy = + of_property_read_bool(np, "nvidia,has-legacy-mode"); + err = of_property_match_string(np, "phy_type", "ulpi"); + if (err < 0) + phy->is_ulpi_phy = false; + else + phy->is_ulpi_phy = true; if (!phy->config) { - if (phy_is_ulpi(phy)) { + if (phy->is_ulpi_phy) { pr_err("%s: ulpi phy configuration missing", __func__); err = -EINVAL; goto err0; @@ -796,45 +759,40 @@ err0: } EXPORT_SYMBOL_GPL(tegra_usb_phy_open); -void tegra_usb_phy_preresume(struct tegra_usb_phy *phy) +void tegra_usb_phy_preresume(struct usb_phy *x) { - if (!phy_is_ulpi(phy)) + struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy); + + if (!phy->is_ulpi_phy) utmi_phy_preresume(phy); } EXPORT_SYMBOL_GPL(tegra_usb_phy_preresume); -void tegra_usb_phy_postresume(struct tegra_usb_phy *phy) +void tegra_usb_phy_postresume(struct usb_phy *x) { - if (!phy_is_ulpi(phy)) + struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy); + + if (!phy->is_ulpi_phy) utmi_phy_postresume(phy); } EXPORT_SYMBOL_GPL(tegra_usb_phy_postresume); -void tegra_ehci_phy_restore_start(struct tegra_usb_phy *phy, +void tegra_ehci_phy_restore_start(struct usb_phy *x, enum tegra_usb_phy_port_speed port_speed) { - if (!phy_is_ulpi(phy)) + struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy); + + if (!phy->is_ulpi_phy) utmi_phy_restore_start(phy, port_speed); } EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_start); -void tegra_ehci_phy_restore_end(struct tegra_usb_phy *phy) +void tegra_ehci_phy_restore_end(struct usb_phy *x) { - if (!phy_is_ulpi(phy)) + struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy); + + if (!phy->is_ulpi_phy) utmi_phy_restore_end(phy); } EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_end); -void tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy) -{ - if (!phy_is_ulpi(phy)) - utmi_phy_clk_disable(phy); -} -EXPORT_SYMBOL_GPL(tegra_usb_phy_clk_disable); - -void tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy) -{ - if (!phy_is_ulpi(phy)) - utmi_phy_clk_enable(phy); -} -EXPORT_SYMBOL_GPL(tegra_usb_phy_clk_enable); |