diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-26 10:23:47 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-26 10:23:47 -0700 |
commit | 9fc377799bc9bfd8d5cb35d0d1ea2e2458cbdbb3 (patch) | |
tree | fe93603b4e33dd50ff5f95ff769a0748b230cdf9 /drivers/usb/host/ehci-omap.c | |
parent | 5e23ae49960d05f578a73ecd19749c45af682c2b (diff) | |
parent | e387ef5c47ddeaeaa3cbdc54424cdb7a28dae2c0 (diff) |
Merge tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
"Here's the big USB patch set for the 3.6-rc1 merge window.
Lots of little changes in here, primarily for gadget controllers and
drivers. There's some scsi changes that I think also went in through
the scsi tree, but they merge just fine. All of these patches have
been in the linux-next tree for a while now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up trivial conflicts in include/scsi/scsi_device.h (same libata
conflict that Jeff had already encountered)
* tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits)
usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams
usb: Add quirk detection based on interface information
usb: s3c-hsotg: Add header file protection macros in s3c-hsotg.h
USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer
USB: add USB_VENDOR_AND_INTERFACE_INFO() macro
USB: notify phy when root hub port connect change
USB: remove 8 bytes of padding from usb_host_interface on 64 bit builds
USB: option: add ZTE MF821D
USB: sierra: QMI mode MC7710 moved to qcserial
USB: qcserial: adding Sierra Wireless devices
USB: qcserial: support generic Qualcomm serial ports
USB: qcserial: make probe more flexible
USB: qcserial: centralize probe exit path
USB: qcserial: consolidate usb_set_interface calls
USB: ehci-s5p: Add support for device tree
USB: ohci-exynos: Add support for device tree
USB: ehci-omap: fix compile failure(v1)
usb: host: tegra: pass correct pointer in ehci_setup()
USB: ehci-fsl: Update ifdef check to work on 64-bit ppc
USB: serial: keyspan: Removed unrequired parentheses.
...
Diffstat (limited to 'drivers/usb/host/ehci-omap.c')
-rw-r--r-- | drivers/usb/host/ehci-omap.c | 114 |
1 files changed, 59 insertions, 55 deletions
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index c30435499a0..ec21f4a4a05 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -115,9 +115,8 @@ static void omap_ehci_erratum_i693(struct ehci_hcd *ehci) clk_disable(usbhost_p2_fck); } -static void omap_ehci_soft_phy_reset(struct platform_device *pdev, u8 port) +static void omap_ehci_soft_phy_reset(struct usb_hcd *hcd, u8 port) { - struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev); unsigned long timeout = jiffies + msecs_to_jiffies(1000); unsigned reg = 0; @@ -139,12 +138,63 @@ static void omap_ehci_soft_phy_reset(struct platform_device *pdev, u8 port) cpu_relax(); if (time_after(jiffies, timeout)) { - dev_dbg(&pdev->dev, "phy reset operation timed out\n"); + dev_dbg(hcd->self.controller, + "phy reset operation timed out\n"); break; } } } +static int omap_ehci_init(struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + int rc; + struct ehci_hcd_omap_platform_data *pdata; + + pdata = hcd->self.controller->platform_data; + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_request_one(pdata->reset_gpio_port[0], + GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_request_one(pdata->reset_gpio_port[1], + GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); + + /* Hold the PHY in RESET for enough time till DIR is high */ + udelay(10); + } + + /* Soft reset the PHY using PHY reset command over ULPI */ + if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY) + omap_ehci_soft_phy_reset(hcd, 0); + if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY) + omap_ehci_soft_phy_reset(hcd, 1); + + /* we know this is the memory we want, no need to ioremap again */ + ehci->caps = hcd->regs; + + rc = ehci_setup(hcd); + + if (pdata->phy_reset) { + /* Hold the PHY in RESET for enough time till + * PHY is settled and ready + */ + udelay(10); + + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1); + } + + /* root ports should always stay powered */ + ehci_port_power(ehci, 1); + + return rc; +} + static int omap_ehci_hub_control( struct usb_hcd *hcd, u16 typeReq, @@ -219,7 +269,6 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) struct resource *res; struct usb_hcd *hcd; void __iomem *regs; - struct ehci_hcd *omap_ehci; int ret = -ENODEV; int irq; int i; @@ -281,18 +330,6 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } } - /* Hold PHYs in reset while initializing EHCI controller */ - if (pdata->phy_reset) { - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_set_value_cansleep(pdata->reset_gpio_port[0], 0); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_set_value_cansleep(pdata->reset_gpio_port[1], 0); - - /* Hold the PHY in RESET for enough time till DIR is high */ - udelay(10); - } - pm_runtime_enable(dev); pm_runtime_get_sync(dev); @@ -308,49 +345,12 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) ehci_write(regs, EHCI_INSNREG04, EHCI_INSNREG04_DISABLE_UNSUSPEND); - /* Soft reset the PHY using PHY reset command over ULPI */ - if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY) - omap_ehci_soft_phy_reset(pdev, 0); - if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY) - omap_ehci_soft_phy_reset(pdev, 1); - - omap_ehci = hcd_to_ehci(hcd); - omap_ehci->sbrn = 0x20; - - /* we know this is the memory we want, no need to ioremap again */ - omap_ehci->caps = hcd->regs; - omap_ehci->regs = hcd->regs - + HC_LENGTH(ehci, readl(&omap_ehci->caps->hc_capbase)); - - dbg_hcs_params(omap_ehci, "reset"); - dbg_hcc_params(omap_ehci, "reset"); - - /* cache this readonly data; minimize chip reads */ - omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params); - - ehci_reset(omap_ehci); ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) { dev_err(dev, "failed to add hcd with err %d\n", ret); - goto err_add_hcd; + goto err_pm_runtime; } - if (pdata->phy_reset) { - /* Hold the PHY in RESET for enough time till - * PHY is settled and ready - */ - udelay(10); - - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1); - } - - /* root ports should always stay powered */ - ehci_port_power(omap_ehci, 1); - /* get clocks */ utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); if (IS_ERR(utmi_p1_fck)) { @@ -422,8 +422,12 @@ err_utmi_p1_fck: clk_put(utmi_p1_fck); err_add_hcd: + usb_remove_hcd(hcd); + +err_pm_runtime: disable_put_regulator(pdata); pm_runtime_put_sync(dev); + usb_put_hcd(hcd); err_io: iounmap(regs); @@ -506,7 +510,7 @@ static const struct hc_driver ehci_omap_hc_driver = { /* * basic lifecycle operations */ - .reset = ehci_init, + .reset = omap_ehci_init, .start = ehci_run, .stop = ehci_stop, .shutdown = ehci_shutdown, |