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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 10:23:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 10:23:47 -0700
commit9fc377799bc9bfd8d5cb35d0d1ea2e2458cbdbb3 (patch)
treefe93603b4e33dd50ff5f95ff769a0748b230cdf9 /drivers/usb/host/ehci-omap.c
parent5e23ae49960d05f578a73ecd19749c45af682c2b (diff)
parente387ef5c47ddeaeaa3cbdc54424cdb7a28dae2c0 (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.c114
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,