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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:04:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:04:26 -0700
commit971f115a50afbe409825c9f3399d5a3b9aca4381 (patch)
treecb42dc07a032e325f22b64d961587c081225c6d6 /arch/arm/mach-omap2/omap_phy_internal.c
parent2e270d84223262a38d4755c61d55f5c73ea89e56 (diff)
parent500132a0f26ad7d9916102193cbc6c1b1becb373 (diff)
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Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (172 commits) USB: Add support for SuperSpeed isoc endpoints xhci: Clean up cycle bit math used during stalls. xhci: Fix cycle bit calculation during stall handling. xhci: Update internal dequeue pointers after stalls. USB: Disable auto-suspend for USB 3.0 hubs. USB: Remove bogus USB_PORT_STAT_SUPER_SPEED symbol. xhci: Return canceled URBs immediately when host is halted. xhci: Fixes for suspend/resume of shared HCDs. xhci: Fix re-init on power loss after resume. xhci: Make roothub functions deal with device removal. xhci: Limit roothub ports to 15 USB3 & 31 USB2 ports. xhci: Return a USB 3.0 hub descriptor for USB3 roothub. xhci: Register second xHCI roothub. xhci: Change xhci_find_slot_id_by_port() API. xhci: Refactor bus suspend state into a struct. xhci: Index with a port array instead of PORTSC addresses. USB: Set usb_hcd->state and flags for shared roothubs. usb: Make core allocate resources per PCI-device. usb: Store bus type in usb_hcd, not in driver flags. usb: Change usb_hcd->bandwidth_mutex to a pointer. ...
Diffstat (limited to 'arch/arm/mach-omap2/omap_phy_internal.c')
-rw-r--r--arch/arm/mach-omap2/omap_phy_internal.c29
1 files changed, 22 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index 745252c60e32..ebe33df708bd 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -43,6 +43,7 @@
static struct clk *phyclk, *clk48m, *clk32k;
static void __iomem *ctrl_base;
+static int usbotghs_control;
int omap4430_phy_init(struct device *dev)
{
@@ -103,13 +104,6 @@ int omap4430_phy_set_clk(struct device *dev, int on)
int omap4430_phy_power(struct device *dev, int ID, int on)
{
if (on) {
- /* enabled the clocks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
if (ID)
/* enable VBUS valid, IDDIG groung */
__raw_writel(AVALID | VBUSVALID, ctrl_base +
@@ -125,10 +119,31 @@ int omap4430_phy_power(struct device *dev, int ID, int on)
/* Enable session END and IDIG to high impedence. */
__raw_writel(SESSEND | IDDIG, ctrl_base +
USBOTGHS_CONTROL);
+ }
+ return 0;
+}
+
+int omap4430_phy_suspend(struct device *dev, int suspend)
+{
+ if (suspend) {
/* Disable the clocks */
omap4430_phy_set_clk(dev, 0);
/* Power down the phy */
__raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
+
+ /* save the context */
+ usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
+ } else {
+ /* Enable the internel phy clcoks */
+ omap4430_phy_set_clk(dev, 1);
+ /* power on the phy */
+ if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
+ __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
+ mdelay(200);
+ }
+
+ /* restore the context */
+ __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
}
return 0;