Ok, I've added this patch to my for-usb-next-queue branch. I'll be
sending it off to Greg for 3.10 after 3.9-rc1 is out and he's accepting
pull requests again.
Sarah Sharp
On Mon, Feb 11, 2013 at 12:58:00PM +0200, Felipe Balbi wrote:
From: Vikas Sajjan vikas.saj...@linaro.org
Adds power management support to xHCI platform driver.
This patch facilitates the transition of xHCI host controller
between S0 and S3/S4 power states, during suspend/resume cycles.
Signed-off-by: Abhilash Kesavan a.kesa...@samsung.com
Signed-off-by: Vikas C Sajjan vikas.saj...@linaro.org
CC: Doug Anderson diand...@chromium.org
Signed-off-by: Felipe Balbi ba...@ti.com
---
changes since v1:
- better placement for #edif
- use DEV_PM_OPS trickery (although not really necessary,
it looks a bit nicer)
drivers/usb/host/xhci-plat.c | 26 ++
1 file changed, 26 insertions(+)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index df90fe5..c9c7e13 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -185,11 +185,37 @@ static int xhci_plat_remove(struct platform_device *dev)
return 0;
}
+#ifdef CONFIG_PM
+static int xhci_plat_suspend(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ return xhci_suspend(xhci);
+}
+
+static int xhci_plat_resume(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ return xhci_resume(xhci, 0);
+}
+
+static const struct dev_pm_ops xhci_plat_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(xhci_plat_suspend, xhci_plat_resume)
+};
+#define DEV_PM_OPS (xhci_plat_pm_ops)
+#else
+#define DEV_PM_OPS NULL
+#endif /* CONFIG_PM */
+
static struct platform_driver usb_xhci_driver = {
.probe = xhci_plat_probe,
.remove = xhci_plat_remove,
.driver = {
.name = xhci-hcd,
+ .pm = DEV_PM_OPS,
},
};
MODULE_ALIAS(platform:xhci-hcd);
--
1.8.1.rc1.5.g7e0651a
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