diff mbox

[patch-v2.6.39,05/19] usb: otg: OMAP4430: Save/restore the context

Message ID 1298992540-5984-6-git-send-email-balbi@ti.com (mailing list archive)
State New, archived
Delegated to: Felipe Balbi
Headers show

Commit Message

Felipe Balbi March 1, 2011, 3:15 p.m. UTC 
None
diff mbox

Patch

diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index 3ce6758..ebe33df 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)
 {
@@ -129,6 +130,9 @@  int omap4430_phy_suspend(struct device *dev, int suspend)
 		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);
@@ -137,6 +141,9 @@  int omap4430_phy_suspend(struct device *dev, int suspend)
 			__raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
 			mdelay(200);
 		}
+
+		/* restore the context */
+		__raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
 	}
 
 	return 0;