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Commit 8c59ef38 authored by Hema HK's avatar Hema HK Committed by Felipe Balbi
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usb: otg: OMAP4430: Save/restore the context 



Add the context save/restore for the control module register
used for OMAP4430 musb with UTMI embedded PHY interface.

Signed-off-by: default avatarHema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 37db3af1

arch/arm/mach-omap2/omap_phy_internal.c

+7 −0
Original line number Diff line number Diff line
@@ -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;