diff options
| author | Hema HK <hemahk@ti.com> | 2011-02-28 14:19:36 +0530 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-03-01 11:35:28 +0200 |
| commit | 8c59ef38119102ccd2a8db6f19a8864a7c8d4e73 (patch) | |
| tree | 2eb3db1db118811de9200838106d08051b71784b /arch | |
| parent | 37db3af11f02c2ccdf44a788694da16062a0333c (diff) | |
| download | kernel_samsung_smdk4412-8c59ef38119102ccd2a8db6f19a8864a7c8d4e73.zip kernel_samsung_smdk4412-8c59ef38119102ccd2a8db6f19a8864a7c8d4e73.tar.gz kernel_samsung_smdk4412-8c59ef38119102ccd2a8db6f19a8864a7c8d4e73.tar.bz2 | |
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: Hema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/omap_phy_internal.c | 7 |
1 files changed, 7 insertions, 0 deletions
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; |