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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-13 15:28:01 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-13 15:28:01 -0700
commit165f60642ae988f0b9dcfd4988806e7a938b26c7 (patch)
tree29293f73a4b022620f68dbf48d7450e501be5855 /drivers/usb/phy/phy-mxs-usb.c
parentc23bda365dfbf56aa4d6d4a97f83136c36050e01 (diff)
parent8b841cb217fac676498de3dfe8fabe38b39cba4e (diff)
Merge tag 'usb-for-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes: usb: patches for v3.12 merge window All patches here have been pending on linux-usb and sitting in linux-next for a while now. The biggest things in this tag are: DWC3 learned proper usage of threaded IRQ handlers and now we spend very little time in hardirq context. MUSB now has proper support for BeagleBone and Beaglebone Black. Tegra's USB support also got quite a bit of love and is learning to use PHY layer and generic DT attributes. Other than that, the usual pack of cleanups and non-critical fixes follow. Signed-of-by: Felipe Balbi <balbi@ti.com> Conflicts: drivers/usb/gadget/udc-core.c drivers/usb/host/ehci-tegra.c drivers/usb/musb/omap2430.c drivers/usb/musb/tusb6010.c
Diffstat (limited to 'drivers/usb/phy/phy-mxs-usb.c')
-rw-r--r--drivers/usb/phy/phy-mxs-usb.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index bd601c537c8..fdd33b44dbd 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -41,11 +41,14 @@ struct mxs_phy {
#define to_mxs_phy(p) container_of((p), struct mxs_phy, phy)
-static void mxs_phy_hw_init(struct mxs_phy *mxs_phy)
+static int mxs_phy_hw_init(struct mxs_phy *mxs_phy)
{
+ int ret;
void __iomem *base = mxs_phy->phy.io_priv;
- stmp_reset_block(base + HW_USBPHY_CTRL);
+ ret = stmp_reset_block(base + HW_USBPHY_CTRL);
+ if (ret)
+ return ret;
/* Power up the PHY */
writel(0, base + HW_USBPHY_PWD);
@@ -54,6 +57,8 @@ static void mxs_phy_hw_init(struct mxs_phy *mxs_phy)
writel(BM_USBPHY_CTRL_ENUTMILEVEL2 |
BM_USBPHY_CTRL_ENUTMILEVEL3,
base + HW_USBPHY_CTRL_SET);
+
+ return 0;
}
static int mxs_phy_init(struct usb_phy *phy)
@@ -61,9 +66,7 @@ static int mxs_phy_init(struct usb_phy *phy)
struct mxs_phy *mxs_phy = to_mxs_phy(phy);
clk_prepare_enable(mxs_phy->clk);
- mxs_phy_hw_init(mxs_phy);
-
- return 0;
+ return mxs_phy_hw_init(mxs_phy);
}
static void mxs_phy_shutdown(struct usb_phy *phy)