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authorVenu Byravarasu <vbyravarasu@nvidia.com>2013-05-16 16:12:59 +0200
committerFelipe Balbi <balbi@ti.com>2013-05-30 01:46:46 +0200
commit9cd9384c73395f6ce78e1b9d529bc9f294fd5223 (patch)
tree8e521b70da4a9db260c8f72b1624df884694730c /drivers/usb/phy/phy-tegra-usb.c
parentusb: phy: tegra: Return correct error value provided by clk_get_sys (diff)
downloadlinux-9cd9384c73395f6ce78e1b9d529bc9f294fd5223.tar.xz
linux-9cd9384c73395f6ce78e1b9d529bc9f294fd5223.zip
usb: phy: tegra: Get PHY mode using DT
Added a new PHY mode to support OTG. Obtained Tegra USB PHY mode using DT property. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/phy/phy-tegra-usb.c')
-rw-r--r--drivers/usb/phy/phy-tegra-usb.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 8bcc12f6804a..0ff1f3e03b1e 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -687,7 +687,7 @@ static int tegra_usb_phy_suspend(struct usb_phy *x, int suspend)
}
struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
- void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode,
+ void __iomem *regs, void *config,
void (*set_pts)(struct usb_phy *x, u8 pts_val),
void (*set_phcd)(struct usb_phy *x, bool enable))
@@ -705,7 +705,6 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
phy->instance = instance;
phy->regs = regs;
phy->config = config;
- phy->mode = phy_mode;
phy->dev = dev;
phy->is_legacy_phy =
of_property_read_bool(np, "nvidia,has-legacy-mode");
@@ -717,6 +716,16 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
else
phy->is_ulpi_phy = true;
+ err = of_property_match_string(np, "dr_mode", "otg");
+ if (err < 0) {
+ err = of_property_match_string(np, "dr_mode", "peripheral");
+ if (err < 0)
+ phy->mode = TEGRA_USB_PHY_MODE_HOST;
+ else
+ phy->mode = TEGRA_USB_PHY_MODE_DEVICE;
+ } else
+ phy->mode = TEGRA_USB_PHY_MODE_OTG;
+
if (!phy->config) {
if (phy->is_ulpi_phy) {
pr_err("%s: ulpi phy configuration missing", __func__);