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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>
This commit is contained in:
Venu Byravarasu 2013-05-16 19:42:59 +05:30 committed by Felipe Balbi
parent 9e69fae1a8
commit 9cd9384c73
3 changed files with 13 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/usb/host/ehci-tegra.c
View File

@ -736,7 +736,6 @@ static int tegra_ehci_probe(struct platform_device *pdev)
tegra->phy = tegra_usb_phy_open(&pdev->dev, instance, hcd->regs, tegra->phy = tegra_usb_phy_open(&pdev->dev, instance, hcd->regs,
pdata->phy_config, pdata->phy_config,
TEGRA_USB_PHY_MODE_HOST,
tegra_ehci_set_pts, tegra_ehci_set_pts,
tegra_ehci_set_phcd); tegra_ehci_set_phcd);
if (IS_ERR(tegra->phy)) { if (IS_ERR(tegra->phy)) {

13
drivers/usb/phy/phy-tegra-usb.c
View File

@ -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, 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_pts)(struct usb_phy *x, u8 pts_val),
void (*set_phcd)(struct usb_phy *x, bool enable)) 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->instance = instance;
phy->regs = regs; phy->regs = regs;
phy->config = config; phy->config = config;
phy->mode = phy_mode;
phy->dev = dev; phy->dev = dev;
phy->is_legacy_phy = phy->is_legacy_phy =
of_property_read_bool(np, "nvidia,has-legacy-mode"); 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 else
phy->is_ulpi_phy = true; 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->config) {
if (phy->is_ulpi_phy) { if (phy->is_ulpi_phy) {
pr_err("%s: ulpi phy configuration missing", __func__); pr_err("%s: ulpi phy configuration missing", __func__);

3
include/linux/usb/tegra_usb_phy.h
View File

@ -42,6 +42,7 @@ enum tegra_usb_phy_port_speed {
enum tegra_usb_phy_mode { enum tegra_usb_phy_mode {
TEGRA_USB_PHY_MODE_DEVICE, TEGRA_USB_PHY_MODE_DEVICE,
TEGRA_USB_PHY_MODE_HOST, TEGRA_USB_PHY_MODE_HOST,
TEGRA_USB_PHY_MODE_OTG,
}; };
struct tegra_xtal_freq; struct tegra_xtal_freq;
@ -66,7 +67,7 @@ struct tegra_usb_phy {
}; };
struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance, 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_pts)(struct usb_phy *x, u8 pts_val),
void (*set_phcd)(struct usb_phy *x, bool enable)); void (*set_phcd)(struct usb_phy *x, bool enable));