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authorTuomas Tynkkynen <ttynkkynen@nvidia.com>2013-07-25 18:38:08 (GMT)
committerFelipe Balbi <balbi@ti.com>2013-07-29 10:58:26 (GMT)
commit9fdb07f72088ab5fc7bd6fd6f070fac53d636bd9 (patch)
treec21f392b6731d8f3d074e1d95bab2ed87bc93823
parent3b102e8bc0e49d417c7d376af857537080335dbf (diff)
usb: phy: tegra: Use DT helpers for phy_type
Use the new of_usb_get_phy_mode helper function for parsing phy_type from the device tree. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
-rw-r--r--drivers/usb/phy/phy-tegra-usb.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index fb5bc8c..fb469f1 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -31,6 +31,7 @@
#include <linux/of_gpio.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
+#include <linux/usb/of.h>
#include <asm/mach-types.h>
#include <linux/usb/ehci_def.h>
#include <linux/usb/tegra_usb_phy.h>
@@ -860,6 +861,7 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
struct resource *res;
struct tegra_usb_phy *tegra_phy = NULL;
struct device_node *np = pdev->dev.of_node;
+ enum usb_phy_interface phy_type;
int err;
tegra_phy = devm_kzalloc(&pdev->dev, sizeof(*tegra_phy), GFP_KERNEL);
@@ -884,12 +886,12 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
tegra_phy->is_legacy_phy =
of_property_read_bool(np, "nvidia,has-legacy-mode");
- err = of_property_match_string(np, "phy_type", "ulpi");
- if (err < 0) {
+ phy_type = of_usb_get_phy_mode(np);
+ if (phy_type == USBPHY_INTERFACE_MODE_UTMI) {
err = utmi_phy_probe(tegra_phy, pdev);
if (err < 0)
return err;
- } else {
+ } else if (phy_type == USBPHY_INTERFACE_MODE_ULPI) {
tegra_phy->is_ulpi_phy = true;
tegra_phy->reset_gpio =
@@ -899,8 +901,10 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
tegra_phy->reset_gpio);
return tegra_phy->reset_gpio;
}
-
tegra_phy->config = NULL;
+ } else {
+ dev_err(&pdev->dev, "phy_type is invalid or unsupported\n");
+ return -EINVAL;
}
err = of_property_match_string(np, "dr_mode", "otg");

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