USB: PHY: tegra: Get rid of instance number to differentiate PHY type
Tegra20 USB has 3 PHY instances:
Instance 1 and 3 are UTMI. Instance 2 is ULPI.
As instance number was used to differentiate ULPI from UTMI,
used DT param to get this info and processed accordingly.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Acked-by: Felipe Balbi <balbi@ti.com>
[swarren: moved assignment of phy->is_ulpi_phy into this patch out
of next patch.]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c
index 79280fe..48fa525 100644
--- a/drivers/usb/phy/tegra_usb_phy.c
+++ b/drivers/usb/phy/tegra_usb_phy.c
@@ -209,11 +209,6 @@
},
};
-static inline bool phy_is_ulpi(struct tegra_usb_phy *phy)
-{
- return (phy->instance == 1);
-}
-
static int utmip_pad_open(struct tegra_usb_phy *phy)
{
phy->pad_clk = clk_get_sys("utmip-pad", NULL);
@@ -655,7 +650,7 @@
struct tegra_ulpi_config *ulpi_config;
int err;
- if (phy_is_ulpi(phy)) {
+ if (phy->is_ulpi_phy) {
ulpi_config = phy->config;
phy->clk = clk_get_sys(NULL, ulpi_config->clk);
if (IS_ERR(phy->clk)) {
@@ -693,7 +688,7 @@
{
struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy);
- if (phy_is_ulpi(phy))
+ if (phy->is_ulpi_phy)
clk_put(phy->clk);
else
utmip_pad_close(phy);
@@ -704,7 +699,7 @@
static int tegra_usb_phy_power_on(struct tegra_usb_phy *phy)
{
- if (phy_is_ulpi(phy))
+ if (phy->is_ulpi_phy)
return ulpi_phy_power_on(phy);
else
return utmi_phy_power_on(phy);
@@ -712,7 +707,7 @@
static int tegra_usb_phy_power_off(struct tegra_usb_phy *phy)
{
- if (phy_is_ulpi(phy))
+ if (phy->is_ulpi_phy)
return ulpi_phy_power_off(phy);
else
return utmi_phy_power_off(phy);
@@ -747,9 +742,14 @@
phy->dev = dev;
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->is_ulpi_phy = false;
+ else
+ phy->is_ulpi_phy = true;
if (!phy->config) {
- if (phy_is_ulpi(phy)) {
+ if (phy->is_ulpi_phy) {
pr_err("%s: ulpi phy configuration missing", __func__);
err = -EINVAL;
goto err0;
@@ -796,14 +796,14 @@
void tegra_usb_phy_preresume(struct tegra_usb_phy *phy)
{
- if (!phy_is_ulpi(phy))
+ if (!phy->is_ulpi_phy)
utmi_phy_preresume(phy);
}
EXPORT_SYMBOL_GPL(tegra_usb_phy_preresume);
void tegra_usb_phy_postresume(struct tegra_usb_phy *phy)
{
- if (!phy_is_ulpi(phy))
+ if (!phy->is_ulpi_phy)
utmi_phy_postresume(phy);
}
EXPORT_SYMBOL_GPL(tegra_usb_phy_postresume);
@@ -811,14 +811,14 @@
void tegra_ehci_phy_restore_start(struct tegra_usb_phy *phy,
enum tegra_usb_phy_port_speed port_speed)
{
- if (!phy_is_ulpi(phy))
+ if (!phy->is_ulpi_phy)
utmi_phy_restore_start(phy, port_speed);
}
EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_start);
void tegra_ehci_phy_restore_end(struct tegra_usb_phy *phy)
{
- if (!phy_is_ulpi(phy))
+ if (!phy->is_ulpi_phy)
utmi_phy_restore_end(phy);
}
EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_end);
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index f03e157..a6a89d4 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -60,6 +60,7 @@
struct usb_phy u_phy;
struct device *dev;
bool is_legacy_phy;
+ bool is_ulpi_phy;
};
struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,