As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.
Signed-off-by: Venu Byravarasu <vbyravarasu@xxxxxxxxxx>
---
drivers/usb/phy/tegra_usb_phy.c | 25 +++++++++++--------------
include/linux/usb/tegra_usb_phy.h | 1 +
2 files changed, 12 insertions(+), 14 deletions(-)
diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c
index b5b2037..29c5ac4 100644
--- a/drivers/usb/phy/tegra_usb_phy.c
+++ b/drivers/usb/phy/tegra_usb_phy.c
@@ -541,11 +541,10 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy)
int ret;
unsigned long val;
void __iomem *base = phy->regs;
- struct tegra_ulpi_config *config = phy->config;
- gpio_direction_output(config->reset_gpio, 0);
+ gpio_direction_output(phy->reset_gpio, 0);
msleep(5);
- gpio_direction_output(config->reset_gpio, 1);
+ gpio_direction_output(phy->reset_gpio, 1);
clk_prepare_enable(phy->clk);
msleep(1);
@@ -603,10 +602,8 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy)
static int ulpi_phy_power_off(struct tegra_usb_phy *phy)
{
- struct tegra_ulpi_config *config = phy->config;
-
clk_disable(phy->clk);
- return gpio_direction_output(config->reset_gpio, 0);
+ return gpio_direction_output(phy->reset_gpio, 0);
}
static int tegra_phy_init(struct usb_phy *x)
@@ -622,18 +619,18 @@ static int tegra_phy_init(struct usb_phy *x)
pr_err("%s: can't get ulpi clock\n", __func__);
return PTR_ERR(phy->clk);
}
- if (!gpio_is_valid(ulpi_config->reset_gpio))
- ulpi_config->reset_gpio =
- of_get_named_gpio(phy->dev->of_node,
- "nvidia,phy-reset-gpio", 0);
- if (!gpio_is_valid(ulpi_config->reset_gpio)) {
+
+ phy->reset_gpio =
+ of_get_named_gpio(phy->dev->of_node,
+ "nvidia,phy-reset-gpio", 0);
+ if (!gpio_is_valid(phy->reset_gpio)) {
pr_err("%s: invalid reset gpio: %d\n", __func__,
- ulpi_config->reset_gpio);
+ phy->reset_gpio);
err = -EINVAL;
goto err1;
}
- gpio_request(ulpi_config->reset_gpio, "ulpi_phy_reset_b");
- gpio_direction_output(ulpi_config->reset_gpio, 0);
+ gpio_request(phy->reset_gpio, "ulpi_phy_reset_b");
+ gpio_direction_output(phy->reset_gpio, 0);
phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0);
phy->ulpi->io_priv = phy->regs + ULPI_VIEWPORT;
} else {
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index a7af923..6cfb8f1 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -62,6 +62,7 @@ struct tegra_usb_phy {
struct device *dev;
bool is_legacy_phy;
bool is_ulpi_phy;
+ int reset_gpio;
};
struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
--
1.7.0.4
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