usb: move phy driver from mach-tegra to drivers/usb

As part of this patch:
	1. Moved existing tegra phy driver to drivers/USB directory.
	2. Added standard USB phy driver APIs to tegra phy driver.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
new file mode 100644
index 000000000000..176b1ca06ae4
--- /dev/null
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __TEGRA_USB_PHY_H
+#define __TEGRA_USB_PHY_H
+
+#include <linux/clk.h>
+#include <linux/usb/otg.h>
+
+struct tegra_utmip_config {
+	u8 hssync_start_delay;
+	u8 elastic_limit;
+	u8 idle_wait_delay;
+	u8 term_range_adj;
+	u8 xcvr_setup;
+	u8 xcvr_lsfslew;
+	u8 xcvr_lsrslew;
+};
+
+struct tegra_ulpi_config {
+	int reset_gpio;
+	const char *clk;
+};
+
+enum tegra_usb_phy_port_speed {
+	TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
+	TEGRA_USB_PHY_PORT_SPEED_LOW,
+	TEGRA_USB_PHY_PORT_SPEED_HIGH,
+};
+
+enum tegra_usb_phy_mode {
+	TEGRA_USB_PHY_MODE_DEVICE,
+	TEGRA_USB_PHY_MODE_HOST,
+};
+
+struct tegra_xtal_freq;
+
+struct tegra_usb_phy {
+	int instance;
+	const struct tegra_xtal_freq *freq;
+	void __iomem *regs;
+	void __iomem *pad_regs;
+	struct clk *clk;
+	struct clk *pll_u;
+	struct clk *pad_clk;
+	enum tegra_usb_phy_mode mode;
+	void *config;
+	struct usb_phy *ulpi;
+	struct usb_phy u_phy;
+	struct device *dev;
+};
+
+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 tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy);
+
+void tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy);
+
+void tegra_usb_phy_preresume(struct tegra_usb_phy *phy);
+
+void tegra_usb_phy_postresume(struct tegra_usb_phy *phy);
+
+void tegra_ehci_phy_restore_start(struct tegra_usb_phy *phy,
+				 enum tegra_usb_phy_port_speed port_speed);
+
+void tegra_ehci_phy_restore_end(struct tegra_usb_phy *phy);
+
+#endif /* __TEGRA_USB_PHY_H */