diff options
Diffstat (limited to 'drivers/phy/phy-samsung-usb2.h')
| -rw-r--r-- | drivers/phy/phy-samsung-usb2.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/phy/phy-samsung-usb2.h b/drivers/phy/phy-samsung-usb2.h new file mode 100644 index 00000000000..45b3170652b --- /dev/null +++ b/drivers/phy/phy-samsung-usb2.h @@ -0,0 +1,67 @@ +/* + * Samsung SoC USB 1.1/2.0 PHY driver + * + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Author: Kamil Debski <k.debski@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _PHY_EXYNOS_USB2_H +#define _PHY_EXYNOS_USB2_H + +#include <linux/clk.h> +#include <linux/phy/phy.h> +#include <linux/device.h> +#include <linux/regmap.h> +#include <linux/spinlock.h> + +#define KHZ 1000 +#define MHZ (KHZ * KHZ) + +struct samsung_usb2_phy_driver; +struct samsung_usb2_phy_instance; +struct samsung_usb2_phy_config; + +struct samsung_usb2_phy_instance { + const struct samsung_usb2_common_phy *cfg; + struct phy *phy; + struct samsung_usb2_phy_driver *drv; + bool enabled; +}; + +struct samsung_usb2_phy_driver { + const struct samsung_usb2_phy_config *cfg; + struct clk *clk; + struct clk *ref_clk; + unsigned long ref_rate; + u32 ref_reg_val; + struct device *dev; + void __iomem *reg_phy; + struct regmap *reg_pmu; + struct regmap *reg_sys; + spinlock_t lock; + struct samsung_usb2_phy_instance instances[0]; +}; + +struct samsung_usb2_common_phy { + int (*power_on)(struct samsung_usb2_phy_instance *); + int (*power_off)(struct samsung_usb2_phy_instance *); + unsigned int id; + char *label; +}; + + +struct samsung_usb2_phy_config { + const struct samsung_usb2_common_phy *phys; + int (*rate_to_clk)(unsigned long, u32 *); + unsigned int num_phys; + bool has_mode_switch; +}; + +extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config; +extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config; +extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config; +#endif |