+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
* Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __GENERIC_PHY_H
#define __GENERIC_PHY_H
+#include <dm/ofnode.h>
+
+struct ofnode_phandle_args;
/**
* struct phy - A handle to (allowing control of) a single phy port.
* @args: The phy specifier values from device tree.
* @return 0 if OK, or a negative error code.
*/
- int (*of_xlate)(struct phy *phy,
- struct fdtdec_phandle_args *args);
+ int (*of_xlate)(struct phy *phy, struct ofnode_phandle_args *args);
/**
* init - initialize the hardware.
* @return 0 if OK, or a negative error code
*/
int (*power_off)(struct phy *phy);
+
+ /**
+ * configure - configure a PHY device
+ *
+ * @phy: PHY port to be configured
+ * @params: PHY Parameters, underlying data is specific to the PHY function
+ *
+ * During runtime, the PHY may need to be configured for it's main function.
+ * This function configures the PHY for it's main function following
+ * power_on/off() after beeing initialized.
+ *
+ * @return 0 if OK, or a negative error code
+ */
+ int (*configure)(struct phy *phy, void *params);
};
+/**
+ * struct phy_bulk - A handle to (allowing control of) a bulk of phys.
+ *
+ * Consumers provide storage for the phy bulk. The content of the structure is
+ * managed solely by the phy API. A phy bulk struct is initialized
+ * by "get"ing the phy bulk struct.
+ * The phy bulk struct is passed to all other bulk phy APIs to apply
+ * the API to all the phy in the bulk struct.
+ *
+ * @phys: An array of phy handles.
+ * @count: The number of phy handles in the phys array.
+ */
+struct phy_bulk {
+ struct phy *phys;
+ unsigned int count;
+};
+
+#ifdef CONFIG_PHY
/**
* generic_phy_init() - initialize the PHY port
*/
int generic_phy_power_off(struct phy *phy);
+/**
+ * generic_phy_configure() - configure a PHY device
+ *
+ * @phy: PHY port to be configured
+ * @params: PHY Parameters, underlying data is specific to the PHY function
+ * @return 0 if OK, or a negative error code
+ */
+int generic_phy_configure(struct phy *phy, void *params);
+
/**
* generic_phy_get_by_index() - Get a PHY device by integer index.
struct phy *phy);
/**
+ * generic_phy_get_by_index_nodev() - Get a PHY device by integer index
+ * without a device
+ *
+ * @node: The client ofnode.
+ * @index: The index in the list of available PHYs
+ * @phy: A pointer to the PHY port
+ *
+ * This is a version of generic_phy_get_by_index() that does not use a device.
+ *
+ * This looks up a PHY device for a client device based on its ofnode and on
+ * its position in the list of the possible PHYs.
+ *
+ * example:
+ * usb1: usb_otg_ss@xxx {
+ * compatible = "xxx";
+ * reg = <xxx>;
+ * .
+ * .
+ * phys = <&usb2_phy>, <&usb3_phy>;
+ * .
+ * .
+ * };
+ * the USB2 phy can be accessed by passing index '0' and the USB3 phy can
+ * be accessed by passing index '1'
+ *
+ * @return 0 if OK, or a negative error code
+ */
+int generic_phy_get_by_index_nodev(ofnode node, int index, struct phy *phy);
+
+/**
* generic_phy_get_by_name() - Get a PHY device by its name.
*
* @user: the client device
int generic_phy_get_by_name(struct udevice *user, const char *phy_name,
struct phy *phy);
+/**
+ * generic_phy_get_bulk - Get all phys of a device.
+ *
+ * This looks up and gets all phys of the consumer device; each device is
+ * assumed to have n phys associated with it somehow, and this function finds
+ * and gets all of them in a separate structure.
+ *
+ * @dev: The consumer device.
+ * @bulk A pointer to a phy bulk struct to initialize.
+ * @return 0 if OK, or a negative error code.
+ */
+int generic_phy_get_bulk(struct udevice *dev, struct phy_bulk *bulk);
+
+/**
+ * generic_phy_init_bulk() - Initialize all phys in a phy bulk struct.
+ *
+ * @bulk: A phy bulk struct that was previously successfully requested
+ * by generic_phy_get_bulk().
+ * @return 0 if OK, or negative error code.
+ */
+int generic_phy_init_bulk(struct phy_bulk *bulk);
+
+/**
+ * generic_phy_exit_bulk() - de-initialize all phys in a phy bulk struct.
+ *
+ * @bulk: A phy bulk struct that was previously successfully requested
+ * by generic_phy_get_bulk().
+ * @return 0 if OK, or negative error code.
+ */
+int generic_phy_exit_bulk(struct phy_bulk *bulk);
+
+/**
+ * generic_phy_power_on_bulk() - Power on all phys in a phy bulk struct.
+ *
+ * @bulk: A phy bulk struct that was previously successfully requested
+ * by generic_phy_get_bulk().
+ * @return 0 if OK, or negative error code.
+ */
+int generic_phy_power_on_bulk(struct phy_bulk *bulk);
+
+/**
+ * generic_phy_power_off_bulk() - Power off all phys in a phy bulk struct.
+ *
+ * @bulk: A phy bulk struct that was previously successfully requested
+ * by generic_phy_get_bulk().
+ * @return 0 if OK, or negative error code.
+ */
+int generic_phy_power_off_bulk(struct phy_bulk *bulk);
+
+#else /* CONFIG_PHY */
+
+static inline int generic_phy_init(struct phy *phy)
+{
+ return 0;
+}
+
+static inline int generic_phy_exit(struct phy *phy)
+{
+ return 0;
+}
+
+static inline int generic_phy_reset(struct phy *phy)
+{
+ return 0;
+}
+
+static inline int generic_phy_power_on(struct phy *phy)
+{
+ return 0;
+}
+
+static inline int generic_phy_power_off(struct phy *phy)
+{
+ return 0;
+}
+
+static inline int generic_phy_get_by_index(struct udevice *user, int index,
+ struct phy *phy)
+{
+ return 0;
+}
+
+static inline int generic_phy_get_by_name(struct udevice *user, const char *phy_name,
+ struct phy *phy)
+{
+ return 0;
+}
+
+static inline int
+generic_phy_get_bulk(struct udevice *dev, struct phy_bulk *bulk)
+{
+ return 0;
+}
+
+static inline int generic_phy_init_bulk(struct phy_bulk *bulk)
+{
+ return 0;
+}
+
+static inline int generic_phy_exit_bulk(struct phy_bulk *bulk)
+{
+ return 0;
+}
+
+static inline int generic_phy_power_on_bulk(struct phy_bulk *bulk)
+{
+ return 0;
+}
+
+static inline int generic_phy_power_off_bulk(struct phy_bulk *bulk)
+{
+ return 0;
+}
+
+#endif /* CONFIG_PHY */
+
+/**
+ * generic_phy_valid() - check if PHY port is valid
+ *
+ * @phy: the PHY port to check
+ * @return TRUE if valid, or FALSE
+ */
+static inline bool generic_phy_valid(struct phy *phy)
+{
+ return phy && phy->dev;
+}
+
#endif /*__GENERIC_PHY_H */
projects / platform / kernel / u-boot.git / blobdiff