| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * linux/drivers/mfd/mcp.h |
| * |
| * Copyright (C) 2001 Russell King, All Rights Reserved. |
| */ |
| #ifndef MCP_H |
| #define MCP_H |
| |
| #include <linux/device.h> |
| |
| struct mcp_ops; |
| |
| struct mcp { |
| struct module *owner; |
| struct mcp_ops *ops; |
| spinlock_t lock; |
| int use_count; |
| unsigned int sclk_rate; |
| unsigned int rw_timeout; |
| struct device attached_device; |
| }; |
| |
| struct mcp_ops { |
| void (*set_telecom_divisor)(struct mcp *, unsigned int); |
| void (*set_audio_divisor)(struct mcp *, unsigned int); |
| void (*reg_write)(struct mcp *, unsigned int, unsigned int); |
| unsigned int (*reg_read)(struct mcp *, unsigned int); |
| void (*enable)(struct mcp *); |
| void (*disable)(struct mcp *); |
| }; |
| |
| void mcp_set_telecom_divisor(struct mcp *, unsigned int); |
| void mcp_set_audio_divisor(struct mcp *, unsigned int); |
| void mcp_reg_write(struct mcp *, unsigned int, unsigned int); |
| unsigned int mcp_reg_read(struct mcp *, unsigned int); |
| void mcp_enable(struct mcp *); |
| void mcp_disable(struct mcp *); |
| #define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate) |
| |
| struct mcp *mcp_host_alloc(struct device *, size_t); |
| int mcp_host_add(struct mcp *, void *); |
| void mcp_host_del(struct mcp *); |
| void mcp_host_free(struct mcp *); |
| |
| struct mcp_driver { |
| struct device_driver drv; |
| int (*probe)(struct mcp *); |
| void (*remove)(struct mcp *); |
| }; |
| |
| int mcp_driver_register(struct mcp_driver *); |
| void mcp_driver_unregister(struct mcp_driver *); |
| |
| #define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device) |
| #define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d) |
| |
| static inline void *mcp_priv(struct mcp *mcp) |
| { |
| return mcp + 1; |
| } |
| |
| #endif |
