diff options
Diffstat (limited to 'include/linux/mfd/mcp.h')
| -rw-r--r-- | include/linux/mfd/mcp.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/linux/mfd/mcp.h b/include/linux/mfd/mcp.h new file mode 100644 index 000000000..fd5cafc77 --- /dev/null +++ b/include/linux/mfd/mcp.h @@ -0,0 +1,63 @@ +/* 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 |