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-rw-r--r--include/regmap.h181
1 files changed, 30 insertions, 151 deletions
diff --git a/include/regmap.h b/include/regmap.h
index db84c7a534..f2c395a896 100644
--- a/include/regmap.h
+++ b/include/regmap.h
@@ -2,156 +2,35 @@
#ifndef __REGMAP_H
#define __REGMAP_H
-enum regmap_endian {
- /* Unspecified -> 0 -> Backwards compatible default */
- REGMAP_ENDIAN_DEFAULT = 0,
- REGMAP_ENDIAN_BIG,
- REGMAP_ENDIAN_LITTLE,
- REGMAP_ENDIAN_NATIVE,
-};
-
-/**
- * Configuration for the register map of a device.
- *
- * @name: Optional name of the regmap. Useful when a device has multiple
- * register regions.
- *
- * @reg_bits: Number of bits in a register address, mandatory.
- * @reg_stride: The register address stride. Valid register addresses are a
- * multiple of this value. If set to 0, a value of 1 will be
- * used.
- * @pad_bits: Number of bits of padding between register and value.
- * @val_bits: Number of bits in a register value, mandatory.
- *
- * @max_register: Optional, specifies the maximum valid register index.
- */
-struct regmap_config {
- const char *name;
-
- int reg_bits;
- int reg_stride;
- int pad_bits;
- int val_bits;
-
- unsigned int max_register;
-
- enum regmap_endian reg_format_endian;
- enum regmap_endian val_format_endian;
-};
-
-typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg,
- unsigned int *val);
-typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg,
- unsigned int val);
-
-struct regmap_bus {
- regmap_hw_reg_write reg_write;
- regmap_hw_reg_read reg_read;
- enum regmap_endian reg_format_endian_default;
- enum regmap_endian val_format_endian_default;
-};
-
-struct device_d;
-struct device_node;
-
-struct regmap *regmap_init(struct device_d *dev,
- const struct regmap_bus *bus,
- void *bus_context,
- const struct regmap_config *config);
-
-struct clk;
-
-/**
- * regmap_init_mmio_clk() - Initialise register map with register clock
- *
- * @dev: Device that will be interacted with
- * @clk_id: register clock consumer ID
- * @regs: Pointer to memory-mapped IO region
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
-struct regmap *regmap_init_mmio_clk(struct device_d *dev, const char *clk_id,
- void __iomem *regs,
- const struct regmap_config *config);
-
-/**
- * regmap_init_i2c() - Initialise i2c register map
- *
- * @i2c: Device that will be interacted with
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer
- * to a struct regmap.
- */
-struct i2c_client;
-struct regmap *regmap_init_i2c(struct i2c_client *i2c,
- const struct regmap_config *config);
-
-/**
- * regmap_init_mmio() - Initialise register map
- *
- * @dev: Device that will be interacted with
- * @regs: Pointer to memory-mapped IO region
- * @config: Configuration for register map
- *
- * The return value will be an ERR_PTR() on error or a valid pointer to
- * a struct regmap.
- */
-#define regmap_init_mmio(dev, regs, config) \
- regmap_init_mmio_clk(dev, NULL, regs, config)
-
-
-int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk);
-void regmap_mmio_detach_clk(struct regmap *map);
-
-void regmap_exit(struct regmap *map);
-
-struct regmap *dev_get_regmap(struct device_d *dev, const char *name);
-struct device_d *regmap_get_device(struct regmap *map);
-
-int regmap_register_cdev(struct regmap *map, const char *name);
-
-int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
-int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
-
-int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
- size_t val_len);
-int regmap_bulk_write(struct regmap *map, unsigned int reg,
- const void *val, size_t val_len);
-
-int regmap_get_val_bytes(struct regmap *map);
-int regmap_get_max_register(struct regmap *map);
-int regmap_get_reg_stride(struct regmap *map);
-
-int regmap_write_bits(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val);
-int regmap_update_bits(struct regmap *map, unsigned int reg,
- unsigned int mask, unsigned int val);
-
-/**
- * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs
- *
- * @map: Regmap to read from
- * @addr: Address to poll
- * @val: Unsigned integer variable to read the value into
- * @cond: Break condition (usually involving @val)
- * @timeout_us: Timeout in us, 0 means never timeout
- *
- * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
- * error return value in case of a error read. In the two former cases,
- * the last read value at @addr is stored in @val. Must not be called
- * from atomic context if sleep_us or timeout_us are used.
- *
- * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
- */
-#define regmap_read_poll_timeout(map, addr, val, cond, timeout_us) \
-({ \
- int __ret, __tmp; \
- __tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \
- timeout_us, (map), (addr), &(val)); \
- __ret ?: __tmp; \
-})
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+extern void __compiletime_error("Last argument is now number of registers, not bytes. Fix "
+ "it and include <linux/regmap.h> instead")
+__regmap_bulk_api_changed(void);
+
+struct regmap;
+
+#ifndef regmap_bulk_read
+#define regmap_bulk_read regmap_bulk_read
+static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
+ size_t val_bytes)
+{
+ __regmap_bulk_api_changed();
+ return -1;
+}
+#endif
+
+#ifndef regmap_bulk_write
+#define regmap_bulk_write regmap_bulk_write
+static inline int regmap_bulk_write(struct regmap *map, unsigned int reg,
+ const void *val, size_t val_bytes)
+{
+ __regmap_bulk_api_changed();
+ return -1;
+}
+#endif
+
+#include <linux/regmap.h>
#endif /* __REGMAP_H */