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| author | Viresh Kumar <viresh.kumar@st.com> | 2011-11-17 11:02:20 +0530 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-01-09 00:37:42 +0100 |
| commit | 1a6e4b7415339e3b11a87cff0d701b8a2e55f062 (patch) | |
| tree | fbd5151ac34bf908826f4bbf8b298404660a8de1 /drivers/mfd/stmpe.h | |
| parent | 71e58782d2e054798f91473f5452ffe65e2a5ff8 (diff) | |
| download | linux-1a6e4b7415339e3b11a87cff0d701b8a2e55f062.tar.gz linux-1a6e4b7415339e3b11a87cff0d701b8a2e55f062.tar.bz2 linux-1a6e4b7415339e3b11a87cff0d701b8a2e55f062.zip | |
mfd: Separate out STMPE controller and interface specific code
Few STMPE controller can have register interface over SPI or I2C. Current
implementation only supports I2C and all code is present in a single file
stmpe.c. It would be better to separate out I2C interface specific code from
controller specific code. Later SPI specific code can be added in a separate
file.
This patch separates out I2C and controller specific code into separate files,
making stmpe.c independent of I2C.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/stmpe.h')
| -rw-r--r-- | drivers/mfd/stmpe.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h index e4ee38956583..18d89a68ce40 100644 --- a/drivers/mfd/stmpe.h +++ b/drivers/mfd/stmpe.h @@ -8,6 +8,14 @@ #ifndef __STMPE_H #define __STMPE_H +#include <linux/device.h> +#include <linux/mfd/core.h> +#include <linux/mfd/stmpe.h> +#include <linux/printk.h> +#include <linux/types.h> + +extern const struct dev_pm_ops stmpe_dev_pm_ops; + #ifdef STMPE_DUMP_BYTES static inline void stmpe_dump_bytes(const char *str, const void *buf, size_t len) @@ -67,6 +75,31 @@ struct stmpe_variant_info { int (*enable_autosleep)(struct stmpe *stmpe, int autosleep_timeout); }; +/** + * struct stmpe_client_info - i2c or spi specific routines/info + * @data: client specific data + * @read_byte: read single byte + * @write_byte: write single byte + * @read_block: read block or multiple bytes + * @write_block: write block or multiple bytes + * @init: client init routine, called during probe + */ +struct stmpe_client_info { + void *data; + int irq; + void *client; + struct device *dev; + int (*read_byte)(struct stmpe *stmpe, u8 reg); + int (*write_byte)(struct stmpe *stmpe, u8 reg, u8 val); + int (*read_block)(struct stmpe *stmpe, u8 reg, u8 len, u8 *values); + int (*write_block)(struct stmpe *stmpe, u8 reg, u8 len, + const u8 *values); + void (*init)(struct stmpe *stmpe); +}; + +int stmpe_probe(struct stmpe_client_info *ci, int partnum); +int stmpe_remove(struct stmpe *stmpe); + #define STMPE_ICR_LSB_HIGH (1 << 2) #define STMPE_ICR_LSB_EDGE (1 << 1) #define STMPE_ICR_LSB_GIM (1 << 0) |