diff options
Diffstat (limited to 'include/linux/i2c')
| -rw-r--r-- | include/linux/i2c/pcf857x.h | 3 | ||||
| -rw-r--r-- | include/linux/i2c/tps65010.h | 30 |
2 files changed, 31 insertions, 2 deletions
diff --git a/include/linux/i2c/pcf857x.h b/include/linux/i2c/pcf857x.h index ba8ea6e1647..0767a2a6b2f 100644 --- a/include/linux/i2c/pcf857x.h +++ b/include/linux/i2c/pcf857x.h @@ -12,8 +12,7 @@ * @context: optional parameter passed to setup() and teardown() * * In addition to the I2C_BOARD_INFO() state appropriate to each chip, - * the i2c_board_info used with the pcf875x driver must provide the - * chip "type" ("pcf8574", "pcf8574a", "pcf8575", "pcf8575c") and its + * the i2c_board_info used with the pcf875x driver must provide its * platform_data (pointer to one of these structures) with at least * the gpio_base value initialized. * diff --git a/include/linux/i2c/tps65010.h b/include/linux/i2c/tps65010.h index 7021635ed6a..918c5354d9b 100644 --- a/include/linux/i2c/tps65010.h +++ b/include/linux/i2c/tps65010.h @@ -152,5 +152,35 @@ extern int tps65010_config_vregs1(unsigned value); */ extern int tps65013_set_low_pwr(unsigned mode); + +struct i2c_client; + +/** + * struct tps65010_board - packages GPIO and LED lines + * @base: the GPIO number to assign to GPIO-1 + * @outmask: bit (N-1) is set to allow GPIO-N to be used as an + * (open drain) output + * @setup: optional callback issued once the GPIOs are valid + * @teardown: optional callback issued before the GPIOs are invalidated + * @context: optional parameter passed to setup() and teardown() + * + * Board data may be used to package the GPIO (and LED) lines for use + * in by the generic GPIO and LED frameworks. The first four GPIOs + * starting at gpio_base are GPIO1..GPIO4. The next two are LED1/nPG + * and LED2 (with hardware blinking capability, not currently exposed). + * + * The @setup callback may be used with the kind of board-specific glue + * which hands the (now-valid) GPIOs to other drivers, or which puts + * devices in their initial states using these GPIOs. + */ +struct tps65010_board { + int base; + unsigned outmask; + + int (*setup)(struct i2c_client *client, void *context); + int (*teardown)(struct i2c_client *client, void *context); + void *context; +}; + #endif /* __LINUX_I2C_TPS65010_H */ |