aboutsummaryrefslogtreecommitdiff
path: root/include/linux/i2c
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/i2c')
-rw-r--r--include/linux/i2c/tps65010.h30
1 files changed, 30 insertions, 0 deletions
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 */