---

yaml
---
r: 210465
b: refs/heads/master
c: 5affb60
h: refs/heads/master
i:
  210463: e9c0840
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0dcc48c15f63ee86c2fcd33968b08d651f0360a5
+refs/heads/master: 5affb607720d734ca572b8a77c5c7d62d3042b6f

trunk/drivers/gpio/sx150x.c

@@ -459,17 +459,33 @@ static int sx150x_init_io(struct sx150x_chip *chip, u8 base, u16 cfg)
 	return err;
 }
 
-static int sx150x_init_hw(struct sx150x_chip *chip,
-			struct sx150x_platform_data *pdata)
+static int sx150x_reset(struct sx150x_chip *chip)
 {
-	int err = 0;
+	int err;
 
-	err = i2c_smbus_write_word_data(chip->client,
+	err = i2c_smbus_write_byte_data(chip->client,
 					chip->dev_cfg->reg_reset,
-					0x3412);
+					0x12);
 	if (err < 0)
 		return err;
 
+	err = i2c_smbus_write_byte_data(chip->client,
+					chip->dev_cfg->reg_reset,
+					0x34);
+	return err;
+}
+
+static int sx150x_init_hw(struct sx150x_chip *chip,
+			struct sx150x_platform_data *pdata)
+{
+	int err = 0;
+
+	if (pdata->reset_during_probe) {
+		err = sx150x_reset(chip);
+		if (err < 0)
+			return err;
+	}
+
 	err = sx150x_i2c_write(chip->client,
 			chip->dev_cfg->reg_misc,
 			0x01);

trunk/include/linux/i2c/sx150x.h

@@ -63,6 +63,9 @@
  *            IRQ lines will appear.  Similarly to gpio_base, the expander
  *            will create a block of irqs beginning at this number.
  *            This value is ignored if irq_summary is < 0.
+ * @reset_during_probe: If set to true, the driver will trigger a full
+ *                      reset of the chip at the beginning of the probe
+ *                      in order to place it in a known state.
  */
 struct sx150x_platform_data {
 	unsigned gpio_base;
@@ -73,6 +76,7 @@ struct sx150x_platform_data {
 	u16      io_polarity;
 	int      irq_summary;
 	unsigned irq_base;
+	bool     reset_during_probe;
 };
 
 #endif /* __LINUX_I2C_SX150X_H */