---

yaml
---
r: 186916
b: refs/heads/master
c: a29aaf5
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e82c60ae7d3a7f19c4b9b3e7bd6ea298fa5efe93
+refs/heads/master: a29aaf55cd6faa75e35abfe00bd3ffc537490485

trunk/drivers/mfd/twl-core.c

@@ -958,6 +958,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	int				status;
 	unsigned			i;
 	struct twl4030_platform_data	*pdata = client->dev.platform_data;
+	u8 temp;
 
 	if (!pdata) {
 		dev_dbg(&client->dev, "no platform data?\n");
@@ -1025,6 +1026,18 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 			goto fail;
 	}
 
+	/* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
+	 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
+	 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
+	 */
+
+	if (twl_class_is_4030()) {
+		twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
+		temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
+		I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
+		twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
+	}
+
 	status = add_children(pdata, id->driver_data);
 fail:
 	if (status < 0)

trunk/include/linux/i2c/twl.h

@@ -239,6 +239,21 @@ int twl6030_interrupt_mask(u8 bit_mask, u8 offset);
 
 /*----------------------------------------------------------------------*/
 
+/*Interface Bit Register (INTBR) offsets
+ *(Use TWL_4030_MODULE_INTBR)
+ */
+
+#define REG_GPPUPDCTR1			0x0F
+
+/*I2C1 and I2C4(SR) SDA/SCL pull-up control bits */
+
+#define I2C_SCL_CTRL_PU			BIT(0)
+#define I2C_SDA_CTRL_PU			BIT(2)
+#define SR_I2C_SCL_CTRL_PU		BIT(4)
+#define SR_I2C_SDA_CTRL_PU		BIT(6)
+
+/*----------------------------------------------------------------------*/
+
 /*
  * Keypad register offsets (use TWL4030_MODULE_KEYPAD)
  * ... SIH/interrupt only