[PATCH/RFT,3/6] i2c: designware: set SDA as output for recovery

Message ID 20180713210920.3648-4-wsa+renesas@sang-engineering.com
State New
Headers show
Series
  • i2c: recovery: fix GPIO usage for recovery
Related show

Commit Message

Wolfram Sang July 13, 2018, 9:09 p.m.
This allows for sending STOP when generating pulses which is much more
robust because it will bring clients into a default state.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/i2c/busses/i2c-designware-master.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index a546db80f53e..25981efc844e 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -674,7 +674,7 @@  static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev)
 	}
 	rinfo->scl_gpiod = gpio;
 
-	gpio = devm_gpiod_get_optional(dev->dev, "sda", GPIOD_IN);
+	gpio = devm_gpiod_get_optional(dev->dev, "sda", GPIOD_OUT_HIGH_OPEN_DRAIN);
 	if (IS_ERR(gpio))
 		return PTR_ERR(gpio);
 	rinfo->sda_gpiod = gpio;