From 8b06260836ab47abbb5ea49d889660a0ed8adf90 Mon Sep 17 00:00:00 2001 From: Jan Luebbe Date: Wed, 8 Jul 2015 16:35:06 +0200 Subject: [PATCH] i2c: core: only use set_scl for bus recovery after calling prepare_recovery Using set_scl may be ineffective before calling the driver specific prepare_recovery callback, which might change into a test mode. So instead of setting SCL in i2c_generic_scl_recovery, move it to i2c_generic_recovery (after the optional prepare_recovery). Signed-off-by: Jan Luebbe Acked-by: Alexander Sverdlin Tested-by: Alexander Sverdlin Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index e6d4935161e4..8b64cf38beac 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -567,6 +567,9 @@ static int i2c_generic_recovery(struct i2c_adapter *adap) if (bri->prepare_recovery) bri->prepare_recovery(adap); + bri->set_scl(adap, val); + ndelay(RECOVERY_NDELAY); + /* * By this time SCL is high, as we need to give 9 falling-rising edges */ @@ -597,7 +600,6 @@ static int i2c_generic_recovery(struct i2c_adapter *adap) int i2c_generic_scl_recovery(struct i2c_adapter *adap) { - adap->bus_recovery_info->set_scl(adap, 1); return i2c_generic_recovery(adap); } EXPORT_SYMBOL_GPL(i2c_generic_scl_recovery);