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authorWolfram Sang <wsa+renesas@sang-engineering.com>2018-01-09 14:58:57 +0100
committerWolfram Sang <wsa@the-dreams.de>2018-01-16 00:04:30 +0100
commit72b08fcc15dc6a2d211880e4dc7cf5314e9ab750 (patch)
treef37c366272e599b0bbde4e5dac0625335802ad47 /drivers/i2c
parent8092178ffe67dbd1f987e2e308e871c774774a16 (diff)
i2c: ensure SDA is released in recovery if SDA is controllable
If we have a function to control SDA, we should ensure that SDA is not held down by us. So, release the GPIO in this case. Tested-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/i2c-core-base.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index a8b3fbe16fa0..54cef80990a1 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -169,6 +169,8 @@ int i2c_generic_scl_recovery(struct i2c_adapter *adap)
bri->prepare_recovery(adap);
bri->set_scl(adap, val);
+ if (bri->set_sda)
+ bri->set_sda(adap, 1);
ndelay(RECOVERY_NDELAY);
/*

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