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| author | Ingo Molnar <mingo@kernel.org> | 2018-02-17 13:39:28 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-02-17 13:39:28 +0300 |
| commit | 7057bb975dab827997e0ca9dd92cafef0856b0cc (patch) | |
| tree | 7784dc59c03f25b6bc4fa5cc12d5b61cb8b53765 /drivers/i2c/algos/i2c-algo-bit.c | |
| parent | 33ea4b24277b06dbc55d7f5772a46f029600255e (diff) | |
| parent | 297f9233b53a08fd457815e19f1d6f2c3389857b (diff) | |
| download | linux-7057bb975dab827997e0ca9dd92cafef0856b0cc.tar.xz | |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-bit.c')
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-bit.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index 1147bddb8b2c..3df0efd69ae3 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -649,6 +649,11 @@ static int __i2c_bit_add_bus(struct i2c_adapter *adap, if (bit_adap->getscl == NULL) adap->quirks = &i2c_bit_quirk_no_clk_stretch; + /* Bring bus to a known state. Looks like STOP if bus is not free yet */ + setscl(bit_adap, 1); + udelay(bit_adap->udelay); + setsda(bit_adap, 1); + ret = add_adapter(adap); if (ret < 0) return ret; |