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i2c: Fix i2c speed command

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This corrects i2c core to interpret the value returned by
i2c_set_bus_speed as a success indicator rather than the
actual speed that was set. When i2c_set_bus_speed returns
a failure code, the speed is unknown so the adapter speed
is set to zero.

Signed-off-by: Darwin Rambo <drambo@broadcom.com>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Steve Rae <srae@broadcom.com>
Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
This commit is contained in:
Darwin Rambo 2013-12-13 12:57:26 -08:00 • committed by Heiko Schocher
parent 6d001e7df9
commit 7cc1b02f8f
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/i2c_core.c
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@ -349,7 +349,7 @@ unsigned int i2c_set_bus_speed(unsigned int speed)
return 0; return 0;
ret = I2C_ADAP->set_bus_speed(I2C_ADAP, speed); ret = I2C_ADAP->set_bus_speed(I2C_ADAP, speed);
if (gd->flags & GD_FLG_RELOC) if (gd->flags & GD_FLG_RELOC)
I2C_ADAP->speed = ret; I2C_ADAP->speed = (ret == 0) ? speed : 0;
return ret; return ret;
} }