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| author | dumbbell <dumbbell@FreeBSD.org> | 2013-12-11 23:06:03 +0000 |
|---|---|---|
| committer | dumbbell <dumbbell@FreeBSD.org> | 2013-12-11 23:06:03 +0000 |
| commit | 91ba4c72da3601dc554ecaee0588fd32c38b1723 (patch) | |
| tree | 2a9a8016f35bb350fdff06ccb4282eedc997e2be | |
| parent | 66bcaa96d680466f9c02406d1c9c6f6fa8147efe (diff) | |
| download | FreeBSD-src-91ba4c72da3601dc554ecaee0588fd32c38b1723.zip FreeBSD-src-91ba4c72da3601dc554ecaee0588fd32c38b1723.tar.gz | |
MFC r259104:
drm/radeon: radeon_dp_i2c_aux_ch() must return 0 on FreeBSD
The code was unmodified compared to Linux and returned the amount of
received bytes from the i2c bus. This led to non-working i2c bus and
failure to eg. read monitor's EDID, if connected to DisplayPort.
Tested by: Mikaël Urankar <mikael.urankar@gmail.com>
| -rw-r--r-- | sys/dev/drm2/radeon/atombios_dp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/drm2/radeon/atombios_dp.c b/sys/dev/drm2/radeon/atombios_dp.c index 3c0f7f5..f92df62 100644 --- a/sys/dev/drm2/radeon/atombios_dp.c +++ b/sys/dev/drm2/radeon/atombios_dp.c @@ -272,7 +272,7 @@ int radeon_dp_i2c_aux_ch(device_t dev, int mode, u8 write_byte, u8 *read_byte) case AUX_I2C_REPLY_ACK: if (mode == MODE_I2C_READ) *read_byte = reply[0]; - return ret; + return (0); /* Return ret on Linux. */ case AUX_I2C_REPLY_NACK: DRM_DEBUG_KMS("aux_i2c nack\n"); return -EREMOTEIO; |
