Date: Sat, 14 Dec 2013 00:40:47 +0000 (UTC) From: Jean-Sebastien Pedron <dumbbell@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-releng@freebsd.org Subject: svn commit: r259370 - releng/10.0/sys/dev/drm2/radeon Message-ID: <201312140040.rBE0elv3005240@svn.freebsd.org>
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Author: dumbbell Date: Sat Dec 14 00:40:47 2013 New Revision: 259370 URL: http://svnweb.freebsd.org/changeset/base/259370 Log: MFC r259236: 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> Approved by: re (gjb) Modified: releng/10.0/sys/dev/drm2/radeon/atombios_dp.c Directory Properties: releng/10.0/ (props changed) Modified: releng/10.0/sys/dev/drm2/radeon/atombios_dp.c ============================================================================== --- releng/10.0/sys/dev/drm2/radeon/atombios_dp.c Sat Dec 14 00:36:29 2013 (r259369) +++ releng/10.0/sys/dev/drm2/radeon/atombios_dp.c Sat Dec 14 00:40:47 2013 (r259370) @@ -272,7 +272,7 @@ int radeon_dp_i2c_aux_ch(device_t dev, i 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;
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