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drm/radeon/atom: workaround vbios bug in transmitter table on rs780

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Some rs780 asics seem to be affected as well.

See:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=91f3a6aaf280294b07c05dfe606e6c27b7ba3c72

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60791

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher
2013-10-10 16:45:27 -04:00
parent bc5bd37ce4
commit c23632d4e5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/radeon/atombios_encoders.c
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@@ -1655,7 +1655,7 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
* does the same thing and more. * does the same thing and more.
*/ */
if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730) && if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730) &&
(rdev->family != CHIP_RS880)) (rdev->family != CHIP_RS780) && (rdev->family != CHIP_RS880))
atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0); atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
} }
if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) { if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {