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drm/radeon: re-enable sw ACR support on pre-DCE4

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HW ACR support may have issues on some older chips, so
use SW ACR for now until we've tested further.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: Rafał Miłecki <zajec5@gmail.com>
This commit is contained in:
Alex Deucher 2013-10-10 11:47:01 -04:00
parent 4076a65544
commit b852c98501
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/radeon/r600_hdmi.c
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@ -451,6 +451,7 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
}
WREG32(HDMI0_ACR_PACKET_CONTROL + offset,
HDMI0_ACR_SOURCE | /* select SW CTS value - XXX verify that hw CTS works on all families */
HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
WREG32(HDMI0_VBI_PACKET_CONTROL + offset,