Messages in this thread Patch in this message | | | Date | Thu, 19 Apr 2012 14:03:05 -0700 | From | Greg KH <> | Subject | [ 02/75] drm/radeon/kms: fix DVO setup on some r4xx chips |
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3.3-stable review patch. If anyone has any objections, please let me know.
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From: Alex Deucher <alexander.deucher@amd.com>
commit afceb9319f21b18ee3bc15ee9a5f92e18ef8a8c9 upstream.
Some r4xx chips have the wrong frev in the DVOEncoderControl table. It should always be 1 on r4xx. Fixes modesetting on DVO on r4xx chips with the bad frev.
Reported by twied on #radeon.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/radeon/atombios_encoders.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -230,6 +230,10 @@ atombios_dvo_setup(struct drm_encoder *e if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev)) return; + /* some R4xx chips have the wrong frev */ + if (rdev->family <= CHIP_RV410) + frev = 1; + switch (frev) { case 1: switch (crev) {
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