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drm/radeon/kms: fix hdmi duallink checks

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All pre-SI chips are limited to 165 Mhz for single link.
Code in question will be re-enabled when SI support is added.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44755
https://bugzilla.kernel.org/show_bug.cgi?id=42887

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-03-07 19:05:01 -05:00 committed by Dave Airlie
parent cf00790dea
commit 38aa4a568b
2 changed files with 3 additions and 5 deletions
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2
drivers/gpu/drm/radeon/radeon_connectors.c
View File

@ -1057,7 +1057,7 @@ static int radeon_dvi_mode_valid(struct drm_connector *connector,
(radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
return MODE_OK;
else if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) {
if (ASIC_IS_DCE3(rdev)) {
if (0) {
/* HDMI 1.3+ supports max clock of 340 Mhz */
if (mode->clock > 340000)
return MODE_CLOCK_HIGH;

6
drivers/gpu/drm/radeon/radeon_encoders.c
View File

@ -307,8 +307,6 @@ void radeon_panel_mode_fixup(struct drm_encoder *encoder,
bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
u32 pixel_clock)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct drm_connector *connector;
struct radeon_connector *radeon_connector;
struct radeon_connector_atom_dig *dig_connector;
@ -326,7 +324,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
case DRM_MODE_CONNECTOR_HDMIB:
if (radeon_connector->use_digital) {
/* HDMI 1.3 supports up to 340 Mhz over single link */
if (ASIC_IS_DCE3(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
if (0 && drm_detect_hdmi_monitor(radeon_connector->edid)) {
if (pixel_clock > 340000)
return true;
else
@ -348,7 +346,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
return false;
else {
/* HDMI 1.3 supports up to 340 Mhz over single link */
if (ASIC_IS_DCE3(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
if (0 && drm_detect_hdmi_monitor(radeon_connector->edid)) {
if (pixel_clock > 340000)
return true;
else