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drm/radeon: update mode_valid testing for DP 

When we have a passive adapter validate the clocks
against the HMDI/DVI limits.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-06-16 17:42:34 -04:00
parent 5c868229da
commit 6536a3a667
1 changed files with 15 additions and 4 deletions
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19
drivers/gpu/drm/radeon/radeon_connectors.c
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@ -1549,6 +1549,8 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
static int radeon_dp_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_device *dev = connector->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
@ -1579,14 +1581,23 @@ static int radeon_dp_mode_valid(struct drm_connector *connector,
return MODE_PANEL;
}
}
return MODE_OK;
} else {
if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
(radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
(radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
return radeon_dp_mode_valid_helper(connector, mode);
else
return MODE_OK;
} else {
if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
/* HDMI 1.3+ supports max clock of 340 Mhz */
if (mode->clock > 340000)
return MODE_CLOCK_HIGH;
} else {
if (mode->clock > 165000)
return MODE_CLOCK_HIGH;
}
}
}
return MODE_OK;
}
static const struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {