Commit 2e97be73 authored by Alex Deucher's avatar Alex Deucher

drm/radeon/evergreen+: don't enable HPD interrupts on eDP/LVDS

Avoids potential interrupt storms when the display is disabled.

May fix:
https://bugzilla.kernel.org/show_bug.cgi?id=56041Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 64d7b8be
...@@ -819,6 +819,16 @@ void evergreen_hpd_init(struct radeon_device *rdev) ...@@ -819,6 +819,16 @@ void evergreen_hpd_init(struct radeon_device *rdev)
list_for_each_entry(connector, &dev->mode_config.connector_list, head) { list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector); struct radeon_connector *radeon_connector = to_radeon_connector(connector);
if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
/* don't try to enable hpd on eDP or LVDS avoid breaking the
* aux dp channel on imac and help (but not completely fix)
* https://bugzilla.redhat.com/show_bug.cgi?id=726143
* also avoid interrupt storms during dpms.
*/
continue;
}
switch (radeon_connector->hpd.hpd) { switch (radeon_connector->hpd.hpd) {
case RADEON_HPD_1: case RADEON_HPD_1:
WREG32(DC_HPD1_CONTROL, tmp); WREG32(DC_HPD1_CONTROL, tmp);
......
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