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drm/radeon/kms: don't poll dac load detect.

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This is slightly destructive, cpu intensive and can cause lockups.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2010-10-26 12:55:52 +10:00
parent e26fd1199e
commit c3cceeddf0
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/radeon/radeon_connectors.c
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@ -663,6 +663,11 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
ret = connector_status_connected;
}
} else {
/* if we aren't forcing don't do destructive polling */
if (!force)
return connector->status;
if (radeon_connector->dac_load_detect && encoder) {
encoder_funcs = encoder->helper_private;
ret = encoder_funcs->detect(encoder, connector);
@ -850,6 +855,11 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
if ((ret == connector_status_connected) && (radeon_connector->use_digital == true))
goto out;
if (!force) {
ret = connector->status;
goto out;
}
/* find analog encoder */
if (radeon_connector->dac_load_detect) {
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {