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drm/fb-helper: dpms_legacy(): Only set on connectors in use

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For each enabled crtc the functions sets dpms on all registered connectors.
Limit this to only doing it once and on the connectors actually in use.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Fixes: 023eb571a1 ("drm: correctly update connector DPMS status in drm_fb_helper")
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326175546.18126-3-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes 2019-03-26 18:55:32 +01:00
parent b9ed8cff03
commit 65a102f680
1 changed files with 5 additions and 6 deletions
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11
drivers/gpu/drm/drm_fb_helper.c
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@ -639,20 +639,19 @@ static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
static void dpms_legacy(struct drm_fb_helper *fb_helper, int dpms_mode)
{
struct drm_device *dev = fb_helper->dev;
struct drm_crtc *crtc;
struct drm_connector *connector;
struct drm_mode_set *modeset;
int i, j;
drm_modeset_lock_all(dev);
for (i = 0; i < fb_helper->crtc_count; i++) {
crtc = fb_helper->crtc_info[i].mode_set.crtc;
modeset = &fb_helper->crtc_info[i].mode_set;
if (!crtc->enabled)
if (!modeset->crtc->enabled)
continue;
/* Walk the connectors & encoders on this fb turning them on/off */
drm_fb_helper_for_each_connector(fb_helper, j) {
connector = fb_helper->connector_info[j]->connector;
for (j = 0; j < modeset->num_connectors; j++) {
connector = modeset->connectors[j];
connector->funcs->dpms(connector, dpms_mode);
drm_object_property_set_value(&connector->base,
dev->mode_config.dpms_property, dpms_mode);