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drm: Convert all helpers to drm_connector_list_iter

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Mostly nothing special (except making sure that really all error paths
and friends call iter_put).

v2: Don't forget the raw connector_list walking in
drm_helper_move_panel_connectors_to_head. That one unfortunately can't
be converted to the iterator helpers, but since it's just some list
splicing best to just wrap the entire thing up in one critical
section.

v3: Bail out after iter_put (Harry).

Cc: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161215155843.13408-1-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter
2016-12-15 16:58:43 +01:00
parent 613051dac4
commit c36a3254f7
6 changed files with 92 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/drm_probe_helper.c
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@@ -129,6 +129,7 @@ void drm_kms_helper_poll_enable_locked(struct drm_device *dev)
{
bool poll = false;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
unsigned long delay = DRM_OUTPUT_POLL_PERIOD;
WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
@@ -136,11 +137,13 @@ void drm_kms_helper_poll_enable_locked(struct drm_device *dev)
if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)
return;
drm_for_each_connector(connector, dev) {
drm_connector_list_iter_get(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT |
DRM_CONNECTOR_POLL_DISCONNECT))
poll = true;
}
drm_connector_list_iter_put(&conn_iter);
if (dev->mode_config.delayed_event) {
poll = true;
@@ -382,6 +385,7 @@ static void output_poll_execute(struct work_struct *work)
struct delayed_work *delayed_work = to_delayed_work(work);
struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work);
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
enum drm_connector_status old_status;
bool repoll = false, changed;
@@ -397,8 +401,8 @@ static void output_poll_execute(struct work_struct *work)
goto out;
}
drm_for_each_connector(connector, dev) {
drm_connector_list_iter_get(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
/* Ignore forced connectors. */
if (connector->force)
continue;
@@ -451,6 +455,7 @@ static void output_poll_execute(struct work_struct *work)
changed = true;
}
}
drm_connector_list_iter_put(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
@@ -562,6 +567,7 @@ EXPORT_SYMBOL(drm_kms_helper_poll_fini);
bool drm_helper_hpd_irq_event(struct drm_device *dev)
{
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
enum drm_connector_status old_status;
bool changed = false;
@@ -569,8 +575,8 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev)
return false;
mutex_lock(&dev->mode_config.mutex);
drm_for_each_connector(connector, dev) {
drm_connector_list_iter_get(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
/* Only handle HPD capable connectors. */
if (!(connector->polled & DRM_CONNECTOR_POLL_HPD))
continue;
@@ -586,7 +592,7 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev)
if (old_status != connector->status)
changed = true;
}
drm_connector_list_iter_put(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
if (changed)