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drm: Make the connector .detect() callback optional

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Many drivers (21 to be exact) create connectors that are always
connected (for instance to an LVDS or DSI panel). Instead of forcing
them to implement a dummy .detect() handler, make the callback optional
and consider the connector as always connected in that case.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Vincent Abriou <vincent.abriou@st.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[seanpaul fixed small conflict in rcar-du/rcar_du_lvdscon.c]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
This commit is contained in:
Laurent Pinchart
2016-11-29 22:56:30 +02:00
committed by Sean Paul
parent 87291e5dba
commit 949f08862d
27 changed files with 14 additions and 193 deletions
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14
drivers/gpu/drm/drm_probe_helper.c
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@@ -152,6 +152,14 @@ void drm_kms_helper_poll_enable_locked(struct drm_device *dev)
}
EXPORT_SYMBOL(drm_kms_helper_poll_enable_locked);
static enum drm_connector_status
drm_connector_detect(struct drm_connector *connector, bool force)
{
return connector->funcs->detect ?
connector->funcs->detect(connector, force) :
connector_status_connected;
}
/**
* drm_helper_probe_single_connector_modes - get complete set of display modes
* @connector: connector to probe
@@ -239,7 +247,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
if (connector->funcs->force)
connector->funcs->force(connector);
} else {
connector->status = connector->funcs->detect(connector, true);
connector->status = drm_connector_detect(connector, true);
}
/*
@@ -405,7 +413,7 @@ static void output_poll_execute(struct work_struct *work)
repoll = true;
connector->status = connector->funcs->detect(connector, false);
connector->status = drm_connector_detect(connector, false);
if (old_status != connector->status) {
const char *old, *new;
@@ -565,7 +573,7 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev)
old_status = connector->status;
connector->status = connector->funcs->detect(connector, false);
connector->status = drm_connector_detect(connector, false);
DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
connector->base.id,
connector->name,