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drm/bridge_connector: implement oob_hotplug_event

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Implement the oob_hotplug_event() callback. Translate it to the HPD
notification sent to the HPD bridge in the chain.

Reviewed-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20231009174048.2695981-4-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231009174048.2695981-4-dmitry.baryshkov@linaro.org
This commit is contained in:
Dmitry Baryshkov 2023-10-09 20:40:48 +03:00
parent 6ec2cf8142
commit ff5f9ae981
1 changed files with 28 additions and 3 deletions
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31
drivers/gpu/drm/drm_bridge_connector.c
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@ -5,6 +5,8 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/property.h>
#include <linux/slab.h>
#include <drm/drm_atomic_state_helper.h>
@ -107,10 +109,9 @@ static void drm_bridge_connector_hpd_notify(struct drm_connector *connector,
}
}
static void drm_bridge_connector_hpd_cb(void *cb_data,
enum drm_connector_status status)
static void drm_bridge_connector_handle_hpd(struct drm_bridge_connector *drm_bridge_connector,
enum drm_connector_status status)
{
struct drm_bridge_connector *drm_bridge_connector = cb_data;
struct drm_connector *connector = &drm_bridge_connector->base;
struct drm_device *dev = connector->dev;
@ -123,6 +124,21 @@ static void drm_bridge_connector_hpd_cb(void *cb_data,
drm_kms_helper_connector_hotplug_event(connector);
}
static void drm_bridge_connector_hpd_cb(void *cb_data,
enum drm_connector_status status)
{
drm_bridge_connector_handle_hpd(cb_data, status);
}
static void drm_bridge_connector_oob_hotplug_event(struct drm_connector *connector,
enum drm_connector_status status)
{
struct drm_bridge_connector *bridge_connector =
to_drm_bridge_connector(connector);
drm_bridge_connector_handle_hpd(bridge_connector, status);
}
static void drm_bridge_connector_enable_hpd(struct drm_connector *connector)
{
struct drm_bridge_connector *bridge_connector =
@ -191,6 +207,8 @@ static void drm_bridge_connector_destroy(struct drm_connector *connector)
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
fwnode_handle_put(connector->fwnode);
kfree(bridge_connector);
}
@ -216,6 +234,7 @@ static const struct drm_connector_funcs drm_bridge_connector_funcs = {
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
.debugfs_init = drm_bridge_connector_debugfs_init,
.oob_hotplug_event = drm_bridge_connector_oob_hotplug_event,
};
/* -----------------------------------------------------------------------------
@ -352,6 +371,12 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
if (!drm_bridge_get_next_bridge(bridge))
connector_type = bridge->type;
#ifdef CONFIG_OF
if (!drm_bridge_get_next_bridge(bridge) &&
bridge->of_node)
connector->fwnode = fwnode_handle_get(of_fwnode_handle(bridge->of_node));
#endif
if (bridge->ddc)
ddc = bridge->ddc;