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Message-Id: <20230824235636.1436665-4-dmitry.baryshkov@linaro.org>
Date: Fri, 25 Aug 2023 02:56:36 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
Simon Ser <contact@...rsion.fr>, Janne Grunau <j@...nau.net>,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
intel-gfx@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
linux-usb@...r.kernel.org
Subject: [PATCH v7 3/3] drm/bridge_connector: implement oob_hotplug_event
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@...nau.net>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
drivers/gpu/drm/drm_bridge_connector.c | 29 +++++++++++++++++++++++---
1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
index 10b52224db37..3aa129b3f8e9 100644
--- a/drivers/gpu/drm/drm_bridge_connector.c
+++ b/drivers/gpu/drm/drm_bridge_connector.c
@@ -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 =
@@ -216,6 +232,7 @@ 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 +369,12 @@ 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;
--
2.39.2
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