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From:   Bjorn Andersson <bjorn.andersson@linaro.org>
To:     Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
        Abhinav Kumar <quic_abhinavk@quicinc.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
        Kuogee Hsieh <quic_khsieh@quicinc.com>
Cc:     Stephen Boyd <swboyd@chromium.org>, linux-kernel@vger.kernel.org,
        dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
        linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
        linux-usb@vger.kernel.org
Subject: [PATCH v4 3/5] drm/bridge_connector: implement oob_hotplug_event
Date:   Mon,  2 May 2022 09:53:14 -0700
Message-Id: <20220502165316.4167199-4-bjorn.andersson@linaro.org>
In-Reply-To: <20220502165316.4167199-1-bjorn.andersson@linaro.org>
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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---

Changes since v3:
- New patch

 drivers/gpu/drm/drm_bridge_connector.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
index 0f6f3f653f65..6a0a6b14360a 100644
--- a/drivers/gpu/drm/drm_bridge_connector.c
+++ b/drivers/gpu/drm/drm_bridge_connector.c
@@ -123,6 +123,17 @@ static void drm_bridge_connector_hpd_cb(void *cb_data,
 	drm_kms_helper_hotplug_event(dev);
 }
 
+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);
+	struct drm_bridge *hpd = bridge_connector->bridge_hpd;
+
+	if (hpd)
+		drm_bridge_hpd_notify(hpd, status);
+}
+
 /**
  * drm_bridge_connector_enable_hpd - Enable hot-plug detection for the connector
  * @connector: The DRM bridge connector
@@ -233,6 +244,7 @@ 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,
 };
 
 /* -----------------------------------------------------------------------------
-- 
2.35.1