linux-kernel - [PATCH 13/16] drm/vkms: Allow to update the connector status

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Message-ID: <20250218170808.9507-14-jose.exposito89@gmail.com>
Date: Tue, 18 Feb 2025 18:08:05 +0100
From: José Expósito <jose.exposito89@...il.com>
To: louis.chauvet@...tlin.com
Cc: hamohammed.sa@...il.com,
	simona@...ll.ch,
	melissa.srw@...il.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	José Expósito <jose.exposito89@...il.com>
Subject: [PATCH 13/16] drm/vkms: Allow to update the connector status

Implement the drm_connector_funcs.detect() callback to update the
connector status by returning the status stored in the configuration.

Signed-off-by: José Expósito <jose.exposito89@...il.com>
---
 drivers/gpu/drm/vkms/vkms_connector.c | 19 ++++++++++++++++++-
 drivers/gpu/drm/vkms/vkms_connector.h | 12 +++++++++++-
 drivers/gpu/drm/vkms/vkms_output.c    |  2 +-
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_connector.c b/drivers/gpu/drm/vkms/vkms_connector.c
index 48b10cba322a..b03a00b5803a 100644
--- a/drivers/gpu/drm/vkms/vkms_connector.c
+++ b/drivers/gpu/drm/vkms/vkms_connector.c
@@ -5,9 +5,23 @@
 #include <drm/drm_managed.h>
 #include <drm/drm_probe_helper.h>
 
+#include "vkms_config.h"
 #include "vkms_connector.h"
 
+static enum drm_connector_status vkms_connector_detect(struct drm_connector *connector,
+						       bool force)
+{
+	struct vkms_connector *vkms_connector;
+	enum drm_connector_status status;
+
+	vkms_connector = drm_connector_to_vkms_connector(connector);
+	status = vkms_config_connector_get_status(vkms_connector->connector_cfg);
+
+	return status;
+}
+
 static const struct drm_connector_funcs vkms_connector_funcs = {
+	.detect = vkms_connector_detect,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.reset = drm_atomic_helper_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
@@ -40,7 +54,8 @@ static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = {
 	.best_encoder = vkms_conn_best_encoder,
 };
 
-struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev)
+struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev,
+					   struct vkms_config_connector *connector_cfg)
 {
 	struct drm_device *dev = &vkmsdev->drm;
 	struct vkms_connector *connector;
@@ -50,6 +65,8 @@ struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev)
 	if (!connector)
 		return ERR_PTR(-ENOMEM);
 
+	connector->connector_cfg = connector_cfg;
+
 	ret = drmm_connector_init(dev, &connector->base, &vkms_connector_funcs,
 				  DRM_MODE_CONNECTOR_VIRTUAL, NULL);
 	if (ret)
diff --git a/drivers/gpu/drm/vkms/vkms_connector.h b/drivers/gpu/drm/vkms/vkms_connector.h
index c9149c1b7af0..5ab8a6d65182 100644
--- a/drivers/gpu/drm/vkms/vkms_connector.h
+++ b/drivers/gpu/drm/vkms/vkms_connector.h
@@ -5,22 +5,32 @@
 
 #include "vkms_drv.h"
 
+struct vkms_config_connector;
+
+#define drm_connector_to_vkms_connector(target) \
+	container_of(target, struct vkms_connector, base)
+
 /**
  * struct vkms_connector - VKMS custom type wrapping around the DRM connector
  *
  * @drm: Base DRM connector
+ * @connector_cfg: Connector configuration
  */
 struct vkms_connector {
 	struct drm_connector base;
+
+	struct vkms_config_connector *connector_cfg;
 };
 
 /**
  * vkms_connector_init() - Initialize a connector
  * @vkmsdev: VKMS device containing the connector
+ * @connector_cfg: Configuration for the connector
  *
  * Returns:
  * The connector or an error on failure.
  */
-struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev);
+struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev,
+					   struct vkms_config_connector *connector_cfg);
 
 #endif /* _VKMS_CONNECTOR_H_ */
diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c
index 8d7ca0cdd79f..3af95983026e 100644
--- a/drivers/gpu/drm/vkms/vkms_output.c
+++ b/drivers/gpu/drm/vkms/vkms_output.c
@@ -87,7 +87,7 @@ int vkms_output_init(struct vkms_device *vkmsdev)
 		struct vkms_config_encoder *possible_encoder;
 		unsigned long idx = 0;
 
-		connector_cfg->connector = vkms_connector_init(vkmsdev);
+		connector_cfg->connector = vkms_connector_init(vkmsdev, connector_cfg);
 		if (IS_ERR(connector_cfg->connector)) {
 			DRM_ERROR("Failed to init connector\n");
 			return PTR_ERR(connector_cfg->connector);
-- 
2.48.1