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drm/rockchip: vconn: add support for DRM_MODE_CONNECTOR_VIRTUAL

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Support for multiple virtual connectors. The dts maybe
like:

vconn {
	compatible = "rockchip,virtual-connector";
	virtual-connector-count = <2>;
	/*
	 * virtual0 connected by default
	 * virtual1 disconnected
	 */
	virtual1-disconnected;
	status = "okay";
};

Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Change-Id: I0871031fdeb124c2b7a6d77f5bf1aa111c3e093e
This commit is contained in:
Damon Ding
2023-02-08 16:28:49 +08:00
committed by Tao Huang
parent 8cb1b2ad50
commit df5b684fe9
1 changed files with 51 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
drivers/gpu/drm/rockchip/rockchip_drm_vconn.c
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@@ -24,6 +24,7 @@ struct vconn_device {
int bus_format;
int if_id;
int vp_id_mask;
bool connected;
};
struct rockchip_vconn {
@@ -235,7 +236,7 @@ static const struct drm_display_mode edid_cea_modes_1[] = {
.picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
};
int vconn_drm_add_modes_noedid(struct drm_connector *connector)
static int vconn_drm_add_modes_noedid(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_display_mode *mode;
@@ -307,6 +308,18 @@ static const struct drm_encoder_helper_funcs rockchip_virtual_encoder_helper_fun
.mode_set = rockchip_virtual_encoder_mode_set,
};
static enum drm_connector_status
rockchip_virtual_connector_detect(struct drm_connector *connector, bool force)
{
struct vconn_device *vconn_dev = to_vconn_device(connector);
if (vconn_dev->output_type == DRM_MODE_CONNECTOR_VIRTUAL)
return vconn_dev->connected ? connector_status_connected :
connector_status_disconnected;
return connector_status_connected;
}
static void rockchip_virtual_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
@@ -314,6 +327,7 @@ static void rockchip_virtual_connector_destroy(struct drm_connector *connector)
}
static const struct drm_connector_funcs rockchip_virtual_connector_funcs = {
.detect = rockchip_virtual_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = rockchip_virtual_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
@@ -401,6 +415,8 @@ static int rockchip_vconn_get_encoder_type(int conn_type)
return DRM_MODE_ENCODER_DSI;
else if (conn_type == DRM_MODE_CONNECTOR_DPI)
return DRM_MODE_ENCODER_DPI;
else if (conn_type == DRM_MODE_CONNECTOR_VIRTUAL)
return DRM_MODE_ENCODER_VIRTUAL;
else
return DRM_MODE_ENCODER_TMDS;
}
@@ -433,6 +449,38 @@ static int rockchip_vconn_device_create(struct rockchip_vconn *vconn,
return 0;
}
static int rockchip_virtual_connectors_create(struct rockchip_vconn *vconn)
{
struct device_node *np = vconn->dev->of_node;
struct vconn_device *vconn_dev;
char propname[64];
u32 count;
int i;
int ret;
ret = of_property_read_u32(np, "virtual-connector-count", &count);
if (ret)
return ret;
for (i = 0; i < count; i++) {
vconn_dev = devm_kzalloc(vconn->dev, sizeof(*vconn_dev), GFP_KERNEL);
if (!vconn_dev)
return -ENOMEM;
snprintf(propname, sizeof(propname), "virtual%d-disconnected", i);
vconn_dev->connected = !of_property_read_bool(np, propname);
vconn_dev->vconn = vconn;
vconn_dev->encoder_type = DRM_MODE_ENCODER_VIRTUAL;
vconn_dev->output_type = DRM_MODE_CONNECTOR_VIRTUAL;
vconn_dev->output_mode = ROCKCHIP_OUT_MODE_AAAA;
vconn_dev->bus_format = MEDIA_BUS_FMT_FIXED;
vconn_dev->if_id = 0;
vconn_dev->vp_id_mask = 0;
list_add_tail(&vconn_dev->list, &vconn->list_head);
}
return 0;
}
static int rockchip_virtual_connector_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
@@ -486,6 +534,8 @@ static int rockchip_virtual_connector_bind(struct device *dev, struct device *ma
ROCKCHIP_OUT_MODE_P888, MEDIA_BUS_FMT_RGB888_1X24,
VOP_OUTPUT_IF_RGB);
rockchip_virtual_connectors_create(vconn);
platform_set_drvdata(pdev, vconn);
rockchip_virtual_connector_register(vconn);