shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 02:50:49 +09:00
Code Issues Packages Projects Releases Wiki Activity

drm/rockchip: dw-dp: add a debugfs directory

Browse Source 
The DPTX may be not create a drm connector, or it will create
more than 1 drm connector when work in MST mode. So it's better
to create a debugfs directory for the DPTX driver. A drm
encoder is necessary for DPTX driver and the drm connector is
optional, So the debug node add when drm encoder late register
state.

Change-Id: I7515872aebc0101611a9afa393765a8bd478699d
Signed-off-by: Zhang Yubing <yubing.zhang@rock-chips.com>
This commit is contained in:
Zhang Yubing
2025-09-04 10:53:46 +08:00
committed by 张玉炳
parent 3b68d42dda
commit baa928edb1
1 changed files with 31 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
drivers/gpu/drm/rockchip/dw-dp.c
View File

@@ -509,6 +509,7 @@ struct dw_dp {
struct list_head mst_conn_list;
struct rockchip_dp_aux_client *aux_client;
struct dentry *debugfs_dir;
struct drm_info_list *debugfs_files;
struct typec_mux_dev *mux;
};
@@ -1346,7 +1347,6 @@ static int dw_dp_atomic_connector_set_property(struct drm_connector *connector,
return -EINVAL;
}
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_NO_GKI)
static int dw_dp_mst_info_dump(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
@@ -1389,12 +1389,22 @@ static struct drm_info_list dw_dp_debugfs_files[] = {
{ "dp_mst_info", dw_dp_mst_info_dump, 0, NULL },
};
static int dw_dp_connector_late_register(struct drm_connector *connector)
static int dw_dp_debugfs_init(struct dw_dp *dp)
{
struct dw_dp *dp = connector_to_dp(connector);
struct drm_minor *minor = connector->dev->primary;
struct drm_minor *minor = dp->encoder.dev->primary;
u8 buf[11];
int i;
if (!IS_ENABLED(CONFIG_DEBUG_FS))
return 0;
snprintf(buf, sizeof(buf), "dw-dp%d", dp->id);
dp->debugfs_dir = debugfs_create_dir(buf, minor->debugfs_root);
if (IS_ERR(dp->debugfs_dir)) {
dev_err(dp->dev, "failed to create debugfs dir!\n");
return PTR_ERR(dp->debugfs_dir);
}
dp->debugfs_files = kmemdup(dw_dp_debugfs_files, sizeof(dw_dp_debugfs_files), GFP_KERNEL);
if (!dp->debugfs_files)
return -ENOMEM;
@@ -1403,21 +1413,11 @@ static int dw_dp_connector_late_register(struct drm_connector *connector)
dp->debugfs_files[i].data = dp;
drm_debugfs_create_files(dp->debugfs_files, ARRAY_SIZE(dw_dp_debugfs_files),
connector->debugfs_entry, minor);
dp->debugfs_dir, minor);
return 0;
}
static void dw_dp_connector_early_unregister(struct drm_connector *connector)
{
struct dw_dp *dp = connector_to_dp(connector);
struct drm_minor *minor = connector->dev->primary;
drm_debugfs_remove_files(dp->debugfs_files, ARRAY_SIZE(dw_dp_debugfs_files), minor);
kfree(dp->debugfs_files);
}
#endif
static const struct drm_connector_funcs dw_dp_connector_funcs = {
.detect = dw_dp_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
@@ -1428,10 +1428,6 @@ static const struct drm_connector_funcs dw_dp_connector_funcs = {
.atomic_destroy_state = dw_dp_atomic_connector_destroy_state,
.atomic_get_property = dw_dp_atomic_connector_get_property,
.atomic_set_property = dw_dp_atomic_connector_set_property,
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_NO_GKI)
.late_register = dw_dp_connector_late_register,
.early_unregister = dw_dp_connector_early_unregister,
#endif
};
static int dw_dp_update_hdr_property(struct drm_connector *connector)
@@ -5551,12 +5547,28 @@ static int dw_dp_encoder_late_register(struct drm_encoder *encoder)
if (ret)
dev_warn(dp->dev, "audio init failed\n");
ret = dw_dp_debugfs_init(dp);
if (ret)
return ret;
return 0;
}
static void dw_dp_encoder_early_unregister(struct drm_encoder *encoder)
{
struct dw_dp *dp = encoder_to_dp(encoder);
if (!IS_ENABLED(CONFIG_DEBUG_FS))
return;
debugfs_remove_recursive(dp->debugfs_dir);
kfree(dp->debugfs_files);
}
static const struct drm_encoder_funcs dw_dp_encoder_funcs = {
.destroy = drm_encoder_cleanup,
.late_register = dw_dp_encoder_late_register,
.early_unregister = dw_dp_encoder_early_unregister,
};
static void dw_dp_mst_poll_hpd_irq(void *data)