samsung-sm8650/android_kernel_samsung_sm8650-modules
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msm: camera: common: create a common root folder for debugfs

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Create common root folder under debugfs root named camera at probe. Add
utility functions to create subdirectories under the common camera root.

CRs-Fixed: 3093049
Change-Id: Ia4cefb5d2263ecabf1b9d70deefa1ee624b04f07
Signed-off-by: Anand Ravi <quic_ananravi@quicinc.com>
This commit is contained in:
Anand Ravi
2021-12-13 14:49:13 -08:00
parent d123d73bc2
commit cbe499e9eb
20 changed files with 288 additions and 205 deletions
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46
drivers/cam_sensor_module/cam_cci/cam_cci_dev.c
View File

@@ -405,44 +405,31 @@ DEFINE_DEBUGFS_ATTRIBUTE(cam_cci_debug,
static int cam_cci_create_debugfs_entry(struct cci_device *cci_dev)
{
int rc = 0;
int rc = 0, idx;
struct dentry *dbgfileptr = NULL;
static char * const filename[] = { "en_dump_cci0", "en_dump_cci1", "en_dump_cci2"};
if (!cam_debugfs_available())
return 0;
if (!debugfs_root) {
dbgfileptr = debugfs_create_dir("cam_cci", NULL);
if (!dbgfileptr) {
rc = cam_debugfs_create_subdir("cci", &dbgfileptr);
if (rc) {
CAM_ERR(CAM_CCI, "debugfs directory creation fail");
rc = -ENOENT;
goto end;
return rc;
}
debugfs_root = dbgfileptr;
}
if (cci_dev->soc_info.index == 0) {
dbgfileptr = debugfs_create_file("en_dump_cci0", 0644,
debugfs_root, cci_dev, &cam_cci_debug);
if (IS_ERR(dbgfileptr)) {
if (PTR_ERR(dbgfileptr) == -ENODEV)
CAM_WARN(CAM_CCI, "DebugFS not enabled");
else {
rc = PTR_ERR(dbgfileptr);
goto end;
}
}
} else {
dbgfileptr = debugfs_create_file("en_dump_cci1", 0644,
debugfs_root, cci_dev, &cam_cci_debug);
if (IS_ERR(dbgfileptr)) {
if (PTR_ERR(dbgfileptr) == -ENODEV)
CAM_WARN(CAM_CCI, "DebugFS not enabled");
else {
rc = PTR_ERR(dbgfileptr);
goto end;
}
}
idx = cci_dev->soc_info.index;
if (idx >= ARRAY_SIZE(filename)) {
CAM_ERR(CAM_CCI, "cci-dev %d invalid", idx);
return -ENODEV;
}
end:
return rc;
debugfs_create_file(filename[idx], 0644, debugfs_root, cci_dev, &cam_cci_debug);
return 0;
}
static int cam_cci_component_bind(struct device *dev,
@@ -547,7 +534,6 @@ static void cam_cci_component_unbind(struct device *dev,
v4l2_get_subdevdata(subdev);
cam_cpas_unregister_client(cci_dev->cpas_handle);
debugfs_remove_recursive(debugfs_root);
debugfs_root = NULL;
cam_cci_soc_remove(pdev, cci_dev);
rc = cam_unregister_subdev(&(cci_dev->v4l2_dev_str));

12
drivers/cam_sensor_module/cam_csiphy/cam_csiphy_dev.c
View File

@@ -55,13 +55,16 @@ static int cam_csiphy_debug_register(struct csiphy_device *csiphy_dev)
return -EINVAL;
}
if (!cam_debugfs_available())
return 0;
if (!root_dentry) {
root_dentry = debugfs_create_dir("camera_csiphy", NULL);
if (IS_ERR(root_dentry)) {
CAM_ERR(CAM_CSIPHY, "Debugfs could not create root directory. rc: %ld",
root_dentry);
if (cam_debugfs_create_subdir("csiphy", &dbgfileptr)) {
CAM_ERR(CAM_CSIPHY,
"Debugfs could not create directory!");
return -ENOENT;
}
root_dentry = dbgfileptr;
}
/* Create the CSIPHY directory for this csiphy */
@@ -88,7 +91,6 @@ static int cam_csiphy_debug_register(struct csiphy_device *csiphy_dev)
static void cam_csiphy_debug_unregister(void)
{
debugfs_remove_recursive(root_dentry);
root_dentry = NULL;
}