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platform/x86/intel/tpmi: Add API to get debugfs root

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Add new API to get the debugfs root directory for TPMI. This allows any
TPMI devices to add their own debugfs items under the same directory
structure.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Link: https://lore.kernel.org/r/20240527133400.483634-3-tero.kristo@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Tero Kristo 2024-05-27 16:29:34 +03:00 committed by Ilpo Järvinen
parent b44d79d6ba
commit d36842bacf
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GPG Key ID: 59AC4F6153E5CE31
2 changed files with 10 additions and 0 deletions
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9
drivers/platform/x86/intel/tpmi.c
View File

@ -357,6 +357,15 @@ int tpmi_get_feature_status(struct auxiliary_device *auxdev,
}
EXPORT_SYMBOL_NS_GPL(tpmi_get_feature_status, INTEL_TPMI);
struct dentry *tpmi_get_debugfs_dir(struct auxiliary_device *auxdev)
{
struct intel_vsec_device *intel_vsec_dev = dev_to_ivdev(auxdev->dev.parent);
struct intel_tpmi_info *tpmi_info = auxiliary_get_drvdata(&intel_vsec_dev->auxdev);
return tpmi_info->dbgfs_dir;
}
EXPORT_SYMBOL_NS_GPL(tpmi_get_debugfs_dir, INTEL_TPMI);
static int tpmi_pfs_dbg_show(struct seq_file *s, void *unused)
{
struct intel_tpmi_info *tpmi_info = s->private;

1
include/linux/intel_tpmi.h
View File

@ -54,4 +54,5 @@ struct resource *tpmi_get_resource_at_index(struct auxiliary_device *auxdev, int
int tpmi_get_resource_count(struct auxiliary_device *auxdev);
int tpmi_get_feature_status(struct auxiliary_device *auxdev, int feature_id, bool *read_blocked,
bool *write_blocked);
struct dentry *tpmi_get_debugfs_dir(struct auxiliary_device *auxdev);
#endif