diff --git a/drivers/platform/x86/lenovo/thinkpad_acpi.c b/drivers/platform/x86/lenovo/thinkpad_acpi.c index d4ed6f1216f2..445e1403308e 100644 --- a/drivers/platform/x86/lenovo/thinkpad_acpi.c +++ b/drivers/platform/x86/lenovo/thinkpad_acpi.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include #include @@ -11216,6 +11217,26 @@ static ssize_t hwdd_status_show(struct device *dev, return sysfs_emit(buf, "0\n"); } + +/* sysfs type-c damage detection raw data - accessed via debugfs*/ +static int hwdd_raw_show(struct seq_file *m, void *v) +{ + unsigned int damage_status; + int err; + + if (!ucdd_supported) + return -ENODEV; + + /* Get USB TYPE-C damage status */ + err = hwdd_command(HWDD_GET_DMG_USBC, &damage_status); + if (err) + return err; + + seq_printf(m, "HWDD: 0x%x\n", damage_status); + return 0; +} +DEFINE_SHOW_ATTRIBUTE(hwdd_raw); + static DEVICE_ATTR_RO(hwdd_status); static DEVICE_ATTR_RO(hwdd_detail); @@ -11503,6 +11524,20 @@ static const char * __init str_supported(int is_supported) } #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ +static struct dentry *tpacpi_dbg; +static void tpacpi_debugfs_init(void) +{ + tpacpi_dbg = debugfs_create_dir("tpacpi", NULL); + + /* HWDD raw data */ + debugfs_create_file("hwdd-raw", 0444, tpacpi_dbg, NULL, &hwdd_raw_fops); +} + +static void tpacpi_debugfs_remove(void) +{ + debugfs_remove_recursive(tpacpi_dbg); +} + static void ibm_exit(struct ibm_struct *ibm) { dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); @@ -12067,6 +12102,8 @@ static void thinkpad_acpi_module_exit(void) remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); if (tpacpi_wq) destroy_workqueue(tpacpi_wq); + if (tpacpi_dbg) + tpacpi_debugfs_remove(); kfree(thinkpad_id.bios_version_str); kfree(thinkpad_id.ec_version_str); @@ -12197,6 +12234,8 @@ static int __init thinkpad_acpi_module_init(void) return -ENODEV; } + tpacpi_debugfs_init(); + dmi_id = dmi_first_match(fwbug_list); if (dmi_id) tp_features.quirks = dmi_id->driver_data;