Check if the platform supports and only then add a debugfs entry for PCH
IP power gating status.
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Srinivas Pandruvada <srinivas.pandruv...@intel.com>
Cc: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Cc: Kan Liang <kan.li...@intel.com>
Cc: David E. Box <david.e....@intel.com>
Cc: Rajneesh Bhardwaj <rajneesh.bhard...@intel.com>
Cc: Tony Luck <tony.l...@intel.com>
Reviewed-by: Tony Luck <tony.l...@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kamm...@intel.com>
---
drivers/platform/x86/intel_pmc_core.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/intel_pmc_core.c
b/drivers/platform/x86/intel_pmc_core.c
index c6a0c29d3476..ea43a5989c96 100644
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -788,8 +788,9 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
debugfs_create_file("slp_s0_residency_usec", 0444, dir, pmcdev,
&pmc_core_dev_state);
- debugfs_create_file("pch_ip_power_gating_status", 0444, dir, pmcdev,
- &pmc_core_ppfear_fops);
+ if (pmcdev->map->pfear_sts)
+ debugfs_create_file("pch_ip_power_gating_status", 0444, dir,
+ pmcdev, &pmc_core_ppfear_fops);
debugfs_create_file("ltr_ignore", 0644, dir, pmcdev,
&pmc_core_ltr_ignore_ops);
--
2.17.1
