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    Subject[PATCH v3 4/7] x86/intel_pmc_core: Make debugfs entry for pch_ip_power_gating_status conditional
    Date
    Check if the platform supports and only then add a debugfs entry for PCH
    IP power gating status.

    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
    Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    Cc: Kan Liang <kan.liang@intel.com>
    Cc: David E. Box <david.e.box@intel.com>
    Cc: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
    Cc: Tony Luck <tony.luck@intel.com>
    Reviewed-by: Tony Luck <tony.luck@intel.com>
    Signed-off-by: Gayatri Kammela <gayatri.kammela@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 a945a0081ebe..fa91f3127460 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
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