From: Rajneesh Bhardwaj <rajneesh.bhard...@intel.com> commit 750e0f570b7145870d40f07337f3356c18e0abd4 upstream.
When on a platform if we can't show MPHY and PLL status, don't even bother to create a debugfs entry as it will fail anyway. In fact unless OEM builds a special BIOS for test, it will fail on every production system. This will help to add future platform support where we can't support these entries. Suggested-by: Andy Shevchenko <andriy.shevche...@linux.intel.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruv...@linux.intel.com> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhard...@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com> Signed-off-by: Liwei Song <liwei.s...@windriver.com> --- drivers/platform/x86/intel_pmc_core.c | 38 +++++++++++++---------------------- 1 file changed, 14 insertions(+), 24 deletions(-) diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c index cf8b3b34a979..da924d3bb3e5 100644 --- a/drivers/platform/x86/intel_pmc_core.c +++ b/drivers/platform/x86/intel_pmc_core.c @@ -407,43 +407,33 @@ static void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev) static int pmc_core_dbgfs_register(struct pmc_dev *pmcdev) { - struct dentry *dir, *file; + struct dentry *dir; dir = debugfs_create_dir("pmc_core", NULL); if (!dir) return -ENOMEM; pmcdev->dbgfs_dir = dir; - file = debugfs_create_file("slp_s0_residency_usec", 0444, - dir, pmcdev, &pmc_core_dev_state); - if (!file) - goto err; - file = debugfs_create_file("pch_ip_power_gating_status", 0444, - dir, pmcdev, &pmc_core_ppfear_ops); - if (!file) - goto err; + debugfs_create_file("slp_s0_residency_usec", 0444, dir, pmcdev, + &pmc_core_dev_state); - file = debugfs_create_file("mphy_core_lanes_power_gating_status", 0444, - dir, pmcdev, &pmc_core_mphy_pg_ops); - if (!file) - goto err; + debugfs_create_file("pch_ip_power_gating_status", 0444, dir, pmcdev, + &pmc_core_ppfear_ops); - file = debugfs_create_file("pll_status", 0444, dir, pmcdev, - &pmc_core_pll_ops); - if (!file) - goto err; + debugfs_create_file("ltr_ignore", 0644, dir, pmcdev, + &pmc_core_ltr_ignore_ops); - file = debugfs_create_file("ltr_ignore", 0644, dir, pmcdev, - &pmc_core_ltr_ignore_ops); + if (pmcdev->map->pll_sts) + debugfs_create_file("pll_status", 0444, dir, pmcdev, + &pmc_core_pll_ops); - if (!file) - goto err; + if (pmcdev->map->mphy_sts) + debugfs_create_file("mphy_core_lanes_power_gating_status", + 0444, dir, pmcdev, + &pmc_core_mphy_pg_ops); return 0; -err: - pmc_core_dbgfs_unregister(pmcdev); - return -ENODEV; } #else static inline int pmc_core_dbgfs_register(struct pmc_dev *pmcdev) -- 2.7.4 -- _______________________________________________ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto