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| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2023-05-13 17:22:17 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-05-19 23:23:52 +0530 |
| commit | 91694772067203a554354a08bfad294b81fff5ad (patch) | |
| tree | 7d93c3a9ec84d2ae44af69a2d58919aac4bfd182 | |
| parent | 63c85ad0cd811ed43653a5e17b7c4172ad1bb023 (diff) | |
| download | linux-91694772067203a554354a08bfad294b81fff5ad.tar.gz linux-91694772067203a554354a08bfad294b81fff5ad.tar.bz2 linux-91694772067203a554354a08bfad294b81fff5ad.zip | |
phy: core: add debugfs files
Add a debugfs root for phy class, and create a debugfs directory under
the root when create phy, then phy drivers can add debugfs files.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20230513092218.21139-1-chunfeng.yun@mediatek.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | drivers/phy/phy-core.c | 14 | ||||
| -rw-r--r-- | include/linux/phy/phy.h | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 6464dcb56d56..96a0b1e111f3 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -11,6 +11,7 @@ #include <linux/export.h> #include <linux/module.h> #include <linux/err.h> +#include <linux/debugfs.h> #include <linux/device.h> #include <linux/slab.h> #include <linux/of.h> @@ -20,6 +21,7 @@ #include <linux/regulator/consumer.h> static struct class *phy_class; +static struct dentry *phy_debugfs_root; static DEFINE_MUTEX(phy_provider_mutex); static LIST_HEAD(phy_provider_list); static LIST_HEAD(phys); @@ -996,6 +998,8 @@ struct phy *phy_create(struct device *dev, struct device_node *node, pm_runtime_no_callbacks(&phy->dev); } + phy->debugfs = debugfs_create_dir(dev_name(&phy->dev), phy_debugfs_root); + return phy; put_dev: @@ -1226,6 +1230,7 @@ static void phy_release(struct device *dev) phy = to_phy(dev); dev_vdbg(dev, "releasing '%s'\n", dev_name(dev)); + debugfs_remove_recursive(phy->debugfs); regulator_put(phy->pwr); ida_simple_remove(&phy_ida, phy->id); kfree(phy); @@ -1242,6 +1247,15 @@ static int __init phy_core_init(void) phy_class->dev_release = phy_release; + phy_debugfs_root = debugfs_create_dir("phy", NULL); + return 0; } device_initcall(phy_core_init); + +static void __exit phy_core_exit(void) +{ + debugfs_remove_recursive(phy_debugfs_root); + class_destroy(phy_class); +} +module_exit(phy_core_exit); diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 3a570bc59fc7..f6d607ef0e80 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -148,6 +148,7 @@ struct phy_attrs { * @power_count: used to protect when the PHY is used by multiple consumers * @attrs: used to specify PHY specific attributes * @pwr: power regulator associated with the phy + * @debugfs: debugfs directory */ struct phy { struct device dev; @@ -158,6 +159,7 @@ struct phy { int power_count; struct phy_attrs attrs; struct regulator *pwr; + struct dentry *debugfs; }; /** |