[PATCH v6 2/3] phy: core: add debugfs root

Chunfeng Yun
2023-01-04T14:16:46Z

Add a debugfs root for phy class, then phy drivers can add debugfs files
under this folder.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v2~v6: no changes
---
drivers/phy/phy-core.c | 6 ++++++
include/linux/phy/phy.h | 2 ++
2 files changed, 8 insertions(+)

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index d93ddf1262c5..2f9f69190519 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>
@@ -1204,6 +1205,9 @@ void devm_of_phy_provider_unregister(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_of_phy_provider_unregister);

+struct dentry *phy_debug_root;
+EXPORT_SYMBOL_GPL(phy_debug_root);
+
/**
* phy_release() - release the phy
* @dev: the dev member within phy
@@ -1233,6 +1237,8 @@ static int __init phy_core_init(void)

phy_class->dev_release = phy_release;

+ phy_debug_root = debugfs_create_dir("phy", NULL);
+
return 0;
}
device_initcall(phy_core_init);
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index b1413757fcc3..c398749d49b9 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -205,6 +205,8 @@ struct phy_lookup {
#define devm_of_phy_provider_register_full(dev, children, xlate) \
__devm_of_phy_provider_register(dev, children, THIS_MODULE, xlate)

+extern struct dentry *phy_debug_root;
+
static inline void phy_set_drvdata(struct phy *phy, void *data)
{
dev_set_drvdata(&phy->dev, data);
--
2.18.0