Commit 91694772 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Vinod Koul
Browse files

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: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20230513092218.21139-1-chunfeng.yun@mediatek.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 63c85ad0

drivers/phy/phy-core.c

+14 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/phy/phy.h

+2 −0
Original line number Diff line number Diff line
@@ -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;

};



/**