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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 2023-04-03 at 20:36 +0530, Vinod Koul wrote: > External email : Please do not click links or open attachments until > you have verified the sender or the content. > > > On 16-03-23, 15:14, Chunfeng Yun wrote: > > 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 > > --- > > v9: create a 'phy' debugfs root, add a debugfs entry in struct phy > > suggested by Vinod; > > > > No v8 sent out; > > > > v2~v7: no changes > > --- > > drivers/phy/phy-core.c | 14 ++++++++++++++ > > include/linux/phy/phy.h | 2 ++ > > 2 files changed, 16 insertions(+) > > > > diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c > > index 9951efc03eaa..05715352881e 100644 > > --- a/drivers/phy/phy-core.c > > +++ b/drivers/phy/phy-core.c > > @@ -11,6 +11,7 @@ > > #include > > #include > > #include > > +#include > > #include > > #include > > #include > > @@ -20,6 +21,7 @@ > > #include > > > > 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); > > This should be moved to phy_release() we want the debugfs to be > cleaned > first phy_release() will remove its debugfs file, but phy_debugfs_root is the root of phy core, can't be removed in phy_release() > > > + class_destroy(phy_class); > > hmmm we are missing this already, that might be an issue! > > > +} > > +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; > > }; > > > > /** > > -- > > 2.18.0 > > -- > ~Vinod _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel