| Message ID | 20221110132716.12294-2-chunfeng.yun@mediatek.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v4,1/3] phy: mediatek: fix build warning caused by clang for powerpc | expand |
On 10-11-22, 21:27, Chunfeng Yun wrote: > 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~v4: 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); Why expose this to whole world? Alternate approach would be to add this in struct phy > + > /** > * 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
On Thu, 2022-11-24 at 23:09 +0530, Vinod Koul wrote: > On 10-11-22, 21:27, Chunfeng Yun wrote: > > 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~v4: 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); > > Why expose this to whole world? Alternate approach would be to add > this > in struct phy If only add it in struct phy, many phy folders will be created under /sys/kernel/debug/, and create them under /sys/kernel/debug/phy seems more clearer, this also follows other class, such as usb > > > + > > /** > > * 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 > >
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);
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~v4: no changes --- drivers/phy/phy-core.c | 6 ++++++ include/linux/phy/phy.h | 2 ++ 2 files changed, 8 insertions(+)