| Message ID | 1385403367-18144-2-git-send-email-matt.porter@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi, On Monday 25 November 2013 11:45 PM, Matt Porter wrote: > This adds a pair of APIs that allows the generic PHY subsystem to > provide information on the PHY bus width. The PHY provider driver may > use phy_set_bus_width() to set the bus width that the PHY supports. > The controller driver may then use phy_get_bus_width() to fetch the > PHY bus width in order to properly configure the controller. > > Signed-off-by: Matt Porter <matt.porter@linaro.org> > --- > include/linux/phy/phy.h | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h > index 6d72269..6ca6c61 100644 > --- a/include/linux/phy/phy.h > +++ b/include/linux/phy/phy.h > @@ -46,6 +46,7 @@ struct phy_ops { > * @mutex: mutex to protect phy_ops > * @init_count: used to protect when the PHY is used by multiple consumers > * @power_count: used to protect when the PHY is used by multiple consumers > + * @bus_width: used to specify data width of the PHY bus > */ > struct phy { > struct device dev; > @@ -55,6 +56,7 @@ struct phy { > struct mutex mutex; > int init_count; > int power_count; > + int bus_width; the bus_width can be part of the attrs struct which you initially proposed. Soon there will be requests for other attributes being added (e.g., speed). > }; > > /** > @@ -127,6 +129,14 @@ int phy_init(struct phy *phy); > int phy_exit(struct phy *phy); > int phy_power_on(struct phy *phy); > int phy_power_off(struct phy *phy); > +static inline int phy_get_bus_width(struct phy *phy) > +{ > + return phy->bus_width; > +} > +static inline void phy_set_bus_width(struct phy *phy, int bus_width) u32 bus_width? > +{ > + phy->bus_width = bus_width; > +} > struct phy *phy_get(struct device *dev, const char *string); > struct phy *devm_phy_get(struct device *dev, const char *string); > void phy_put(struct phy *phy); > @@ -199,6 +209,16 @@ static inline int phy_power_off(struct phy *phy) > return -ENOSYS; > } > > +static inline int phy_get_bus_width(struct phy *phy) > +{ > + return -ENOSYS; > +} > + > +static inline void phy_set_bus_width(struct phy *phy, bus_width) er.. has this been compile tested? Thanks Kishon
On Tue, Nov 26, 2013 at 03:46:26PM +0530, Kishon Vijay Abraham I wrote: > Hi, > > On Monday 25 November 2013 11:45 PM, Matt Porter wrote: > > This adds a pair of APIs that allows the generic PHY subsystem to > > provide information on the PHY bus width. The PHY provider driver may > > use phy_set_bus_width() to set the bus width that the PHY supports. > > The controller driver may then use phy_get_bus_width() to fetch the > > PHY bus width in order to properly configure the controller. > > > > Signed-off-by: Matt Porter <matt.porter@linaro.org> > > --- > > include/linux/phy/phy.h | 20 ++++++++++++++++++++ > > 1 file changed, 20 insertions(+) > > > > diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h > > index 6d72269..6ca6c61 100644 > > --- a/include/linux/phy/phy.h > > +++ b/include/linux/phy/phy.h > > @@ -46,6 +46,7 @@ struct phy_ops { > > * @mutex: mutex to protect phy_ops > > * @init_count: used to protect when the PHY is used by multiple consumers > > * @power_count: used to protect when the PHY is used by multiple consumers > > + * @bus_width: used to specify data width of the PHY bus > > */ > > struct phy { > > struct device dev; > > @@ -55,6 +56,7 @@ struct phy { > > struct mutex mutex; > > int init_count; > > int power_count; > > + int bus_width; > > the bus_width can be part of the attrs struct which you initially proposed. > Soon there will be requests for other attributes being added (e.g., speed). Agreed, I'll merge the accessors with the original attrs struct. > > }; > > > > /** > > @@ -127,6 +129,14 @@ int phy_init(struct phy *phy); > > int phy_exit(struct phy *phy); > > int phy_power_on(struct phy *phy); > > int phy_power_off(struct phy *phy); > > +static inline int phy_get_bus_width(struct phy *phy) > > +{ > > + return phy->bus_width; > > +} > > +static inline void phy_set_bus_width(struct phy *phy, int bus_width) > > u32 bus_width? will update > > +{ > > + phy->bus_width = bus_width; > > +} > > struct phy *phy_get(struct device *dev, const char *string); > > struct phy *devm_phy_get(struct device *dev, const char *string); > > void phy_put(struct phy *phy); > > @@ -199,6 +209,16 @@ static inline int phy_power_off(struct phy *phy) > > return -ENOSYS; > > } > > > > +static inline int phy_get_bus_width(struct phy *phy) > > +{ > > + return -ENOSYS; > > +} > > + > > +static inline void phy_set_bus_width(struct phy *phy, bus_width) > > er.. has this been compile tested? *sigh* obviously not, will address this. -Matt
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 6d72269..6ca6c61 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -46,6 +46,7 @@ struct phy_ops { * @mutex: mutex to protect phy_ops * @init_count: used to protect when the PHY is used by multiple consumers * @power_count: used to protect when the PHY is used by multiple consumers + * @bus_width: used to specify data width of the PHY bus */ struct phy { struct device dev; @@ -55,6 +56,7 @@ struct phy { struct mutex mutex; int init_count; int power_count; + int bus_width; }; /** @@ -127,6 +129,14 @@ int phy_init(struct phy *phy); int phy_exit(struct phy *phy); int phy_power_on(struct phy *phy); int phy_power_off(struct phy *phy); +static inline int phy_get_bus_width(struct phy *phy) +{ + return phy->bus_width; +} +static inline void phy_set_bus_width(struct phy *phy, int bus_width) +{ + phy->bus_width = bus_width; +} struct phy *phy_get(struct device *dev, const char *string); struct phy *devm_phy_get(struct device *dev, const char *string); void phy_put(struct phy *phy); @@ -199,6 +209,16 @@ static inline int phy_power_off(struct phy *phy) return -ENOSYS; } +static inline int phy_get_bus_width(struct phy *phy) +{ + return -ENOSYS; +} + +static inline void phy_set_bus_width(struct phy *phy, bus_width) +{ + return; +} + static inline struct phy *phy_get(struct device *dev, const char *string) { return ERR_PTR(-ENOSYS);
This adds a pair of APIs that allows the generic PHY subsystem to provide information on the PHY bus width. The PHY provider driver may use phy_set_bus_width() to set the bus width that the PHY supports. The controller driver may then use phy_get_bus_width() to fetch the PHY bus width in order to properly configure the controller. Signed-off-by: Matt Porter <matt.porter@linaro.org> --- include/linux/phy/phy.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)