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Subject[PATCH v4 1/2] phy: Add new PHY attribute max_link_rate and APIs to get/set PHY attributes
Date
Add new PHY attribute max_link_rate to struct phy_attrs.
Add a pair of PHY APIs to get/set all the PHY attributes.
Use phy_get_attrs() to get attribute values and phy_set_attrs()
to set attribute values.

Signed-off-by: Yuti Amonkar <yamonkar@cadence.com>
Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
---
include/linux/phy/phy.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)

diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index bcee8eba62b3..5d8ebb056c1d 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -115,10 +115,12 @@ struct phy_ops {
/**
* struct phy_attrs - represents phy attributes
* @bus_width: Data path width implemented by PHY
+ * @max_link_rate: Maximum link rate supported by PHY (in Mbps)
* @mode: PHY mode
*/
struct phy_attrs {
u32 bus_width;
+ u32 max_link_rate;
enum phy_mode mode;
};

@@ -231,6 +233,20 @@ static inline void phy_set_bus_width(struct phy *phy, int bus_width)
{
phy->attrs.bus_width = bus_width;
}
+
+static inline void phy_get_attrs(struct phy *phy, struct phy_attrs *attrs)
+{
+ mutex_lock(&phy->mutex);
+ memcpy(attrs, &phy->attrs, sizeof(struct phy_attrs));
+ mutex_unlock(&phy->mutex);
+}
+
+static inline void phy_set_attrs(struct phy *phy, struct phy_attrs attrs)
+{
+ mutex_lock(&phy->mutex);
+ memcpy(&phy->attrs, &attrs, sizeof(struct phy_attrs));
+ mutex_unlock(&phy->mutex);
+}
struct phy *phy_get(struct device *dev, const char *string);
struct phy *phy_optional_get(struct device *dev, const char *string);
struct phy *devm_phy_get(struct device *dev, const char *string);
@@ -389,6 +405,16 @@ static inline void phy_set_bus_width(struct phy *phy, int bus_width)
return;
}

+static inline void phy_get_attrs(struct phy *phy, struct phy_attrs *attrs)
+{
+ return;
+}
+
+static inline void phy_set_attrs(struct phy *phy, struct phy_attrs attrs)
+{
+ return;
+}
+
static inline struct phy *phy_get(struct device *dev, const char *string)
{
return ERR_PTR(-ENOSYS);
--
2.26.1
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