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Subject[net-next PATCH RFC v3 3/8] net: phy: add support for shared priv data size for PHY package in DT
Date
Add support for defining shared data size for PHY package defined in DT.

A PHY driver has to define the value .phy_package_priv_data_size to make
the generic OF PHY package function alloc priv data in the shared struct
for the PHY package.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
drivers/net/phy/phy_device.c | 7 ++++++-
include/linux/phy.h | 3 +++
2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index f416f7434697..87f06b4ecbfe 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -3178,6 +3178,7 @@ static int of_phy_package(struct phy_device *phydev)
{
struct device_node *node = phydev->mdio.dev.of_node;
struct device_node *package_node;
+ int shared_priv_data_size;
u32 base_addr;
int ret;

@@ -3194,8 +3195,12 @@ static int of_phy_package(struct phy_device *phydev)
if (of_property_read_u32(package_node, "reg", &base_addr))
return -EINVAL;

+ shared_priv_data_size = 0;
+ if (phydev->drv->phy_package_priv_data_size)
+ shared_priv_data_size = phydev->drv->phy_package_priv_data_size;
+
ret = devm_phy_package_join(&phydev->mdio.dev, phydev,
- base_addr, 0);
+ base_addr, shared_priv_data_size);
if (ret)
return ret;

diff --git a/include/linux/phy.h b/include/linux/phy.h
index 80a4adaeb817..c4e6d0b3a86c 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -884,6 +884,8 @@ struct phy_led {
* @flags: A bitfield defining certain other features this PHY
* supports (like interrupts)
* @driver_data: Static driver data
+ * @phy_package_priv_data_size: Size of the priv data to alloc
+ * for shared struct of PHY package.
*
* All functions are optional. If config_aneg or read_status
* are not implemented, the phy core uses the genphy versions.
@@ -901,6 +903,7 @@ struct phy_driver {
const unsigned long * const features;
u32 flags;
const void *driver_data;
+ unsigned int phy_package_priv_data_size;

/**
* @soft_reset: Called to issue a PHY software reset
--
2.40.1
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