Add fixed_phy_register_with_gpiod() API. It lets users create a
fixed_phy instance that uses a GPIO descriptor which was obtained
externally e.g. through platform data.
This enables platform devices (non-DT based) to use GPIOs for link
status.
Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
Signed-off-by: Moritz Fischer <m...@kernel.org>
---
Changes from v1:
- Added Florian's Reviewed-by: tag
Changes from RFC:
- Implemented Andrew's/Florians suggestion to add new API
instead of changing old API
---
drivers/net/phy/fixed_phy.c | 32 +++++++++++++++++++++++++-------
include/linux/phy_fixed.h | 15 +++++++++++++++
2 files changed, 40 insertions(+), 7 deletions(-)
diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c
index d810f914aaa4..b0d1368c3400 100644
--- a/drivers/net/phy/fixed_phy.c
+++ b/drivers/net/phy/fixed_phy.c
@@ -229,12 +229,12 @@ static struct gpio_desc *fixed_phy_get_gpiod(struct
device_node *np)
}
#endif
-struct phy_device *fixed_phy_register(unsigned int irq,
- struct fixed_phy_status *status,
- struct device_node *np)
+static struct phy_device *__fixed_phy_register(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct device_node *np,
+ struct gpio_desc *gpiod)
{
struct fixed_mdio_bus *fmb = &platform_fmb;
- struct gpio_desc *gpiod = NULL;
struct phy_device *phy;
int phy_addr;
int ret;
@@ -243,9 +243,11 @@ struct phy_device *fixed_phy_register(unsigned int irq,
return ERR_PTR(-EPROBE_DEFER);
/* Check if we have a GPIO associated with this fixed phy */
- gpiod = fixed_phy_get_gpiod(np);
- if (IS_ERR(gpiod))
- return ERR_CAST(gpiod);
+ if (!gpiod) {
+ gpiod = fixed_phy_get_gpiod(np);
+ if (IS_ERR(gpiod))
+ return ERR_CAST(gpiod);
+ }
/* Get the next available PHY address, up to PHY_MAX_ADDR */
phy_addr = ida_simple_get(&phy_fixed_ida, 0, PHY_MAX_ADDR, GFP_KERNEL);
@@ -308,8 +310,24 @@ struct phy_device *fixed_phy_register(unsigned int irq,
return phy;
}
+
+struct phy_device *fixed_phy_register(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct device_node *np)
+{
+ return __fixed_phy_register(irq, status, np, NULL);
+}
EXPORT_SYMBOL_GPL(fixed_phy_register);
+struct phy_device *
+fixed_phy_register_with_gpiod(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct gpio_desc *gpiod)
+{
+ return __fixed_phy_register(irq, status, NULL, gpiod);
+}
+EXPORT_SYMBOL_GPL(fixed_phy_register_with_gpiod);
+
void fixed_phy_unregister(struct phy_device *phy)
{
phy_device_remove(phy);
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index c78fc203db43..1e5d86ebdaeb 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -19,6 +19,12 @@ extern int fixed_phy_add(unsigned int irq, int phy_id,
extern struct phy_device *fixed_phy_register(unsigned int irq,
struct fixed_phy_status *status,
struct device_node *np);
+
+extern struct phy_device *
+fixed_phy_register_with_gpiod(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct gpio_desc *gpiod);
+
extern void fixed_phy_unregister(struct phy_device *phydev);
extern int fixed_phy_set_link_update(struct phy_device *phydev,
int (*link_update)(struct net_device *,
@@ -35,6 +41,15 @@ static inline struct phy_device *fixed_phy_register(unsigned
int irq,
{
return ERR_PTR(-ENODEV);
}
+
+static inline struct phy_device *
+fixed_phy_register_with_gpiod(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct gpio_desc *gpiod)
+{
+ return ERR_PTR(-ENODEV);
+}
+
static inline void fixed_phy_unregister(struct phy_device *phydev)
{
}
--
2.20.1
