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[RFC,net-next,13/16] net: phy: Export get_phy_c22_id

Message ID 20211004191527.1610759-14-sean.anderson@seco.com (mailing list archive)
State RFC
Delegated to: Netdev Maintainers
Headers show
Series Add support for Xilinx PCS | expand

Commit Message

Sean Anderson Oct. 4, 2021, 7:15 p.m. UTC 
This function is useful when probing MDIO devices which present a
phy-like interface despite not using the Linux ethernet phy subsystem.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
---

 drivers/net/phy/phy_device.c | 3 ++-
 include/linux/phy.h          | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

Comments

Russell King (Oracle) Oct. 5, 2021, 10:12 a.m. UTC | #1 
On Mon, Oct 04, 2021 at 03:15:24PM -0400, Sean Anderson wrote:
> This function is useful when probing MDIO devices which present a
> phy-like interface despite not using the Linux ethernet phy subsystem.

Maybe we should consider moving this into mdio_device.c and renaming
it if it's going to become more generic? Maybe mdio_read_c22_id()?
Andrew, Heiner, any opinions?
diff mbox series

Patch

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index ba5ad86ec826..c75b189f1a3e 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -805,7 +805,7 @@  static int get_phy_c45_ids(struct mii_bus *bus, int addr,
  * valid, %-EIO on bus access error, or %-ENODEV if no device responds
  * or invalid ID.
  */
-static int get_phy_c22_id(struct mii_bus *bus, int addr, u32 *phy_id)
+int get_phy_c22_id(struct mii_bus *bus, int addr, u32 *phy_id)
 {
 	int phy_reg;
 
@@ -833,6 +833,7 @@  static int get_phy_c22_id(struct mii_bus *bus, int addr, u32 *phy_id)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(get_phy_c22_id);
 
 /* Extract the phy ID from the compatible string of the form
  * ethernet-phy-idAAAA.BBBB.
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 736e1d1a47c4..206049c0f587 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1381,6 +1381,7 @@  struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
 				     bool is_c45,
 				     struct phy_c45_device_ids *c45_ids);
 #if IS_ENABLED(CONFIG_PHYLIB)
+int get_phy_c22_id(struct mii_bus *bus, int addr, u32 *phy_id);
 int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id);
 struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode);
 struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode);