diff options
| author | Vladimir Oltean | 2021-09-29 18:04:38 +0300 |
|---|---|---|
| committer | Ramon Fried | 2021-11-23 09:57:55 +0200 |
| commit | 0783b16509a1e6d9821084ec64f5be1cc091c7f9 (patch) | |
| tree | ce7951d829048a1c82ddc0e133725b80b1df246e /include/net | |
| parent | 8a5c0570333a2c37ff8d8d53018df4b65ce77a47 (diff) | |
net: dsa: allow drivers to get the port OF node
In the current DSA switch driver API, only the udevice of the switch
(belonging to UCLASS_DSA) is exposed, as well as an "int port" argument.
So drivers do not have access to the udevice of individual ports
(belonging to UCLASS_ETH), one of the reasons being that not all ports
have an associated UCLASS_ETH udevice.
However, all DSA ports have an OF node, and in some cases the driver
needs a handle to it, for all ports including the CPU port. Example: the
following Linux per-port device tree property:
managed = "in-band-status";
states whether a port should operate with clause 37 in-band autoneg
enabled or not.
This patch exposes a function which can be called by individual drivers
as needed.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/dsa.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index a339a497303..1b1068cd88c 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -6,6 +6,7 @@ #ifndef __DSA_H__ #define __DSA_H__ +#include <dm/ofnode.h> #include <phy.h> #include <net.h> @@ -146,6 +147,17 @@ int dsa_set_tagging(struct udevice *dev, ushort headroom, ushort tailroom); struct udevice *dsa_get_master(struct udevice *dev); /** + * dsa_port_get_ofnode() - Return a reference to the given port's OF node + * + * Can be called at driver probe time or later. + * + * @dev: DSA switch udevice pointer + * @port: Port index + * @return OF node reference if OK, NULL on error + */ +ofnode dsa_port_get_ofnode(struct udevice *dev, int port); + +/** * dsa_port_get_pdata() - Helper that returns the platdata of an active * (non-CPU) DSA port device. * |