| Message ID | 1595416934-18709-1-git-send-email-vikas.singh@puresoftware.com |
|---|---|
| State | Rejected |
| Delegated to: | David Miller |
| Headers | show |
| Series | net: Phy: Add PHY lookup support on MDIO bus in case of ACPI probe | expand |
> *Disclaimer* -The information transmitted is intended solely for the > individual or entity to which it is addressed and may contain > confidential and/or privileged material. Any review, > re-transmission, dissemination or other use of or taking action in > reliance upon this information by persons or entities other than the > intended recipient is prohibited. If you have received this email in > error please contact the sender and delete the material from any > computer. I.m going to partially ignore this request to delete your email... This patch is dependent on Calvin Johnson [net-next PATCH v7 0/6] ACPI support for dpaa2 MAC driver. which is stuck in limbo waiting for an ACPI maintainer to ACK/NACK it. I've also had off list suggestions it should be NACKed. If it does get NACKed, it makes this patch pointless. Andrew
From: Vikas Singh <vikas.singh@puresoftware.com> Date: Wed, 22 Jul 2020 16:52:14 +0530 > *Disclaimer* -The information transmitted is intended solely for the > individual > or entity to which it is addressed and may contain confidential > and/or > privileged material. Any review, re-transmission, dissemination or > other use of > or taking action in reliance upon this information by persons > or entities other > than the intended recipient is prohibited. If you have > received this email in > error please contact the sender and delete the > material from any computer. In > such instances you are further prohibited > from reproducing, disclosing, > distributing or taking any action in reliance > on it.As a recipient of this email, > you are responsible for screening its > contents and the contents of any > attachments for the presence of viruses. > No liability is accepted for any > damages caused by any virus transmitted by > this email. Postings with such disclaimers will be ignored.
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 46b3370..7275eff 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -447,8 +447,25 @@ static void of_mdiobus_link_mdiodev(struct mii_bus *bus, struct device *dev = &mdiodev->dev; struct device_node *child; - if (dev->of_node || !bus->dev.of_node) + if (dev->of_node || !bus->dev.of_node) { + /* Checking for acpi node, before returning */ + struct fwnode_handle *fwnode; + + /* Set the device firmware node to look for child nodes */ + bus->dev.fwnode = bus->parent->fwnode; + + device_for_each_child_node(&bus->dev, fwnode) { + int addr; + + if (fwnode_property_read_u32(fwnode, "reg", &addr)) + continue; + if (addr == mdiodev->addr) { + dev->fwnode = fwnode; + break; + } + } return; + } for_each_available_child_of_node(bus->dev.of_node, child) { int addr;
Auto-probe of c45 devices with extended scanning in xgmac_mdio works well but fails to update device "fwnode" while registering PHYs on MDIO bus. This patch is based on https://www.spinics.net/lists/netdev/msg662173.html This change will update the "fwnode" while PHYs get registered and allow lookup for registered PHYs on MDIO bus from other drivers while probing. Signed-off-by: Vikas Singh <vikas.singh@puresoftware.com> --- drivers/net/phy/mdio_bus.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)