Re: [net-next PATCH v1 3/7] net: phy: Introduce fwnode_get_phy_id()
From: Calvin Johnson <hidden>
Date: 2020-10-01 04:00:33
Also in:
linux-acpi, linux-arm-kernel, lkml
From: Calvin Johnson <hidden>
Date: 2020-10-01 04:00:33
Also in:
linux-acpi, linux-arm-kernel, lkml
On Wed, Sep 30, 2020 at 08:19:02PM +0200, Andrew Lunn wrote:
On Wed, Sep 30, 2020 at 07:07:25PM +0100, Russell King - ARM Linux admin wrote:quoted
On Wed, Sep 30, 2020 at 06:34:40PM +0200, Andrew Lunn wrote:quoted
quoted
@@ -2866,7 +2888,15 @@ EXPORT_SYMBOL_GPL(device_phy_find_device); */ struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode) { - return fwnode_find_reference(fwnode, "phy-handle", 0); + struct fwnode_handle *phy_node; + + phy_node = fwnode_find_reference(fwnode, "phy-handle", 0); + if (is_acpi_node(fwnode) || !IS_ERR(phy_node)) + return phy_node; + phy_node = fwnode_find_reference(fwnode, "phy", 0); + if (IS_ERR(phy_node)) + phy_node = fwnode_find_reference(fwnode, "phy-device", 0); + return phy_node;Why do you have three different ways to reference a PHY?Compatibility with the DT version - note that "phy" and "phy-device" are only used for non-ACPI fwnodes. This should allow us to convert drivers where necessary without fear of causing DT regressions.Ah. A comment would be good here.
Sure. Will add comment. Thanks Calvin