From 00b1bad961fff51db71573f5fc6e4e35b47381b2 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Beh=C3=BAn?= Date: Wed, 27 Apr 2022 12:41:49 +0200 Subject: [PATCH] net: mdio-uclass: add dm_phy_find_by_ofnode() helper MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add helper to resolve PHY node from it's ofnode via DM MDIO subsystem. Signed-off-by: Marek Behún Reviewed-by: Ramon Fried Reviewed-by: Stefan Roese --- include/miiphy.h | 9 +++++++++ net/mdio-uclass.c | 22 ++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/include/miiphy.h b/include/miiphy.h index 110921f..c66a184 100644 --- a/include/miiphy.h +++ b/include/miiphy.h @@ -189,6 +189,15 @@ int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 va int dm_mdio_reset(struct udevice *mdio_dev); /** + * dm_phy_find_by_ofnode - Find PHY device by ofnode + * + * @phynode: PHY's ofnode + * + * Return: pointer to phy_device, or NULL on error + */ +struct phy_device *dm_phy_find_by_ofnode(ofnode phynode); + +/** * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO * * @mdiodev: mdio device the PHY is accesible on diff --git a/net/mdio-uclass.c b/net/mdio-uclass.c index 7593618..4401492 100644 --- a/net/mdio-uclass.c +++ b/net/mdio-uclass.c @@ -129,6 +129,28 @@ static int dm_mdio_pre_remove(struct udevice *dev) return 0; } +struct phy_device *dm_phy_find_by_ofnode(ofnode phynode) +{ + struct mdio_perdev_priv *pdata; + struct udevice *mdiodev; + u32 phy_addr; + + if (ofnode_read_u32(phynode, "reg", &phy_addr)) + return NULL; + + if (uclass_get_device_by_ofnode(UCLASS_MDIO, + ofnode_get_parent(phynode), + &mdiodev)) + return NULL; + + if (device_probe(mdiodev)) + return NULL; + + pdata = dev_get_uclass_priv(mdiodev); + + return phy_find_by_mask(pdata->mii_bus, BIT(phy_addr)); +} + struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr, struct udevice *ethdev, phy_interface_t interface) -- 2.7.4