From: Andrew Lunn <andrew@lunn.ch>
To: Calvin Johnson <calvin.johnson@oss.nxp.com>
Cc: Grant Likely <grant.likely@arm.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Jeremy Linton <jeremy.linton@arm.com>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Cristi Sovaiala <cristian.sovaiala@nxp.com>,
Florin Laurentiu Chiculita <florinlaurentiu.chiculita@nxp.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>,
Madalin Bucur <madalin.bucur@oss.nxp.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
linux-kernel@vger.kernel.org, linux.cj@gmail.com,
netdev@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Diana Madalina Craciun <diana.craciun@nxp.com>,
Laurentiu Tudor <laurentiu.tudor@nxp.com>,
"David S. Miller" <davem@davemloft.net>,
Heiner Kallweit <hkallweit1@gmail.com>,
Jakub Kicinski <kuba@kernel.org>
Subject: Re: [net-next PATCH v1 3/7] net: phy: Introduce fwnode_get_phy_id()
Date: Wed, 30 Sep 2020 18:34:40 +0200 [thread overview]
Message-ID: <20200930163440.GR3996795@lunn.ch> (raw)
In-Reply-To: <20200930160430.7908-4-calvin.johnson@oss.nxp.com>
> +/* Extract the phy ID from the compatible string of the form
> + * ethernet-phy-idAAAA.BBBB.
> + */
> +int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id)
> +{
> + unsigned int upper, lower;
> + const char *cp;
> + int ret;
> +
> + ret = fwnode_property_read_string(fwnode, "compatible", &cp);
> + if (ret)
> + return ret;
> +
> + if (sscanf(cp, "ethernet-phy-id%4x.%4x", &upper, &lower) == 2) {
> + *phy_id = ((upper & 0xFFFF) << 16) | (lower & 0xFFFF);
> + return 0;
> + }
> + return -EINVAL;
> +}
> +EXPORT_SYMBOL(fwnode_get_phy_id);
Hi Calvin
Do you really need this? Do you have a board with a broken PHY ID?
> /**
> * get_phy_device - reads the specified PHY device and returns its @phy_device
> * struct
> @@ -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?
Andrew
next prev parent reply other threads:[~2020-09-30 16:34 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 16:04 [net-next PATCH v1 0/7] ACPI support for dpaa2 driver Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 1/7] Documentation: ACPI: DSD: Document MDIO PHY Calvin Johnson
2020-09-30 16:37 ` Rafael J. Wysocki
2020-10-01 13:26 ` Calvin Johnson
2020-10-02 11:08 ` Grant Likely
2020-10-02 14:13 ` Rafael J. Wysocki
2020-09-30 16:04 ` [net-next PATCH v1 2/7] net: phy: Introduce phy related fwnode functions Calvin Johnson
2020-09-30 22:03 ` David Miller
2020-10-01 3:58 ` Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 3/7] net: phy: Introduce fwnode_get_phy_id() Calvin Johnson
2020-09-30 16:34 ` Andrew Lunn [this message]
2020-09-30 18:07 ` Russell King - ARM Linux admin
2020-09-30 18:19 ` Andrew Lunn
2020-10-01 4:00 ` Calvin Johnson
2020-10-02 10:48 ` Grant Likely
2020-10-02 11:05 ` Grant Likely
2020-10-02 15:14 ` Florian Fainelli
2020-10-02 15:50 ` Russell King - ARM Linux admin
2020-10-03 18:03 ` Calvin Johnson
2020-10-03 18:00 ` Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 4/7] net: mdiobus: Introduce fwnode_mdiobus_register_phy() Calvin Johnson
2020-09-30 22:04 ` David Miller
2020-09-30 16:04 ` [net-next PATCH v1 5/7] phylink: introduce phylink_fwnode_phy_connect() Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 6/7] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Calvin Johnson
2020-10-01 15:36 ` Andy Shevchenko
2020-10-03 16:30 ` Calvin Johnson
2020-10-02 11:22 ` Grant Likely
2020-10-03 17:39 ` Calvin Johnson
2020-10-07 15:50 ` Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 7/7] net/fsl: Use _ADR ACPI object to register PHYs Calvin Johnson
2020-09-30 16:27 ` Andrew Lunn
2020-09-30 22:04 ` David Miller
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