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813ecda1f3
Backport phylink patches for PCS/PHY caps OPs. This makes it easier to align future generic PCS patch and permit supporting special PHY that needs specific tune if "in-band" mode is enabled (for example Aeonsemi PHYs) This is also mainly using the upstream version of the Mediatek patch 739-net-add-negotiation-of-in-band-capabilities. All affected patch automatically refreshed. Link: https://github.com/openwrt/openwrt/pull/20461 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
80 lines
2.6 KiB
Diff
80 lines
2.6 KiB
Diff
From 5d58a890c02770ba8d790b1f3c6e8c0e20514dc2 Mon Sep 17 00:00:00 2001
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From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
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Date: Tue, 3 Dec 2024 15:31:18 +0000
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Subject: [PATCH 07/13] net: phy: add phy_config_inband()
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Add a method to configure the PHY's in-band mode.
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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Link: https://patch.msgid.link/E1tIUru-006IUI-08@rmk-PC.armlinux.org.uk
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/phy/phy.c | 32 ++++++++++++++++++++++++++++++++
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include/linux/phy.h | 6 ++++++
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2 files changed, 38 insertions(+)
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--- a/drivers/net/phy/phy.c
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+++ b/drivers/net/phy/phy.c
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@@ -1070,6 +1070,38 @@ unsigned int phy_inband_caps(struct phy_
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EXPORT_SYMBOL_GPL(phy_inband_caps);
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/**
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+ * phy_config_inband - configure the desired PHY in-band mode
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+ * @phydev: the phy_device struct
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+ * @modes: in-band modes to configure
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+ *
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+ * Description: disables, enables or enables-with-bypass in-band signalling
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+ * between the PHY and host system.
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+ *
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+ * Returns: zero on success, or negative errno value.
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+ */
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+int phy_config_inband(struct phy_device *phydev, unsigned int modes)
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+{
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+ int err;
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+
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+ if (!!(modes & LINK_INBAND_DISABLE) +
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+ !!(modes & LINK_INBAND_ENABLE) +
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+ !!(modes & LINK_INBAND_BYPASS) != 1)
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+ return -EINVAL;
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+
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+ mutex_lock(&phydev->lock);
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+ if (!phydev->drv)
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+ err = -EIO;
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+ else if (!phydev->drv->config_inband)
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+ err = -EOPNOTSUPP;
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+ else
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+ err = phydev->drv->config_inband(phydev, modes);
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+ mutex_unlock(&phydev->lock);
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+
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+ return err;
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+}
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+EXPORT_SYMBOL(phy_config_inband);
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+
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+/**
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* _phy_start_aneg - start auto-negotiation for this PHY device
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* @phydev: the phy_device struct
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*
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--- a/include/linux/phy.h
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+++ b/include/linux/phy.h
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@@ -980,6 +980,11 @@ struct phy_driver {
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phy_interface_t interface);
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/**
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+ * @config_inband: configure in-band mode for the PHY
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+ */
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+ int (*config_inband)(struct phy_device *phydev, unsigned int modes);
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+
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+ /**
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* @get_rate_matching: Get the supported type of rate matching for a
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* particular phy interface. This is used by phy consumers to determine
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* whether to advertise lower-speed modes for that interface. It is
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@@ -1860,6 +1865,7 @@ int phy_start_aneg(struct phy_device *ph
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int phy_aneg_done(struct phy_device *phydev);
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unsigned int phy_inband_caps(struct phy_device *phydev,
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phy_interface_t interface);
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+int phy_config_inband(struct phy_device *phydev, unsigned int modes);
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int phy_speed_down(struct phy_device *phydev, bool sync);
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int phy_speed_up(struct phy_device *phydev);
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bool phy_check_valid(int speed, int duplex, unsigned long *features);
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