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From f058b2dd70b1a5503dff899010aeb53b436091e5 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Wed, 28 Feb 2024 18:24:09 +0100
Subject: [PATCH 1/2] net: phy: qcom: qca808x: add helper for checking for 1G
only model
There are 2 versions of QCA808x, one 2.5G capable and one 1G capable.
Currently, this matter only in the .get_features call however, it will
be required for filling supported interface modes so lets add a helper
that can be reused.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/qcom/qca808x.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
--- a/drivers/net/phy/qcom/qca808x.c
+++ b/drivers/net/phy/qcom/qca808x.c
@@ -156,6 +156,17 @@ static bool qca808x_has_fast_retrain_or_
return linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
}
+static bool qca808x_is_1g_only(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_CHIP_TYPE);
+ if (ret < 0)
+ return true;
+
+ return !!(QCA808X_PHY_CHIP_TYPE_1G & ret);
+}
+
static int qca808x_probe(struct phy_device *phydev)
{
struct device *dev = &phydev->mdio.dev;
@@ -350,11 +361,7 @@ static int qca808x_get_features(struct p
* existed in the bit0 of MMD1.21, we need to remove it manually if
* it is the qca8081 1G chip according to the bit0 of MMD7.0x901d.
*/
- ret = phy_read_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_CHIP_TYPE);
- if (ret < 0)
- return ret;
-
- if (QCA808X_PHY_CHIP_TYPE_1G & ret)
+ if (qca808x_is_1g_only(phydev))
linkmode_clear_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
return 0;
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