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net: phy: micrel: make *-skew-ps check more lenient

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[ Upstream commit 67ca5159db ]

It seems reasonable to fine-tune only some of the skew values when using
one of the rgmii-*id PHY modes, and even when all skew values are
specified, using the correct ID PHY mode makes sense for documentation
purposes. Such a configuration also appears in the binding docs in
Documentation/devicetree/bindings/net/micrel-ksz90x1.txt, so the driver
should not warn about it.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/20211012103402.21438-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matthias Schiffer 2021-10-12 12:34:02 +02:00 committed by Greg Kroah-Hartman
parent abbc58deaa
commit 9796eb9137
1 changed files with 2 additions and 2 deletions
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4
drivers/net/phy/micrel.c
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@ -863,9 +863,9 @@ static int ksz9031_config_init(struct phy_device *phydev)
MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4,
tx_data_skews, 4, &update);
if (update && phydev->interface != PHY_INTERFACE_MODE_RGMII)
if (update && !phy_interface_is_rgmii(phydev))
phydev_warn(phydev,
"*-skew-ps values should be used only with phy-mode = \"rgmii\"\n");
"*-skew-ps values should be used only with RGMII PHY modes\n");
/* Silicon Errata Sheet (DS80000691D or DS80000692D):
* When the device links in the 1000BASE-T slave mode only,