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

From: Matthias Schiffer
Date: Tue Oct 12 2021 - 06:34:41 EST


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@xxxxxxxxxxxxxxx>
---
drivers/net/phy/micrel.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index c330a5a9f665..03e58ebf68af 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -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,
--
2.17.1