netdev - [PATCH net-next v1 07/10] net: dsa: microchip: warn about not supported synclko properties on KSZ9893 chips

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Date:   Fri, 29 Jul 2022 15:03:43 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Woojung Huh <woojung.huh@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH net-next v1 07/10] net: dsa: microchip: warn about not supported synclko properties on KSZ9893 chips

KSZ9893 family of chips do not support synclko property. So warn about
without preventing driver from start.

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 drivers/net/dsa/microchip/ksz_common.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 71b5349d006a..d3a9836c706f 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -1916,6 +1916,13 @@ int ksz_switch_register(struct ksz_device *dev)
 			dev_err(dev->dev, "inconsistent synclko settings\n");
 			return -EINVAL;
 		}
+
+		if (dev->chip_id == KSZ9893_CHIP_ID && (dev->synclko_125 ||
+							dev->synclko_disable)) {
+			dev_warn(dev->dev, "microchip,synclko-125 and microchip,synclko-disable "
+				 "properties are not supported on this chip. "
+				 "Please fix you devicetree.\n");
+		}
 	}
 
 	ret = dsa_register_switch(dev->ds);
-- 
2.30.2