netdev - [PATCH net-next v2 2/3] net: bcmgenet: Pass "main" clock down to the MDIO driver

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Message-Id: <20240219204053.471825-3-florian.fainelli@broadcom.com>
Date: Mon, 19 Feb 2024 12:40:52 -0800
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: netdev@...r.kernel.org
Cc: Florian Fainelli <florian.fainelli@...adcom.com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Doug Berger <opendmb@...il.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	linux-kernel@...r.kernel.org (open list),
	Justin Chen <justin.chen@...adcom.com>
Subject: [PATCH net-next v2 2/3] net: bcmgenet: Pass "main" clock down to the MDIO driver

GENET has historically had to create a MDIO platform device for its
controller and pass some auxiliary data to it, like a MDIO completion
callback. Now we also pass the "main" clock to allow for the MDIO bus
controller to manage that clock adequately around I/O accesses.

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
Signed-off-by: Florian Fainelli <florian.fainelli@...adcom.com>
---
 drivers/net/ethernet/broadcom/genet/bcmmii.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index cbbe004621bc..7a21950da77c 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -476,6 +476,10 @@ static int bcmgenet_mii_register(struct bcmgenet_priv *priv)
 	ppd.wait_func = bcmgenet_mii_wait;
 	ppd.wait_func_data = priv;
 	ppd.bus_name = "bcmgenet MII bus";
+	/* Pass a reference to our "main" clock which is used for MDIO
+	 * transfers
+	 */
+	ppd.clk = priv->clk;
 
 	/* Unimac MDIO bus controller starts at UniMAC offset + MDIO_CMD
 	 * and is 2 * 32-bits word long, 8 bytes total.
-- 
2.34.1