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Patch "net: phy: Initialize mdio clock at probe function" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Jun 27, 2017

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This is a note to let you know that I've just added the patch titled

net: phy: Initialize mdio clock at probe function

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
net-phy-initialize-mdio-clock-at-probe-function.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From bb1a619735b4660f21bce3e728b937640024b4ad Mon Sep 17 00:00:00 2001

From: Yendapally Reddy Dhananjaya Reddy <[email protected]>
Date: Wed, 8 Feb 2017 17:14:26 -0500
Subject: net: phy: Initialize mdio clock at probe function

From: Yendapally Reddy Dhananjaya Reddy <[email protected]>

commit bb1a619735b4660f21bce3e728b937640024b4ad upstream.

USB PHYs need the MDIO clock divisor enabled earlier to work. Initialize mdio clock divisor in probe function. The ext bus bit available in the same register will be used by mdio mux to enable external mdio.

---
 drivers/net/phy/mdio-bcm-iproc.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
drivers/net/phy/mdio-bcm-iproc.c +2 -4
@@ -81,8 +81,6 @@ static int iproc_mdio_read(struct mii_bu
 	if (rc)
 		return rc;
 
-	iproc_mdio_config_clk(priv->base);
-
 	/* Prepare the read operation */
 	cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
 		(reg << MII_DATA_RA_SHIFT) |
@@ -112,8 +110,6 @@ static int iproc_mdio_write(struct mii_b
 	if (rc)
 		return rc;
 
-	iproc_mdio_config_clk(priv->base);
-
 	/* Prepare the write operation */
 	cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
 		(reg << MII_DATA_RA_SHIFT) |
@@ -163,6 +159,8 @@ static int iproc_mdio_probe(struct platf
 	bus->read = iproc_mdio_read;
 	bus->write = iproc_mdio_write;
 
+	iproc_mdio_config_clk(priv->base);
+
 	rc = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (rc) {
 		dev_err(&pdev->dev, "MDIO bus registration failed\n");

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/net-phy-initialize-mdio-clock-at-probe-function.patch