This is a note to let you know that I've just added the patch titled
net: phy: micrel: Restore led_mode and clk_sel on resume
to the 4.9-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-micrel-restore-led_mode-and-clk_sel-on-resume.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Apr 9 17:09:24 CEST 2018
From: Leonard Crestez <leonard.crestez@xxxxxxx>
Date: Wed, 31 May 2017 13:29:30 +0300
Subject: net: phy: micrel: Restore led_mode and clk_sel on resume
From: Leonard Crestez <leonard.crestez@xxxxxxx>
[ Upstream commit 79e498a9c7da0737829ff864aae44df434105676 ]
These bits seem to be lost after a suspend/resume cycle so just set them
again. Do this by splitting the handling of these bits into a function
that is also called on resume.
This patch fixes ethernet suspend/resume on imx6ul-14x14-evk boards.
Signed-off-by: Leonard Crestez <leonard.crestez@xxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/phy/micrel.c | 42 ++++++++++++++++++++++++++++--------------
1 file changed, 28 insertions(+), 14 deletions(-)
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -268,23 +268,12 @@ out:
return ret;
}
-static int kszphy_config_init(struct phy_device *phydev)
+/* Some config bits need to be set again on resume, handle them here. */
+static int kszphy_config_reset(struct phy_device *phydev)
{
struct kszphy_priv *priv = phydev->priv;
- const struct kszphy_type *type;
int ret;
- if (!priv)
- return 0;
-
- type = priv->type;
-
- if (type->has_broadcast_disable)
- kszphy_broadcast_disable(phydev);
-
- if (type->has_nand_tree_disable)
- kszphy_nand_tree_disable(phydev);
-
if (priv->rmii_ref_clk_sel) {
ret = kszphy_rmii_clk_sel(phydev, priv->rmii_ref_clk_sel_val);
if (ret) {
@@ -295,7 +284,7 @@ static int kszphy_config_init(struct phy
}
if (priv->led_mode >= 0)
- kszphy_setup_led(phydev, type->led_mode_reg, priv->led_mode);
+ kszphy_setup_led(phydev, priv->type->led_mode_reg, priv->led_mode);
if (phy_interrupt_is_valid(phydev)) {
int ctl = phy_read(phydev, MII_BMCR);
@@ -311,6 +300,25 @@ static int kszphy_config_init(struct phy
return 0;
}
+static int kszphy_config_init(struct phy_device *phydev)
+{
+ struct kszphy_priv *priv = phydev->priv;
+ const struct kszphy_type *type;
+
+ if (!priv)
+ return 0;
+
+ type = priv->type;
+
+ if (type->has_broadcast_disable)
+ kszphy_broadcast_disable(phydev);
+
+ if (type->has_nand_tree_disable)
+ kszphy_nand_tree_disable(phydev);
+
+ return kszphy_config_reset(phydev);
+}
+
static int ksz8041_config_init(struct phy_device *phydev)
{
struct device_node *of_node = phydev->mdio.dev.of_node;
@@ -715,8 +723,14 @@ static int kszphy_suspend(struct phy_dev
static int kszphy_resume(struct phy_device *phydev)
{
+ int ret;
+
genphy_resume(phydev);
+ ret = kszphy_config_reset(phydev);
+ if (ret)
+ return ret;
+
/* Enable PHY Interrupts */
if (phy_interrupt_is_valid(phydev)) {
phydev->interrupts = PHY_INTERRUPT_ENABLED;
Patches currently in stable-queue which might be from leonard.crestez@xxxxxxx are
queue-4.9/arm-imx-add-mxc_cpu_imx6ull-and-cpu_is_imx6ull.patch
queue-4.9/net-phy-micrel-restore-led_mode-and-clk_sel-on-resume.patch