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net: phy: micrel: Restore led_mode and clk_sel on resume 

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@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Leonard Crestez 2017-05-31 13:29:30 +03:00 committed by David S. Miller
parent e6f4292ae0
commit 79e498a9c7
1 changed files with 28 additions and 14 deletions
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42
drivers/net/phy/micrel.c
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@ -268,11 +268,31 @@ static int kszphy_nand_tree_disable(struct phy_device *phydev)
return ret;
}
/* 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;
int ret;
if (priv->rmii_ref_clk_sel) {
ret = kszphy_rmii_clk_sel(phydev, priv->rmii_ref_clk_sel_val);
if (ret) {
phydev_err(phydev,
"failed to set rmii reference clock\n");
return ret;
}
}
if (priv->led_mode >= 0)
kszphy_setup_led(phydev, priv->type->led_mode_reg, priv->led_mode);
return 0;
}
static int kszphy_config_init(struct phy_device *phydev)
{
struct kszphy_priv *priv = phydev->priv;
const struct kszphy_type *type;
int ret;
if (!priv)
return 0;
@ -285,19 +305,7 @@ static int kszphy_config_init(struct phy_device *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) {
phydev_err(phydev,
"failed to set rmii reference clock\n");
return ret;
}
}
if (priv->led_mode >= 0)
kszphy_setup_led(phydev, type->led_mode_reg, priv->led_mode);
return 0;
return kszphy_config_reset(phydev);
}
static int ksz8041_config_init(struct phy_device *phydev)
@ -700,8 +708,14 @@ static int kszphy_suspend(struct phy_device *phydev)
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;