From e6f4292ae0a1e73fae26ced57de13a48f71ad1fa Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Wed, 31 May 2017 13:29:29 +0300 Subject: [PATCH 1/2] ARM: dts: imx6ul-14x14-evk: Add ksz8081 phy properties Right now mach-imx6ul registers a fixup for the ksz8081 phy. The same register values can be set through the micrel phy driver by using dts properties. This seems preferable and allows cleanly fixing suspend/resume. Signed-off-by: Leonard Crestez Reviewed-by: Fabio Estevam Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- arch/arm/boot/dts/imx6ul-14x14-evk.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/imx6ul-14x14-evk.dts b/arch/arm/boot/dts/imx6ul-14x14-evk.dts index f18e1f1d0ce2c..d2be8aa3370b7 100644 --- a/arch/arm/boot/dts/imx6ul-14x14-evk.dts +++ b/arch/arm/boot/dts/imx6ul-14x14-evk.dts @@ -120,10 +120,16 @@ ethphy0: ethernet-phy@2 { reg = <2>; + micrel,led-mode = <1>; + clocks = <&clks IMX6UL_CLK_ENET_REF>; + clock-names = "rmii-ref"; }; ethphy1: ethernet-phy@1 { reg = <1>; + micrel,led-mode = <1>; + clocks = <&clks IMX6UL_CLK_ENET2_REF>; + clock-names = "rmii-ref"; }; }; }; From 79e498a9c7da0737829ff864aae44df434105676 Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Wed, 31 May 2017 13:29:30 +0300 Subject: [PATCH 2/2] 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 Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/phy/micrel.c | 42 ++++++++++++++++++++++++++-------------- 1 file changed, 28 insertions(+), 14 deletions(-) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 6a5fd18f062c4..b9252b8d81ffb 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -268,23 +268,12 @@ static int kszphy_nand_tree_disable(struct phy_device *phydev) 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) { @@ -295,11 +284,30 @@ static int kszphy_config_init(struct phy_device *phydev) } 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); 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; @@ -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;