From 7e0a7bf21da68d4f8044c43012d82c1ea10a46b2 Mon Sep 17 00:00:00 2001 From: Christian Marangi Date: Sat, 3 Feb 2024 21:18:23 +0100 Subject: [PATCH] generic: 6.1: backport LED fixes for qca808x PHY Backport LED fixes for qca808x PHY to restore correct functionality. Signed-off-by: Christian Marangi --- ...808x-fix-logic-error-in-LED-brightne.patch | 36 ++++++++++++++++ ...808x-default-to-LED-active-High-if-n.patch | 41 +++++++++++++++++++ 2 files changed, 77 insertions(+) create mode 100644 target/linux/generic/backport-6.1/715-v6.9-01-net-phy-qcom-qca808x-fix-logic-error-in-LED-brightne.patch create mode 100644 target/linux/generic/backport-6.1/715-v6.9-02-net-phy-qcom-qca808x-default-to-LED-active-High-if-n.patch diff --git a/target/linux/generic/backport-6.1/715-v6.9-01-net-phy-qcom-qca808x-fix-logic-error-in-LED-brightne.patch b/target/linux/generic/backport-6.1/715-v6.9-01-net-phy-qcom-qca808x-fix-logic-error-in-LED-brightne.patch new file mode 100644 index 000000000000..0a7b5358f136 --- /dev/null +++ b/target/linux/generic/backport-6.1/715-v6.9-01-net-phy-qcom-qca808x-fix-logic-error-in-LED-brightne.patch @@ -0,0 +1,36 @@ +From f2ec98566775dd4341ec1dcf93aa5859c60de826 Mon Sep 17 00:00:00 2001 +From: Christian Marangi +Date: Thu, 1 Feb 2024 14:46:00 +0100 +Subject: [PATCH 1/2] net: phy: qcom: qca808x: fix logic error in LED + brightness set + +In switching to using phy_modify_mmd and a more short version of the +LED ON/OFF condition in later revision, it was made a logic error where + +value ? QCA808X_LED_FORCE_ON : QCA808X_LED_FORCE_OFF is always true as +value is always OR with QCA808X_LED_FORCE_EN due to missing () +resulting in the testing condition being QCA808X_LED_FORCE_EN | value. + +Add the () to apply the correct condition and restore correct +functionality of the brightness ON/OFF. + +Fixes: 7196062b64ee ("net: phy: at803x: add LED support for qca808x") +Signed-off-by: Christian Marangi +Signed-off-by: David S. Miller +--- + drivers/net/phy/qcom/qca808x.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/net/phy/qcom/qca808x.c ++++ b/drivers/net/phy/qcom/qca808x.c +@@ -820,8 +820,8 @@ static int qca808x_led_brightness_set(st + + return phy_modify_mmd(phydev, MDIO_MMD_AN, reg, + QCA808X_LED_FORCE_EN | QCA808X_LED_FORCE_MODE_MASK, +- QCA808X_LED_FORCE_EN | value ? QCA808X_LED_FORCE_ON : +- QCA808X_LED_FORCE_OFF); ++ QCA808X_LED_FORCE_EN | (value ? QCA808X_LED_FORCE_ON : ++ QCA808X_LED_FORCE_OFF)); + } + + static int qca808x_led_blink_set(struct phy_device *phydev, u8 index, diff --git a/target/linux/generic/backport-6.1/715-v6.9-02-net-phy-qcom-qca808x-default-to-LED-active-High-if-n.patch b/target/linux/generic/backport-6.1/715-v6.9-02-net-phy-qcom-qca808x-default-to-LED-active-High-if-n.patch new file mode 100644 index 000000000000..e32ed7f77724 --- /dev/null +++ b/target/linux/generic/backport-6.1/715-v6.9-02-net-phy-qcom-qca808x-default-to-LED-active-High-if-n.patch @@ -0,0 +1,41 @@ +From f203c8c77c7616c099647636f4c67d59a45fe8a2 Mon Sep 17 00:00:00 2001 +From: Christian Marangi +Date: Thu, 1 Feb 2024 14:46:01 +0100 +Subject: [PATCH 2/2] net: phy: qcom: qca808x: default to LED active High if + not set + +qca808x PHY provide support for the led_polarity_set OP to configure +and apply the active-low property but on PHY reset, the Active High bit +is not set resulting in the LED driven as active-low. + +To fix this, check if active-low is not set in DT and enable Active High +polarity by default to restore correct funcionality of the LED. + +Fixes: 7196062b64ee ("net: phy: at803x: add LED support for qca808x") +Signed-off-by: Christian Marangi +Signed-off-by: David S. Miller +--- + drivers/net/phy/qcom/qca808x.c | 10 ++++++++++ + 1 file changed, 10 insertions(+) + +--- a/drivers/net/phy/qcom/qca808x.c ++++ b/drivers/net/phy/qcom/qca808x.c +@@ -290,8 +290,18 @@ static int qca808x_probe(struct phy_devi + + static int qca808x_config_init(struct phy_device *phydev) + { ++ struct qca808x_priv *priv = phydev->priv; + int ret; + ++ /* Default to LED Active High if active-low not in DT */ ++ if (priv->led_polarity_mode == -1) { ++ ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN, ++ QCA808X_MMD7_LED_POLARITY_CTRL, ++ QCA808X_LED_ACTIVE_HIGH); ++ if (ret) ++ return ret; ++ } ++ + /* Active adc&vga on 802.3az for the link 1000M and 100M */ + ret = phy_modify_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_ADDR_CLD_CTRL7, + QCA808X_8023AZ_AFE_CTRL_MASK, QCA808X_8023AZ_AFE_EN); -- 2.30.2