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8a9273d51e
Copy backport, hack, pending patch and config from 6.1 to 6.6. Signed-off-by: Weijie Gao <hackpascal@gmail.com>
327 lines
9.6 KiB
Diff
327 lines
9.6 KiB
Diff
From f508a226b517a6a8afd78a317de46bc83e3e3d51 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Tue, 6 Feb 2024 18:31:13 +0100
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Subject: [PATCH 10/10] net: phy: qca807x: add support for configurable LED
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QCA8072/5 have up to 2 LEDs attached for PHY.
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LEDs can be configured to be ON/hw blink or be set to HW control.
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Hw blink mode is set to blink at 4Hz or 250ms.
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PHY can support both copper (TP) or fiber (FIBRE) kind and supports
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different HW control modes based on the port type.
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HW control modes supported for netdev trigger for copper ports are:
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- LINK_10
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- LINK_100
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- LINK_1000
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- TX
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- RX
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- FULL_DUPLEX
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- HALF_DUPLEX
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HW control modes supported for netdev trigger for fiber ports are:
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- LINK_100
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- LINK_1000
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- TX
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- RX
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- FULL_DUPLEX
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- HALF_DUPLEX
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LED support conflicts with GPIO controller feature and must be disabled
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if gpio-controller is used for the PHY.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/phy/qcom/qca807x.c | 256 ++++++++++++++++++++++++++++++++-
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1 file changed, 254 insertions(+), 2 deletions(-)
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--- a/drivers/net/phy/qcom/qca807x.c
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+++ b/drivers/net/phy/qcom/qca807x.c
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@@ -57,8 +57,18 @@
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#define QCA807X_MMD7_LED_CTRL(x) (0x8074 + ((x) * 2))
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#define QCA807X_MMD7_LED_FORCE_CTRL(x) (0x8075 + ((x) * 2))
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-#define QCA807X_GPIO_FORCE_EN BIT(15)
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-#define QCA807X_GPIO_FORCE_MODE_MASK GENMASK(14, 13)
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+/* LED hw control pattern for fiber port */
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+#define QCA807X_LED_FIBER_PATTERN_MASK GENMASK(11, 1)
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+#define QCA807X_LED_FIBER_TXACT_BLK_EN BIT(10)
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+#define QCA807X_LED_FIBER_RXACT_BLK_EN BIT(9)
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+#define QCA807X_LED_FIBER_FDX_ON_EN BIT(6)
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+#define QCA807X_LED_FIBER_HDX_ON_EN BIT(5)
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+#define QCA807X_LED_FIBER_1000BX_ON_EN BIT(2)
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+#define QCA807X_LED_FIBER_100FX_ON_EN BIT(1)
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+
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+/* Some device repurpose the LED as GPIO out */
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+#define QCA807X_GPIO_FORCE_EN QCA808X_LED_FORCE_EN
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+#define QCA807X_GPIO_FORCE_MODE_MASK QCA808X_LED_FORCE_MODE_MASK
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#define QCA807X_FUNCTION_CONTROL 0x10
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#define QCA807X_FC_MDI_CROSSOVER_MODE_MASK GENMASK(6, 5)
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@@ -121,6 +131,233 @@ static int qca807x_cable_test_start(stru
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return 0;
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}
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+static int qca807x_led_parse_netdev(struct phy_device *phydev, unsigned long rules,
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+ u16 *offload_trigger)
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+{
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+ /* Parsing specific to netdev trigger */
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+ switch (phydev->port) {
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+ case PORT_TP:
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+ if (test_bit(TRIGGER_NETDEV_TX, &rules))
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+ *offload_trigger |= QCA808X_LED_TX_BLINK;
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+ if (test_bit(TRIGGER_NETDEV_RX, &rules))
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+ *offload_trigger |= QCA808X_LED_RX_BLINK;
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+ if (test_bit(TRIGGER_NETDEV_LINK_10, &rules))
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+ *offload_trigger |= QCA808X_LED_SPEED10_ON;
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+ if (test_bit(TRIGGER_NETDEV_LINK_100, &rules))
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+ *offload_trigger |= QCA808X_LED_SPEED100_ON;
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+ if (test_bit(TRIGGER_NETDEV_LINK_1000, &rules))
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+ *offload_trigger |= QCA808X_LED_SPEED1000_ON;
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+ if (test_bit(TRIGGER_NETDEV_HALF_DUPLEX, &rules))
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+ *offload_trigger |= QCA808X_LED_HALF_DUPLEX_ON;
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+ if (test_bit(TRIGGER_NETDEV_FULL_DUPLEX, &rules))
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+ *offload_trigger |= QCA808X_LED_FULL_DUPLEX_ON;
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+ break;
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+ case PORT_FIBRE:
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+ if (test_bit(TRIGGER_NETDEV_TX, &rules))
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+ *offload_trigger |= QCA807X_LED_FIBER_TXACT_BLK_EN;
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+ if (test_bit(TRIGGER_NETDEV_RX, &rules))
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+ *offload_trigger |= QCA807X_LED_FIBER_RXACT_BLK_EN;
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+ if (test_bit(TRIGGER_NETDEV_LINK_100, &rules))
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+ *offload_trigger |= QCA807X_LED_FIBER_100FX_ON_EN;
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+ if (test_bit(TRIGGER_NETDEV_LINK_1000, &rules))
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+ *offload_trigger |= QCA807X_LED_FIBER_1000BX_ON_EN;
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+ if (test_bit(TRIGGER_NETDEV_HALF_DUPLEX, &rules))
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+ *offload_trigger |= QCA807X_LED_FIBER_HDX_ON_EN;
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+ if (test_bit(TRIGGER_NETDEV_FULL_DUPLEX, &rules))
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+ *offload_trigger |= QCA807X_LED_FIBER_FDX_ON_EN;
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+ break;
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+ default:
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+ return -EOPNOTSUPP;
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+ }
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+
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+ if (rules && !*offload_trigger)
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+ return -EOPNOTSUPP;
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+
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+ return 0;
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+}
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+
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+static int qca807x_led_hw_control_enable(struct phy_device *phydev, u8 index)
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+{
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+ u16 reg;
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+
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+ if (index > 1)
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+ return -EINVAL;
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+
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+ reg = QCA807X_MMD7_LED_FORCE_CTRL(index);
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+ return qca808x_led_reg_hw_control_enable(phydev, reg);
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+}
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+
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+static int qca807x_led_hw_is_supported(struct phy_device *phydev, u8 index,
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+ unsigned long rules)
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+{
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+ u16 offload_trigger = 0;
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+
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+ if (index > 1)
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+ return -EINVAL;
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+
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+ return qca807x_led_parse_netdev(phydev, rules, &offload_trigger);
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+}
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+
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+static int qca807x_led_hw_control_set(struct phy_device *phydev, u8 index,
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+ unsigned long rules)
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+{
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+ u16 reg, mask, offload_trigger = 0;
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+ int ret;
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+
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+ if (index > 1)
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+ return -EINVAL;
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+
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+ ret = qca807x_led_parse_netdev(phydev, rules, &offload_trigger);
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+ if (ret)
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+ return ret;
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+
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+ ret = qca807x_led_hw_control_enable(phydev, index);
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+ if (ret)
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+ return ret;
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+
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+ switch (phydev->port) {
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+ case PORT_TP:
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+ reg = QCA807X_MMD7_LED_CTRL(index);
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+ mask = QCA808X_LED_PATTERN_MASK;
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+ break;
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+ case PORT_FIBRE:
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+ /* HW control pattern bits are in LED FORCE reg */
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+ reg = QCA807X_MMD7_LED_FORCE_CTRL(index);
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+ mask = QCA807X_LED_FIBER_PATTERN_MASK;
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+ break;
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+ default:
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+ return -EINVAL;
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+ }
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+
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+ return phy_modify_mmd(phydev, MDIO_MMD_AN, reg, mask,
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+ offload_trigger);
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+}
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+
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+static bool qca807x_led_hw_control_status(struct phy_device *phydev, u8 index)
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+{
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+ u16 reg;
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+
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+ if (index > 1)
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+ return false;
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+
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+ reg = QCA807X_MMD7_LED_FORCE_CTRL(index);
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+ return qca808x_led_reg_hw_control_status(phydev, reg);
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+}
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+
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+static int qca807x_led_hw_control_get(struct phy_device *phydev, u8 index,
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+ unsigned long *rules)
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+{
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+ u16 reg;
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+ int val;
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+
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+ if (index > 1)
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+ return -EINVAL;
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+
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+ /* Check if we have hw control enabled */
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+ if (qca807x_led_hw_control_status(phydev, index))
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+ return -EINVAL;
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+
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+ /* Parsing specific to netdev trigger */
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+ switch (phydev->port) {
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+ case PORT_TP:
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+ reg = QCA807X_MMD7_LED_CTRL(index);
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+ val = phy_read_mmd(phydev, MDIO_MMD_AN, reg);
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+ if (val & QCA808X_LED_TX_BLINK)
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+ set_bit(TRIGGER_NETDEV_TX, rules);
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+ if (val & QCA808X_LED_RX_BLINK)
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+ set_bit(TRIGGER_NETDEV_RX, rules);
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+ if (val & QCA808X_LED_SPEED10_ON)
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+ set_bit(TRIGGER_NETDEV_LINK_10, rules);
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+ if (val & QCA808X_LED_SPEED100_ON)
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+ set_bit(TRIGGER_NETDEV_LINK_100, rules);
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+ if (val & QCA808X_LED_SPEED1000_ON)
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+ set_bit(TRIGGER_NETDEV_LINK_1000, rules);
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+ if (val & QCA808X_LED_HALF_DUPLEX_ON)
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+ set_bit(TRIGGER_NETDEV_HALF_DUPLEX, rules);
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+ if (val & QCA808X_LED_FULL_DUPLEX_ON)
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+ set_bit(TRIGGER_NETDEV_FULL_DUPLEX, rules);
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+ break;
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+ case PORT_FIBRE:
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+ /* HW control pattern bits are in LED FORCE reg */
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+ reg = QCA807X_MMD7_LED_FORCE_CTRL(index);
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+ val = phy_read_mmd(phydev, MDIO_MMD_AN, reg);
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+ if (val & QCA807X_LED_FIBER_TXACT_BLK_EN)
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+ set_bit(TRIGGER_NETDEV_TX, rules);
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+ if (val & QCA807X_LED_FIBER_RXACT_BLK_EN)
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+ set_bit(TRIGGER_NETDEV_RX, rules);
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+ if (val & QCA807X_LED_FIBER_100FX_ON_EN)
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+ set_bit(TRIGGER_NETDEV_LINK_100, rules);
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+ if (val & QCA807X_LED_FIBER_1000BX_ON_EN)
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+ set_bit(TRIGGER_NETDEV_LINK_1000, rules);
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+ if (val & QCA807X_LED_FIBER_HDX_ON_EN)
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+ set_bit(TRIGGER_NETDEV_HALF_DUPLEX, rules);
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+ if (val & QCA807X_LED_FIBER_FDX_ON_EN)
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+ set_bit(TRIGGER_NETDEV_FULL_DUPLEX, rules);
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+ break;
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+ default:
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+ return -EINVAL;
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+ }
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+
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+ return 0;
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+}
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+
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+static int qca807x_led_hw_control_reset(struct phy_device *phydev, u8 index)
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+{
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+ u16 reg, mask;
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+
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+ if (index > 1)
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+ return -EINVAL;
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+
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+ switch (phydev->port) {
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+ case PORT_TP:
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+ reg = QCA807X_MMD7_LED_CTRL(index);
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+ mask = QCA808X_LED_PATTERN_MASK;
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+ break;
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+ case PORT_FIBRE:
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+ /* HW control pattern bits are in LED FORCE reg */
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+ reg = QCA807X_MMD7_LED_FORCE_CTRL(index);
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+ mask = QCA807X_LED_FIBER_PATTERN_MASK;
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+ break;
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+ default:
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+ return -EINVAL;
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+ }
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+
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+ return phy_clear_bits_mmd(phydev, MDIO_MMD_AN, reg, mask);
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+}
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+
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+static int qca807x_led_brightness_set(struct phy_device *phydev,
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+ u8 index, enum led_brightness value)
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+{
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+ u16 reg;
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+ int ret;
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+
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+ if (index > 1)
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+ return -EINVAL;
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+
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+ /* If we are setting off the LED reset any hw control rule */
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+ if (!value) {
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+ ret = qca807x_led_hw_control_reset(phydev, index);
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+ if (ret)
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+ return ret;
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+ }
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+
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+ reg = QCA807X_MMD7_LED_FORCE_CTRL(index);
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+ return qca808x_led_reg_brightness_set(phydev, reg, value);
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+}
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+
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+static int qca807x_led_blink_set(struct phy_device *phydev, u8 index,
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+ unsigned long *delay_on,
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+ unsigned long *delay_off)
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+{
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+ u16 reg;
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+
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+ if (index > 1)
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+ return -EINVAL;
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+
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+ reg = QCA807X_MMD7_LED_FORCE_CTRL(index);
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+ return qca808x_led_reg_blink_set(phydev, reg, delay_on, delay_off);
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+}
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+
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#ifdef CONFIG_GPIOLIB
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static int qca807x_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
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{
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@@ -496,6 +733,16 @@ static int qca807x_probe(struct phy_devi
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"qcom,dac-disable-bias-current-tweak");
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if (IS_ENABLED(CONFIG_GPIOLIB)) {
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+ /* Make sure we don't have mixed leds node and gpio-controller
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+ * to prevent registering leds and having gpio-controller usage
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+ * conflicting with them.
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+ */
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+ if (of_find_property(node, "leds", NULL) &&
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+ of_find_property(node, "gpio-controller", NULL)) {
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+ phydev_err(phydev, "Invalid property detected. LEDs and gpio-controller are mutually exclusive.");
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+ return -EINVAL;
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+ }
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+
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/* Do not register a GPIO controller unless flagged for it */
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if (of_property_read_bool(node, "gpio-controller")) {
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ret = qca807x_gpio(phydev);
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@@ -580,6 +827,11 @@ static struct phy_driver qca807x_drivers
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.suspend = genphy_suspend,
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.cable_test_start = qca807x_cable_test_start,
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.cable_test_get_status = qca808x_cable_test_get_status,
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+ .led_brightness_set = qca807x_led_brightness_set,
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+ .led_blink_set = qca807x_led_blink_set,
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+ .led_hw_is_supported = qca807x_led_hw_is_supported,
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+ .led_hw_control_set = qca807x_led_hw_control_set,
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+ .led_hw_control_get = qca807x_led_hw_control_get,
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},
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};
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module_phy_driver(qca807x_drivers);
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