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generic: add hack for MT753x LED configuration

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This adds a small hack similar to the one used for ar8xxx switches to
read a reg:value map for configuring the LED configuration registers.

This allows OpenWrt to write device-specific LED action as well as blink
configurations. It is unlikely to be accepted upstream, as upstream
plans on integrating their own framework for handling these LEDs.

Signed-off-by: David Bauer <mail@david-bauer.net>
This commit is contained in:
David Bauer 2023-04-30 13:46:26 +02:00
parent 523c392fe6
commit 242fe8634e
1 changed files with 66 additions and 0 deletions
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66
target/linux/generic/hack-5.15/766-net-phy-mediatek-ge-add-LED-configuration-interface.patch Normal file
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@ -0,0 +1,66 @@
From cc225d163b5a4f7a0d1968298bf7927306646a47 Mon Sep 17 00:00:00 2001
From: David Bauer <mail@david-bauer.net>
Date: Fri, 28 Apr 2023 01:53:01 +0200
Subject: [PATCH] net: phy: mediatek-ge: add LED configuration interface
This adds a small hack similar to the one used for ar8xxx switches to
read a reg:value map for configuring the LED configuration registers.
This allows OpenWrt to write device-specific LED action as well as blink
configurations. It is unlikely to be accepted upstream, as upstream
plans on integrating their own framework for handling these LEDs.
Signed-off-by: David Bauer <mail@david-bauer.net>
---
drivers/net/phy/mediatek-ge.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
--- a/drivers/net/phy/mediatek-ge.c
+++ b/drivers/net/phy/mediatek-ge.c
@@ -53,6 +53,36 @@ static int mt7530_phy_config_init(struct
return 0;
}
+static int mt7530_led_config_of(struct phy_device *phydev)
+{
+ struct device_node *np = phydev->mdio.dev.of_node;
+ const __be32 *paddr;
+ int len;
+ int i;
+
+ paddr = of_get_property(np, "mediatek,led-config", &len);
+ if (!paddr)
+ return 0;
+
+ if (len < (2 * sizeof(*paddr)))
+ return -EINVAL;
+
+ len /= sizeof(*paddr);
+
+ phydev_warn(phydev, "Configure LED registers (num=%d)\n", len);
+ for (i = 0; i < len - 1; i += 2) {
+ u32 reg;
+ u32 val;
+
+ reg = be32_to_cpup(paddr + i);
+ val = be32_to_cpup(paddr + i + 1);
+
+ phy_write_mmd(phydev, MDIO_MMD_VEND2, reg, val);
+ }
+
+ return 0;
+}
+
static int mt7531_phy_config_init(struct phy_device *phydev)
{
mtk_gephy_config_init(phydev);
@@ -65,6 +95,9 @@ static int mt7531_phy_config_init(struct
phy_write_mmd(phydev, MDIO_MMD_VEND1, 0x13, 0x404);
phy_write_mmd(phydev, MDIO_MMD_VEND1, 0x14, 0x404);
+ /* LED Config*/
+ mt7530_led_config_of(phydev);
+
return 0;
}