target/linux/bcm27xx/patches-6.1/950-0531-net-phy-broadcom-Make-LEDs-3-4-shadow-LEDs-1-2.patch

   1 From 72f813551de816215429cae538359371730ade97 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Tue, 3 Jan 2023 16:00:21 +0000
   4 Subject: [PATCH] net: phy: broadcom: Make LEDs 3+4 shadow LEDs 1+2
   5
   6 CM4 uses BCM54210PE, which supports 2 additional LEDs, choosing LED3
   7 for the amber LED because it shows activity by default (LED4 is not
   8 connected). However, this makes it uncontrollable by the eth_led<n>
   9 dtparams which target LEDs 1+2.
  10
  11 Solve the problem by making LEDs 3+4 mirror LEDs 1+2 (which is much
  12 simpler than adding baseboard-specific overrides, but comes with a
  13 risk of making one of the LEDs redundant).
  14
  15 See: https://github.com/raspberrypi/linux/issues/5289
  16
  17 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  18 ---
  19  drivers/net/phy/broadcom.c | 5 +++++
  20  1 file changed, 5 insertions(+)
  21
  22 --- a/drivers/net/phy/broadcom.c
  23 +++ b/drivers/net/phy/broadcom.c
  24 @@ -416,6 +416,11 @@ static int bcm54xx_config_init(struct ph
  25                 val = BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) |
  26                         BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1);
  27                 bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val);
  28 +               /* BCM54210PE controls two extra LEDs with the next register.
  29 +                * Make them shadow the first pair of LEDs - useful on CM4 which
  30 +                * uses LED3 for ETH_LEDY instead of LED1.
  31 +                */
  32 +               bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1 + 1, val);
  33
  34                 val = BCM_LED_MULTICOLOR_IN_PHASE |
  35                         BCM5482_SHD_LEDS1_LED1(led_modes[0]) |