target/linux/bcm27xx/patches-6.1/950-0914-net-phy-broadcom-optionally-enable-link-down-powersa.patch

   1 From 6370a6cd16a5aa9726bf209c0f0a3179f4011cb1 Mon Sep 17 00:00:00 2001
   2 From: Jonathan Bell <jonathan@raspberrypi.com>
   3 Date: Mon, 22 May 2023 15:31:17 +0100
   4 Subject: [PATCH] net: phy: broadcom: optionally enable link-down powersave
   5  based on DT
   6
   7 It's really a function of the board whether or not to use this feature
   8 as it may require MAC compatibility as well as interop testing.
   9
  10 Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
  11 ---
  12  drivers/net/phy/broadcom.c | 3 +++
  13  1 file changed, 3 insertions(+)
  14
  15 --- a/drivers/net/phy/broadcom.c
  16 +++ b/drivers/net/phy/broadcom.c
  17 @@ -370,6 +370,9 @@ static int bcm54xx_config_init(struct ph
  18             (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
  19                 bcm_phy_write_shadow(phydev, BCM54XX_SHD_RGMII_MODE, 0);
  20
  21 +       if (of_property_read_bool(np, "brcm,powerdown-enable"))
  22 +               phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
  23 +
  24         bcm54xx_adjust_rxrefclk(phydev);
  25
  26         switch (BRCM_PHY_MODEL(phydev)) {