target/linux/generic/backport-6.1/801-v6.4-07-net-phy-marvell-Add-software-control-of-the-LEDs.patch

   1 From 2d3960e58ef7c83fe1dbf952f056b9e906cb6df8 Mon Sep 17 00:00:00 2001
   2 From: Andrew Lunn <andrew@lunn.ch>
   3 Date: Mon, 17 Apr 2023 17:17:29 +0200
   4 Subject: [PATCH 7/9] net: phy: marvell: Add software control of the LEDs
   5
   6 Add a brightness function, so the LEDs can be controlled from
   7 software using the standard Linux LED infrastructure.
   8
   9 Signed-off-by: Andrew Lunn <andrew@lunn.ch>
  10 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
  11 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  12 Signed-off-by: David S. Miller <davem@davemloft.net>
  13 ---
  14  drivers/net/phy/marvell.c | 45 ++++++++++++++++++++++++++++++++++-----
  15  1 file changed, 40 insertions(+), 5 deletions(-)
  16
  17 --- a/drivers/net/phy/marvell.c
  18 +++ b/drivers/net/phy/marvell.c
  19 @@ -144,11 +144,13 @@
  20  /* WOL Event Interrupt Enable */
  21  #define MII_88E1318S_PHY_CSIER_WOL_EIE                 BIT(7)
  22
  23 -/* LED Timer Control Register */
  24 -#define MII_88E1318S_PHY_LED_TCR                       0x12
  25 -#define MII_88E1318S_PHY_LED_TCR_FORCE_INT             BIT(15)
  26 -#define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE           BIT(7)
  27 -#define MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW                BIT(11)
  28 +#define MII_88E1318S_PHY_LED_FUNC              0x10
  29 +#define MII_88E1318S_PHY_LED_FUNC_OFF          (0x8)
  30 +#define MII_88E1318S_PHY_LED_FUNC_ON           (0x9)
  31 +#define MII_88E1318S_PHY_LED_TCR               0x12
  32 +#define MII_88E1318S_PHY_LED_TCR_FORCE_INT     BIT(15)
  33 +#define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE   BIT(7)
  34 +#define MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW        BIT(11)
  35
  36  /* Magic Packet MAC address registers */
  37  #define MII_88E1318S_PHY_MAGIC_PACKET_WORD2            0x17
  38 @@ -2832,6 +2834,34 @@ static int marvell_hwmon_probe(struct ph
  39  }
  40  #endif
  41
  42 +static int m88e1318_led_brightness_set(struct phy_device *phydev,
  43 +                                      u8 index, enum led_brightness value)
  44 +{
  45 +       int reg;
  46 +
  47 +       reg = phy_read_paged(phydev, MII_MARVELL_LED_PAGE,
  48 +                            MII_88E1318S_PHY_LED_FUNC);
  49 +       if (reg < 0)
  50 +               return reg;
  51 +
  52 +       switch (index) {
  53 +       case 0:
  54 +       case 1:
  55 +       case 2:
  56 +               reg &= ~(0xf << (4 * index));
  57 +               if (value == LED_OFF)
  58 +                       reg |= MII_88E1318S_PHY_LED_FUNC_OFF << (4 * index);
  59 +               else
  60 +                       reg |= MII_88E1318S_PHY_LED_FUNC_ON << (4 * index);
  61 +               break;
  62 +       default:
  63 +               return -EINVAL;
  64 +       }
  65 +
  66 +       return phy_write_paged(phydev, MII_MARVELL_LED_PAGE,
  67 +                              MII_88E1318S_PHY_LED_FUNC, reg);
  68 +}
  69 +
  70  static int marvell_probe(struct phy_device *phydev)
  71  {
  72         struct marvell_priv *priv;
  73 @@ -3081,6 +3111,7 @@ static struct phy_driver marvell_drivers
  74                 .get_sset_count = marvell_get_sset_count,
  75                 .get_strings = marvell_get_strings,
  76                 .get_stats = marvell_get_stats,
  77 +               .led_brightness_set = m88e1318_led_brightness_set,
  78         },
  79         {
  80                 .phy_id = MARVELL_PHY_ID_88E1145,
  81 @@ -3187,6 +3218,7 @@ static struct phy_driver marvell_drivers
  82                 .cable_test_start = marvell_vct7_cable_test_start,
  83                 .cable_test_tdr_start = marvell_vct5_cable_test_tdr_start,
  84                 .cable_test_get_status = marvell_vct7_cable_test_get_status,
  85 +               .led_brightness_set = m88e1318_led_brightness_set,
  86         },
  87         {
  88                 .phy_id = MARVELL_PHY_ID_88E1540,
  89 @@ -3213,6 +3245,7 @@ static struct phy_driver marvell_drivers
  90                 .cable_test_start = marvell_vct7_cable_test_start,
  91                 .cable_test_tdr_start = marvell_vct5_cable_test_tdr_start,
  92                 .cable_test_get_status = marvell_vct7_cable_test_get_status,
  93 +               .led_brightness_set = m88e1318_led_brightness_set,
  94         },
  95         {
  96                 .phy_id = MARVELL_PHY_ID_88E1545,
  97 @@ -3239,6 +3272,7 @@ static struct phy_driver marvell_drivers
  98                 .cable_test_start = marvell_vct7_cable_test_start,
  99                 .cable_test_tdr_start = marvell_vct5_cable_test_tdr_start,
 100                 .cable_test_get_status = marvell_vct7_cable_test_get_status,
 101 +               .led_brightness_set = m88e1318_led_brightness_set,
 102         },
 103         {
 104                 .phy_id = MARVELL_PHY_ID_88E3016,
 105 @@ -3380,6 +3414,7 @@ static struct phy_driver marvell_drivers
 106                 .get_stats = marvell_get_stats,
 107                 .get_tunable = m88e1540_get_tunable,
 108                 .set_tunable = m88e1540_set_tunable,
 109 +               .led_brightness_set = m88e1318_led_brightness_set,
 110         },
 111  };
 112