target/linux/generic/backport-5.15/815-v6.4-08-net-phy-phy_device-Call-into-the-PHY-driver-to-set-L.patch

   1 From 4e901018432e38eab35d2a352661ce4727795be1 Mon Sep 17 00:00:00 2001
   2 From: Andrew Lunn <andrew@lunn.ch>
   3 Date: Mon, 17 Apr 2023 17:17:30 +0200
   4 Subject: [PATCH 8/9] net: phy: phy_device: Call into the PHY driver to set LED
   5  blinking
   6
   7 Linux LEDs can be requested to perform hardware accelerated
   8 blinking. Pass this to the PHY driver, if it implements the op.
   9
  10 Signed-off-by: Andrew Lunn <andrew@lunn.ch>
  11 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
  12 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  13 Signed-off-by: David S. Miller <davem@davemloft.net>
  14 ---
  15  drivers/net/phy/phy_device.c | 18 ++++++++++++++++++
  16  include/linux/phy.h          | 12 ++++++++++++
  17  2 files changed, 30 insertions(+)
  18
  19 --- a/drivers/net/phy/phy_device.c
  20 +++ b/drivers/net/phy/phy_device.c
  21 @@ -2959,6 +2959,22 @@ static int phy_led_set_brightness(struct
  22         return err;
  23  }
  24
  25 +static int phy_led_blink_set(struct led_classdev *led_cdev,
  26 +                            unsigned long *delay_on,
  27 +                            unsigned long *delay_off)
  28 +{
  29 +       struct phy_led *phyled = to_phy_led(led_cdev);
  30 +       struct phy_device *phydev = phyled->phydev;
  31 +       int err;
  32 +
  33 +       mutex_lock(&phydev->lock);
  34 +       err = phydev->drv->led_blink_set(phydev, phyled->index,
  35 +                                        delay_on, delay_off);
  36 +       mutex_unlock(&phydev->lock);
  37 +
  38 +       return err;
  39 +}
  40 +
  41  static int of_phy_led(struct phy_device *phydev,
  42                       struct device_node *led)
  43  {
  44 @@ -2981,6 +2997,8 @@ static int of_phy_led(struct phy_device
  45
  46         if (phydev->drv->led_brightness_set)
  47                 cdev->brightness_set_blocking = phy_led_set_brightness;
  48 +       if (phydev->drv->led_blink_set)
  49 +               cdev->blink_set = phy_led_blink_set;
  50         cdev->max_brightness = 1;
  51         init_data.devicename = dev_name(&phydev->mdio.dev);
  52         init_data.fwnode = of_fwnode_handle(led);
  53 --- a/include/linux/phy.h
  54 +++ b/include/linux/phy.h
  55 @@ -991,6 +991,18 @@ struct phy_driver {
  56          */
  57         int (*led_brightness_set)(struct phy_device *dev,
  58                                   u8 index, enum led_brightness value);
  59 +
  60 +       /**
  61 +        * @led_blink_set: Set a PHY LED brightness.  Index indicates
  62 +        * which of the PHYs led should be configured to blink. Delays
  63 +        * are in milliseconds and if both are zero then a sensible
  64 +        * default should be chosen.  The call should adjust the
  65 +        * timings in that case and if it can't match the values
  66 +        * specified exactly.
  67 +        */
  68 +       int (*led_blink_set)(struct phy_device *dev, u8 index,
  69 +                            unsigned long *delay_on,
  70 +                            unsigned long *delay_off);
  71  };
  72  #define to_phy_driver(d) container_of(to_mdio_common_driver(d),                \
  73                                       struct phy_driver, mdiodrv)