target/linux/generic/backport-5.15/815-v6.4-04-leds-Provide-stubs-for-when-CLASS_LED-NEW_LEDS-are-d.patch

   1 From e5029edd53937a29801ef507cee12e657ff31ea9 Mon Sep 17 00:00:00 2001
   2 From: Andrew Lunn <andrew@lunn.ch>
   3 Date: Mon, 17 Apr 2023 17:17:26 +0200
   4 Subject: [PATCH 4/9] leds: Provide stubs for when CLASS_LED & NEW_LEDS are
   5  disabled
   6
   7 Provide stubs for devm_led_classdev_register_ext() and
   8 led_init_default_state_get() so that LED drivers embedded within other
   9 drivers such as PHYs and Ethernet switches still build when LEDS_CLASS
  10 or NEW_LEDS are disabled. This also helps with Kconfig dependencies,
  11 which are somewhat hairy for phylib and mdio and only get worse when
  12 adding a dependency on LED_CLASS.
  13
  14 Signed-off-by: Andrew Lunn <andrew@lunn.ch>
  15 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
  16 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  17 Signed-off-by: David S. Miller <davem@davemloft.net>
  18 ---
  19  include/linux/leds.h | 18 ++++++++++++++++++
  20  1 file changed, 18 insertions(+)
  21
  22 --- a/include/linux/leds.h
  23 +++ b/include/linux/leds.h
  24 @@ -63,7 +63,15 @@ struct led_init_data {
  25         bool devname_mandatory;
  26  };
  27
  28 +#if IS_ENABLED(CONFIG_NEW_LEDS)
  29  enum led_default_state led_init_default_state_get(struct fwnode_handle *fwnode);
  30 +#else
  31 +static inline enum led_default_state
  32 +led_init_default_state_get(struct fwnode_handle *fwnode)
  33 +{
  34 +       return LEDS_DEFSTATE_OFF;
  35 +}
  36 +#endif
  37
  38  struct led_hw_trigger_type {
  39         int dummy;
  40 @@ -198,9 +206,19 @@ static inline int led_classdev_register(
  41         return led_classdev_register_ext(parent, led_cdev, NULL);
  42  }
  43
  44 +#if IS_ENABLED(CONFIG_LEDS_CLASS)
  45  int devm_led_classdev_register_ext(struct device *parent,
  46                                           struct led_classdev *led_cdev,
  47                                           struct led_init_data *init_data);
  48 +#else
  49 +static inline int
  50 +devm_led_classdev_register_ext(struct device *parent,
  51 +                              struct led_classdev *led_cdev,
  52 +                              struct led_init_data *init_data)
  53 +{
  54 +       return 0;
  55 +}
  56 +#endif
  57
  58  static inline int devm_led_classdev_register(struct device *parent,
  59                                              struct led_classdev *led_cdev)