Merge tag 'leds-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds

Pull LED updates from Pavel Machek:
 "Besides the usual fixes and new drivers, we are changing CLASS_FLASH
  to return success to make it easier to work with V4L2 stuff disabled,
  and we are getting rid of enum that should have been plain integer
  long time ago. I'm slightly nervous about potential warnings, but it
  needed to be fixed at some point"

* tag 'leds-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
  leds: lp50xx: Get rid of redundant explicit casting
  leds: lp50xx: Update headers block to reflect reality
  leds: lp50xx: Get rid of redundant check in lp50xx_enable_disable()
  leds: lp50xx: Reduce level of dereferences
  leds: lp50xx: Switch to new style i2c-driver probe function
  leds: lp50xx: Don't spam logs when probe is deferred
  leds: apu: extend support for PC Engines APU1 with newer firmware
  leds: flash: Fix multicolor no-ops registration by return 0
  leds: flash: Add flash registration with undefined CONFIG_LEDS_CLASS_FLASH
  leds: lgm: Add LED controller driver for LGM SoC
  dt-bindings: leds: Add bindings for Intel LGM SoC
  leds: led-core: Get rid of enum led_brightness
  leds: gpio: Set max brightness to 1
  leds: lm3533: Switch to using the new API kobj_to_dev()
  leds: ss4200: simplify the return expression of register_nasgpio_led()
  leds: Use DEVICE_ATTR_{RW, RO, WO} macros

Documentation/devicetree/bindings/leds/leds-lgm.yaml

@@ -0,0 +1,113 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-lgm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel Lightning Mountain (LGM) SoC LED Serial Shift Output (SSO) Controller driver
+
+maintainers:
+  - Zhu, Yi Xin <Yixin.zhu@intel.com>
+  - Amireddy Mallikarjuna reddy <mallikarjunax.reddy@intel.com>
+
+properties:
+  compatible:
+    const: intel,lgm-ssoled
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+  ngpios:
+    minimum: 0
+    maximum: 32
+    description:
+      Number of GPIOs this controller provides.
+
+  intel,sso-update-rate-hz:
+    description:
+      Blink frequency for SOUTs in Hz.
+
+  led-controller:
+    type: object
+    description:
+      This sub-node must contain a sub-node for each leds.
+
+    additionalProperties: false
+
+    patternProperties:
+      "^led@[0-23]$":
+        type: object
+
+        properties:
+          reg:
+            description: Index of the LED.
+            minimum: 0
+            maximum: 2
+
+          intel,sso-hw-trigger:
+            type: boolean
+            description: This property indicates Hardware driven/control LED.
+
+          intel,sso-hw-blink:
+            type: boolean
+            description: This property indicates Enable LED blink by Hardware.
+
+          intel,sso-blink-rate-hz:
+            description: LED HW blink frequency.
+
+          retain-state-suspended:
+            type: boolean
+            description: The suspend state of LED can be retained.
+
+          retain-state-shutdown:
+            type: boolean
+            description: Retain the state of the LED on shutdown.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - "#gpio-cells"
+  - gpio-controller
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/intel,lgm-clk.h>
+    #include <dt-bindings/leds/common.h>
+
+    ssogpio: ssogpio@e0d40000 {
+      compatible = "intel,sso-led";
+      reg = <0xE0D40000 0x2E4>;
+      gpio-controller;
+      #gpio-cells = <2>;
+      ngpios = <32>;
+      pinctrl-names = "default";
+      pinctrl-0 = <&pinctrl_ledc>;
+      clocks = <&cgu0 LGM_GCLK_LEDC0>, <&afeclk>;
+      clock-names = "sso", "fpid";
+      intel,sso-update-rate-hz = <250000>;
+
+      led-controller {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led@0 {
+          reg = <0>;
+          function = "gphy";
+          color = <LED_COLOR_ID_GREEN>;
+          led-gpio = <&ssogpio 0 0>;
+        };
+
+        led@23 {
+          reg = <23>;
+          function = LED_FUNCTION_POWER;
+          color = <LED_COLOR_ID_GREEN>;
+          led-gpio = <&ssogpio 23 0>;
+        };
+      };
+    };