Merge tag 'leds-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
 "New Drivers:
   - Add support for Allwinner A100 RGB LED controller
   - Add support for Maxim 5970 Dual Hot-swap controller

  New Device Support:
   - Add support for AW20108 to Awinic LED driver

  New Functionality:
   - Extend support for Net speeds to include; 2.5G, 5G and 10G
   - Allow tx/rx and cts/dsr/dcd/rng TTY LEDS to be turned on and off
     via sysfs if required
   - Add support for hardware control in AW200xx

  Fix-ups:
   - Use safer methods for string handling
   - Improve error handling; return proper error values, simplify,
     avoid duplicates, etc
   - Replace Mutex use with the Completion mechanism
   - Fix include lists; alphabetise, remove unused, explicitly add used
   - Use generic platform device properties
   - Use/convert to new/better APIs/helpers/MACROs instead of
     hand-rolling implementations
   - Device Tree binding adaptions/conversions/creation
   - Continue work to remove superfluous platform .remove() call-backs
   - Remove superfluous/defunct code
   - Trivial; whitespace, unused variables, spelling, clean-ups, etc
   - Avoid unnecessary duplicate locks

  Bug Fixes:
   - Repair Kconfig based dependency lists
   - Ensure unused dynamically allocated data is freed after use
   - Fix support for brightness control
   - Add missing sufficient delays during reset to ensure correct
     operation
   - Avoid division-by-zero issues"

* tag 'leds-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (45 commits)
  leds: trigger: netdev: Add core support for hw not supporting fallback to LED sw control
  leds: trigger: panic: Don't register panic notifier if creating the trigger failed
  leds: sun50i-a100: Convert to be agnostic to property provider
  leds: max5970: Add missing headers
  leds: max5970: Make use of dev_err_probe()
  leds: max5970: Make use of device properties
  leds: max5970: Remove unused variable
  leds: rgb: Drop obsolete dependency on COMPILE_TEST
  leds: sun50i-a100: Avoid division-by-zero warning
  leds: trigger: Remove unused function led_trigger_rename_static()
  leds: qcom-lpg: Introduce a wrapper for getting driver data from a pwm chip
  leds: gpio: Add kernel log if devm_fwnode_gpiod_get() fails
  dt-bindings: leds: qcom,spmi-flash-led: Fix example node name
  dt-bindings: leds: aw200xx: Fix led pattern and add reg constraints
  dt-bindings: leds: awinic,aw200xx: Add AW20108 device
  leds: aw200xx: Add support for aw20108 device
  leds: aw200xx: Improve autodim calculation method
  leds: aw200xx: Enable disable_locking flag in regmap config
  leds: aw200xx: Add delay after software reset
  dt-bindings: leds: aw200xx: Remove property "awinic,display-rows"
  ...

Author: torvalds

Documentation/ABI/testing/sysfs-class-led-trigger-netdev

@@ -114,6 +114,45 @@ Description:
 		speed of 1000Mbps of the named network device.
 		Setting this value also immediately changes the LED state.
 
+What:		/sys/class/leds/<led>/link_2500
+Date:		Nov 2023
+KernelVersion:	6.8
+Contact:	linux-leds@vger.kernel.org
+Description:
+		Signal the link speed state of 2500Mbps of the named network device.
+
+		If set to 0 (default), the LED's normal state is off.
+
+		If set to 1, the LED's normal state reflects the link state
+		speed of 2500Mbps of the named network device.
+		Setting this value also immediately changes the LED state.
+
+What:		/sys/class/leds/<led>/link_5000
+Date:		Nov 2023
+KernelVersion:	6.8
+Contact:	linux-leds@vger.kernel.org
+Description:
+		Signal the link speed state of 5000Mbps of the named network device.
+
+		If set to 0 (default), the LED's normal state is off.
+
+		If set to 1, the LED's normal state reflects the link state
+		speed of 5000Mbps of the named network device.
+		Setting this value also immediately changes the LED state.
+
+What:		/sys/class/leds/<led>/link_10000
+Date:		Nov 2023
+KernelVersion:	6.8
+Contact:	linux-leds@vger.kernel.org
+Description:
+		Signal the link speed state of 10000Mbps of the named network device.
+
+		If set to 0 (default), the LED's normal state is off.
+
+		If set to 1, the LED's normal state reflects the link state
+		speed of 10000Mbps of the named network device.
+		Setting this value also immediately changes the LED state.
+
 What:		/sys/class/leds/<led>/half_duplex
 Date:		Jun 2023
 KernelVersion:	6.5

Documentation/ABI/testing/sysfs-class-led-trigger-tty

@@ -4,3 +4,59 @@ KernelVersion:	5.10
 Contact:	linux-leds@vger.kernel.org
 Description:
 		Specifies the tty device name of the triggering tty
+
+What:		/sys/class/leds/<led>/rx
+Date:		February 2024
+KernelVersion:	6.8
+Description:
+		Signal reception (rx) of data on the named tty device.
+		If set to 0, the LED will not blink on reception.
+		If set to 1 (default), the LED will blink on reception.
+
+What:		/sys/class/leds/<led>/tx
+Date:		February 2024
+KernelVersion:	6.8
+Description:
+		Signal transmission (tx) of data on the named tty device.
+		If set to 0, the LED will not blink on transmission.
+		If set to 1 (default), the LED will blink on transmission.
+
+What:		/sys/class/leds/<led>/cts
+Date:		February 2024
+KernelVersion:	6.8
+Description:
+		CTS = Clear To Send
+		DCE is ready to accept data from the DTE.
+		If the line state is detected, the LED is switched on.
+		If set to 0 (default), the LED will not evaluate CTS.
+		If set to 1, the LED will evaluate CTS.
+
+What:		/sys/class/leds/<led>/dsr
+Date:		February 2024
+KernelVersion:	6.8
+Description:
+		DSR = Data Set Ready
+		DCE is ready to receive and send data.
+		If the line state is detected, the LED is switched on.
+		If set to 0 (default), the LED will not evaluate DSR.
+		If set to 1, the LED will evaluate DSR.
+
+What:		/sys/class/leds/<led>/dcd
+Date:		February 2024
+KernelVersion:	6.8
+Description:
+		DCD = Data Carrier Detect
+		DTE is receiving a carrier from the DCE.
+		If the line state is detected, the LED is switched on.
+		If set to 0 (default), the LED will not evaluate CAR (DCD).
+		If set to 1, the LED will evaluate CAR (DCD).
+
+What:		/sys/class/leds/<led>/rng
+Date:		February 2024
+KernelVersion:	6.8
+Description:
+		RNG = Ring Indicator
+		DCE has detected an incoming ring signal on the telephone
+		line. If the line state is detected, the LED is switched on.
+		If set to 0 (default), the LED will not evaluate RNG.
+		If set to 1, the LED will evaluate RNG.

Documentation/devicetree/bindings/leds/allwinner,sun50i-a100-ledc.yaml

@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/allwinner,sun50i-a100-ledc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A100 LED Controller
+
+maintainers:
+  - Samuel Holland <samuel@sholland.org>
+
+description:
+  The LED controller found in Allwinner sunxi SoCs uses a one-wire serial
+  interface to drive up to 1024 RGB LEDs.
+
+properties:
+  compatible:
+    oneOf:
+      - const: allwinner,sun50i-a100-ledc
+      - items:
+          - enum:
+              - allwinner,sun20i-d1-ledc
+              - allwinner,sun50i-r329-ledc
+          - const: allwinner,sun50i-a100-ledc
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Bus clock
+      - description: Module clock
+
+  clock-names:
+    items:
+      - const: bus
+      - const: mod
+
+  resets:
+    maxItems: 1
+
+  dmas:
+    maxItems: 1
+    description: TX DMA channel
+
+  dma-names:
+    const: tx
+
+  allwinner,pixel-format:
+    description: Pixel format (subpixel transmission order), default is "grb"
+    enum:
+      - bgr
+      - brg
+      - gbr
+      - grb
+      - rbg
+      - rgb
+
+  allwinner,t0h-ns:
+    default: 336
+    description: Length of high pulse when transmitting a "0" bit
+
+  allwinner,t0l-ns:
+    default: 840
+    description: Length of low pulse when transmitting a "0" bit
+
+  allwinner,t1h-ns:
+    default: 882
+    description: Length of high pulse when transmitting a "1" bit
+
+  allwinner,t1l-ns:
+    default: 294
+    description: Length of low pulse when transmitting a "1" bit
+
+  allwinner,treset-ns:
+    default: 300000
+    description: Minimum delay between transmission frames
+
+patternProperties:
+  "^multi-led@[0-9a-f]+$":
+    type: object
+    $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
+    properties:
+      reg:
+        minimum: 0
+        maximum: 1023
+        description: Index of the LED in the series (must be contiguous)
+
+    required:
+      - reg
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/leds/common.h>
+
+    ledc: led-controller@2008000 {
+      compatible = "allwinner,sun20i-d1-ledc",
+                   "allwinner,sun50i-a100-ledc";
+      reg = <0x2008000 0x400>;
+      interrupts = <36 IRQ_TYPE_LEVEL_HIGH>;
+      clocks = <&ccu 12>, <&ccu 34>;
+      clock-names = "bus", "mod";
+      resets = <&ccu 12>;
+      dmas = <&dma 42>;
+      dma-names = "tx";
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      multi-led@0 {
+        reg = <0x0>;
+        color = <LED_COLOR_ID_RGB>;
+        function = LED_FUNCTION_INDICATOR;
+      };
+    };
+
+...

Documentation/devicetree/bindings/leds/awinic,aw200xx.yaml

@@ -10,22 +10,27 @@ maintainers:
   - Martin Kurbanov <mmkurbanov@sberdevices.ru>
 
 description: |
-  This controller is present on AW20036/AW20054/AW20072.
-  It is a 3x12/6x9/6x12 matrix LED programmed via
-  an I2C interface, up to 36/54/72 LEDs or 12/18/24 RGBs,
-  3 pattern controllers for auto breathing or group dimming control.
+  It is a matrix LED driver programmed via an I2C interface. Devices have
+  a set of individually controlled leds and support 3 pattern controllers
+  for auto breathing or group dimming control. Supported devices:
+    - AW20036 (3x12) 36 LEDs
+    - AW20054 (6x9)  54 LEDs
+    - AW20072 (6x12) 72 LEDs
+    - AW20108 (9x12) 108 LEDs
 
   For more product information please see the link below:
   aw20036 - https://www.awinic.com/en/productDetail/AW20036QNR#tech-docs
   aw20054 - https://www.awinic.com/en/productDetail/AW20054QNR#tech-docs
   aw20072 - https://www.awinic.com/en/productDetail/AW20072QNR#tech-docs
+  aw20108 - https://www.awinic.com/en/productDetail/AW20108QNR#tech-docs
 
 properties:
   compatible:
     enum:
       - awinic,aw20036
       - awinic,aw20054
       - awinic,aw20072
+      - awinic,aw20108
 
   reg:
     maxItems: 1
@@ -36,13 +41,11 @@ properties:
   "#size-cells":
     const: 0
 
-  awinic,display-rows:
-    $ref: /schemas/types.yaml#/definitions/uint32
-    description:
-      Leds matrix size
+  enable-gpios:
+    maxItems: 1
 
 patternProperties:
-  "^led@[0-9a-f]$":
+  "^led@[0-9a-f]+$":
     type: object
     $ref: common.yaml#
     unevaluatedProperties: false
@@ -60,16 +63,11 @@ patternProperties:
           since the chip has a single global setting.
           The maximum output current of each LED is calculated by the
           following formula:
-            IMAXled = 160000 * (592 / 600.5) * (1 / display-rows)
+            IMAXled = 160000 * (592 / 600.5) * (1 / max-current-switch-number)
           And the minimum output current formula:
-            IMINled = 3300 * (592 / 600.5) * (1 / display-rows)
-
-required:
-  - compatible
-  - reg
-  - "#address-cells"
-  - "#size-cells"
-  - awinic,display-rows
+            IMINled = 3300 * (592 / 600.5) * (1 / max-current-switch-number)
+          where max-current-switch-number is determinated by led configuration
+          and depends on how leds are physically connected to the led driver.
 
 allOf:
   - if:
@@ -78,18 +76,67 @@ allOf:
           contains:
             const: awinic,aw20036
     then:
+      patternProperties:
+        "^led@[0-9a-f]+$":
+          properties:
+            reg:
+              items:
+                minimum: 0
+                maximum: 36
+
+  - if:
       properties:
-        awinic,display-rows:
-          enum: [1, 2, 3]
-    else:
+        compatible:
+          contains:
+            const: awinic,aw20054
+    then:
+      patternProperties:
+        "^led@[0-9a-f]+$":
+          properties:
+            reg:
+              items:
+                minimum: 0
+                maximum: 54
+
+  - if:
       properties:
-        awinic,display-rows:
-          enum: [1, 2, 3, 4, 5, 6, 7]
+        compatible:
+          contains:
+            const: awinic,aw20072
+    then:
+      patternProperties:
+        "^led@[0-9a-f]+$":
+          properties:
+            reg:
+              items:
+                minimum: 0
+                maximum: 72
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: awinic,aw20108
+    then:
+      patternProperties:
+        "^led@[0-9a-f]+$":
+          properties:
+            reg:
+              items:
+                minimum: 0
+                maximum: 108
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
 
 additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/gpio/gpio.h>
     #include <dt-bindings/leds/common.h>
 
     i2c {
@@ -101,7 +148,7 @@ examples:
             reg = <0x3a>;
             #address-cells = <1>;
             #size-cells = <0>;
-            awinic,display-rows = <3>;
+            enable-gpios = <&gpio 3 GPIO_ACTIVE_HIGH>;
 
             led@0 {
                 reg = <0x0>;