Merge tag 'leds-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
 "Updates:
   - Add optional GPIO enable pin support to PWM LED driver

  Fixes:
   - Allow LED module 0 to be added to module bank in lp50xx driver
   - Fix upboard LED driver module alias to ensure proper auto-loading
   - Update LP5009 to support 3 modules for a total of 9 LEDs
   - Skip LEDs without color components in cros_ec driver instead of
     failing probe
   - Fix GPIO descriptor leaks in netxbig error paths by releasing
     acquired GPIOs
   - Allow LED_COLOR_ID_MULTI in qcom-lpg driver for greater flexibility
   - Enable LP55XX common LED use without FW_LOADER_USER_HELPER
   - Ensure lp50xx chip is enabled before any I2C communication

  Cleanups:
   - Use fwnode_for_each_child_node() instead of
     fwnode_for_each_available_child_node() in LED drivers
   - Use device_get_next_child_node() instead of
     fwnode_get_next_available_child_node() in LED flash drivers
   - Replace sprintf() with sysfs_emit() in sysfs show functions for
     improved bounds checking
   - Replace system_wq() with system_percpu_wq() in the input event
     trigger
   - Reorder include files to alphabetic order in the PWM LED driver
   - Do not enable TRILED in qcom-lpg when configuring PWM
   - Drop duplicate LEDS_EXPRESSWIRE config from Kconfig

  Removals:
   - Remove arcxcnn_bl.txt Device Tree binding documentation

  Devicetree bindings:
   - Convert ArcticSand arc2c0608 LED driver binding to DT Schema
   - Add default-brightness property to common LED binding
   - Add enable-gpios property to PWM LED binding
   - Add PM7550 to qcom,spmi-flash-led compatible
   - Explain standalone PWM usage in qcom-lpg binding"

* tag 'leds-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (21 commits)
  leds: rgb: leds-qcom-lpg: Don't enable TRILED when configuring PWM
  dt-bindings: leds: qcom-lpg: Explain standalone PWM usage
  leds: rgb: leds-qcom-lpg: Allow LED_COLOR_ID_MULTI
  leds: pwm: Reorder include files to alphabetic order
  leds: pwm: Add optional GPIO enable pin support
  dt-bindings: leds: pwm: Add enable-gpios property
  leds: trigger: Replace use of system_wq() with system_percpu_wq()
  leds: led-class: Replace sprintf() with sysfs_emit() in sysfs show functions
  dt-bindings: leds: qcom,spmi-flash-led: Add PM7550
  leds: netxbig: Fix GPIO descriptor leak in error paths
  leds: leds-lp50xx: Enable chip before any communication
  leds: Drop duplicate LEDS_EXPRESSWIRE config
  leds: leds-cros_ec: Skip LEDs without color components
  leds: leds-lp50xx: LP5009 supports 3 modules for a total of 9 LEDs
  leds: upboard: Fix module alias
  leds: leds-lp50xx: Allow LED 0 to be added to module bank
  leds: lp55xx_common: Enable use without FW_LOADER_USER_HELPER
  dt-bindings: leds: Add default-brightness property to common.yaml
  leds: flash: Use fwnode_get_next_child_node() instead
  leds: Use fwnode_for_each_child_node() instead
  ...

Author: torvalds

Documentation/devicetree/bindings/leds/backlight/arc,arc2c0608.yaml

@@ -0,0 +1,108 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/backlight/arc,arc2c0608.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ArcticSand arc2c0608 LED driver
+
+description: |
+  The ArcticSand arc2c0608 LED driver provides ultra
+  efficient notebook backlighting. Optional properties not
+  specified will default to values in IC EPROM.
+
+  Datasheet:
+  https://www.murata.com/-/media/webrenewal/products/power/power-semiconductor/overview/lineup/led-boost/arc2/arc2c0608.ashx.
+
+maintainers:
+  - Brian Dodge <bdodge@arcticsand.com>
+
+allOf:
+  - $ref: /schemas/leds/common.yaml
+
+properties:
+  compatible:
+    const: arc,arc2c0608
+
+  reg:
+    maxItems: 1
+
+  default-brightness:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 4095
+
+  led-sources:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description: List of enabled channels
+    items:
+      enum: [0, 1, 2, 3, 4, 5]
+    minItems: 1
+    uniqueItems: true
+
+  arc,led-config-0:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Fading speed (period between intensity
+      steps)
+
+  arc,led-config-1:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: If set, sets ILED_CONFIG register. Used for
+      fine tuning the maximum LED current.
+
+  arc,dim-freq:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: PWM mode frequency setting (bits [3:0] used)
+
+  arc,comp-config:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Setting for register CONFIG_COMP which
+      controls internal resitances, feed forward freqs,
+      and initial VOUT at startup. Consult the datasheet.
+
+  arc,filter-config:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: RC and PWM Filter settings.
+      Bit Assignment
+      7654 3    2    1    0
+      xxxx RCF1 RCF0 PWM1 PWM0
+      RCF statuses        PWM Filter Statues
+      00 = OFF (default)  00 = OFF (default)
+      01 = LOW            01 = 2 STEPS
+      10 - MEDIUM         10 = 4 STEPS
+      11 = HIGH           11 = 8 STEPS
+
+  arc,trim-config:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Sets percentage increase of Maximum LED
+      Current.
+      0x00 = 0% increase.
+      0x20 = 20.2%.
+      0x3F = 41.5%
+
+  label: true
+
+  linux,default-trigger: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led-controller@30 {
+            compatible = "arc,arc2c0608";
+            reg = <0x30>;
+            default-brightness = <500>;
+            label = "lcd-backlight";
+            linux,default-trigger = "backlight";
+            led-sources = <0 1 2 5>;
+        };
+    };
+...

Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt

@@ -173,6 +173,12 @@ properties:
       led-max-microamp.
     $ref: /schemas/types.yaml#/definitions/uint32
 
+  default-brightness:
+    description:
+      Brightness to be set if LED's default state is on. Used only during
+      initialization. If the option is not set then max brightness is used.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
   panic-indicator:
     description:
       This property specifies that the LED should be used, if at all possible,

Documentation/devicetree/bindings/leds/common.yaml

@@ -40,6 +40,13 @@ patternProperties:
           initialization. If the option is not set then max brightness is used.
         $ref: /schemas/types.yaml#/definitions/uint32
 
+      enable-gpios:
+        description:
+          GPIO for LED hardware enable control. Set active when brightness is
+          non-zero and inactive when brightness is zero.
+          The GPIO default state follows the "default-state" property.
+        maxItems: 1
+
     required:
       - pwms
       - max-brightness

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

@@ -13,6 +13,11 @@ description: >
   The Qualcomm Light Pulse Generator consists of three different hardware blocks;
   a ramp generator with lookup table (LUT), the light pulse generator and a three
   channel current sink. These blocks are found in a wide range of Qualcomm PMICs.
+  The light pulse generator (LPG) can also be used independently to output PWM
+  signal for standard PWM applications. In this scenario, the LPG output should
+  be routed to a specific PMIC GPIO by setting the GPIO pin mux to the special
+  functions indicated in the datasheet, the TRILED driver for the channel will
+  not be enabled in this configuration.
 
 properties:
   compatible:

Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml

@@ -24,6 +24,7 @@ properties:
       - enum:
           - qcom,pm6150l-flash-led
           - qcom,pm660l-flash-led
+          - qcom,pm7550-flash-led
           - qcom,pm8150c-flash-led
           - qcom,pm8150l-flash-led
           - qcom,pm8350c-flash-led

Documentation/devicetree/bindings/leds/qcom,spmi-flash-led.yaml

@@ -22,7 +22,7 @@ More details of the instructions can be found from the public data sheet.
 LP5521 has the internal program memory for running various LED patterns.
 There are two ways to run LED patterns.
 
-1) Legacy interface - enginex_mode and enginex_load
+1) sysfs interface - enginex_mode and enginex_load
    Control interface for the engines:
 
    x is 1 .. 3

Documentation/leds/leds-lp5521.rst

@@ -35,7 +35,7 @@ If both fields are NULL, 'lp5523' is used by default.
 LP5523 has the internal program memory for running various LED patterns.
 There are two ways to run LED patterns.
 
-1) Legacy interface - enginex_mode, enginex_load and enginex_leds
+1) sysfs interface - enginex_mode, enginex_load and enginex_leds
 
   Control interface for the engines:
 

Documentation/leds/leds-lp5523.rst

@@ -214,10 +214,6 @@ config LEDS_EL15203000
 	  To compile this driver as a module, choose M here: the module
 	  will be called leds-el15203000.
 
-config LEDS_EXPRESSWIRE
-	bool
-	depends on GPIOLIB
-
 config LEDS_TURRIS_OMNIA
 	tristate "LED support for CZ.NIC's Turris Omnia"
 	depends on LEDS_CLASS_MULTICOLOR
@@ -443,8 +439,8 @@ config LEDS_LP55XX_COMMON
 	depends on LEDS_CLASS_MULTICOLOR
 	depends on OF
 	depends on I2C
-	select FW_LOADER
-	select FW_LOADER_USER_HELPER
+	imply FW_LOADER
+	imply FW_LOADER_USER_HELPER
 	help
 	  This option supports common operations for LP5521/5523/55231/5562/5569/
 	  8501 devices.

drivers/leds/Kconfig

@@ -365,7 +365,7 @@ static int rt4505_probe(struct i2c_client *client)
 		return ret;
 	}
 
-	child = fwnode_get_next_available_child_node(client->dev.fwnode, NULL);
+	child = device_get_next_child_node(&client->dev, NULL);
 	if (!child) {
 		dev_err(priv->dev, "Failed to get child node\n");
 		return -EINVAL;