Merge tag 'backlight-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "New Drivers:
   - Add support for Kinetic KTZ8866 Backlight

  Removed Drivers:
   - Toshiba Sharp SL-6000 LCD and Backlight

  Fix-ups:
   - Provide some profiling optimisations with respect to
     pwm_get_state() and pwm_apply_state()
   - Make use of the dev_err_probe() API
   - Provide some Device Tree documentation additions / adaptions
   - Drop fall-back legacy PWM probing support
   - Convert over to new I2C probing API
   - Fix incorrect documentation
   - Make use of backlight_get_brightness() API

  Bug Fixes:
   - Fix disabling backlight on i.MX6 when inverted PWMs are used"

* tag 'backlight-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: ktz8866: Convert to i2c's .probe_new()
  backlight: ktz8866: Add support for Kinetic KTZ8866 backlight
  dt-bindings: leds: backlight: Add Kinetic KTZ8866 backlight
  backlight: pwm_bl: Don't rely on a disabled PWM emiting inactive state
  backlight: pwm_bl: Configure pwm only once per backlight toggle
  backlight: Remove pxa tosa support
  backlight: aat2870: Use backlight helper
  backlight: ipaq_micro: Use backlight helper
  backlight: arcxcnn: Use backlight helper
  backlight: sky81452: Fix sky81452_bl_platform_data kernel-doc
  backlight: pwm_bl: Drop support for legacy PWM probing
  dt-bindings: backlight: qcom-wled: Add PMI8950 compatible
  backlight: ktd253: Switch to use dev_err_probe() helper
  backlight: backlight: Fix doc for backlight_device_get_by_name

2 files changed, 77 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml
new file mode 100644
index 000000000000..e1191453c2f0
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/backlight/kinetic,ktz8866.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Kinetic Technologies KTZ8866 backlight
+
+maintainers:
+  - Jianhua Lu <lujianhua000@gmail.com>
+
+description: |
+  The Kinetic Technologies KTZ8866 is a high efficiency 6-channels-current-sinks
+  led backlight with dual lcd bias power.
+  https://www.kinet-ic.com/ktz8866/
+
+allOf:
+  - $ref: common.yaml#
+
+properties:
+  compatible:
+    const: kinetic,ktz8866
+
+  vddpos-supply:
+    description: positive boost supply regulator.
+
+  vddneg-supply:
+    description: negative boost supply regulator.
+
+  enable-gpios:
+    description: GPIO to use to enable/disable the backlight (HWEN pin).
+    maxItems: 1
+
+  current-num-sinks:
+    description: number of the LED current sinks' channels.
+    enum: [1, 2, 3, 4, 5, 6]
+
+  kinetic,current-ramp-delay-ms:
+    description: |
+      LED current ramping delay time in milliseconds, note that the
+      case 1 will be mapped to 1μs.
+    enum: [1, 2, 4, 8, 16, 32, 64, 128, 192, 256, 320, 384, 448, 512, 576, 640]
+
+  kinetic,led-enable-ramp-delay-ms:
+    description: |
+      LED on/off ramping delay time in milliseconds, note that the case 0 will be
+      mapped to 512μs because ktz8866 can't ramp faster than it.
+    enum: [0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384]
+
+  kinetic,enable-lcd-bias:
+    description: Set if we want to output bias power supply for LCD.
+    type: boolean
+
+required:
+  - compatible
+  - vddpos-supply
+  - vddneg-supply
+  - enable-gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    backlight {
+        compatible = "kinetic,ktz8866";
+
+        vddpos-supply = <&bl_vddpos_5p5>;
+        vddneg-supply = <&bl_vddneg_5p5>;
+        enable-gpios = <&tlmm 139 GPIO_ACTIVE_HIGH>;
+        current-num-sinks = <5>;
+        kinetic,current-ramp-delay-ms = <128>;
+        kinetic,led-enable-ramp-delay-ms = <1>;
+        kinetic,enable-lcd-bias;
+    };
diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
index 9acdb7895514..5f1849bdabba 100644
--- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
@@ -19,6 +19,7 @@ properties:
   compatible:
     enum:
       - qcom,pm8941-wled
+      - qcom,pmi8950-wled
       - qcom,pmi8994-wled
       - qcom,pmi8998-wled
       - qcom,pm660l-wled