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From:   Kiran Gunda <kgunda@codeaurora.org>
To:     bjorn.andersson@linaro.org, jingoohan1@gmail.com,
        lee.jones@linaro.org, b.zolnierkie@samsung.com,
        dri-devel@lists.freedesktop.org, daniel.thompson@linaro.org,
        jacek.anaszewski@gmail.com, pavel@ucw.cz, robh+dt@kernel.org,
        mark.rutland@arm.com, linux-leds@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        Dan Murphy <dmurphy@ti.com>
Cc:     linux-arm-msm@vger.kernel.org, Kiran Gunda <kgunda@codeaurora.org>
Subject: [PATCH V2 1/2] backlight: qcom-wled: convert the wled bindings to .yaml format
Date:   Wed,  4 Mar 2020 18:38:54 +0530
Message-Id: <1583327335-26899-2-git-send-email-kgunda@codeaurora.org>
In-Reply-To: <1583327335-26899-1-git-send-email-kgunda@codeaurora.org>
References: <1583327335-26899-1-git-send-email-kgunda@codeaurora.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Convert the qcom-wled bindings from .txt to .yaml format.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
 .../bindings/leds/backlight/qcom-wled.txt          | 154 -----------------
 .../bindings/leds/backlight/qcom-wled.yaml         | 184 +++++++++++++++++++++
 2 files changed, 184 insertions(+), 154 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt
 create mode 100644 Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml

diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt
deleted file mode 100644
index c06863b..0000000
--- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt
+++ /dev/null
@@ -1,154 +0,0 @@
-Binding for Qualcomm Technologies, Inc. WLED driver
-
-WLED (White Light Emitting Diode) driver is used for controlling display
-backlight that is part of PMIC on Qualcomm Technologies, Inc. reference
-platforms. The PMIC is connected to the host processor via SPMI bus.
-
-- compatible
-	Usage:        required
-	Value type:   <string>
-	Definition:   should be one of:
-			"qcom,pm8941-wled"
-			"qcom,pmi8998-wled"
-			"qcom,pm660l-wled"
-
-- reg
-	Usage:        required
-	Value type:   <prop encoded array>
-	Definition:   Base address of the WLED modules.
-
-- default-brightness
-	Usage:        optional
-	Value type:   <u32>
-	Definition:   brightness value on boot, value from: 0-4095.
-		      Default: 2048
-
-- label
-	Usage:        required
-	Value type:   <string>
-	Definition:   The name of the backlight device
-
-- qcom,cs-out
-	Usage:        optional
-	Value type:   <bool>
-	Definition:   enable current sink output.
-		      This property is supported only for PM8941.
-
-- qcom,cabc
-	Usage:        optional
-	Value type:   <bool>
-	Definition:   enable content adaptive backlight control.
-
-- qcom,ext-gen
-	Usage:        optional
-	Value type:   <bool>
-	Definition:   use externally generated modulator signal to dim.
-		      This property is supported only for PM8941.
-
-- qcom,current-limit
-	Usage:        optional
-	Value type:   <u32>
-	Definition:   mA; per-string current limit; value from 0 to 25 with
-		      1 mA step. Default 20 mA.
-		      This property is supported only for pm8941.
-
-- qcom,current-limit-microamp
-	Usage:        optional
-	Value type:   <u32>
-	Definition:   uA; per-string current limit; value from 0 to 30000 with
-		      2500 uA step. Default 25 mA.
-
-- qcom,current-boost-limit
-	Usage:        optional
-	Value type:   <u32>
-	Definition:   mA; boost current limit.
-		      For pm8941: one of: 105, 385, 525, 805, 980, 1260, 1400,
-		      1680. Default: 805 mA.
-		      For pmi8998: one of: 105, 280, 450, 620, 970, 1150, 1300,
-		      1500. Default: 970 mA.
-
-- qcom,switching-freq
-	Usage:        optional
-	Value type:   <u32>
-	 Definition:   kHz; switching frequency; one of: 600, 640, 685, 738,
-		       800, 872, 960, 1066, 1200, 1371, 1600, 1920, 2400, 3200,
-		       4800, 9600.
-		       Default: for pm8941: 1600 kHz
-				for pmi8998: 800 kHz
-
-- qcom,ovp
-	Usage:        optional
-	Value type:   <u32>
-	Definition:   V; Over-voltage protection limit; one of:
-		      27, 29, 32, 35. Default: 29V
-		      This property is supported only for PM8941.
-
-- qcom,ovp-millivolt
-	Usage:        optional
-	Value type:   <u32>
-	Definition:   mV; Over-voltage protection limit;
-		      For pmi8998: one of 18100, 19600, 29600, 31100.
-		      Default 29600 mV.
-		      If this property is not specified for PM8941, it
-		      falls back to "qcom,ovp" property.
-
-- qcom,num-strings
-	Usage:        optional
-	Value type:   <u32>
-	Definition:   #; number of led strings attached;
-		      value: For PM8941 from 1 to 3. Default: 2
-			     For PMI8998 from 1 to 4.
-
-- interrupts
-	Usage:        optional
-	Value type:   <prop encoded array>
-	Definition:   Interrupts associated with WLED. This should be
-		      "short" and "ovp" interrupts. Interrupts can be
-		      specified as per the encoding listed under
-		      Documentation/devicetree/bindings/spmi/
-		      qcom,spmi-pmic-arb.txt.
-
-- interrupt-names
-	Usage:        optional
-	Value type:   <string>
-	Definition:   Interrupt names associated with the interrupts.
-		      Must be "short" and "ovp". The short circuit detection
-		      is not supported for PM8941.
-
-- qcom,enabled-strings
-	Usage:        optional
-	Value tyoe:   <u32 array>
-	Definition:   Array of the WLED strings numbered from 0 to 3. Each
-		      string of leds are operated individually. Specify the
-		      list of strings used by the device. Any combination of
-		      led strings can be used.
-
-- qcom,external-pfet
-	Usage:        optional
-	Value type:   <bool>
-	Definition:   Specify if external PFET control for short circuit
-		      protection is used. This property is supported only
-		      for PMI8998.
-
-- qcom,auto-string-detection
-	Usage:        optional
-	Value type:   <bool>
-	Definition:   Enables auto-detection of the WLED string configuration.
-		      This feature is not supported for PM8941.
-
-
-Example:
-
-pm8941-wled@d800 {
-	compatible = "qcom,pm8941-wled";
-	reg = <0xd800>;
-	label = "backlight";
-
-	qcom,cs-out;
-	qcom,current-limit = <20>;
-	qcom,current-boost-limit = <805>;
-	qcom,switching-freq = <1600>;
-	qcom,ovp = <29>;
-	qcom,num-strings = <2>;
-	qcom,enabled-strings = <0 1>;
-};
diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
new file mode 100644
index 0000000..d334f81
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/leds/backlight/qcom-wled.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for Qualcomm Technologies, Inc. WLED driver
+
+maintainers:
+  - Lee Jones <lee.jones@linaro.org>
+
+description: |
+  WLED (White Light Emitting Diode) driver is used for controlling display
+  backlight that is part of PMIC on Qualcomm Technologies, Inc. reference
+  platforms. The PMIC is connected to the host processor via SPMI bus.
+
+properties:
+  compatible :
+    enum:
+       - qcom,pm8941-wled
+       - qcom,pmi8998-wled
+       - qcom,pm660l-wled
+
+  reg:
+    maxItems: 1
+
+  default-brightness:
+    maxItems: 1
+    description:
+      brightness value on boot, value from 0-4095.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+        default: 2048
+
+  label:
+    maxItems: 1
+    description:
+      The name of the backlight device.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/string
+
+  qcom,cs-out:
+    description:
+      enable current sink output.
+      This property is supported only for PM8941.
+    type: boolean
+
+  qcom,cabc:
+    description:
+      enable content adaptive backlight control.
+    type: boolean
+
+  qcom,ext-gen:
+    description:
+      use externally generated modulator signal to dim.
+      This property is supported only for PM8941.
+    type: boolean
+
+  qcom,current-limit:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      mA; per-string current limit; value from 0 to 25 with
+      1 mA step. This property is supported only for pm8941.
+    default: 20
+
+  qcom,current-limit-microamp:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      uA; per-string current limit; value from 0 to 30000 with
+      2500 uA step.
+    default: 25
+
+  qcom,current-boost-limit:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      mA; boost current limit.
+      For pm8941 one of 105, 385, 525, 805, 980, 1260, 1400, 1680.
+      Default, 805 mA.
+      For pmi8998 one of 105, 280, 450, 620, 970, 1150, 1300,
+      1500. Default 970 mA.
+
+  qcom,switching-freq:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      kHz; switching frequency; one of 600, 640, 685, 738,
+      800, 872, 960, 1066, 1200, 1371, 1600, 1920, 2400, 3200,
+      4800, 9600.
+      Default for pm8941 1600 kHz
+               for pmi8998 800 kHz
+
+  qcom,ovp:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      V; Over-voltage protection limit; one of 27, 29, 32, 35. Default 29V
+      This property is supported only for PM8941.
+
+  qcom,ovp-millivolt:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      mV; Over-voltage protection limit;
+      For pmi8998 one of 18100, 19600, 29600, 31100.
+      Default 29600 mV.
+      If this property is not specified for PM8941, it
+      falls back to "qcom,ovp" property.
+
+  qcom,num-strings:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      number of led strings attached;
+      value for PM8941 from 1 to 3. Default 2
+      For PMI8998 from 1 to 4.
+
+  interrupts:
+    maxItems: 2
+    description:
+      Interrupts associated with WLED. This should be
+      "short" and "ovp" interrupts. Interrupts can be
+      specified as per the encoding listed under
+      Documentation/devicetree/bindings/spmi/
+      qcom,spmi-pmic-arb.txt.
+
+  interrupt-names:
+    description:
+      Interrupt names associated with the interrupts.
+      Must be "short" and "ovp". The short circuit detection
+      is not supported for PM8941.
+
+  qcom,enabled-strings:
+    maxItems: 1
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32-array
+    description:
+      Array of the WLED strings numbered from 0 to 3. Each
+      string of leds are operated individually. Specify the
+      list of strings used by the device. Any combination of
+      led strings can be used.
+
+  qcom,external-pfet:
+    description:
+      Specify if external PFET control for short circuit
+      protection is used. This property is supported only
+      for PMI8998.
+    type: boolean
+
+  qcom,auto-string-detection:
+    description:
+      Enables auto-detection of the WLED string configuration.
+      This feature is not supported for PM8941.
+    type: boolean
+
+required:
+  - compatible
+  - reg
+  - label
+
+examples:
+  - |
+    pm8941-wled@d800 {
+        compatible = "qcom,pm8941-wled";
+        reg = <0xd800 0x100>;
+        label = "backlight";
+
+        qcom,cs-out;
+        qcom,current-limit = <20>;
+        qcom,current-boost-limit = <805>;
+        qcom,switching-freq = <1600>;
+        qcom,ovp = <29>;
+        qcom,num-strings = <2>;
+        qcom,enabled-strings = <0 1>;
+     };
-- 
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