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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: "Pavel Machek" <pavel@ucw.cz>, "Dan Murphy" <dmurphy@ti.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Andy Gross" <agross@kernel.org>,
	"Bjorn Andersson" <bjorn.andersson@linaro.org>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Lee Jones" <lee.jones@linaro.org>,
	"Martin Botka" <martin.botka1@gmail.com>
Cc: linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-pwm@vger.kernel.org
Subject: [PATCH v5 1/4] dt-bindings: leds: Add Qualcomm Light Pulse Generator binding
Date: Fri, 16 Oct 2020 22:20:54 -0700
Message-ID: <20201017052057.2698588-2-bjorn.andersson@linaro.org> (raw)
In-Reply-To: <20201017052057.2698588-1-bjorn.andersson@linaro.org>

This adds the binding document describing the three hardware blocks
related to the Light Pulse Generator found in a wide range of Qualcomm
PMICs.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---

Changes since v4:
- Dropped quotes around power-source
- Moved "multi-led" to properties
- Corrected tab-indented line in example

 .../bindings/leds/leds-qcom-lpg.yaml          | 170 ++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml

diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
new file mode 100644
index 000000000000..5ccf0f3d8f1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
@@ -0,0 +1,170 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-qcom-lpg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Light Pulse Generator
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: >
+  The Qualcomm Light Pulse Generator consists of three different hardware blocks;
+  a ramp generator with lookup table, the light pulse generator and a three
+  channel current sink. These blocks are found in a wide range of Qualcomm PMICs.
+
+properties:
+  compatible:
+    enum:
+      - qcom,pm8916-pwm
+      - qcom,pm8941-lpg
+      - qcom,pm8994-lpg
+      - qcom,pmi8994-lpg
+      - qcom,pmi8998-lpg
+
+  "#pwm-cells":
+    const: 2
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  qcom,power-source:
+    $ref: /schemas/types.yaml#definitions/uint32
+    description: >
+      power-source used to drive the output, as defined in the datasheet.
+      Should be specified if the TRILED block is present
+    enum:
+      - 0
+      - 1
+      - 3
+
+  multi-led:
+    type: object
+    $ref: leds-class-multicolor.yaml#
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+      "^led@[0-9a-f]$":
+        type: object
+        $ref: common.yaml#
+
+        properties:
+          "qcom,dtest":
+            $ref: /schemas/types.yaml#definitions/uint32-array
+            description: >
+              configures the output into an internal test line of the pmic. Specified
+              by a list of u32 pairs, one pair per channel, where each pair denotes the
+              test line to drive and the second configures how the value should be
+              outputed, as defined in the datasheet
+            minItems: 2
+            maxItems: 2
+
+        required:
+          - reg
+
+patternProperties:
+  "^led@[0-9a-f]$":
+    type: object
+    $ref: common.yaml#
+    properties:
+      "qcom,dtest":
+        $ref: /schemas/types.yaml#definitions/uint32-array
+        description: >
+          configures the output into an internal test line of the pmic. Specified
+          by a list of u32 pairs, one pair per channel, where each pair denotes the
+          test line to drive and the second configures how the value should be
+          outputed, as defined in the datasheet
+        minItems: 2
+        maxItems: 2
+
+    required:
+      - reg
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/leds/common.h>
+
+    lpg {
+      compatible = "qcom,pmi8994-lpg";
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      qcom,power-source = <1>;
+
+      led@1 {
+        reg = <1>;
+        label = "green:user1";
+      };
+
+      led@2 {
+        reg = <2>;
+        label = "green:user0";
+        default-state = "on";
+      };
+
+      led@3 {
+        reg = <3>;
+        label = "green:user2";
+      };
+
+      led@4 {
+        reg = <4>;
+        label = "green:user3";
+
+        qcom,dtest = <4 1>;
+      };
+    };
+  - |
+    #include <dt-bindings/leds/common.h>
+
+    lpg {
+      compatible = "qcom,pmi8994-lpg";
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      qcom,power-source = <1>;
+
+      multi-led {
+        color = <LED_COLOR_ID_MULTI>;
+        label = "rgb:notification";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led@1 {
+          reg = <1>;
+          color = <LED_COLOR_ID_RED>;
+        };
+
+        led@2 {
+          reg = <2>;
+          color = <LED_COLOR_ID_GREEN>;
+        };
+
+        led@3 {
+          reg = <3>;
+          color = <LED_COLOR_ID_BLUE>;
+        };
+      };
+    };
+  - |
+    lpg {
+      compatible = "qcom,pm8916-pwm";
+      #pwm-cells = <2>;
+    };
+...
-- 
2.28.0


  reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-17  5:20 [PATCH v5 0/4] Qualcomm Light Pulse Generator Bjorn Andersson
2020-10-17  5:20 ` Bjorn Andersson [this message]
2020-10-17  5:20 ` [PATCH v5 2/4] leds: Add driver for Qualcomm LPG Bjorn Andersson
2020-10-17 15:37   ` Martin Botka
2020-10-26  8:27     ` Pavel Machek
2020-10-26  9:02       ` Martin Botka
2020-10-26 15:11         ` Pavel Machek
2020-10-26 15:19           ` Martin Botka
2020-10-18 20:12   ` Andy Shevchenko
2020-10-20  4:24     ` Bjorn Andersson
2020-10-29 12:14       ` Andy Shevchenko
2020-10-17  5:20 ` [PATCH v5 3/4] arm64: dts: qcom: pm(i)8994: Add mpp and lpg blocks Bjorn Andersson
2020-10-17  5:20 ` [PATCH v5 4/4] arm64: dts: qcom: Add user LEDs on db820c Bjorn Andersson

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