linux-hardening - [PATCH 1/3] dt-bindings: leds: Add Silergy SY7802 flash LED

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Message-Id: <20240327-sy7802-v1-1-db74ab32faaf@apitzsch.eu>
Date: Wed, 27 Mar 2024 23:51:33 +0100
From: André Apitzsch via B4 Relay <devnull+git.apitzsch.eu@...nel.org>
To: Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>, 
 Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Kees Cook <keescook@...omium.org>, 
 "Gustavo A. R. Silva" <gustavoars@...nel.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: linux-leds@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht, 
 André Apitzsch <git@...tzsch.eu>
Subject: [PATCH 1/3] dt-bindings: leds: Add Silergy SY7802 flash LED

From: André Apitzsch <git@...tzsch.eu>

Document Silergy SY7802 flash LED driver devicetree bindings.

Signed-off-by: André Apitzsch <git@...tzsch.eu>
---
 .../devicetree/bindings/leds/silergy,sy7802.yaml   | 96 ++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/silergy,sy7802.yaml b/Documentation/devicetree/bindings/leds/silergy,sy7802.yaml
new file mode 100644
index 000000000000..d32efac8baa6
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/silergy,sy7802.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/silergy,sy7802.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silergy SY7802 1800mA Boost Charge Pump LED Driver
+
+maintainers:
+  - André Apitzsch <git@...tzsch.eu>
+
+description: |
+  The SY7802 is a current-regulated charge pump which can regulate two current
+  levels for Flash and Torch modes.
+
+  The SY7802 is a high-current synchronous boost converter with 2-channel
+  high side current sources. Each channel is able to deliver 900mA current.
+
+properties:
+  compatible:
+    enum:
+      - silergy,sy7802
+
+  reg:
+    maxItems: 1
+
+  enable-gpios:
+    maxItems: 1
+    description: A connection to the 'EN' pin.
+
+  flash-gpios:
+    maxItems: 1
+    description: A connection to the 'FLEN' pin.
+
+  vin-supply:
+    description: Regulator providing power to the 'VIN' pin.
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+patternProperties:
+  "^led@[0-1]$":
+    type: object
+    $ref: common.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        description: Index of the LED.
+        minimum: 0
+        maximum: 1
+
+      led-sources:
+        allOf:
+          - minItems: 1
+            maxItems: 2
+            items:
+              minimum: 0
+              maximum: 1
+
+    required:
+      - reg
+      - led-sources
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
+  - enable-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/leds/common.h>
+
+    flash-led-controller@53 {
+        compatible = "silergy,sy7802";
+        reg = <0x53>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        enable-gpios = <&tlmm 16 GPIO_ACTIVE_HIGH>;
+
+        led@0 {
+            reg = <0>;
+            function = LED_FUNCTION_FLASH;
+            color = <LED_COLOR_ID_WHITE>;
+            led-sources = <0>, <1>;
+        };
+    };

-- 
2.44.0