This patch adds binding documentation for the IR transmitter
available in Amlogic Meson SoCs.
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@xxxxxxxxxxxx>
---
changes in v2:
- compatible = "amlogic,meson-g12a-irblaster" added
- clocks, clock-names and mod-clock updated
changes in v3:
- mod-clock removed
- max-fifo-level added
changes in v4:
- irblaster -> ir-tx renaming
changes in v5:
- max-fifo-level -> amlogic,fifo-threshold (fifo-threshold
== 128 - max-fifo-level)
- amlogic,fifo-threshold becomes uint32 in range [0; 127]
no changes in v6
.../bindings/media/amlogic,meson-ir-tx.yaml | 67 +++++++++++++++++++
1 file changed, 67 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/amlogic,meson-ir-tx.yaml
diff --git a/Documentation/devicetree/bindings/media/amlogic,meson-ir-tx.yaml b/Documentation/devicetree/bindings/media/amlogic,meson-ir-tx.yaml
new file mode 100644
index 000000000000..88655413495d
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/amlogic,meson-ir-tx.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/media/amlogic,meson-ir-tx.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Amlogic Meson IR transmitter
+
+maintainers:
+ - Viktor Prutyanov <viktor.prutyanov@xxxxxxxxxxxx>
+
+description: |
+ Some Amlogic SoCs such as A311D and T950D4 have IR transmitter
+ (also called blaster) controller onboard. It is capable of
+ sending IR signals with arbitrary carrier frequency and duty cycle.
+
+properties:
+ compatible:
+ oneOf:
+ - const: amlogic,meson-ir-tx
+ - items:
+ - const: amlogic,meson-g12a-ir-tx
+ - const: amlogic,meson-ir-tx
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: sysclk
+ - const: xtal
+
+ amlogic,fifo-threshold:
+ description: TX FIFO threshold
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 127
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/g12a-clkc.h>
+
+ ir@ff80014c {
+ compatible = "amlogic,meson-g12a-ir-tx", "amlogic,meson-ir-tx";
+ reg = <0xff80014c 0x10>;
+ interrupts = <0 198 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_CLK81>, <&xtal>;
+ clock-names = "sysclk", "xtal";
+ amlogic,fifo-threshold = <32>;
+ };
--
2.21.0
