[PATCH 1/2] media: rc: meson-irblaster: document device tree bindings

Viktor Prutyanov
2021-07-01T21:52:02Z

This patch adds binding documentation for the IR transmitter
available in Amlogic Meson SoCs.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
---
.../media/amlogic,meson-irblaster.yaml | 63 +++++++++++++++++++
1 file changed, 63 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/amlogic,meson-irblaster.yaml

diff --git a/Documentation/devicetree/bindings/media/amlogic,meson-irblaster.yaml b/Documentation/devicetree/bindings/media/amlogic,meson-irblaster.yaml
new file mode 100644
index 000000000000..baecda092a78
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/amlogic,meson-irblaster.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/media/amlogic,meson-irblaster.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Meson IR blaster
+
+maintainers:
+ - Viktor Prutyanov <viktor.prutyanov@phystech.edu>
+
+description: |
+ Some Amlogic SoCs such as A311D and T950D4 have IR transmitter
+ (blaster) controller onboard. It is capable of sending IR signals
+ with arbitrary carrier frequency and duty cycle.
+
+properties:
+ compatible:
+ const: amlogic,meson-irblaster
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ - const: sysclk
+ - const: xtal
+
+ mod-clock:
+ oneOf:
+ - const: sysclk
+ - const: xtal
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/g12a-clkc.h>
+
+ meson-irblaster@ff80014c {
+ compatible = "amlogic,meson-irblaster";
+ reg = <0xff80014c 0x10>;
+ interrupts = <0 198 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_CLK81 &xtal>;
+ clock-names = "sysclk", "xtal";
+ mod-clock = "xtal";
+ };
--
2.21.0