On Wed, Apr 15, 2020 at 03:04:54PM +0200, Kamel Bouhara wrote:
Describe the devicetree binding for the Microchip TCB module.
Each counter blocks exposes three independent counters.
However, when configured in quadrature decoder, both channel <0> and <1>
are required for speed/position and rotation capture (yet only the
position is captured).
Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Signed-off-by: William Breathitt Gray <redacted>
quoted hunk ↗ jump to hunk
---
Changes from v3:
- Updated the brand name: s/atmel/microchip/.
Changes from v2:
- Fixed errors reported by dt_binding_check
.../counter/microchip-tcb-capture.yaml | 33 +++++++++++++++++++
1 file changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/counter/microchip-tcb-capture.yaml
diff --git a/Documentation/devicetree/bindings/counter/microchip-tcb-capture.yaml b/Documentation/devicetree/bindings/counter/microchip-tcb-capture.yaml
new file mode 100644
index 000000000000..183e9ee4c049
--- /dev/null
+++ b/Documentation/devicetree/bindings/counter/microchip-tcb-capture.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/counter/microchip-tcb-capture.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip TCB Counter
+
+maintainers:
+ - Kamel Bouhara <kamel.bouhara@bootlin.com>
+
+properties:
+ compatible:
+ const: "microchip,tcb-capture"
+
+ reg:
+ description: TCB capture channel to register as counter device.
+ Each channel is independent therefore only one channel is
+ registered by default execpt for the QDEC mode where both TCB0's
+ channels <0> and <1> are required.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ tcb0: timer@f800c000 {
+ compatible = "microchip,tcb-capture";
+ reg = <0>, <1>;
+ };--
2.25.0