linux-kernel - [PATCH v6 1/3] dt-bindings: counter: add ti,am62-ecap-capture.yaml

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Message-Id: <20220907130327.139757-2-jpanis@baylibre.com>
Date:   Wed,  7 Sep 2022 15:03:25 +0200
From:   Julien Panis <jpanis@...libre.com>
To:     william.gray@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, mranostay@...com
Subject: [PATCH v6 1/3] dt-bindings: counter: add ti,am62-ecap-capture.yaml

This commit adds a YAML binding for TI ECAP used in capture operating mode.

Signed-off-by: Julien Panis <jpanis@...libre.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../counter/ti,am62-ecap-capture.yaml         | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/counter/ti,am62-ecap-capture.yaml

diff --git a/Documentation/devicetree/bindings/counter/ti,am62-ecap-capture.yaml b/Documentation/devicetree/bindings/counter/ti,am62-ecap-capture.yaml
new file mode 100644
index 000000000000..4e0b2d2b303e
--- /dev/null
+++ b/Documentation/devicetree/bindings/counter/ti,am62-ecap-capture.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/counter/ti,am62-ecap-capture.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments Enhanced Capture (eCAP) Module
+
+maintainers:
+  - Julien Panis <jpanis@...libre.com>
+
+description: |
+  The eCAP module resources can be used to capture timestamps
+  on input signal events (falling/rising edges).
+
+properties:
+  compatible:
+    const: ti,am62-ecap-capture
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: fck
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/soc/ti,sci_pm_domain.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        capture@...00000 { /* eCAP in capture mode on am62x */
+            compatible = "ti,am62-ecap-capture";
+            reg = <0x00 0x23100000 0x00 0x100>;
+            interrupts = <GIC_SPI 113 IRQ_TYPE_EDGE_RISING>;
+            power-domains = <&k3_pds 51 TI_SCI_PD_EXCLUSIVE>;
+            clocks = <&k3_clks 51 0>;
+            clock-names = "fck";
+        };
+    };
-- 
2.37.3