linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: Kamel Bouhara <kamel.bouhara@bootlin.com>
To: William Breathitt Gray <vilhelm.gray@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Nicolas Ferre <nicolas.ferre@microchip.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Ludovic Desroches <ludovic.desroches@microchip.com>,
	linux-arm-kernel@lists.infradead.org
Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
	Kamel Bouhara <kamel.bouhara@bootlin.com>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	linux-input@vger.kernel.org
Subject: [PATCH v2 2/3] dt-bindings: counter: atmel-tcb-capture counter
Date: Thu,  9 Apr 2020 16:14:00 +0200	[thread overview]
Message-ID: <20200409141401.321222-3-kamel.bouhara@bootlin.com> (raw)
In-Reply-To: <20200409141401.321222-1-kamel.bouhara@bootlin.com>

Describe the devicetree binding for the ATMEL TCB counter. 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>
---
 .../bindings/counter/atmel-tcb-capture.yaml   | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/counter/atmel-tcb-capture.yaml

diff --git a/Documentation/devicetree/bindings/counter/atmel-tcb-capture.yaml b/Documentation/devicetree/bindings/counter/atmel-tcb-capture.yaml
new file mode 100644
index 000000000000..ca8b31c1f869
--- /dev/null
+++ b/Documentation/devicetree/bindings/counter/atmel-tcb-capture.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/counter/atmel-tcb-capture.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel TCB Counter
+
+maintainers:
+  - Kamel Bouhara <kamel.bouhara@bootlin.com>
+
+properties:
+  compatible:
+    const: "atmel,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 {
+        qdec: timer@0 {
+            compatible = "atmel,tcb-capture";
+            reg = <0>, <1>;
+        };
+    };
-- 
2.25.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2020-04-09 14:14 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-09 14:13 [PATCH v2 0/3] Atmel TCB capture driver Kamel Bouhara
2020-04-09 14:13 ` [PATCH v2 1/3] ARM: at91: add atmel tcb capabilities Kamel Bouhara
2020-04-12 10:31   ` Jonathan Cameron
2020-04-14  8:51     ` Kamel Bouhara
2020-04-09 14:14 ` Kamel Bouhara [this message]
2020-04-09 23:11   ` [PATCH v2 2/3] dt-bindings: counter: atmel-tcb-capture counter Rob Herring
2020-04-09 14:14 ` [PATCH v2 3/3] counter: Add atmel TCB capture counter Kamel Bouhara
2020-04-12 10:44   ` Jonathan Cameron
2020-04-15  8:40     ` Kamel Bouhara
2020-04-11 16:01 ` [PATCH v2 0/3] Atmel TCB capture driver William Breathitt Gray

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200409141401.321222-3-kamel.bouhara@bootlin.com \
    --to=kamel.bouhara@bootlin.com \
    --cc=alexandre.belloni@bootlin.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-iio@vger.kernel.org \
    --cc=linux-input@vger.kernel.org \
    --cc=ludovic.desroches@microchip.com \
    --cc=mark.rutland@arm.com \
    --cc=nicolas.ferre@microchip.com \
    --cc=robh+dt@kernel.org \
    --cc=thomas.petazzoni@bootlin.com \
    --cc=vilhelm.gray@gmail.com \
    --subject='Re: [PATCH v2 2/3] dt-bindings: counter: atmel-tcb-capture counter' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox