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Message-Id: <20241011-topic-mcan-wakeup-source-v6-12-v3-1-9752c714ad12@baylibre.com>
Date: Fri, 11 Oct 2024 15:16:38 +0200
From: Markus Schneider-Pargmann <msp@...libre.com>
To: Chandrasekar Ramakrishnan <rcsekar@...sung.com>,
Marc Kleine-Budde <mkl@...gutronix.de>,
Vincent Mailhol <mailhol.vincent@...adoo.fr>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>,
Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>
Cc: linux-can@...r.kernel.org, netdev@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Matthias Schiffer <matthias.schiffer@...tq-group.com>,
Vishal Mahaveer <vishalm@...com>, Kevin Hilman <khilman@...libre.com>,
Dhruva Gole <d-gole@...com>, Markus Schneider-Pargmann <msp@...libre.com>
Subject: [PATCH v3 1/9] dt-bindings: can: m_can: Add wakeup properties
m_can can be a wakeup source on some devices. Especially on some of the
am62* SoCs pins, connected to m_can in the mcu, can be used to wakeup
the SoC.
The wakeup-source property defines on which devices m_can can be used
for wakeup.
The pins associated with m_can have to have a special configuration to
be able to wakeup the SoC. This configuration is described in the wakeup
pinctrl state while the default state describes the default
configuration.
Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
---
.../devicetree/bindings/net/can/bosch,m_can.yaml | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
index c4887522e8fe97c3947357b4dbd4ecf20ee8100a..0c1f9fa7371897d45539ead49c9d290fb4966f30 100644
--- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
+++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
@@ -106,6 +106,22 @@ properties:
maximum: 32
minItems: 1
+ pinctrl-0:
+ description: Default pinctrl state
+
+ pinctrl-1:
+ description: Wakeup pinctrl state
+
+ pinctrl-names:
+ description:
+ When present should contain at least "default" describing the default pin
+ states. The second state called "wakeup" describes the pins in their
+ wakeup configuration required to exit sleep states.
+ minItems: 1
+ items:
+ - const: default
+ - const: wakeup
+
power-domains:
description:
Power domain provider node and an args specifier containing
@@ -122,6 +138,8 @@ properties:
minItems: 1
maxItems: 2
+ wakeup-source: true
+
required:
- compatible
- reg
--
2.45.2
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