linux-kernel - [PATCH v2 1/2] dt-bindings: i2c: mv64xxx: add reset-gpios property

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Message-ID: <20231016023504.3976746-2-chris.packham@alliedtelesis.co.nz>
Date:   Mon, 16 Oct 2023 15:35:03 +1300
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     gregory.clement@...tlin.com, andi.shyti@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org
Cc:     linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v2 1/2] dt-bindings: i2c: mv64xxx: add reset-gpios property

Add reset-gpios and reset-delay-us properties to the marvell,mv64xxx-i2c
binding. These can be used to describe hardware where a common reset
GPIO is connected to all downstream devices on and I2C bus. This reset
will be released before the downstream devices on the bus are probed.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---

Notes:
    Changes in v2:
    - Update commit message
    - Add reset-delay-us property

 .../devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml        | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml b/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
index 461d1c9ee3f7..7223797b0572 100644
--- a/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
@@ -70,6 +70,12 @@ properties:
   resets:
     maxItems: 1
 
+  reset-gpios:
+    maxItems: 1
+
+  reset-delay-us:
+    description: Delay in us to wait after reset gpio de-assertion.
+
   dmas:
     items:
       - description: RX DMA Channel
-- 
2.42.0