From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
To: linux-media@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
"Jacopo Mondi" <jacopo@jmondi.org>,
"Kieran Bingham" <kieran.bingham@ideasonboard.com>,
"Niklas Söderlund" <niklas.soderlund@ragnatech.se>,
"Thomas Nizan" <tnizan@witekio.com>,
"Rob Herring" <robh+dt@kernel.org>,
devicetree@vger.kernel.org
Subject: [PATCH v2 02/11] dt-bindings: media: i2c: max9286: Add property to select I2C speed
Date: Sat, 1 Jan 2022 20:27:57 +0200 [thread overview]
Message-ID: <20220101182806.19311-3-laurent.pinchart+renesas@ideasonboard.com> (raw)
In-Reply-To: <20220101182806.19311-1-laurent.pinchart+renesas@ideasonboard.com>
The I2C speed on the remote side (the I2C master bus of the connected
serializers) is configurable, and doesn't need to match the speed of the
local bus (the slave bus of the MAX9286). All remote buses must use the
same speed, and the MAX9286 needs to be programmed accordingly. Add a
new DT property to select the speed to make it configurable.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
.../devicetree/bindings/media/i2c/maxim,max9286.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
index c20557b52e45..5d3e99027a79 100644
--- a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
@@ -50,6 +50,13 @@ properties:
'#gpio-cells':
const: 2
+ maxim,i2c-clock-frequency:
+ enum: [ 8470, 28300, 84700, 105000, 173000, 339000, 533000, 837000 ]
+ default: 105000
+ description: |
+ The I2C clock frequency for the remote I2C buses. The value must match
+ the configuration of the remote serializers.
+
maxim,reverse-channel-microvolt:
minimum: 30000
maximum: 200000
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2022-01-01 18:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-01 18:27 [PATCH v2 00/11] media: i2c: max9286: Small new features Laurent Pinchart
2022-01-01 18:27 ` [PATCH v2 01/11] dt-bindings: media: i2c: max9286: Add support for per-port supplies Laurent Pinchart
2022-01-09 11:48 ` Jacopo Mondi
2022-01-10 20:47 ` Rob Herring
2022-01-01 18:27 ` Laurent Pinchart [this message]
2022-01-01 22:01 ` [PATCH v2 02/11] dt-bindings: media: i2c: max9286: Add property to select I2C speed Rob Herring
2022-01-04 15:56 ` Rob Herring
2022-01-01 18:27 ` [PATCH v2 03/11] dt-bindings: media: i2c: max9286: Add property to select bus width Laurent Pinchart
2022-01-09 11:47 ` Jacopo Mondi
2022-01-10 20:53 ` Rob Herring
2022-01-10 21:24 ` [PATCH v2.1 " Laurent Pinchart
2022-01-22 0:28 ` Rob Herring
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