linux-kernel - [PATCH] dt-bindings: i2c: imx: hardware do not restrict clock-frequency to only 100 and 400 kHz

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Date:   Fri, 29 Oct 2021 16:11:33 +0200
From:   David Heidelberg <david@...t.cz>
To:     Oleksij Rempel <linux@...pel-privat.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Anson Huang <Anson.Huang@....com>
Cc:     ~okias/devicetree@...ts.sr.ht, David Heidelberg <david@...t.cz>,
        Oleksij Rempel <o.rempel@...gutronix.de>,
        Rob Herring <robh@...nel.org>, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: i2c: imx: hardware do not restrict clock-frequency to only 100 and 400 kHz

clock-frequency is only restricted by the upper limit of 400 kHz.

Found with:
$ DT_SCHEMA_FILES=Documentation/devicetree/bindings/i2c/i2c-imx.yaml make dtbs_check
...
arch/arm64/boot/dts/freescale/imx8mq-librem5-r2.dt.yaml: i2c@...20000: clock-frequency:0:0: 387000 is not one of [100000, 400000]
	From schema: linux/Documentation/devicetree/bindings/i2c/i2c-imx.yaml
...

Fixes: 4bdc44347299 ("dt-bindings: i2c: Convert imx i2c to json-schema")
Signed-off-by: David Heidelberg <david@...t.cz>
---
 Documentation/devicetree/bindings/i2c/i2c-imx.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.yaml b/Documentation/devicetree/bindings/i2c/i2c-imx.yaml
index 3592d49235e0..c167958ae2a9 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx.yaml
@@ -57,7 +57,9 @@ properties:
     const: ipg
 
   clock-frequency:
-    enum: [ 100000, 400000 ]
+    minimum: 1
+    default: 100000
+    maximum: 400000
 
   dmas:
     items:
-- 
2.33.0