From 5e67752c725fa06d0e2455dac19fbef93e313eb7 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 25 Jun 2020 16:52:14 +0100
Subject: [PATCH] media: dt-bindings: media: i2c: Add mono version to
 IMX290 bindings

The IMX290 module is available as either monochrome or colour and
the variant is not detectable at runtime.

Add a new compatible string for the monochrome version.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 Documentation/devicetree/bindings/media/i2c/imx290.txt | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/Documentation/devicetree/bindings/media/i2c/imx290.txt
+++ b/Documentation/devicetree/bindings/media/i2c/imx290.txt
@@ -1,13 +1,14 @@
 * Sony IMX290 1/2.8-Inch CMOS Image Sensor
 
 The Sony IMX290 is a 1/2.8-Inch CMOS Solid-state image sensor with
-Square Pixel for Color Cameras. It is programmable through I2C and 4-wire
-interfaces. The sensor output is available via CMOS logic parallel SDR output,
+Square Pixel for Color or Monochrome Cameras. It is programmable through I2C
+and 4-wire interfaces.
+The sensor output is available via CMOS logic parallel SDR output,
 Low voltage LVDS DDR output and CSI-2 serial data output. The CSI-2 bus is the
 default. No bindings have been defined for the other busses.
 
 Required Properties:
-- compatible: Should be "sony,imx290"
+- compatible: Should be "sony,imx290", or "sony,imx290-mono"
 - reg: I2C bus address of the device
 - clocks: Reference to the xclk clock.
 - clock-names: Should be "xclk".
