From 55eafc594a9ec1aaa8b01207c5361e79d6b52fe7 Mon Sep 17 00:00:00 2001
From: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Date: Fri, 11 Nov 2022 13:36:07 +0000
Subject: [PATCH] imx296-overlay: clock-frequency defaults to 54MHz but
 can be overridden

Signed-off-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
---
 arch/arm/boot/dts/overlays/README             | 3 +++
 arch/arm/boot/dts/overlays/imx296-overlay.dts | 5 +++--
 2 files changed, 6 insertions(+), 2 deletions(-)

--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -2207,6 +2207,9 @@ Params: rotation                Mounting
                                 configuring the sensor (default on)
         cam0                    Adopt the default configuration for CAM0 on a
                                 Compute Module (CSI0, i2c_vc, and cam0_reg).
+        clock-frequency         Sets the clock frequency to match that used on
+                                the board, which should be one of 54000000
+                                (the default), 37125000 or 74250000.
 
 
 Name:   imx327
--- a/arch/arm/boot/dts/overlays/imx296-overlay.dts
+++ b/arch/arm/boot/dts/overlays/imx296-overlay.dts
@@ -17,9 +17,9 @@
 
 	clk_frag: fragment@1 {
 		target = <&cam1_clk>;
-		__overlay__ {
+		clk_over: __overlay__ {
 			status = "okay";
-			clock-frequency = <37125000>;
+			clock-frequency = <54000000>;
 		};
 	};
 
@@ -99,5 +99,6 @@
 		       <&clk_frag>, "target:0=",<&cam0_clk>,
 		       <&imx296>, "clocks:0=",<&cam0_clk>,
 		       <&imx296>, "VANA-supply:0=",<&cam0_reg>;
+		clock-frequency = <&clk_over>, "clock-frequency:0";
 	};
 };
