From: Lucas Stach <l.stach@pengutronix.de>
Date: Tue, 26 Jul 2022 13:05:23 +0000 (+0200)
Subject: ARM: dts: imx6qdl-kontron-samx6i: hook up DDC i2c bus
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=afd8f77957e3e83adf21d9229c61ff37f44a177a;p=linux.git

ARM: dts: imx6qdl-kontron-samx6i: hook up DDC i2c bus

i2c2 is routed to the pins dedicated as DDC in the module standard.
Reduce clock rate to 100kHz to be in line with VESA standard and hook
this bus up to the HDMI node.

Fixes: 708ed2649ad8 ("ARM: dts: imx6qdl-kontron-samx6i: increase i2c-frequency")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
[m.felsch@pengutronix.de: add fixes line]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi
index 7001c8c5e19b9..df39a4635541f 100644
--- a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi
@@ -285,6 +285,10 @@
 	};
 };
 
+&hdmi {
+	ddc-i2c-bus = <&i2c2>;
+};
+
 &i2c_intern {
 	pmic@8 {
 		compatible = "fsl,pfuze100";
@@ -409,7 +413,7 @@
 
 /* HDMI_CTRL */
 &i2c2 {
-	clock-frequency = <375000>;
+	clock-frequency = <100000>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_i2c2>;
 };