[PATCH] ARM: dts: imx: Use 100 kHz I2C2 on Data Modul i.MX8M Mini eDM SBC

Marek Vasut marex at denx.de
Fri Apr 22 10:57:53 CEST 2022


The I2C2 has SMBus device SMSC USB2514Bi connected to it, the device is
capable of up to 100 kHz operation. Reduce the bus frequency to 100 kHz
to guarantee this I2C device can work correctly.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Fabio Estevam <festevam at denx.de>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Stefano Babic <sbabic at denx.de>
---
 arch/arm/dts/imx8mm-data-modul-edm-sbc.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts b/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts
index 154116d01c9..5b022040902 100644
--- a/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts
+++ b/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts
@@ -392,7 +392,7 @@
 
 &i2c2 {
 	/* IMX8MM ERRATA e7805 -- I2C is limited to 384 kHz due to SoC bug */
-	clock-frequency = <320000>;
+	clock-frequency = <100000>;
 	pinctrl-names = "default", "gpio";
 	pinctrl-0 = <&pinctrl_i2c2>;
 	pinctrl-1 = <&pinctrl_i2c2_gpio>;
-- 
2.35.1



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