From af84b3327ad269ffefcd66ddff2f5dea5eff38f8 Mon Sep 17 00:00:00 2001
From: Otavio Salvador <otavio@ossystems.com.br>
Date: Fri, 13 Mar 2020 14:42:45 -0300
Subject: [PATCH] ARM: dts: Activate pullups in the console pins on
rv1108-elgin-r1
In order to make the console pins more robust to noise, activate
the pullups and increase its drive strength.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
---
arch/arm/dts/rv1108-elgin-r1.dts | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm/dts/rv1108-elgin-r1.dts b/arch/arm/dts/rv1108-elgin-r1.dts
index 32b95940b0..83e8b31838 100644
--- a/arch/arm/dts/rv1108-elgin-r1.dts
+++ b/arch/arm/dts/rv1108-elgin-r1.dts
@@ -40,9 +40,20 @@
};
&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2m0_xfer_pullup>;
status = "okay";
};
&usb20_otg {
status = "okay";
};
+
+&pinctrl {
+ uart2m0 {
+ uart2m0_xfer_pullup: uart2m0-xfer-pullup {
+ rockchip,pins = <2 RK_PD2 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
+ <2 RK_PD1 RK_FUNC_1 &pcfg_pull_up_drv_8ma>;
+ };
+ };
+};
--
2.39.5