From: Otavio Salvador <otavio@ossystems.com.br>
Date: Fri, 13 Mar 2020 17:42:45 +0000 (-0300)
Subject: ARM: dts: Activate pullups in the console pins on rv1108-elgin-r1
X-Git-Tag: v2020.04-rc4~5^2~4
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=af84b3327ad269ffefcd66ddff2f5dea5eff38f8;p=oweals%2Fu-boot.git

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>
---

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>;
+		};
+	};
+};