Commit ff11a798 authored by satya priya's avatar satya priya Committed by Bjorn Andersson
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arm64: dts: qcom: sc7180: Improve the uart3 pin config for sc7180-idp 



Remove output-high from CTS and TX as this is not really required. During
bringup to fix transfer failures this was added to match with console uart
settings. Probably some boot loader config was missing then. As it is
working fine now, remove it.

Signed-off-by: default avatarsatya priya <skakit@codeaurora.org>
Reviewed-by: default avatarMatthias Kaehlcke <mka@chromium.org>
Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/1600091917-7464-2-git-send-email-skakit@codeaurora.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 7c6d828e

arch/arm64/boot/dts/qcom/sc7180-idp.dts

+4 −6
Original line number Diff line number Diff line
@@ -473,32 +473,30 @@ 
&qup_uart3_default {

	pinconf-cts {

		/*

		 * Configure a pull-down on 38 (CTS) to match the pull of

		 * Configure a pull-down on CTS to match the pull of

		 * the Bluetooth module.

		 */

		pins = "gpio38";

		bias-pull-down;

		output-high;

	};



	pinconf-rts {

		/* We'll drive 39 (RTS), so no pull */

		/* We'll drive RTS, so no pull */

		pins = "gpio39";

		drive-strength = <2>;

		bias-disable;

	};



	pinconf-tx {

		/* We'll drive 40 (TX), so no pull */

		/* We'll drive TX, so no pull */

		pins = "gpio40";

		drive-strength = <2>;

		bias-disable;

		output-high;

	};



	pinconf-rx {

		/*

		 * Configure a pull-up on 41 (RX). This is needed to avoid

		 * Configure a pull-up on RX. This is needed to avoid

		 * garbage data when the TX pin of the Bluetooth module is

		 * in tri-state (module powered off or not driving the

		 * signal yet).