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arm64: dts: qcom: sc7180: Improve the uart3 pin config for sc7180-idp

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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: satya priya <skakit@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/1600091917-7464-2-git-send-email-skakit@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
satya priya
2020-09-14 19:28:34 +05:30
committed by Bjorn Andersson
parent 7c6d828e90
commit ff11a79878
1 changed files with 4 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/arm64/boot/dts/qcom/sc7180-idp.dts
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@@ -473,32 +473,30 @@ pinconf {
&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).