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ARM: dts: imx6ul-kontron: Change WDOG_ANY signal from push-pull to open-drain 

The WDOG_ANY signal is connected to the RESET_IN signal of the SoM
and baseboard. It is currently configured as push-pull, which means
that if some external device like a programmer wants to assert the
RESET_IN signal by pulling it to ground, it drives against the high
level WDOG_ANY output of the SoC.

To fix this we set the WDOG_ANY signal to open-drain configuration.
That way we make sure that the RESET_IN can be asserted by the
watchdog as well as by external devices.

Fixes: 1ea4b76cdf ("ARM: dts: imx6ul-kontron-n6310: Add Kontron i.MX6UL N6310 SoM and boards")
Cc: stable@vger.kernel.org
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Frieder Schrempf 2020-05-28 14:43:43 +00:00 committed by Shawn Guo
parent 04a2c05179
commit d22a16cc92
1 changed files with 1 additions and 1 deletions
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2
arch/arm/boot/dts/imx6ul-kontron-n6x1x-som-common.dtsi
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@ -116,7 +116,7 @@ MX6UL_PAD_SNVS_TAMPER9__GPIO5_IO09 0x1b0b0
pinctrl_wdog: wdoggrp {
fsl,pins = <
MX6UL_PAD_GPIO1_IO09__WDOG1_WDOG_ANY 0x30b0
MX6UL_PAD_GPIO1_IO09__WDOG1_WDOG_ANY 0x18b0
>;
};
};