From 40a2b67bbffaf40fdb862ae74493dcbc42513605 Mon Sep 17 00:00:00 2001 From: Philippe Schenker Date: Fri, 8 May 2020 12:08:45 +0200 Subject: ARM: dts: colibri-imx6ull: Use pull-down for adc pins As suggested by the reference manual in a note in chapter 13.2 this commit disables the keeper and enables a 100k pull-down on the adc pins. Related-to: ELB-2690 Signed-off-by: Philippe Schenker (cherry picked from commit d5a3675860d03d783689de3ed7cb3dec27e6a155) --- arch/arm/boot/dts/imx6ull-colibri.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/imx6ull-colibri.dtsi b/arch/arm/boot/dts/imx6ull-colibri.dtsi index 878bb7a67638..f090d967415b 100644 --- a/arch/arm/boot/dts/imx6ull-colibri.dtsi +++ b/arch/arm/boot/dts/imx6ull-colibri.dtsi @@ -106,6 +106,8 @@ &adc1 { num-channels = <10>; vref-supply = <®_module_3v3_avdd>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_adc1>; }; @@ -229,6 +231,15 @@ &iomuxc { imx6ull-colibri { + pinctrl_adc1: adc1grp { + fsl,pins = < + MX6UL_PAD_GPIO1_IO00__GPIO1_IO00 0x3000 /* SODIMM 8 */ + MX6UL_PAD_GPIO1_IO01__GPIO1_IO01 0x3000 /* SODIMM 6 */ + MX6UL_PAD_GPIO1_IO08__GPIO1_IO08 0x3000 /* SODIMM 4 */ + MX6UL_PAD_GPIO1_IO09__GPIO1_IO09 0x3000 /* SODIMM 2 */ + >; + }; + pinctrl_hog_1: hoggrp-1 { fsl,pins = < MX6UL_PAD_UART3_RX_DATA__GPIO1_IO25 0X14 /* SODIMM 77 */ -- cgit v1.2.3