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authorPhilippe Schenker <philippe.schenker@toradex.com>2020-05-08 12:08:45 +0200
committerPhilippe Schenker <philippe.schenker@toradex.com>2020-05-08 12:08:45 +0200
commit40a2b67bbffaf40fdb862ae74493dcbc42513605 (patch)
tree742d0024d7647cf966416c107f83fbfb078a68d0
parentb2a473cbef540ce6ce256ed12912e81643035a3d (diff)
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 <philippe.schenker@toradex.com> (cherry picked from commit d5a3675860d03d783689de3ed7cb3dec27e6a155)
-rw-r--r--arch/arm/boot/dts/imx6ull-colibri.dtsi11
1 files changed, 11 insertions, 0 deletions
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 = <&reg_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 */