[PATCH 1/5] arm: dts: imx8mm-venice-gw7901: add digital I/O direction control GPIO's

[Tim Harvey <tharvey@gateworks.com>]

The GW7901 has GPIO's to configure the direction of its isolated
digital I/O signals. Add the GPIO pinmux, line names, and hog
configuration.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi | 14 ++++++++++++++
 arch/arm/dts/imx8mm-venice-gw7901.dts         |  4 +++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi
index e68030e7b22c..9fa21942c0c6 100644
--- a/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi
@@ -43,6 +43,20 @@
 };
 
 &gpio4 {
+	dig1ctl {
+		gpio-hog;
+		output-low;
+		gpios = <4 GPIO_ACTIVE_HIGH>;
+		line-name = "dig1_ctl";
+	};
+
+	dig2ctl {
+		gpio-hog;
+		output-low;
+		gpios = <5 GPIO_ACTIVE_HIGH>;
+		line-name = "dig2_ctl";
+	};
+
 	uart3_rs232 {
 		gpio-hog;
 		output-high;
diff --git a/arch/arm/dts/imx8mm-venice-gw7901.dts b/arch/arm/dts/imx8mm-venice-gw7901.dts
index 826627bd4503..ec8d80b76aee 100644
--- a/arch/arm/dts/imx8mm-venice-gw7901.dts
+++ b/arch/arm/dts/imx8mm-venice-gw7901.dts
@@ -303,7 +303,7 @@
 
 &gpio4 {
 	gpio-line-names = "", "", "", "",
-		"", "", "uart3_rs232#", "uart3_rs422#",
+		"dig1_ctl", "dig2_ctl", "uart3_rs232#", "uart3_rs422#",
 		"uart3_rs485#", "", "", "", "", "", "", "",
 		"", "", "", "", "", "", "", "",
 		"", "", "", "uart4_rs485#", "", "sim1det#", "sim2det#", "";
@@ -820,6 +820,8 @@
 
 	pinctrl_hog: hoggrp {
 		fsl,pins = <
+			MX8MM_IOMUXC_SAI1_RXD2_GPIO4_IO4	0x40000041 /* DIG1_CTL */
+			MX8MM_IOMUXC_SAI1_RXD3_GPIO4_IO5	0x40000041 /* DIG2_CTL */
 			MX8MM_IOMUXC_SPDIF_TX_GPIO5_IO3		0x40000041 /* DIG2_OUT */
 			MX8MM_IOMUXC_SPDIF_RX_GPIO5_IO4		0x40000041 /* DIG2_IN */
 			MX8MM_IOMUXC_GPIO1_IO06_GPIO1_IO6	0x40000041 /* DIG1_IN */
-- 
2.25.1