From 57fb8b4654a1ca81af38085de411af7a09be911a Mon Sep 17 00:00:00 2001
From: Eugen Hristev <eugen.hristev@microchip.com>
Date: Tue, 18 Sep 2018 10:35:57 +0300
Subject: [PATCH] ARM: dts: at91: sama5d4_xplained: add onewire connector for
 LCD eeprom

Add onewire node in device tree for TM series LCDs

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 arch/arm/dts/at91-sama5d4_xplained.dts | 16 ++++++++++++++++
 arch/arm/dts/sama5d4.dtsi              |  5 +++++
 2 files changed, 21 insertions(+)

diff --git a/arch/arm/dts/at91-sama5d4_xplained.dts b/arch/arm/dts/at91-sama5d4_xplained.dts
index ea35dc2..58a0e60 100644
--- a/arch/arm/dts/at91-sama5d4_xplained.dts
+++ b/arch/arm/dts/at91-sama5d4_xplained.dts
@@ -58,6 +58,18 @@
 		stdout-path = &usart3;
 	};
 
+	onewire_tm: onewire {
+		gpios = <&pioE 15 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_onewire_tm_default>;
+		status = "okay";
+
+		w1_eeprom: w1_eeprom@0 {
+			compatible = "maxim,ds24b33";
+			status = "okay";
+		};
+	};
+
 	memory {
 		reg = <0x20000000 0x20000000>;
 	};
@@ -199,6 +211,10 @@
 						atmel,pins =
 							<AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
 					};
+					pinctrl_onewire_tm_default: onewire_tm_default {
+						atmel,pins =
+							<AT91_PIOE 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+					};
 				};
 			};
 		};
diff --git a/arch/arm/dts/sama5d4.dtsi b/arch/arm/dts/sama5d4.dtsi
index 8072b8a..8875d7b 100644
--- a/arch/arm/dts/sama5d4.dtsi
+++ b/arch/arm/dts/sama5d4.dtsi
@@ -1913,4 +1913,9 @@
 			};
 		};
 	};
+
+	onewire_tm: onewire {
+		compatible = "w1-gpio";
+		status = "disabled";
+	};
 };