From d40bfd24760f076b1d1cf678252e633dc2eb4096 Mon Sep 17 00:00:00 2001
From: Vyacheslav Pedash <vyacheslav.pedash@globallogic.com>
Date: Wed, 3 Aug 2022 14:29:23 +0300
Subject: MTX-4571 Add DT overlay for the MTCDT3AC HW 0.2 GPIO expanders

---
 mtcpmhs/ap1-gpiob-0.0.dtso     |  1 +
 mtcpmhs/ap1-lora-0.0.dtso      |  1 +
 mtcpmhs/ap2-gpiob-0.0.dtso     |  1 +
 mtcpmhs/ap2-lora-0.0.dtso      |  1 +
 mtcpmhs/gpio-expander-0.1.dtso | 34 ++++++++++++------------
 mtcpmhs/gpio-expander-0.2.dtso | 60 ++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 81 insertions(+), 17 deletions(-)
 create mode 100644 mtcpmhs/gpio-expander-0.2.dtso

diff --git a/mtcpmhs/ap1-gpiob-0.0.dtso b/mtcpmhs/ap1-gpiob-0.0.dtso
index 0dac081..b443733 100644
--- a/mtcpmhs/ap1-gpiob-0.0.dtso
+++ b/mtcpmhs/ap1-gpiob-0.0.dtso
@@ -7,6 +7,7 @@
 /*
  * Location(s):
  * Put: MTCPM/0.0/gpiob/ap1-gpiob.dtbo
+ * Link: MTCPM/0.2/gpiob/ap1-gpiob.dtbo
  */
 
 #include "am4372.dtsi"
diff --git a/mtcpmhs/ap1-lora-0.0.dtso b/mtcpmhs/ap1-lora-0.0.dtso
index 3c4965c..75dd177 100644
--- a/mtcpmhs/ap1-lora-0.0.dtso
+++ b/mtcpmhs/ap1-lora-0.0.dtso
@@ -7,6 +7,7 @@
 /*
  * Location(s):
  * Put: MTCPM/0.0/lora/ap1-lora.dtbo
+ * Link: MTCPM/0.2/lora/ap1-lora.dtbo
  */
 
 #include "am4372.dtsi"
diff --git a/mtcpmhs/ap2-gpiob-0.0.dtso b/mtcpmhs/ap2-gpiob-0.0.dtso
index 5d76ae2..8bf9e30 100644
--- a/mtcpmhs/ap2-gpiob-0.0.dtso
+++ b/mtcpmhs/ap2-gpiob-0.0.dtso
@@ -7,6 +7,7 @@
 /*
  * Location(s):
  * Put: MTCPM/0.0/gpiob/ap2-gpiob.dtbo
+ * Link: MTCPM/0.2/gpiob/ap2-gpiob.dtbo
  */
 
 #include "am4372.dtsi"
diff --git a/mtcpmhs/ap2-lora-0.0.dtso b/mtcpmhs/ap2-lora-0.0.dtso
index fc5604f..f749fd4 100644
--- a/mtcpmhs/ap2-lora-0.0.dtso
+++ b/mtcpmhs/ap2-lora-0.0.dtso
@@ -7,6 +7,7 @@
 /*
  * Location(s):
  * Put: MTCPM/0.0/lora/ap2-lora.dtbo
+ * Link: MTCPM/0.2/lora/ap2-lora.dtbo
  */
 
 #include "am4372.dtsi"
diff --git a/mtcpmhs/gpio-expander-0.1.dtso b/mtcpmhs/gpio-expander-0.1.dtso
index 96b5fef..d512df4 100644
--- a/mtcpmhs/gpio-expander-0.1.dtso
+++ b/mtcpmhs/gpio-expander-0.1.dtso
@@ -22,25 +22,25 @@
         target-path = "/ocp@44000000/interconnect@48000000/segment@0/target-module@2a000/i2c@0";
         __overlay__ {
             gpiom1: gpio@20 {
-                    compatible = "microchip,mcp23008";
-                    gpio-controller;
-                    #gpio-cells = <2>;
-                    reg = <0x20>;
-                    interrupt-parent = <&gpio1>;
-                    interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
-                    interrupt-controller;
-                    #interrupt-cells=<2>;
+                compatible = "microchip,mcp23008";
+                gpio-controller;
+                #gpio-cells = <2>;
+                reg = <0x20>;
+                interrupt-parent = <&gpio1>;
+                interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+                interrupt-controller;
+                #interrupt-cells=<2>;
             }; /*gpio@20*/
             gpiom2: gpio@21 {
-                    compatible = "microchip,mcp23008";
-                    gpio-controller;
-                    #gpio-cells = <2>;
-                    reg = <0x21>;
-                    interrupt-parent = <&gpio1>;
-                    interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
-                    interrupt-controller;
-                    #interrupt-cells=<2>;
-                    gpio-line-names = "", "", "modesel_0", "modesel_1", "termination_en", "RTS_override", "gpio_exp_led", "";
+                compatible = "microchip,mcp23008";
+                gpio-controller;
+                #gpio-cells = <2>;
+                reg = <0x21>;
+                interrupt-parent = <&gpio1>;
+                interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+                interrupt-controller;
+                #interrupt-cells=<2>;
+                gpio-line-names = "", "", "modesel_0", "modesel_1", "termination_en", "RTS_override", "gpio_exp_led", "";
             }; /*gpio@20*/
         }; /*overlay*/
     }; /*fragment@0*/
diff --git a/mtcpmhs/gpio-expander-0.2.dtso b/mtcpmhs/gpio-expander-0.2.dtso
new file mode 100644
index 0000000..56eddd6
--- /dev/null
+++ b/mtcpmhs/gpio-expander-0.2.dtso
@@ -0,0 +1,60 @@
+/* 
+ * DTS overlay for MTCPM 0.2 hardware version.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/*
+ * Location(s):
+ * Put: MTCPM/0.2/gpio-expander.dtbo
+ */
+
+#include "am4372.dtsi"
+#include <dt-bindings/pinctrl/am43xx.h>
+#include <dt-bindings/pwm/pwm.h>
+#include <dt-bindings/gpio/gpio.h>
+
+
+/ {
+    compatible = "ti,am437x-gp-evm", "ti,am4372", "ti,am43";
+    fragment@0 {
+        target-path = "/ocp@44000000/interconnect@48000000/segment@0/target-module@2a000/i2c@0";
+        __overlay__ {
+            gpiom1: gpio@20 {
+                compatible = "nxp,pca9557";
+                gpio-controller;
+                #gpio-cells = <2>;
+                reg = <0x20>;
+                interrupt-parent = <&gpio1>;
+                interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+                interrupt-controller;
+                #interrupt-cells=<2>;
+            }; /*gpio@20*/
+            gpiom2: gpio@21 {
+                compatible = "nxp,pca9557";
+                gpio-controller;
+                #gpio-cells = <2>;
+                reg = <0x21>;
+                interrupt-parent = <&gpio1>;
+                interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+                interrupt-controller;
+                #interrupt-cells=<2>;
+                gpio-line-names = "", "", "modesel_0", "modesel_1", "termination_en", "RTS_override", "gpio_exp_led", "";
+            }; /*gpio@20*/
+        }; /*overlay*/
+    }; /*fragment@0*/
+
+    fragement@1 {
+        target-path = "/";
+        __overlay__ {
+            leds-exp {
+		        compatible = "gpio-leds";
+                led-gpio {
+                    gpios = <&gpiom2 6 GPIO_ACTIVE_LOW>;
+                    default-state = "off";
+                }; /*led-gpio*/
+            }; /*leds-exp*/
+        }; /*overlay*/
+    }; /*fragement@1*/
+};
-- 
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