From 3aa6fa307425933c3e73ffa713f58cb60650ccc4 Mon Sep 17 00:00:00 2001
From: John Klug <john.klug@multitech.com>
Date: Thu, 24 Feb 2022 14:23:55 -0600
Subject: MTAC-GPIOB and LoRa overlays

---
 recipes-bsp/multitech/mt-dt-overlay/init | 63 +++++++++++++++++++-------------
 1 file changed, 38 insertions(+), 25 deletions(-)

diff --git a/recipes-bsp/multitech/mt-dt-overlay/init b/recipes-bsp/multitech/mt-dt-overlay/init
index 00af9f8..4c82e12 100755
--- a/recipes-bsp/multitech/mt-dt-overlay/init
+++ b/recipes-bsp/multitech/mt-dt-overlay/init
@@ -5,41 +5,54 @@
 # device tree.
 sysdir=/sys/devices/platform/mts-io
 
-i2c=/sys/bus/i2c/devices/
-eepromPath="/sys/bus/i2c/devices/0-0056/eeprom"
+I2CDIR="/sys/bus/i2c/devices"
+eepromPath="${I2CDIR}/0-0056/eeprom"
 
 DEVTREE="/sys/kernel/config/device-tree/overlays/"
 SYSFS="/usr/sbin/mts-io-sysfs"
-I2CDIR="/sys/bus/i2c/devices"
-AP1_EEPROM=$I2CDIR"/1-0050/eeprom"
-AP2_EEPROM=$I2CDIR"/1-0052/eeprom"
+AP1_EEPROM=${I2CDIR}"/1-0050/eeprom"
+AP2_EEPROM=${I2CDIR}"/1-0052/eeprom"
+
+install_all_dtbo() {
+    for f in *.dtbo ; do
+        if ! [[ -f $f ]] ; then
+            continue
+        fi
+        # f2 is the extracted device name
+        base=$(basename $f .dtbo)
+        /bin/mkdir ${DEVTREE}/$base || true
+        /bin/cat $f >${DEVTREE}/$base/dtbo
+    done
+}
 
 install_dtbo_dir() {
     if ! [[ -d ${DEVTREE} ]] ; then
         mount configfs
     fi
-    if ([ -f "$AP1_EEPROM" ] &&  grep -q GPIOB "$AP1_EEPROM") || ([ -f "$AP2_EEPROM" ] &&  grep -q GPIOB "$AP2_EEPROM"); then
-        for f in *gpiob.dtbo ; do
-            if ! [[ -f $f ]] ; then
-                continue
-            fi
-            # f2 is the extracted device name
-            base=$(basename $f .dtbo)
-            /bin/mkdir ${DEVTREE}/$base || true
-            /bin/cat $f >${DEVTREE}/$base/dtbo
-        done
-        modprobe mt_ac_gpiob
+    install_all_dtbo
+    gpiob1=0
+    gpiob2=0
+    if [[ -f $AP1_EEPROM ]] ; then
+	eeprom1=$(mts-id-eeprom --accessory-card --in-file "$AP1_EEPROM" 2>/dev/null)
+	if [[ $eeprom1 =~ [[:space:]]hw-version:[[:space:]]*\"MTAC-GPIOB- ]] ; then
+	   gpiob1=1
+	fi
+    fi
+    if [[ -f $AP2_EEPROM ]] ; then
+	eeprom2=$(mts-id-eeprom --accessory-card --in-file "$AP2_EEPROM" 2>/dev/null)
+	if [[ $eeprom2 =~ [[:space:]]hw-version:[[:space:]]*\"MTAC-GPIOB- ]] ; then
+	   gpiob2=1
+	fi
+    fi
+
+    if ((gpiob1 == 1)) || ((gpiob2 == 1)) ; then
+        /usr/bin/logger -t "mts-io" -p daemon.info -s 'Loading MTAC-GPIOB Device Tree'
+        cd gpiob
     else
-        for f in *.dtbo ; do
-            if ! [[ -f $f ]] ; then
-                continue
-            fi
-            # f2 is the extracted device name
-            base=$(basename $f .dtbo)
-            /bin/mkdir ${DEVTREE}/$base || true
-            /bin/cat $f >${DEVTREE}/$base/dtbo
-        done
+        /usr/bin/logger -t "mts-io" -p daemon.info -s 'Loading standard SPI Device Tree'
+        cd lora
     fi
+    install_all_dtbo
 }
 
 # Device tree format:
-- 
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