From 53d231b44d552a2ffeadd35e7f490fe5d55993e6 Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Thu, 12 Jan 2023 05:21:23 +0300
Subject: tools: add sunxi-h3-i2c-reset.sh script

---
 tools/sunxi-h3-i2c-reset.sh | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 tools/sunxi-h3-i2c-reset.sh

diff --git a/tools/sunxi-h3-i2c-reset.sh b/tools/sunxi-h3-i2c-reset.sh
new file mode 100644
index 0000000..e654dfb
--- /dev/null
+++ b/tools/sunxi-h3-i2c-reset.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+devices="1c2ac00.i2c 1c2b000.i2c"
+pins="8 9 28 30"
+driver_path="/sys/bus/platform/drivers/mv64xxx_i2c"
+
+driver_unbind() {
+	echo -n "$1" > "$driver_path/unbind"
+}
+
+driver_bind() {
+	echo -n "$1" > "$driver_path/bind"
+}
+
+for dev in $devices; do driver_unbind "$dev"; done
+echo "unbind done"
+
+for pin in pins; do
+	gpio mode $pin out
+	gpio write $pin 0
+done
+echo "gpio reset done"
+
+for dev in $devices; do driver_bind "$dev"; done
+echo "bind done"
\ No newline at end of file
-- 
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