meta-ampere: fix shellcheck issues

Fix all issues from the shellcheck checked on bash shells under
meta-ampere.

Tested: Verify the following features:
1. Power control (on,off, cycle, graceful shutdown, hard reset).
2. UART switching.
3. UEFI firmware update.

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: Idabf839b7521ecadb642230cc8bb3472c787002e

1 files changed, 26 insertions, 24 deletions

diff --git a/meta-ampere/meta-jade/recipes-ampere/platform/mtjade-gpio-config/ampere_gpio_utils.sh b/meta-ampere/meta-jade/recipes-ampere/platform/mtjade-gpio-config/ampere_gpio_utils.sh
index 8e4f455bf..1a098f446 100644
--- a/meta-ampere/meta-jade/recipes-ampere/platform/mtjade-gpio-config/ampere_gpio_utils.sh
+++ b/meta-ampere/meta-jade/recipes-ampere/platform/mtjade-gpio-config/ampere_gpio_utils.sh
@@ -1,43 +1,45 @@
 #!/bin/bash
+
+# shellcheck source=/dev/null
 source /usr/sbin/gpio-defs.sh
 source /usr/sbin/gpio-lib.sh
 
 function usage() {
-    echo "usage: ampere_gpio_utils.sh [power] [on|off]";
+	echo "usage: ampere_gpio_utils.sh [power] [on|off]";
 }
 
 set_gpio_power_off() {
-    echo "Setting GPIO before Power off"
-    gpio_configure_output $OCP_AUX_PWREN 1
-    gpio_configure_output $OCP_MAIN_PWREN 0
-    gpio_configure_output $SPI0_PROGRAM_SEL 0
+	echo "Setting GPIO before Power off"
+	gpio_configure_output "$OCP_AUX_PWREN" 1
+	gpio_configure_output "$OCP_MAIN_PWREN" 0
+	gpio_configure_output "$SPI0_PROGRAM_SEL" 0
 }
 
 set_gpio_power_on() {
-    echo "Setting GPIO before Power on"
-    gpio_configure_output $OCP_AUX_PWREN 1
-    gpio_configure_output $OCP_MAIN_PWREN 1
-    gpio_configure_output $SPI0_PROGRAM_SEL 1
-    gpio_configure_output $SPI0_BACKUP_SEL 0
+	echo "Setting GPIO before Power on"
+	gpio_configure_output "$OCP_AUX_PWREN" 1
+	gpio_configure_output "$OCP_MAIN_PWREN" 1
+	gpio_configure_output "$SPI0_PROGRAM_SEL" 1
+	gpio_configure_output "$SPI0_BACKUP_SEL" 0
 }
 
 if [ $# -lt 2 ]; then
-    echo "Total number of parameter=$#"
-    echo "Insufficient parameter"
-    usage;
-    exit 0;
+	echo "Total number of parameter=$#"
+	echo "Insufficient parameter"
+	usage;
+	exit 0;
 fi
 
-if [ $1 == "power" ]; then
-    if [ $2 == "on" ]; then
-        set_gpio_power_on
-    elif [ $2 == "off" ]; then
-        set_gpio_power_off
-    fi
-    exit 0;
+if [ "$1" == "power" ]; then
+	if [ "$2" == "on" ]; then
+		set_gpio_power_on
+	elif [ "$2" == "off" ]; then
+		set_gpio_power_off
+	fi
+	exit 0;
 else
-    echo "Invalid parameter1=$1"
-    usage;
-    exit 0;
+	echo "Invalid parameter1=$1"
+	usage;
+	exit 0;
 fi
 exit 0;