meta-ampere: ssifbridge: use drop-in to switch bmc-ok

Instead of overwriting ssifbridge.service to set bmc-ok, use systemd
drop-in units instead.

Tested:
1. Stop ssifbridge.service service, check if bmc-ok is 0.
2. Start ssifbridge.service service, check if bmc-ok is 1.

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: I36e065ed84c4c8aa154996d9a31cfc21d0ab5657

2 files changed, 14 insertions, 0 deletions

diff --git a/meta-ampere/meta-mitchell/recipes-phosphor/ipmi/phosphor-ipmi-ssif/ssifbridge-override.conf b/meta-ampere/meta-mitchell/recipes-phosphor/ipmi/phosphor-ipmi-ssif/ssifbridge-override.conf
new file mode 100644
index 0000000000..5fc22e0597
--- /dev/null
+++ b/meta-ampere/meta-mitchell/recipes-phosphor/ipmi/phosphor-ipmi-ssif/ssifbridge-override.conf
@@ -0,0 +1,3 @@
+[Service]
+ExecStopPost=/bin/sh -c "gpioset $(gpiofind bmc-ok)=0"
+ExecStartPost=/bin/sh -c "gpioset $(gpiofind bmc-ok)=1"
diff --git a/meta-ampere/meta-mitchell/recipes-phosphor/ipmi/phosphor-ipmi-ssif_%.bbappend b/meta-ampere/meta-mitchell/recipes-phosphor/ipmi/phosphor-ipmi-ssif_%.bbappend
new file mode 100644
index 0000000000..e03cc21fb7
--- /dev/null
+++ b/meta-ampere/meta-mitchell/recipes-phosphor/ipmi/phosphor-ipmi-ssif_%.bbappend
@@ -0,0 +1,11 @@
+FILESEXTRAPATHS:append := "${THISDIR}/${PN}:"
+
+SRC_URI += " file://ssifbridge-override.conf"
+
+FILES:${PN} += "${systemd_system_unitdir}/ssifbridge.service.d"
+
+do_install:append() {
+    install -d ${D}${systemd_system_unitdir}/ssifbridge.service.d
+    install -m 644 ${WORKDIR}/ssifbridge-override.conf \
+        ${D}${systemd_system_unitdir}/ssifbridge.service.d
+}