1 files changed, 31 insertions, 0 deletions
diff --git a/src/mainboard/dell/xps_8300/smihandler.c b/src/mainboard/dell/xps_8300/smihandler.c
new file mode 100644
index 0000000000..f126468fa5
--- /dev/null
+++ b/src/mainboard/dell/xps_8300/smihandler.c
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <types.h>
+#include <acpi/acpi.h>
+#include <cpu/x86/smm.h>
+#include <superio/ite/common/ite.h>
+#include <superio/ite/it8772f/it8772f.h>
+
+#define GPIO_DEV PNP_DEV(0x2e, IT8772F_GPIO)
+
+void mainboard_smi_sleep(u8 slp_typ)
+{
+	switch (slp_typ) {
+	case ACPI_S3:
+		ite_set_3vsbsw(GPIO_DEV, true);
+		ite_delay_pwrgd3(GPIO_DEV);
+		it8772f_gpio_led(
+			GPIO_DEV,
+			2 /* set */,
+			0x02 /* select */,
+			0x01 /* polarity */,
+			0x01 /* 1 = pullup */,
+			0x01 /* output */,
+			0x00 /* 1 = Simple IO function */,
+			SIO_GPIO_BLINK_GPIO22,
+			IT8772F_GPIO_BLINK_FREQUENCY_1_HZ);
+		break;
+	default:
+		break;
+	}
+}