From c3fa2a27a7d6a4c94bbef2ec6cfb4ad963ff30d0 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Tue, 29 Dec 2020 10:06:06 -0700
Subject: [PATCH] system76/common/peci.c: Do not use PECI when in C10 state and
 using ESPI

---
 src/board/system76/common/peci.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/board/system76/common/peci.c b/src/board/system76/common/peci.c
index 010403f..7a35cd4 100644
--- a/src/board/system76/common/peci.c
+++ b/src/board/system76/common/peci.c
@@ -1,10 +1,12 @@
 // SPDX-License-Identifier: GPL-3.0-only
 
 #include <board/fan.h>
+#include <board/gpio.h>
 #include <board/peci.h>
 #include <board/power.h>
 #include <common/debug.h>
 #include <common/macro.h>
+#include <ec/espi.h>
 #include <ec/gpio.h>
 #include <ec/pwm.h>
 
@@ -118,9 +120,15 @@ int peci_wr_pkg_config(uint8_t index, uint16_t param, uint32_t data) {
 // PECI information can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/design-guides/core-i7-lga-2011-guide.pdf
 void peci_event(void) {
     uint8_t duty;
-    if (power_state == POWER_STATE_S0) {
-        // Use PECI if in S0 state
 
+#if EC_ESPI
+    // Use PECI if CPU is not in C10 state
+    if (gpio_get(&CPU_C10_GATE_N))
+#else // EC_ESPI
+    // Use PECI if in S0 state
+    if (power_state == POWER_STATE_S0)
+#endif // EC_ESPI
+    {
         // Wait for completion
         while (HOSTAR & 1) {}
         // Clear status