From 2192aaae1c36b00a4a97b7d25220a62c245f89b7 Mon Sep 17 00:00:00 2001
From: Titus Rwantare <titusr@google.com>
Date: Mon, 7 Mar 2022 12:05:59 -0800
Subject: [PATCH] hw/i2c: pmbus: add PEC unsupported warning
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Signed-off-by: Titus Rwantare <titusr@google.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220307200605.4001451-4-titusr@google.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/i2c/pmbus_device.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/i2c/pmbus_device.c b/hw/i2c/pmbus_device.c
index c7ec8e5499..ff644c1d4a 100644
--- a/hw/i2c/pmbus_device.c
+++ b/hw/i2c/pmbus_device.c
@@ -307,6 +307,11 @@ static uint8_t pmbus_receive_byte(SMBusDevice *smd)
 
     case PMBUS_CAPABILITY:
         pmbus_send8(pmdev, pmdev->capability);
+        if (pmdev->capability & BIT(7)) {
+            qemu_log_mask(LOG_UNIMP,
+                          "%s: PEC is enabled but not yet supported.\n",
+                          __func__);
+        }
         break;
 
     case PMBUS_VOUT_MODE:                 /* R/W byte */
-- 
2.30.2