From 3db3e1ee88d81eb4335ee11653725b5481bda792 Mon Sep 17 00:00:00 2001
From: Johnny Liu <johnliu@nvidia.com>
Date: Tue, 4 Jul 2023 04:09:42 +0000
Subject: [PATCH] devfreq: Disable watermark when switching governor

Before switching to another governor, tegra_wmark governor should
disable watermarks so that watermark interrupts won't get triggered and
occupy the CPU resource.

Bug 4180241

Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Change-Id: I7aa5611445153b63e4849f4c077ef5fa9fbf4c88
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2930457
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Rajkumar Kasirajan <rkasirajan@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
---
 drivers/devfreq/tegra_wmark.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/devfreq/tegra_wmark.c b/drivers/devfreq/tegra_wmark.c
index d4a42891..5f7265b9 100644
--- a/drivers/devfreq/tegra_wmark.c
+++ b/drivers/devfreq/tegra_wmark.c
@@ -510,6 +510,9 @@ static int devfreq_tegra_wmark_event_handler(struct devfreq *df,
 		devfreq_update_wmark_threshold(df);
 		break;
 	case DEVFREQ_GOV_STOP:
+		wmark_config.upper_wmark_enabled = 0;
+		wmark_config.lower_wmark_enabled = 0;
+		drvdata->update_wmark_threshold(df, &wmark_config);
 		tegra_wmark_exit(df);
 		break;
 	case DEVFREQ_GOV_SUSPEND: