linux-kernel - [PATCH v5 2/2] platform/x86 asus_wmi: Set throttle thermal policy to default

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Message-Id: <20191124140841.20929-1-leonmaxx@gmail.com>
Date:   Sun, 24 Nov 2019 16:08:41 +0200
From:   Leonid Maksymchuk <leonmaxx@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     platform-driver-x86@...r.kernel.org,
        acpi4asus-user@...ts.sourceforge.net, chiu@...lessm.com,
        kristian@...usen.dk, andy@...radead.org, dvhart@...radead.org,
        corentin.chary@...il.com, Leonid Maksymchuk <leonmaxx@...il.com>
Subject: [PATCH v5 2/2] platform/x86 asus_wmi: Set throttle thermal policy to default

ASUS TUF FX705DY/FX505DY starts in silent mode and under heavy
CPU load it overheats and drops CPU frequency to 399MHz and stays
at it until reboot [1]. Set throttle thermal policy to default
to avoid overheating and throttlig.

[1] Link: https://bugzilla.kernel.org/show_bug.cgi?id=203733

Signed-off-by: Leonid Maksymchuk <leonmaxx@...il.com>
---
 drivers/platform/x86/asus-wmi.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 88faea6..fe571d1 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1782,6 +1782,15 @@ static int throttle_thermal_policy_write(struct asus_wmi *asus)
 	return 0;
 }
 
+static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
+{
+	if (!asus->throttle_thermal_policy_available)
+		return 0;
+
+	asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
+	return throttle_thermal_policy_write(asus);
+}
+
 static int throttle_thermal_policy_switch_next(struct asus_wmi *asus)
 {
 	u8 new_mode = asus->throttle_thermal_policy_mode + 1;
@@ -2552,6 +2561,8 @@ static int asus_wmi_add(struct platform_device *pdev)
 	err = throttle_thermal_policy_check_present(asus);
 	if (err)
 		goto fail_throttle_thermal_policy;
+	else
+		throttle_thermal_policy_set_default(asus);
 
 	err = asus_wmi_sysfs_init(asus->platform_device);
 	if (err)
-- 
1.8.3.1