linux-kernel - [PATCH v2 1/1] hp-wmi: Setting thermal profile fails with 0x06

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Message-Id: <20220912192603.4001-1-jorge.lopez2@hp.com>
Date:   Mon, 12 Sep 2022 14:26:03 -0500
From:   Jorge Lopez <jorgealtxwork@...il.com>
To:     hdegoede@...hat.com, balalic.enver@...il.com,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     markgross@...nel.org
Subject: [PATCH v2 1/1] hp-wmi: Setting thermal profile fails with 0x06

Error 0x06 (invalid command parameter) is reported by hp-wmi module
when reading the current thermal profile and then proceed to set it
back. The failing condition occurs in Linux NixOS after user
configures the thermal profile to ‘quiet mode’ in Windows.  Quiet Fan
Mode is supported in Windows but was not supported in hp-wmi module.

This fix adds support for PLATFORM_PROFILE_QUIET in hp-wmi module for
HP notebooks other than HP Omen series.  Quiet thermal profile is not
supported in HP Omen series notebooks.

Signed-off-by: Jorge Lopez <jorge.lopez2@...com>

---
Based on the latest platform-drivers-x86.git/for-next

Version 2 - Set bit (PROFILE_QUIET) only for non HP Omen Notebooks
Version 1 - Original patch
---
 drivers/platform/x86/hp-wmi.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index bc7020e9df9e..9a64601e217f 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -177,7 +177,8 @@ enum hp_thermal_profile_omen_v1 {
 enum hp_thermal_profile {
 	HP_THERMAL_PROFILE_PERFORMANCE	= 0x00,
 	HP_THERMAL_PROFILE_DEFAULT		= 0x01,
-	HP_THERMAL_PROFILE_COOL			= 0x02
+	HP_THERMAL_PROFILE_COOL			= 0x02,
+	HP_THERMAL_PROFILE_QUIET		= 0x03,
 };
 
 #define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW)
@@ -1194,6 +1195,9 @@ static int hp_wmi_platform_profile_get(struct platform_profile_handler *pprof,
 	case HP_THERMAL_PROFILE_COOL:
 		*profile =  PLATFORM_PROFILE_COOL;
 		break;
+	case HP_THERMAL_PROFILE_QUIET:
+		*profile = PLATFORM_PROFILE_QUIET;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -1216,6 +1220,10 @@ static int hp_wmi_platform_profile_set(struct platform_profile_handler *pprof,
 	case PLATFORM_PROFILE_COOL:
 		tp =  HP_THERMAL_PROFILE_COOL;
 		break;
+	case PLATFORM_PROFILE_QUIET:
+		tp = HP_THERMAL_PROFILE_QUIET;
+		break;
+
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -1263,6 +1271,8 @@ static int thermal_profile_setup(void)
 
 		platform_profile_handler.profile_get = hp_wmi_platform_profile_get;
 		platform_profile_handler.profile_set = hp_wmi_platform_profile_set;
+
+		set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices);
 	}
 
 	set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
-- 
2.34.1