From fde5f74ccfc771941b018b5415fa9664426e10ad Mon Sep 17 00:00:00 2001
From: Mark Pearson <mpearson-lenovo@squebb.ca>
Date: Thu, 12 Jan 2023 17:12:28 -0500
Subject: [PATCH] platform/x86: thinkpad_acpi: Fix profile mode display in AMT mode
Git-commit: fde5f74ccfc771941b018b5415fa9664426e10ad
Patch-mainline: v6.2-rc4
References: bsc#1210050
Recently AMT mode was enabled (somewhat unexpectedly) on the Lenovo
Z13 platform. The FW is advertising it is available and the driver tries
to use it - unfortunately it reports the profile mode incorrectly.
Note, there is also some extra work needed to enable the dynamic aspect
of AMT support that I will be following up with; but more testing is
needed first. This patch just fixes things so the profiles are reported
correctly.
Link: https://gitlab.freedesktop.org/hadess/power-profiles-daemon/-/issues/115
Fixes: 46dcbc61b739 ("platform/x86: thinkpad-acpi: Add support for automatic mode transitions")
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://lore.kernel.org/r/20230112221228.490946-1-mpearson-lenovo@squebb.ca
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/platform/x86/thinkpad_acpi.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 1195293b22fd..a95946800ae9 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -10311,9 +10311,11 @@ static DEFINE_MUTEX(dytc_mutex);
static int dytc_capabilities;
static bool dytc_mmc_get_available;
-static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *profile)
+static int convert_dytc_to_profile(int funcmode, int dytcmode,
+ enum platform_profile_option *profile)
{
- if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
+ switch (funcmode) {
+ case DYTC_FUNCTION_MMC:
switch (dytcmode) {
case DYTC_MODE_MMC_LOWPOWER:
*profile = PLATFORM_PROFILE_LOW_POWER;
@@ -10329,8 +10331,7 @@ static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *p
return -EINVAL;
}
return 0;
- }
- if (dytc_capabilities & BIT(DYTC_FC_PSC)) {
+ case DYTC_FUNCTION_PSC:
switch (dytcmode) {
case DYTC_MODE_PSC_LOWPOWER:
*profile = PLATFORM_PROFILE_LOW_POWER;
@@ -10344,6 +10345,14 @@ static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *p
default: /* Unknown mode */
return -EINVAL;
}
+ return 0;
+ case DYTC_FUNCTION_AMT:
+ /* For now return balanced. It's the closest we have to 'auto' */
+ *profile = PLATFORM_PROFILE_BALANCED;
+ return 0;
+ default:
+ /* Unknown function */
+ return -EOPNOTSUPP;
}
return 0;
}
@@ -10492,6 +10501,7 @@ static int dytc_profile_set(struct platform_profile_handler *pprof,
err = dytc_command(DYTC_SET_COMMAND(DYTC_FUNCTION_PSC, perfmode, 1), &output);
if (err)
goto unlock;
+
/* system supports AMT, activate it when on balanced */
if (dytc_capabilities & BIT(DYTC_FC_AMT))
dytc_control_amt(profile == PLATFORM_PROFILE_BALANCED);
@@ -10507,7 +10517,7 @@ static void dytc_profile_refresh(void)
{
enum platform_profile_option profile;
int output, err = 0;
- int perfmode;
+ int perfmode, funcmode;
mutex_lock(&dytc_mutex);
if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
@@ -10522,8 +10532,9 @@ static void dytc_profile_refresh(void)
if (err)
return;
+ funcmode = (output >> DYTC_GET_FUNCTION_BIT) & 0xF;
perfmode = (output >> DYTC_GET_MODE_BIT) & 0xF;
- convert_dytc_to_profile(perfmode, &profile);
+ convert_dytc_to_profile(funcmode, perfmode, &profile);
if (profile != dytc_current_profile) {
dytc_current_profile = profile;
platform_profile_notify();
--
2.35.3