This is a note to let you know that I've just added the patch titled
platform/x86: thinkpad_acpi: Add profile force ability
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
platform-x86-thinkpad_acpi-add-profile-force-ability.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1684878952929e20a864af5df7b498941c750f45 Mon Sep 17 00:00:00 2001
From: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
Date: Fri, 5 May 2023 09:25:23 -0400
Subject: platform/x86: thinkpad_acpi: Add profile force ability
From: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
commit 1684878952929e20a864af5df7b498941c750f45 upstream.
There has been a lot of confusion around which platform profiles are
supported on various platforms and it would be useful to have a debug
method to be able to override the profile mode that is selected.
I don't expect this to be used in anything other than debugging in
conjunction with Lenovo engineers - but it does give a way to get a
system working whilst we wait for either FW fixes, or a driver fix
to land upstream, if something is wonky in the mode detection logic
Signed-off-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230505132523.214338-2-mpearson-lenovo@xxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/platform/x86/thinkpad_acpi.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -10318,6 +10318,7 @@ static atomic_t dytc_ignore_event = ATOM
static DEFINE_MUTEX(dytc_mutex);
static int dytc_capabilities;
static bool dytc_mmc_get_available;
+static int profile_force;
static int convert_dytc_to_profile(int funcmode, int dytcmode,
enum platform_profile_option *profile)
@@ -10580,6 +10581,21 @@ static int tpacpi_dytc_profile_init(stru
if (err)
return err;
+ /* Check if user wants to override the profile selection */
+ if (profile_force) {
+ switch (profile_force) {
+ case -1:
+ dytc_capabilities = 0;
+ break;
+ case 1:
+ dytc_capabilities = BIT(DYTC_FC_MMC);
+ break;
+ case 2:
+ dytc_capabilities = BIT(DYTC_FC_PSC);
+ break;
+ }
+ pr_debug("Profile selection forced: 0x%x\n", dytc_capabilities);
+ }
if (dytc_capabilities & BIT(DYTC_FC_MMC)) { /* MMC MODE */
pr_debug("MMC is supported\n");
/*
@@ -11641,6 +11657,9 @@ MODULE_PARM_DESC(uwb_state,
"Initial state of the emulated UWB switch");
#endif
+module_param(profile_force, int, 0444);
+MODULE_PARM_DESC(profile_force, "Force profile mode. -1=off, 1=MMC, 2=PSC");
+
static void thinkpad_acpi_module_exit(void)
{
struct ibm_struct *ibm, *itmp;
Patches currently in stable-queue which might be from mpearson-lenovo@xxxxxxxxx are
queue-6.2/platform-x86-thinkpad_acpi-add-profile-force-ability.patch
queue-6.2/platform-x86-thinkpad_acpi-fix-platform-profiles-on-t490.patch
