diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2022-06-23 13:59:14 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-06-27 16:20:11 +0200 |
| commit | a27a1e35f5c87463ba7c12d5b7d7cbafbefc9213 (patch) | |
| tree | ccd1761d02bc207b015565acd630265fe920cfad /drivers/platform | |
| parent | d2f33f0c3ad7b0d5262d9b986f1353265fad7a08 (diff) | |
platform/x86: ideapad-laptop: Add allow_v4_dytc module parameter
Add an allow_v4_dytc module parameter to allow users to easily test if
DYTC version 4 platform-profiles work on their laptop.
Fixes: 599482c58ebd ("platform/x86: ideapad-laptop: Add platform support for Ideapad 5 Pro 16ACH6-82L5")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213297
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220623115914.103001-1-hdegoede@redhat.com
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/ideapad-laptop.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 3ccb7b71dfb1..71f4b59eed4b 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -152,6 +152,10 @@ static bool no_bt_rfkill; module_param(no_bt_rfkill, bool, 0444); MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth."); +static bool allow_v4_dytc; +module_param(allow_v4_dytc, bool, 0444); +MODULE_PARM_DESC(allow_v4_dytc, "Enable DYTC version 4 platform-profile support."); + /* * ACPI Helpers */ @@ -901,13 +905,16 @@ static int ideapad_dytc_profile_init(struct ideapad_private *priv) dytc_version = (output >> DYTC_QUERY_REV_BIT) & 0xF; - if (dytc_version < 5) { - if (dytc_version < 4 || !dmi_check_system(ideapad_dytc_v4_allow_table)) { - dev_info(&priv->platform_device->dev, - "DYTC_VERSION is less than 4 or is not allowed: %d\n", - dytc_version); - return -ENODEV; - } + if (dytc_version < 4) { + dev_info(&priv->platform_device->dev, "DYTC_VERSION < 4 is not supported\n"); + return -ENODEV; + } + + if (dytc_version < 5 && + !(allow_v4_dytc || dmi_check_system(ideapad_dytc_v4_allow_table))) { + dev_info(&priv->platform_device->dev, + "DYTC_VERSION 4 support may not work. Pass ideapad_laptop.allow_v4_dytc=Y on the kernel commandline to enable\n"); + return -ENODEV; } priv->dytc = kzalloc(sizeof(*priv->dytc), GFP_KERNEL); |