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| author | Pacien TRAN-GIRARD <pacien.trangirard@pacien.net> | 2019-09-27 23:19:03 +0200 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-10-15 09:55:09 +0200 |
| commit | 10b65e2915b2fcc606d173e98a972850101fb4c4 (patch) | |
| tree | 44c05dd54a1a5677794f9aeecadb2c6adfc504d9 | |
| parent | platform/x86: huawei-wmi: Add debugfs support (diff) | |
| download | linux-10b65e2915b2fcc606d173e98a972850101fb4c4.tar.xz linux-10b65e2915b2fcc606d173e98a972850101fb4c4.zip | |
platform/x86: dell-laptop: disable kbd backlight on Inspiron 10xx
This patch adds a quirk disabling keyboard backlight support for the
Dell Inspiron 1012 and 1018.
Those models wrongly report supporting keyboard backlight control
features (through SMBIOS tokens) even though they're not equipped with
a backlit keyboard. This led to broken controls being exposed
through sysfs by this driver which froze the system when used.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=107651
Signed-off-by: Pacien TRAN-GIRARD <pacien.trangirard@pacien.net>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| -rw-r--r-- | drivers/platform/x86/dell-laptop.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index d27be2836bc2..74e988f839e8 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -33,6 +33,7 @@ struct quirk_entry { bool touchpad_led; + bool kbd_led_not_present; bool kbd_led_levels_off_1; bool kbd_missing_ac_tag; @@ -73,6 +74,10 @@ static struct quirk_entry quirk_dell_latitude_e6410 = { .kbd_led_levels_off_1 = true, }; +static struct quirk_entry quirk_dell_inspiron_1012 = { + .kbd_led_not_present = true, +}; + static struct platform_driver platform_driver = { .driver = { .name = "dell-laptop", @@ -310,6 +315,24 @@ static const struct dmi_system_id dell_quirks[] __initconst = { }, .driver_data = &quirk_dell_latitude_e6410, }, + { + .callback = dmi_matched, + .ident = "Dell Inspiron 1012", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"), + }, + .driver_data = &quirk_dell_inspiron_1012, + }, + { + .callback = dmi_matched, + .ident = "Dell Inspiron 1018", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1018"), + }, + .driver_data = &quirk_dell_inspiron_1012, + }, { } }; @@ -1493,6 +1516,9 @@ static void kbd_init(void) { int ret; + if (quirks && quirks->kbd_led_not_present) + return; + ret = kbd_init_info(); kbd_init_tokens(); |