platform/x86: dell-laptop: disable kbd backlight on Inspiron 10xx
[ Upstream commit 10b65e2915
]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
parent
21fd877300
commit
f8aaefd551
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@ -33,6 +33,7 @@
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struct quirk_entry {
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bool touchpad_led;
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bool kbd_led_not_present;
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bool kbd_led_levels_off_1;
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bool kbd_missing_ac_tag;
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@ -73,6 +74,10 @@ static struct quirk_entry quirk_dell_latitude_e6410 = {
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.kbd_led_levels_off_1 = true,
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};
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static struct quirk_entry quirk_dell_inspiron_1012 = {
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.kbd_led_not_present = true,
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};
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static struct platform_driver platform_driver = {
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.driver = {
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.name = "dell-laptop",
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@ -310,6 +315,24 @@ static const struct dmi_system_id dell_quirks[] __initconst = {
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},
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.driver_data = &quirk_dell_latitude_e6410,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron 1012",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
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},
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.driver_data = &quirk_dell_inspiron_1012,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron 1018",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1018"),
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},
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.driver_data = &quirk_dell_inspiron_1012,
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},
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{ }
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};
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@ -1493,6 +1516,9 @@ static void kbd_init(void)
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{
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int ret;
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if (quirks && quirks->kbd_led_not_present)
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return;
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ret = kbd_init_info();
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kbd_init_tokens();
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