openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

platform/x86: dell-laptop: Fix keyboard backlight timeout on XPS 13 9370 

The XPS 13 9370 doesn't expose the necessary KBD_LED_AC_TOKEN in
the BIOS, so the driver thinks it cannot adjust the AC keyboard
backlight timeout. This patch adds a quirk to fix this until
Dell adds the missing token to the BIOS.

For further discussion, see:
https://github.com/dell/libsmbios/issues/48

Signed-off-by: Timur Kristóf <venemo@fedoraproject.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Timur Kristóf 2018-06-01 12:32:56 +02:00 committed by Andy Shevchenko
parent 64b824649b
commit e6a7379fcb
1 changed files with 16 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/platform/x86/dell-laptop.c
View File

@ -38,6 +38,7 @@
struct quirk_entry {
bool touchpad_led;
bool kbd_led_levels_off_1;
bool kbd_missing_ac_tag;
bool needs_kbd_timeouts;
/*
@ -68,6 +69,10 @@ static struct quirk_entry quirk_dell_xps13_9333 = {
.kbd_timeouts = { 0, 5, 15, 60, 5 * 60, 15 * 60, -1 },
};
static struct quirk_entry quirk_dell_xps13_9370 = {
.kbd_missing_ac_tag = true,
};
static struct quirk_entry quirk_dell_latitude_e6410 = {
.kbd_led_levels_off_1 = true,
};
@ -291,6 +296,15 @@ static const struct dmi_system_id dell_quirks[] __initconst = {
},
.driver_data = &quirk_dell_xps13_9333,
},
{
.callback = dmi_matched,
.ident = "Dell XPS 13 9370",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9370"),
},
.driver_data = &quirk_dell_xps13_9370,
},
{
.callback = dmi_matched,
.ident = "Dell Latitude E6410",
@ -1401,7 +1415,8 @@ static inline int kbd_init_info(void)
* timeout value which is shared for both battery and AC power
* settings. So do not try to set AC values on old models.
*/
if (dell_smbios_find_token(KBD_LED_AC_TOKEN))
if ((quirks && quirks->kbd_missing_ac_tag) ||
dell_smbios_find_token(KBD_LED_AC_TOKEN))
kbd_timeout_ac_supported = true;
kbd_get_state(&state);