77 lines
2.4 KiB
Diff
77 lines
2.4 KiB
Diff
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From e6a7379fcb5702da681d7da8e9d9a2a26cc6fa85 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Timur=20Krist=C3=B3f?= <timur.kristof@gmail.com>
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Date: Fri, 1 Jun 2018 12:32:56 +0200
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Subject: [PATCH] platform/x86: dell-laptop: Fix keyboard backlight timeout on
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XPS 13 9370
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The XPS 13 9370 doesn't expose the necessary KBD_LED_AC_TOKEN in
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the BIOS, so the driver thinks it cannot adjust the AC keyboard
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backlight timeout. This patch adds a quirk to fix this until
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Dell adds the missing token to the BIOS.
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For further discussion, see:
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https://github.com/dell/libsmbios/issues/48
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Signed-off-by: Timur Kristóf <venemo@fedoraproject.org>
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Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Signed-off-by: Jeremy Cline <jcline@redhat.com>
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---
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drivers/platform/x86/dell-laptop.c | 17 ++++++++++++++++-
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1 file changed, 16 insertions(+), 1 deletion(-)
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diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
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index c52c6723374b..f1fa8612db40 100644
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--- a/drivers/platform/x86/dell-laptop.c
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+++ b/drivers/platform/x86/dell-laptop.c
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@@ -38,6 +38,7 @@
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struct quirk_entry {
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bool touchpad_led;
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bool kbd_led_levels_off_1;
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+ bool kbd_missing_ac_tag;
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bool needs_kbd_timeouts;
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/*
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@@ -68,6 +69,10 @@ static struct quirk_entry quirk_dell_xps13_9333 = {
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.kbd_timeouts = { 0, 5, 15, 60, 5 * 60, 15 * 60, -1 },
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};
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+static struct quirk_entry quirk_dell_xps13_9370 = {
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+ .kbd_missing_ac_tag = true,
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+};
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+
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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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@@ -291,6 +296,15 @@ static const struct dmi_system_id dell_quirks[] __initconst = {
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},
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.driver_data = &quirk_dell_xps13_9333,
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},
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+ {
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+ .callback = dmi_matched,
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+ .ident = "Dell XPS 13 9370",
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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, "XPS 13 9370"),
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+ },
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+ .driver_data = &quirk_dell_xps13_9370,
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+ },
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{
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.callback = dmi_matched,
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.ident = "Dell Latitude E6410",
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@@ -1401,7 +1415,8 @@ static inline int kbd_init_info(void)
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* timeout value which is shared for both battery and AC power
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* settings. So do not try to set AC values on old models.
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*/
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- if (dell_smbios_find_token(KBD_LED_AC_TOKEN))
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+ if ((quirks && quirks->kbd_missing_ac_tag) ||
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+ dell_smbios_find_token(KBD_LED_AC_TOKEN))
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kbd_timeout_ac_supported = true;
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kbd_get_state(&state);
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--
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2.17.1
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