This is a note to let you know that I've just added the patch titled
platform/x86: dell-laptop: Fix keyboard max lighting for Dell Latitude E6410
to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: platform-x86-dell-laptop-fix-keyboard-max-lighting-for-dell-latitude-e6410.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Fri Feb 23 11:45:09 CET 2018
From: "Pali Rohár" pali.rohar@gmail.com Date: Thu, 2 Nov 2017 21:25:24 +0100 Subject: platform/x86: dell-laptop: Fix keyboard max lighting for Dell Latitude E6410
From: "Pali Rohár" pali.rohar@gmail.com
[ Upstream commit 68a213d325c23d39f109f4c7c824b906a7d209de ]
This machine reports number of keyboard backlight led levels, instead of value of the last led level index. Therefore max_brightness properly needs to be subtracted by 1 to match led max_brightness API.
Signed-off-by: Pali Rohár pali.rohar@gmail.com Reported-by: Gabriel M. Elder gabriel@tekgnowsys.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=196913 Signed-off-by: Darren Hart (VMware) dvhart@infradead.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/platform/x86/dell-laptop.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
--- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -49,6 +49,7 @@
struct quirk_entry { u8 touchpad_led; + u8 kbd_led_levels_off_1;
int needs_kbd_timeouts; /* @@ -79,6 +80,10 @@ static struct quirk_entry quirk_dell_xps .kbd_timeouts = { 0, 5, 15, 60, 5 * 60, 15 * 60, -1 }, };
+static struct quirk_entry quirk_dell_latitude_e6410 = { + .kbd_led_levels_off_1 = 1, +}; + static struct platform_driver platform_driver = { .driver = { .name = "dell-laptop", @@ -280,6 +285,15 @@ static const struct dmi_system_id dell_q }, .driver_data = &quirk_dell_xps13_9333, }, + { + .callback = dmi_matched, + .ident = "Dell Latitude E6410", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6410"), + }, + .driver_data = &quirk_dell_latitude_e6410, + }, { } };
@@ -1200,6 +1214,9 @@ static int kbd_get_info(struct kbd_info units = (buffer->output[2] >> 8) & 0xFF; info->levels = (buffer->output[2] >> 16) & 0xFF;
+ if (quirks && quirks->kbd_led_levels_off_1 && info->levels) + info->levels--; + if (units & BIT(0)) info->seconds = (buffer->output[3] >> 0) & 0xFF; if (units & BIT(1))
Patches currently in stable-queue which might be from pali.rohar@gmail.com are
queue-4.14/platform-x86-dell-laptop-fix-keyboard-max-lighting-for-dell-latitude-e6410.patch