This is a note to let you know that I've just added the patch titled
drm/i915/quirks: Add inverted backlight quirk for HP 14-r206nv
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-quirks-add-inverted-backlight-quirk-for-hp-14-r206nv.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5e438bf7f9a1705ebcae5fa89cdbfbc6932a7871 Mon Sep 17 00:00:00 2001
From: Mavroudis Chatzilaridis <mavchatz@xxxxxxxxxxxxxx>
Date: Wed, 1 Feb 2023 18:51:25 +0000
Subject: drm/i915/quirks: Add inverted backlight quirk for HP 14-r206nv
From: Mavroudis Chatzilaridis <mavchatz@xxxxxxxxxxxxxx>
commit 5e438bf7f9a1705ebcae5fa89cdbfbc6932a7871 upstream.
This laptop uses inverted backlight PWM. Thus, without this quirk,
backlight brightness decreases as the brightness value increases and
vice versa.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8013
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mavroudis Chatzilaridis <mavchatz@xxxxxxxxxxxxxx>
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230201184947.8835-1-mavchatz@xxxxxxxxxxxxxx
(cherry picked from commit 83e7d6fd330d413cb2064e680ffea91b0512a520)
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_quirks.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/i915/display/intel_quirks.c
+++ b/drivers/gpu/drm/i915/display/intel_quirks.c
@@ -149,6 +149,8 @@ static struct intel_quirk intel_quirks[]
/* ECS Liva Q2 */
{ 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
{ 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
+ /* HP Notebook - 14-r206nv */
+ { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },
};
void intel_init_quirks(struct drm_i915_private *i915)
Patches currently in stable-queue which might be from mavchatz@xxxxxxxxxxxxxx are
queue-5.4/drm-i915-quirks-add-inverted-backlight-quirk-for-hp-14-r206nv.patch
