drm/i915/quirks: Add inverted backlight quirk for HP 14-r206nv

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@vger.kernel.org
Signed-off-by: Mavroudis Chatzilaridis <mavchatz@protonmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230201184947.8835-1-mavchatz@protonmail.com
(cherry picked from commit 83e7d6fd330d413cb2064e680ffea91b0512a520)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/i915/display/intel_quirks.c b/drivers/gpu/drm/i915/display/intel_quirks.c
index d79314992adadc4da8b2149d1c93020b395b4d05..59f02f39e952492f2a973e23f1fef7de515a0a9d 100644 (file)
--- 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)