mirror of https://gitee.com/openkylin/linux.git
Revert "drm/i915: assume all GM45 Acer laptops use inverted backlight PWM"
My Acer 8510TZ stops displaying anything when X starts with Linus' current tree. I bisected it down to commitee1452d745
. This patch reverts commitee1452d745
. After the revert, everything works as before. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Reported-by: Dylan Borg <borgdylan@hotmail.com> (for a Acer Extensa 5635Z) Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -10541,11 +10541,20 @@ static struct intel_quirk intel_quirks[] = {
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/* Sony Vaio Y cannot use SSC on LVDS */
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{ 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
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/*
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* All GM45 Acer (and its brands eMachines and Packard Bell) laptops
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* seem to use inverted backlight PWM.
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*/
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{ 0x2a42, 0x1025, PCI_ANY_ID, quirk_invert_brightness },
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/* Acer Aspire 5734Z must invert backlight brightness */
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{ 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
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/* Acer/eMachines G725 */
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{ 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
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/* Acer/eMachines e725 */
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{ 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
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/* Acer/Packard Bell NCL20 */
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{ 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
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/* Acer Aspire 4736Z */
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{ 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
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/* Dell XPS13 HD Sandy Bridge */
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{ 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable },
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