From 8676c0f98777054cc918781ae38e35a965a3cf59 Mon Sep 17 00:00:00 2001 From: Carsten Emde Date: Thu, 15 Mar 2012 15:56:27 +0100 Subject: [PATCH] drm/i915: panel: invert brightness acer aspire 5734z Mark the Acer Aspire 5734Z that this machines requires the module to invert the panel backlight brightness value after reading from and prior to writing to the PCI configuration space. Signed-off-by: Carsten Emde Acked-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 92208f8d35125..683002fb63d17 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9021,7 +9021,8 @@ static void quirk_ssc_force_disable(struct drm_device *dev) } /* - * A machine may need to invert the panel backlight brightness value + * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight + * brightness value */ static void quirk_invert_brightness(struct drm_device *dev) { @@ -9061,6 +9062,9 @@ struct intel_quirk intel_quirks[] = { /* Sony Vaio Y cannot use SSC on LVDS */ { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, + + /* Acer Aspire 5734Z must invert backlight brightness */ + { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, }; static void intel_init_quirks(struct drm_device *dev) -- 2.39.5