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DRM/i915: Add QUIRK_INVERT_BRIGHTNESS for NCR machines. 

NCR machines with LVDS panels using Intel chipsets need to have the
QUIRK_INVERT_BRIGHTNESS bit set.
Unfortunately NCR doesn't set a meaningful subvendor/subdevice ID,
therefore we add a DMI dependent quirk list.

Signed-off-by: Egbert Eich <eich@suse.de>
[danvet: fixup whitespace fail.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Egbert Eich 2012-10-14 15:46:38 +02:00 committed by Daniel Vetter
parent 6478d414fe
commit 5f85f176c2
1 changed files with 32 additions and 0 deletions
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32
drivers/gpu/drm/i915/intel_display.c
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@ -7892,6 +7892,34 @@ struct intel_quirk {
void (*hook)(struct drm_device *dev);
};
/* For systems that don't have a meaningful PCI subdevice/subvendor ID */
struct intel_dmi_quirk {
void (*hook)(struct drm_device *dev);
const struct dmi_system_id (*dmi_id_list)[];
};
static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
{
DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
return 1;
}
static const struct intel_dmi_quirk intel_dmi_quirks[] = {
{
.dmi_id_list = &(const struct dmi_system_id[]) {
{
.callback = intel_dmi_reverse_brightness,
.ident = "NCR Corporation",
.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
DMI_MATCH(DMI_PRODUCT_NAME, ""),
},
},
{ } /* terminating entry */
},
.hook = quirk_invert_brightness,
},
};
static struct intel_quirk intel_quirks[] = {
/* HP Mini needs pipe A force quirk (LP: #322104) */
{ 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
@ -7931,6 +7959,10 @@ static void intel_init_quirks(struct drm_device *dev)
q->subsystem_device == PCI_ANY_ID))
q->hook(dev);
}
for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
intel_dmi_quirks[i].hook(dev);
}
}
/* Disable the VGA plane that we never use */