diff options
| author | Egbert Eich <eich@suse.de> | 2012-10-14 15:46:38 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-10-16 09:38:59 +0200 |
| commit | 5f85f176c2f1c9d2a23f60ca0b99e4d0aa5a26a7 (patch) | |
| tree | 5b2e31beb1b4766a49de470b15d02dc4d197fbe3 /drivers/gpu | |
| parent | 6478d414fe4ee3114e760fb6d6df0f8e2f66186a (diff) | |
| download | linux-5f85f176c2f1c9d2a23f60ca0b99e4d0aa5a26a7.tar.bz2 | |
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>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3511effa01ec..68495da433e6 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -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 */ |