3.5.7.11 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Egbert Eich <[email protected]> commit 5f85f176c2f1c9d2a23f60ca0b99e4d0aa5a26a7 upstream. 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 <[email protected]> [danvet: fixup whitespace fail.] Signed-off-by: Daniel Vetter <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- drivers/gpu/drm/i915/intel_display.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1f06ab4..16c6d6b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6881,6 +6881,34 @@ 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 }, @@ -6929,6 +6957,10 @@ 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 */ -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
