diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2015-12-01 20:41:33 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2015-12-01 20:41:33 +0000 |
| commit | ea4c07ecdc685e9cb838db688931a431e0199c74 (patch) | |
| tree | 0d5297086b480ae914cdeabff2c4319c45cd57b6 /sys | |
| parent | 1d477f68fa838d43d89a8ab40b6e6bb3e78743b9 (diff) | |
Enable the GSE interrupt on Broadwell. Fixes acpi brightness control on
the MacBookPro12,1, 3rd gen Lenovo X1 Carbon (when hacked to use the standard
acpi mechanism for this purpose) and probably many others. Seems this
hasn't been figured out over in Linux land yet.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/drm/i915/i915_irq.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/i915/i915_irq.c b/sys/dev/pci/drm/i915/i915_irq.c index 022566ebe28..a83404ef141 100644 --- a/sys/dev/pci/drm/i915/i915_irq.c +++ b/sys/dev/pci/drm/i915/i915_irq.c @@ -1,4 +1,4 @@ -/* $OpenBSD: i915_irq.c,v 1.29 2015/09/23 23:12:12 kettenis Exp $ */ +/* $OpenBSD: i915_irq.c,v 1.30 2015/12/01 20:41:32 kettenis Exp $ */ /* i915_irq.c -- IRQ support for the I915 -*- linux-c -*- */ /* @@ -3019,6 +3019,10 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) I915_WRITE(GEN8_DE_PORT_IMR, ~GEN8_AUX_CHANNEL_A); I915_WRITE(GEN8_DE_PORT_IER, GEN8_AUX_CHANNEL_A); POSTING_READ(GEN8_DE_PORT_IER); + + I915_WRITE(GEN8_DE_MISC_IMR, ~GEN8_DE_MISC_GSE); + I915_WRITE(GEN8_DE_MISC_IER, GEN8_DE_MISC_GSE); + POSTING_READ(GEN8_DE_MISC_IER); } static int gen8_irq_postinstall(struct drm_device *dev) |