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drm/nouveau: fix regression in vblanking 

nv50_vblank_enable/disable got switched from NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_0 (4) << head to 1 << head, which is wrong.

4 << head is the correct value.

Fixes regression with vblanking since 1d7c71a3e2 "drm/nouveau/disp: port vblank handling to event interface"

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Maarten Lankhorst 2013-03-05 14:59:26 +01:00 committed by Ben Skeggs
parent 94f54f5336
commit c8f28f8956
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
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@ -544,13 +544,13 @@ nv50_disp_curs_ofuncs = {
static void
nv50_disp_base_vblank_enable(struct nouveau_event *event, int head)
{
nv_mask(event->priv, 0x61002c, (1 << head), (1 << head));
nv_mask(event->priv, 0x61002c, (4 << head), (4 << head));
}
static void
nv50_disp_base_vblank_disable(struct nouveau_event *event, int head)
{
nv_mask(event->priv, 0x61002c, (1 << head), (0 << head));
nv_mask(event->priv, 0x61002c, (4 << head), 0);
}
static int