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drm: nouveau: use crtc helper drm_crtc_from_index()

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Use drm_crtc_from_index() to find drm_crtc for given index.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1483961145-18453-5-git-send-email-shawnguo@kernel.org
This commit is contained in:
Shawn Guo 2017-01-09 19:25:43 +08:00 committed by Sean Paul
parent ffec892583
commit ea441bd33f
1 changed files with 18 additions and 15 deletions
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33
drivers/gpu/drm/nouveau/nouveau_display.c
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@ -58,27 +58,30 @@ int
nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
{
struct drm_crtc *crtc;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (nv_crtc->index == pipe) {
nvif_notify_get(&nv_crtc->vblank);
return 0;
}
}
return -EINVAL;
struct nouveau_crtc *nv_crtc;
crtc = drm_crtc_from_index(dev, pipe);
if (!crtc)
return -EINVAL;
nv_crtc = nouveau_crtc(crtc);
nvif_notify_get(&nv_crtc->vblank);
return 0;
}
void
nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
{
struct drm_crtc *crtc;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (nv_crtc->index == pipe) {
nvif_notify_put(&nv_crtc->vblank);
return;
}
}
struct nouveau_crtc *nv_crtc;
crtc = drm_crtc_from_index(dev, pipe);
if (!crtc)
return;
nv_crtc = nouveau_crtc(crtc);
nvif_notify_put(&nv_crtc->vblank);
}
static inline int