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authorAlex Deucher <alexdeucher@gmail.com>2010-06-11 17:04:35 -0400
committerDave Airlie <airlied@redhat.com>2010-07-07 18:38:32 +1000
commit5c8d7171cc4984351af802a525675d50ae555a7b (patch)
treeed6337bff7e94fb3d2ef5fe96bd70e8882d6991e
parenta907a2e7d287f2b89fd81bc8edf164c0008c624f (diff)
downloadop-kernel-dev-5c8d7171cc4984351af802a525675d50ae555a7b.zip
op-kernel-dev-5c8d7171cc4984351af802a525675d50ae555a7b.tar.gz
drm/kms: add crtc disable function
More explicit than dpms. Same as the encoder disable function. Need this to explicity disconnect plls from crtcs for reuse when you plls:crtcs ratio isn't 1:1. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--drivers/gpu/drm/drm_crtc_helper.c5
-rw-r--r--include/drm/drm_crtc_helper.h3
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 9b2a541..fa1323f 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -241,7 +241,10 @@ void drm_helper_disable_unused_functions(struct drm_device *dev)
struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
crtc->enabled = drm_helper_crtc_in_use(crtc);
if (!crtc->enabled) {
- crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+ if (crtc_funcs->disable)
+ (*crtc_funcs->disable)(crtc);
+ else
+ (*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF);
crtc->fb = NULL;
}
}
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 1121f77..7e3c976 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -63,6 +63,9 @@ struct drm_crtc_helper_funcs {
/* reload the current crtc LUT */
void (*load_lut)(struct drm_crtc *crtc);
+
+ /* disable crtc when not in use - more explicit than dpms off */
+ void (*disable)(struct drm_crtc *crtc);
};
struct drm_encoder_helper_funcs {
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