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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-04-19 23:10:58 +0100 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-05-10 13:19:13 -0700 |
| commit | 7173188d5d5e50b95c588dbae3b3bc78fde4138e (patch) | |
| tree | 2659db8e43421bdc75e0406796a446b12fd82708 /drivers/gpu/drm/i915/intel_display.c | |
| parent | b259f6730c09bc356df932ba9188f291de816808 (diff) | |
| download | lwn-7173188d5d5e50b95c588dbae3b3bc78fde4138e.tar.gz lwn-7173188d5d5e50b95c588dbae3b3bc78fde4138e.zip | |
drm/i915: Simplify return value from intel_get_load_detect_pipe
... and so remove the confusion as to whether to use the returned crtc
or intel_encoder->base.crtc with the subsequent load-detection. Even
though they were the same, the two instances of load-detection code
disagreed over which was the more correct.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 373c2a005ec1..228621d07743 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5481,10 +5481,10 @@ static struct drm_display_mode load_detect_mode = { 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), }; -struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, - struct drm_connector *connector, - struct drm_display_mode *mode, - int *dpms_mode) +bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, + struct drm_connector *connector, + struct drm_display_mode *mode, + int *dpms_mode) { struct intel_crtc *intel_crtc; struct drm_crtc *possible_crtc; @@ -5517,7 +5517,7 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); } - return crtc; + return true; } /* Find an unused one (if possible) */ @@ -5537,7 +5537,8 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, * If we didn't find an unused CRTC, don't use any. */ if (!crtc) { - return NULL; + DRM_DEBUG_KMS("no pipe available for load-detect\n"); + return false; } encoder->crtc = crtc; @@ -5561,10 +5562,11 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, encoder_funcs->mode_set(encoder, &crtc->mode, &crtc->mode); encoder_funcs->commit(encoder); } + /* let the connector get through one full cycle before testing */ intel_wait_for_vblank(dev, intel_crtc->pipe); - return crtc; + return true; } void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, |