diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-07-26 19:21:47 +0200 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-09-06 08:21:29 +0200 |
commit | a261b246ebd552fd5d5a8ed84cc931bb821c427f (patch) | |
tree | 4264fae93788af65075c207280f8555b8521548c | |
parent | ea9d758d6ddb9f4bb9639619100743e8f5fa85a0 (diff) |
drm/i915: disable all crtcs at suspend time
We need this to avoid confusing the hw state readout code with the cpt
pch plls at resume time: We'd read the new pipe state (which is
disabled), but still believe that we have a life pll connected to that
pipe (from before the suspend). Hence properly disable pipes to clear
out all the residual state.
This has the neat side-effect that we don't enable ports prematurely
by restoring bogus state from the saved register values.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 10 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 1 |
3 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 4abac6d6c3e6..fe7512ae3945 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -470,6 +470,9 @@ static int i915_drm_freeze(struct drm_device *dev) "GEM idle failed, resume might fail\n"); return error; } + + intel_modeset_disable(dev); + drm_irq_uninstall(dev); } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 2a393cbe6173..4c0ec180564f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3545,6 +3545,16 @@ static void intel_crtc_disable(struct drm_crtc *crtc) } } +void intel_modeset_disable(struct drm_device *dev) +{ + struct drm_crtc *crtc; + + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + if (crtc->enabled) + intel_crtc_disable(crtc); + } +} + void intel_encoder_noop(struct drm_encoder *encoder) { } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index d03e77752157..2061399d92c1 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -446,6 +446,7 @@ struct intel_set_config { extern bool intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, int x, int y, struct drm_framebuffer *old_fb); +extern void intel_modeset_disable(struct drm_device *dev); extern void intel_crtc_load_lut(struct drm_crtc *crtc); extern void intel_crtc_update_dpms(struct drm_crtc *crtc); extern void intel_encoder_noop(struct drm_encoder *encoder); |