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drm/arm/malidp: Ensure that the crtcs are shutdown before removing any encoder/connector

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One needs to ensure that the crtcs are shutdown so that the
drm_crtc_state->connector_mask reflects that no connectors
are currently active. Further, it reduces the reference
count for each connector. This ensures that the connectors
and encoders can be cleanly removed either when _unbind
is called for the corresponding drivers or by
drm_mode_config_cleanup().
We need drm_atomic_helper_shutdown() to be called before
component_unbind_all() otherwise the connectors attached to the
component device will have the wrong reference count value and will not
be cleanly removed.

Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Ayan Kumar Halder 2018-04-20 15:44:57 +01:00 committed by Liviu Dudau
parent ce397d215c
commit 109c4d18e5
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/arm/malidp_drv.c
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@ -278,7 +278,6 @@ static int malidp_init(struct drm_device *drm)
static void malidp_fini(struct drm_device *drm)
{
drm_atomic_helper_shutdown(drm);
drm_mode_config_cleanup(drm);
}
@ -646,6 +645,7 @@ static int malidp_bind(struct device *dev)
malidp_de_irq_fini(drm);
drm->irq_enabled = false;
irq_init_fail:
drm_atomic_helper_shutdown(drm);
component_unbind_all(dev, drm);
bind_fail:
of_node_put(malidp->crtc.port);
@ -681,6 +681,7 @@ static void malidp_unbind(struct device *dev)
malidp_se_irq_fini(drm);
malidp_de_irq_fini(drm);
drm->irq_enabled = false;
drm_atomic_helper_shutdown(drm);
component_unbind_all(dev, drm);
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;