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Rev 6937 Rev 7144
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 * encoder chain.
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 * encoder chain.
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 *
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 *
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 * A bridge is always attached to a single &drm_encoder at a time, but can be
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 * A bridge is always attached to a single &drm_encoder at a time, but can be
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 * either connected to it directly, or through an intermediate bridge:
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 * either connected to it directly, or through an intermediate bridge:
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 *
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 *
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 * encoder ---> bridge B ---> bridge A
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 *     encoder ---> bridge B ---> bridge A
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 *
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 *
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 * Here, the output of the encoder feeds to bridge B, and that furthers feeds to
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 * Here, the output of the encoder feeds to bridge B, and that furthers feeds to
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 * bridge A.
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 * bridge A.
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 *
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 *
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 * The driver using the bridge is responsible to make the associations between
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 * The driver using the bridge is responsible to make the associations between
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	if (!bridge)
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	if (!bridge)
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		return;
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		return;
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	drm_bridge_disable(bridge->next);
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	drm_bridge_disable(bridge->next);
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	if (bridge->funcs->disable)
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	bridge->funcs->disable(bridge);
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		bridge->funcs->disable(bridge);
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}
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}
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EXPORT_SYMBOL(drm_bridge_disable);
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EXPORT_SYMBOL(drm_bridge_disable);
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void drm_bridge_post_disable(struct drm_bridge *bridge)
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void drm_bridge_post_disable(struct drm_bridge *bridge)
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{
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{
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	if (!bridge)
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	if (!bridge)
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		return;
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		return;
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	if (bridge->funcs->post_disable)
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	bridge->funcs->post_disable(bridge);
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		bridge->funcs->post_disable(bridge);
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	drm_bridge_post_disable(bridge->next);
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	drm_bridge_post_disable(bridge->next);
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	if (!bridge)
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	if (!bridge)
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		return;
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		return;
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	drm_bridge_pre_enable(bridge->next);
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	drm_bridge_pre_enable(bridge->next);
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	if (bridge->funcs->pre_enable)
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	bridge->funcs->pre_enable(bridge);
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		bridge->funcs->pre_enable(bridge);
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}
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}
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EXPORT_SYMBOL(drm_bridge_pre_enable);
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EXPORT_SYMBOL(drm_bridge_pre_enable);
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void drm_bridge_enable(struct drm_bridge *bridge)
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void drm_bridge_enable(struct drm_bridge *bridge)
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{
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{
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	if (!bridge)
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	if (!bridge)
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		return;
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		return;
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	if (bridge->funcs->enable)
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	bridge->funcs->enable(bridge);
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		bridge->funcs->enable(bridge);
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	drm_bridge_enable(bridge->next);
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	drm_bridge_enable(bridge->next);