HSI: core: switch port event notifier from atomic to blocking
port events should be sent from process context after irq_safe runtime pm flag is removed in omap-ssi. Signed-off-By: Sebastian Reichel <sre@kernel.org> Tested-by: Pavel Machek <pavel@ucw.cz>
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@ -507,7 +507,7 @@ struct hsi_controller *hsi_alloc_controller(unsigned int n_ports, gfp_t flags)
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port[i]->stop_tx = hsi_dummy_cl;
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port[i]->stop_tx = hsi_dummy_cl;
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port[i]->release = hsi_dummy_cl;
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port[i]->release = hsi_dummy_cl;
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mutex_init(&port[i]->lock);
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mutex_init(&port[i]->lock);
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ATOMIC_INIT_NOTIFIER_HEAD(&port[i]->n_head);
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BLOCKING_INIT_NOTIFIER_HEAD(&port[i]->n_head);
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dev_set_name(&port[i]->device, "port%d", i);
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dev_set_name(&port[i]->device, "port%d", i);
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hsi->port[i]->device.release = hsi_port_release;
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hsi->port[i]->device.release = hsi_port_release;
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device_initialize(&hsi->port[i]->device);
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device_initialize(&hsi->port[i]->device);
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@ -689,7 +689,7 @@ int hsi_register_port_event(struct hsi_client *cl,
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cl->ehandler = handler;
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cl->ehandler = handler;
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cl->nb.notifier_call = hsi_event_notifier_call;
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cl->nb.notifier_call = hsi_event_notifier_call;
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return atomic_notifier_chain_register(&port->n_head, &cl->nb);
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return blocking_notifier_chain_register(&port->n_head, &cl->nb);
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}
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}
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EXPORT_SYMBOL_GPL(hsi_register_port_event);
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EXPORT_SYMBOL_GPL(hsi_register_port_event);
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@ -709,7 +709,7 @@ int hsi_unregister_port_event(struct hsi_client *cl)
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WARN_ON(!hsi_port_claimed(cl));
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WARN_ON(!hsi_port_claimed(cl));
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err = atomic_notifier_chain_unregister(&port->n_head, &cl->nb);
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err = blocking_notifier_chain_unregister(&port->n_head, &cl->nb);
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if (!err)
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if (!err)
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cl->ehandler = NULL;
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cl->ehandler = NULL;
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@ -734,7 +734,7 @@ EXPORT_SYMBOL_GPL(hsi_unregister_port_event);
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*/
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*/
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int hsi_event(struct hsi_port *port, unsigned long event)
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int hsi_event(struct hsi_port *port, unsigned long event)
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{
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{
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return atomic_notifier_call_chain(&port->n_head, event, NULL);
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return blocking_notifier_call_chain(&port->n_head, event, NULL);
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}
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}
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EXPORT_SYMBOL_GPL(hsi_event);
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EXPORT_SYMBOL_GPL(hsi_event);
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@ -246,7 +246,7 @@ struct hsi_port {
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int (*stop_tx)(struct hsi_client *cl);
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int (*stop_tx)(struct hsi_client *cl);
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int (*release)(struct hsi_client *cl);
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int (*release)(struct hsi_client *cl);
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/* private */
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/* private */
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struct atomic_notifier_head n_head;
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struct blocking_notifier_head n_head;
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};
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};
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#define to_hsi_port(dev) container_of(dev, struct hsi_port, device)
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#define to_hsi_port(dev) container_of(dev, struct hsi_port, device)
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