112 static bool tegra_hsp_doorbell_can_ring(struct tegra_hsp_doorbell *db)  in tegra_hsp_doorbell_can_ring()  argument
116 	value = tegra_hsp_channel_readl(&db->channel, HSP_DB_ENABLE);  in tegra_hsp_doorbell_can_ring()
136 	struct tegra_hsp_doorbell *db;  in tegra_hsp_doorbell_get()  local
140 	db = __tegra_hsp_doorbell_get(hsp, master);  in tegra_hsp_doorbell_get()
143 	return db;  in tegra_hsp_doorbell_get()
149 	struct tegra_hsp_doorbell *db;  in tegra_hsp_doorbell_irq()  local
152 	db = tegra_hsp_doorbell_get(hsp, TEGRA_HSP_DB_MASTER_CCPLEX);  in tegra_hsp_doorbell_irq()
153 	if (!db)  in tegra_hsp_doorbell_irq()
156 	value = tegra_hsp_channel_readl(&db->channel, HSP_DB_PENDING);  in tegra_hsp_doorbell_irq()
157 	tegra_hsp_channel_writel(&db->channel, value, HSP_DB_PENDING);  in tegra_hsp_doorbell_irq()
162 		struct tegra_hsp_doorbell *db;  in tegra_hsp_doorbell_irq()  local
164 		db = __tegra_hsp_doorbell_get(hsp, master);  in tegra_hsp_doorbell_irq()
170 		 * In that case, db->channel.chan will still be NULL here and  in tegra_hsp_doorbell_irq()
176 		if (db && db->channel.chan)  in tegra_hsp_doorbell_irq()
177 			mbox_chan_received_data(db->channel.chan, NULL);  in tegra_hsp_doorbell_irq()
189 	struct tegra_hsp_doorbell *db;  in tegra_hsp_doorbell_create()  local
193 	db = kzalloc(sizeof(*db), GFP_KERNEL);  in tegra_hsp_doorbell_create()
194 	if (!db)  in tegra_hsp_doorbell_create()
200 	db->channel.regs = hsp->regs + offset;  in tegra_hsp_doorbell_create()
201 	db->channel.hsp = hsp;  in tegra_hsp_doorbell_create()
203 	db->name = kstrdup_const(name, GFP_KERNEL);  in tegra_hsp_doorbell_create()
204 	db->master = master;  in tegra_hsp_doorbell_create()
205 	db->index = index;  in tegra_hsp_doorbell_create()
208 	list_add_tail(&db->list, &hsp->doorbells);  in tegra_hsp_doorbell_create()
211 	return &db->channel;  in tegra_hsp_doorbell_create()
214 static void __tegra_hsp_doorbell_destroy(struct tegra_hsp_doorbell *db)  in __tegra_hsp_doorbell_destroy()  argument
216 	list_del(&db->list);  in __tegra_hsp_doorbell_destroy()
217 	kfree_const(db->name);  in __tegra_hsp_doorbell_destroy()
218 	kfree(db);  in __tegra_hsp_doorbell_destroy()
223 	struct tegra_hsp_doorbell *db = chan->con_priv;  in tegra_hsp_doorbell_send_data()  local
225 	tegra_hsp_channel_writel(&db->channel, 1, HSP_DB_TRIGGER);  in tegra_hsp_doorbell_send_data()
232 	struct tegra_hsp_doorbell *db = chan->con_priv;  in tegra_hsp_doorbell_startup()  local
233 	struct tegra_hsp *hsp = db->channel.hsp;  in tegra_hsp_doorbell_startup()
238 	if (db->master >= hsp->mbox.num_chans) {  in tegra_hsp_doorbell_startup()
241 			db->master);  in tegra_hsp_doorbell_startup()
249 	if (!tegra_hsp_doorbell_can_ring(db))  in tegra_hsp_doorbell_startup()
255 	value |= BIT(db->master);  in tegra_hsp_doorbell_startup()
265 	struct tegra_hsp_doorbell *db = chan->con_priv;  in tegra_hsp_doorbell_shutdown()  local
266 	struct tegra_hsp *hsp = db->channel.hsp;  in tegra_hsp_doorbell_shutdown()
278 	value &= ~BIT(db->master);  in tegra_hsp_doorbell_shutdown()
297 	struct tegra_hsp_doorbell *db;  in of_tegra_hsp_xlate()  local
304 		db = tegra_hsp_doorbell_get(hsp, master);  in of_tegra_hsp_xlate()
305 		if (db)  in of_tegra_hsp_xlate()
306 			channel = &db->channel;  in of_tegra_hsp_xlate()
337 	struct tegra_hsp_doorbell *db, *tmp;  in tegra_hsp_remove_doorbells()  local
342 	list_for_each_entry_safe(db, tmp, &hsp->doorbells, list)  in tegra_hsp_remove_doorbells()
343 		__tegra_hsp_doorbell_destroy(db);  in tegra_hsp_remove_doorbells()