10  * protocol modes: data-transfer and doorbell, to be used on those channel
150 	DOORBELL = 0,  enumerator
224  * @doorbell:	Doorbell bit number within the ch_wn_idx window, only relevant
225  *		in DOORBELL protocol.
226  * @pending:	Flag indicating pending doorbell interrupt, only relevant in
227  *		DOORBELL protocol.
235 			u32 doorbell;  member
259 /* =================== Doorbell transport protocol operations =============== */
265 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_rx_startup()
275 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_rx_shutdown()
283 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_read_data()
294 		 BIT(priv->doorbell));  in mhuv2_doorbell_last_tx_done()
306 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_send_data()
518 				if (protocol == DOORBELL)  in get_irq_chan_comb()
527 			/* Return first chan of the window in doorbell mode */  in get_irq_chan_comb()
528 			if (protocol == DOORBELL)  in get_irq_chan_comb()
568 	/* Clear the interrupt first, so we don't miss any doorbell later */  in mhuv2_sender_interrupt()
572 	 * In Doorbell mode, make sure no new transitions happen while the  in mhuv2_sender_interrupt()
573 	 * interrupt handler is trying to find the finished doorbell tx  in mhuv2_sender_interrupt()
580 	 * In case of doorbell mode, the first channel of the window is returned  in mhuv2_sender_interrupt()
593 …dev_warn(dev, "Tx interrupt received on doorbell (%u : %u) channel not currently attached to a mai…  in mhuv2_sender_interrupt()
608 		 * We may have already processed the doorbell in the previous  in mhuv2_sender_interrupt()
612 		dev_dbg(dev, "Couldn't find the doorbell (%u) for the Tx interrupt interrupt\n",  in mhuv2_sender_interrupt()
635 	 * In case of doorbell mode, the first channel of the window is returned  in get_irq_chan_comb_rx()
796 	int channel = 0, i, offset, doorbell, protocol, windows;  in mhuv2_mbox_of_xlate()  local
802 	doorbell = pa->args[1];  in mhuv2_mbox_of_xlate()
803 	if (doorbell >= MHUV2_STAT_BITS)  in mhuv2_mbox_of_xlate()
810 		if (protocol == DOORBELL) {  in mhuv2_mbox_of_xlate()
812 				return &chans[channel + MHUV2_STAT_BITS * offset + doorbell];  in mhuv2_mbox_of_xlate()
818 				if (doorbell)  in mhuv2_mbox_of_xlate()
831 		pa->args[0], doorbell);  in mhuv2_mbox_of_xlate()
850 		if (protocol == DOORBELL) {  in mhuv2_verify_protocol()
911 				priv->doorbell = k;  in mhuv2_allocate_channels()
917 			 * control it per doorbell.  in mhuv2_allocate_channels()