10  * protocol modes: data-transfer and doorbell, to be used on those channel
150 	DOORBELL = 0,  enumerator
223  * @doorbell:	Doorbell bit number within the ch_wn_idx window, only relevant
224  *		in DOORBELL protocol.
225  * @pending:	Flag indicating pending doorbell interrupt, only relevant in
226  *		DOORBELL protocol.
234 			u32 doorbell;  member
258 /* =================== Doorbell transport protocol operations =============== */
264 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_rx_startup()
274 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_rx_shutdown()
282 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_read_data()
293 		 BIT(priv->doorbell));  in mhuv2_doorbell_last_tx_done()
305 	writel_relaxed(BIT(priv->doorbell),  in mhuv2_doorbell_send_data()
517 				if (protocol == DOORBELL)  in get_irq_chan_comb()
526 			/* Return first chan of the window in doorbell mode */  in get_irq_chan_comb()
527 			if (protocol == DOORBELL)  in get_irq_chan_comb()
567 	/* Clear the interrupt first, so we don't miss any doorbell later */  in mhuv2_sender_interrupt()
571 	 * In Doorbell mode, make sure no new transitions happen while the  in mhuv2_sender_interrupt()
572 	 * interrupt handler is trying to find the finished doorbell tx  in mhuv2_sender_interrupt()
579 	 * In case of doorbell mode, the first channel of the window is returned  in mhuv2_sender_interrupt()
592 …dev_warn(dev, "Tx interrupt received on doorbell (%u : %u) channel not currently attached to a mai…  in mhuv2_sender_interrupt()
607 		 * We may have already processed the doorbell in the previous  in mhuv2_sender_interrupt()
611 		dev_dbg(dev, "Couldn't find the doorbell (%u) for the Tx interrupt interrupt\n",  in mhuv2_sender_interrupt()
634 	 * In case of doorbell mode, the first channel of the window is returned  in get_irq_chan_comb_rx()
795 	int channel = 0, i, offset, doorbell, protocol, windows;  in mhuv2_mbox_of_xlate()  local
801 	doorbell = pa->args[1];  in mhuv2_mbox_of_xlate()
802 	if (doorbell >= MHUV2_STAT_BITS)  in mhuv2_mbox_of_xlate()
809 		if (protocol == DOORBELL) {  in mhuv2_mbox_of_xlate()
811 				return &chans[channel + MHUV2_STAT_BITS * offset + doorbell];  in mhuv2_mbox_of_xlate()
817 				if (doorbell)  in mhuv2_mbox_of_xlate()
830 		pa->args[0], doorbell);  in mhuv2_mbox_of_xlate()
849 		if (protocol == DOORBELL) {  in mhuv2_verify_protocol()
910 				priv->doorbell = k;  in mhuv2_allocate_channels()
916 			 * control it per doorbell.  in mhuv2_allocate_channels()