189 	/* Is this a dedicated pchan? */
196 	struct sun4i_dma_pchan		*pchan;  member
311 	struct sun4i_dma_pchan *pchan = NULL, *pchans = priv->pchans;  in find_and_use_pchan()  local
329 		pchan = &pchans[i];  in find_and_use_pchan()
330 		pchan->vchan = vchan;  in find_and_use_pchan()
336 	return pchan;  in find_and_use_pchan()
340 			  struct sun4i_dma_pchan *pchan)  in release_pchan()  argument
343 	int nr = pchan - priv->pchans;  in release_pchan()
347 	pchan->vchan = NULL;  in release_pchan()
353 static void configure_pchan(struct sun4i_dma_pchan *pchan,  in configure_pchan()  argument
360 	if (pchan->is_dedicated) {  in configure_pchan()
361 		writel_relaxed(d->src, pchan->base + SUN4I_DDMA_SRC_ADDR_REG);  in configure_pchan()
362 		writel_relaxed(d->dst, pchan->base + SUN4I_DDMA_DST_ADDR_REG);  in configure_pchan()
363 		writel_relaxed(d->len, pchan->base + SUN4I_DDMA_BYTE_COUNT_REG);  in configure_pchan()
364 		writel_relaxed(d->para, pchan->base + SUN4I_DDMA_PARA_REG);  in configure_pchan()
365 		writel_relaxed(d->cfg, pchan->base + SUN4I_DDMA_CFG_REG);  in configure_pchan()
367 		writel_relaxed(d->src, pchan->base + SUN4I_NDMA_SRC_ADDR_REG);  in configure_pchan()
368 		writel_relaxed(d->dst, pchan->base + SUN4I_NDMA_DST_ADDR_REG);  in configure_pchan()
369 		writel_relaxed(d->len, pchan->base + SUN4I_NDMA_BYTE_COUNT_REG);  in configure_pchan()
370 		writel_relaxed(d->cfg, pchan->base + SUN4I_NDMA_CFG_REG);  in configure_pchan()
375 				struct sun4i_dma_pchan *pchan,  in set_pchan_interrupt()  argument
379 	int pchan_number = pchan - priv->pchans;  in set_pchan_interrupt()
405  * pchan and, if successful, will configure it to fulfill a promise
415 	struct sun4i_dma_pchan *pchan;  in __execute_vchan_pending()  local
421 	/* We need a pchan to do anything, so secure one if available */  in __execute_vchan_pending()
422 	pchan = find_and_use_pchan(priv, vchan);  in __execute_vchan_pending()
423 	if (!pchan)  in __execute_vchan_pending()
465 		vchan->pchan = pchan;  in __execute_vchan_pending()
466 		set_pchan_interrupt(priv, pchan, contract->use_half_int, 1);  in __execute_vchan_pending()
467 		configure_pchan(pchan, promise);  in __execute_vchan_pending()
473 	release_pchan(priv, pchan);  in __execute_vchan_pending()
978 	struct sun4i_dma_pchan *pchan = vchan->pchan;  in sun4i_dma_terminate_all()  local
987 	 * Clearing the configuration register will halt the pchan. Interrupts  in sun4i_dma_terminate_all()
990 	if (pchan) {  in sun4i_dma_terminate_all()
991 		if (pchan->is_dedicated)  in sun4i_dma_terminate_all()
992 			writel(0, pchan->base + SUN4I_DDMA_CFG_REG);  in sun4i_dma_terminate_all()
994 			writel(0, pchan->base + SUN4I_NDMA_CFG_REG);  in sun4i_dma_terminate_all()
995 		set_pchan_interrupt(priv, pchan, 0, 0);  in sun4i_dma_terminate_all()
996 		release_pchan(priv, pchan);  in sun4i_dma_terminate_all()
1002 	vchan->pchan = NULL;  in sun4i_dma_terminate_all()
1055 	struct sun4i_dma_pchan *pchan = vchan->pchan;  in sun4i_dma_tx_status()  local
1083 	if (promise && pchan) {  in sun4i_dma_tx_status()
1085 		if (pchan->is_dedicated)  in sun4i_dma_tx_status()
1086 			bytes += readl(pchan->base + SUN4I_DDMA_BYTE_COUNT_REG);  in sun4i_dma_tx_status()
1088 			bytes += readl(pchan->base + SUN4I_NDMA_BYTE_COUNT_REG);  in sun4i_dma_tx_status()
1120 	struct sun4i_dma_pchan *pchans = priv->pchans, *pchan;  in sun4i_dma_interrupt()  local
1135 		pchan = &pchans[bit >> 1];  in sun4i_dma_interrupt()
1136 		vchan = pchan->vchan;  in sun4i_dma_interrupt()
1142 		 * Disable the IRQ and free the pchan if it's an end  in sun4i_dma_interrupt()
1161 			 * whatever we have here, reusing the pchan. There's  in sun4i_dma_interrupt()
1171 				configure_pchan(pchan, promise);  in sun4i_dma_interrupt()
1175 				vchan->pchan = NULL;  in sun4i_dma_interrupt()
1179 				release_pchan(priv, pchan);  in sun4i_dma_interrupt()
1203 	 * If a pchan was freed, we may be able to schedule something else,  in sun4i_dma_interrupt()