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DMA: PL330: Support DMA_SLAVE_CONFIG command
Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -73,6 +73,7 @@ struct dma_pl330_chan {
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/* For D-to-M and M-to-D channels */
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/* For D-to-M and M-to-D channels */
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int burst_sz; /* the peripheral fifo width */
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int burst_sz; /* the peripheral fifo width */
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int burst_len; /* the number of burst */
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dma_addr_t fifo_addr;
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dma_addr_t fifo_addr;
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};
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};
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@ -263,11 +264,11 @@ static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned
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struct dma_pl330_chan *pch = to_pchan(chan);
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struct dma_pl330_chan *pch = to_pchan(chan);
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struct dma_pl330_desc *desc;
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struct dma_pl330_desc *desc;
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unsigned long flags;
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unsigned long flags;
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struct dma_pl330_dmac *pdmac = pch->dmac;
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struct dma_slave_config *slave_config;
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/* Only supports DMA_TERMINATE_ALL */
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switch (cmd) {
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if (cmd != DMA_TERMINATE_ALL)
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case DMA_TERMINATE_ALL:
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return -ENXIO;
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spin_lock_irqsave(&pch->lock, flags);
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spin_lock_irqsave(&pch->lock, flags);
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/* FLUSH the PL330 Channel thread */
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/* FLUSH the PL330 Channel thread */
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@ -280,6 +281,30 @@ static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned
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spin_unlock_irqrestore(&pch->lock, flags);
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spin_unlock_irqrestore(&pch->lock, flags);
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pl330_tasklet((unsigned long) pch);
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pl330_tasklet((unsigned long) pch);
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break;
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case DMA_SLAVE_CONFIG:
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slave_config = (struct dma_slave_config *)arg;
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if (slave_config->direction == DMA_TO_DEVICE) {
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if (slave_config->dst_addr)
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pch->fifo_addr = slave_config->dst_addr;
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if (slave_config->dst_addr_width)
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pch->burst_sz = __ffs(slave_config->dst_addr_width);
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if (slave_config->dst_maxburst)
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pch->burst_len = slave_config->dst_maxburst;
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} else if (slave_config->direction == DMA_FROM_DEVICE) {
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if (slave_config->src_addr)
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pch->fifo_addr = slave_config->src_addr;
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if (slave_config->src_addr_width)
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pch->burst_sz = __ffs(slave_config->src_addr_width);
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if (slave_config->src_maxburst)
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pch->burst_len = slave_config->src_maxburst;
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}
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break;
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default:
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dev_err(pch->dmac->pif.dev, "Not supported command.\n");
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return -ENXIO;
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}
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return 0;
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return 0;
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}
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}
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