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spi: support spi without dma channel to use can_dma()
For spi without dma channel and use can_dma(), it can use master->dev for struct device. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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commit
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1 changed files with 18 additions and 4 deletions
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@ -539,8 +539,15 @@ static int __spi_map_msg(struct spi_master *master, struct spi_message *msg)
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if (!master->can_dma)
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return 0;
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tx_dev = master->dma_tx->device->dev;
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rx_dev = master->dma_rx->device->dev;
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if (master->dma_tx)
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tx_dev = master->dma_tx->device->dev;
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else
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tx_dev = &master->dev;
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if (master->dma_rx)
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rx_dev = master->dma_rx->device->dev;
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else
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rx_dev = &master->dev;
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list_for_each_entry(xfer, &msg->transfers, transfer_list) {
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if (!master->can_dma(master, msg->spi, xfer))
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@ -579,8 +586,15 @@ static int __spi_unmap_msg(struct spi_master *master, struct spi_message *msg)
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if (!master->cur_msg_mapped || !master->can_dma)
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return 0;
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tx_dev = master->dma_tx->device->dev;
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rx_dev = master->dma_rx->device->dev;
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if (master->dma_tx)
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tx_dev = master->dma_tx->device->dev;
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else
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tx_dev = &master->dev;
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if (master->dma_rx)
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rx_dev = master->dma_rx->device->dev;
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else
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rx_dev = &master->dev;
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list_for_each_entry(xfer, &msg->transfers, transfer_list) {
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if (!master->can_dma(master, msg->spi, xfer))
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