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-rw-r--r--drivers/spi/spi-rockchip.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index c0743604b906..1fa4eda4b432 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -415,7 +415,7 @@ static void rockchip_spi_dma_txcb(void *data)
415 spin_unlock_irqrestore(&rs->lock, flags); 415 spin_unlock_irqrestore(&rs->lock, flags);
416} 416}
417 417
418static int rockchip_spi_dma_transfer(struct rockchip_spi *rs) 418static void rockchip_spi_prepare_dma(struct rockchip_spi *rs)
419{ 419{
420 unsigned long flags; 420 unsigned long flags;
421 struct dma_slave_config rxconf, txconf; 421 struct dma_slave_config rxconf, txconf;
@@ -474,8 +474,6 @@ static int rockchip_spi_dma_transfer(struct rockchip_spi *rs)
474 dmaengine_submit(txdesc); 474 dmaengine_submit(txdesc);
475 dma_async_issue_pending(rs->dma_tx.ch); 475 dma_async_issue_pending(rs->dma_tx.ch);
476 } 476 }
477
478 return 1;
479} 477}
480 478
481static void rockchip_spi_config(struct rockchip_spi *rs) 479static void rockchip_spi_config(struct rockchip_spi *rs)
@@ -556,16 +554,17 @@ static int rockchip_spi_transfer_one(
556 else if (rs->rx) 554 else if (rs->rx)
557 rs->tmode = CR0_XFM_RO; 555 rs->tmode = CR0_XFM_RO;
558 556
559 if (master->can_dma && master->can_dma(master, spi, xfer)) 557 /* we need prepare dma before spi was enabled */
558 if (master->can_dma && master->can_dma(master, spi, xfer)) {
560 rs->use_dma = 1; 559 rs->use_dma = 1;
561 else 560 rockchip_spi_prepare_dma(rs);
561 } else {
562 rs->use_dma = 0; 562 rs->use_dma = 0;
563 }
563 564
564 rockchip_spi_config(rs); 565 rockchip_spi_config(rs);
565 566
566 if (rs->use_dma) 567 if (!rs->use_dma)
567 ret = rockchip_spi_dma_transfer(rs);
568 else
569 ret = rockchip_spi_pio_transfer(rs); 568 ret = rockchip_spi_pio_transfer(rs);
570 569
571 return ret; 570 return ret;