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spi: rockchip: init rxconf and txconf to 0

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Dmac pl330 adds src_interlace_size of dma_slave_config rxconf.
If rxconf is local variable, src_interlace_size may be non zero,
which causes wrong process.

Fixes: ddd2e87ad4 ("dmaengine: pl330: add support for interlace size config")
Change-Id: Ib301c7ca4a1175bafd0631cb4deea4baa60eebc7
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Signed-off-by: Yifeng Zhao <zyf@rock-chips.com>
This commit is contained in:
Huibin Hong
2018-08-21 17:11:39 +08:00
committed by Tao Huang
parent 7c15863913
commit 2ed90ab27d
1 changed files with 3 additions and 0 deletions
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3
drivers/spi/spi-rockchip.c
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@@ -450,6 +450,9 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
struct dma_slave_config rxconf, txconf;
struct dma_async_tx_descriptor *rxdesc, *txdesc;
memset(&rxconf, 0, sizeof(struct dma_slave_config));
memset(&txconf, 0, sizeof(struct dma_slave_config));
spin_lock_irqsave(&rs->lock, flags);
rs->state &= ~RXBUSY;
rs->state &= ~TXBUSY;