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spi: rockchip: rockchip_spi_prepare_dma return 1 if it is ok

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If rockchip_spi_prepare_dma return 0, spi_transfer_one_message
won't wait for the dma complete event. Which may cause unknown
error.

Change-Id: Idf51a737bbd9fa9b9d1ae749636fe524de1cbfa9
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
This commit is contained in:
Huibin Hong 2017-07-12 10:22:18 +08:00 committed by Huang, Tao
parent 5d40559119
commit 0e366d11fe
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-rockchip.c
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@ -499,7 +499,7 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
dma_async_issue_pending(rs->dma_tx.ch);
}
return 0;
return 1;
}
static void rockchip_spi_config(struct rockchip_spi *rs)