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spi: rockchip: Set GPIO_SS flag to enable Slave Select with GPIO CS 

The rockchip spi still requires slave selection when using GPIO CS.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jeffy Chen 2017-06-28 12:38:42 +08:00 committed by Mark Brown
parent c351587e25
commit c863795c4c
1 changed files with 1 additions and 0 deletions
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1
drivers/spi/spi-rockchip.c
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@ -749,6 +749,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
master->transfer_one = rockchip_spi_transfer_one;
master->max_transfer_size = rockchip_spi_max_transfer_size;
master->handle_err = rockchip_spi_handle_err;
master->flags = SPI_MASTER_GPIO_SS;
rs->dma_tx.ch = dma_request_chan(rs->dev, "tx");
if (IS_ERR(rs->dma_tx.ch)) {