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Signed-off-by: Han Xu --- drivers/spi/spi-fsl-lpspi.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index 6454b88c31fe..7f0562ed4d09 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -98,6 +98,7 @@ struct fsl_lpspi_data { struct clk *clk_ipg; struct clk *clk_per; bool is_slave; + u32 num_cs; bool is_only_cs1; bool is_first_byte; @@ -850,6 +851,9 @@ static int fsl_lpspi_probe(struct platform_device *pdev) fsl_lpspi->is_slave = is_slave; fsl_lpspi->is_only_cs1 = of_property_read_bool((&pdev->dev)->of_node, "fsl,spi-only-use-cs1-sel"); + if (of_property_read_u32((&pdev->dev)->of_node, "num-cs", + &fsl_lpspi->num_cs)) + fsl_lpspi->num_cs = 1; controller->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 32); controller->transfer_one = fsl_lpspi_transfer_one; @@ -859,6 +863,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev) controller->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX; controller->dev.of_node = pdev->dev.of_node; controller->bus_num = pdev->id; + controller->num_chipselect = fsl_lpspi->num_cs; controller->slave_abort = fsl_lpspi_slave_abort; if (!fsl_lpspi->is_slave) controller->use_gpio_descriptors = true;