diff options
Diffstat (limited to 'drivers/spi/spi-dw-mmio.c')
| -rw-r--r-- | drivers/spi/spi-dw-mmio.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index cc74cbe03431..819907e332c4 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -320,7 +320,11 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) struct resource *mem; struct dw_spi *dws; int ret; - int num_cs; + + if (device_property_read_bool(&pdev->dev, "spi-slave")) { + dev_warn(&pdev->dev, "spi-slave is not yet supported\n"); + return -ENODEV; + } dwsmmio = devm_kzalloc(&pdev->dev, sizeof(struct dw_spi_mmio), GFP_KERNEL); @@ -364,11 +368,8 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) &dws->reg_io_width)) dws->reg_io_width = 4; - num_cs = 4; - - device_property_read_u32(&pdev->dev, "num-cs", &num_cs); - - dws->num_cs = num_cs; + /* Rely on the auto-detection if no property specified */ + device_property_read_u32(&pdev->dev, "num-cs", &dws->num_cs); init_func = device_get_match_data(&pdev->dev); if (init_func) { |