diff options
Diffstat (limited to 'drivers/spi/spi-microchip-core-spi.c')
| -rw-r--r-- | drivers/spi/spi-microchip-core-spi.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi-microchip-core-spi.c b/drivers/spi/spi-microchip-core-spi.c index b8738190cdcb..16e0885474a0 100644 --- a/drivers/spi/spi-microchip-core-spi.c +++ b/drivers/spi/spi-microchip-core-spi.c @@ -295,10 +295,10 @@ static int mchp_corespi_transfer_one(struct spi_controller *host, static int mchp_corespi_probe(struct platform_device *pdev) { + const char *protocol = "motorola"; struct spi_controller *host; struct mchp_corespi *spi; struct resource *res; - const char *protocol; u32 num_cs, mode, frame_size; bool assert_ssel; int ret = 0; @@ -320,6 +320,8 @@ static int mchp_corespi_probe(struct platform_device *pdev) */ ret = of_property_read_string(pdev->dev.of_node, "microchip,protocol-configuration", &protocol); + if (ret && ret != -EINVAL) + return dev_err_probe(&pdev->dev, ret, "Error reading protocol-configuration\n"); if (strcmp(protocol, "motorola") != 0) return dev_err_probe(&pdev->dev, -EINVAL, "CoreSPI: protocol '%s' not supported by this driver\n", |