In current implementation cs property can be read only from device-tree(for_each_available_child_of_node_scoped). Change it to fwnode based read to allow property reading in ACPI case too. Signed-off-by: Witold Sadowski <wsadowski@xxxxxxxxxxx> Signed-off-by: Piyush Malgujar <pmalgujar@xxxxxxxxxxx> --- drivers/spi/spi-cadence-xspi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-cadence-xspi.c b/drivers/spi/spi-cadence-xspi.c index a1ecd9ca07f0..db267a2ded5d 100644 --- a/drivers/spi/spi-cadence-xspi.c +++ b/drivers/spi/spi-cadence-xspi.c @@ -827,15 +827,20 @@ static irqreturn_t cdns_xspi_irq_handler(int this_irq, void *dev) static int cdns_xspi_of_get_plat_data(struct platform_device *pdev) { - struct device_node *node_prop = pdev->dev.of_node; + struct fwnode_handle *fwnode_child; unsigned int cs; - for_each_available_child_of_node_scoped(node_prop, node_child) { - if (of_property_read_u32(node_child, "reg", &cs)) { + device_for_each_child_node(&pdev->dev, fwnode_child) { + if (!fwnode_device_is_available(fwnode_child)) + continue; + + if (fwnode_property_read_u32(fwnode_child, "reg", &cs)) { dev_err(&pdev->dev, "Couldn't get memory chip select\n"); + fwnode_handle_put(fwnode_child); return -ENXIO; } else if (cs >= CDNS_XSPI_MAX_BANKS) { dev_err(&pdev->dev, "reg (cs) parameter value too large\n"); + fwnode_handle_put(fwnode_child); return -ENXIO; } } -- 2.43.0