diff mbox series

[v4,04/13] spi: dw: Use generic function to read reg address

Message ID 20201016225755.302659-5-seanga2@gmail.com
State Accepted
Commit c785f43ffdf402ecd109bbce972c25e32bc4c85b
Delegated to: Jagannadha Sutradharudu Teki
Headers show
Series riscv: Add SPI support for Kendryte K210 | expand

Commit Message

Sean Anderson Oct. 16, 2020, 10:57 p.m. UTC 
Using an fdt-specific function causes problems when compiled with a live
tree.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Tested-by Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
---
This patch was previously part of
https://patchwork.ozlabs.org/project/uboot/list/?series=161576

(no changes since v1)

 drivers/spi/designware_spi.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/spi/designware_spi.c b/drivers/spi/designware_spi.c
index 32de33f695..e8ba80ef41 100644
--- a/drivers/spi/designware_spi.c
+++ b/drivers/spi/designware_spi.c
@@ -160,6 +160,8 @@  static int dw_spi_ofdata_to_platdata(struct udevice *bus)
 	struct dw_spi_platdata *plat = bus->platdata;
 
 	plat->regs = dev_read_addr_ptr(bus);
+	if (!plat->regs)
+		return -EINVAL;
 
 	/* Use 500KHz as a suitable default */
 	plat->frequency = dev_read_u32_default(bus, "spi-max-frequency",