According to Timur Tabi
This bug in older U-Boots is definitely PowerPC-specific
So before allowing this driver to be built for platforms other than
PPC32, make sure that we don't accept malformed device trees on those
other platforms.
Suggested-by: Timur Tabi <timur@kernel.org>
Reviewed-by: Timur Tabi <timur@kernel.org>
Acked-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
if (val)
qe_port->port.uartclk = val;
else {
+ if (!IS_ENABLED(CONFIG_PPC32)) {
+ dev_err(&ofdev->dev,
+ "invalid brg-frequency in device tree\n");
+ ret = -EINVAL;
+ goto out_np;
+ }
+
/*
* Older versions of U-Boot do not initialize the brg-frequency
* property, so in this case we assume the BRG frequency is