On 10/10/2015 04:29 AM, Stefan Agner wrote: > Many boards use an alias in the stdout-path specification along > with console options after a colon (e.g. serial0:115200n8). When > using earlycon, this specification currently does not work. While > fdt_path_offset supports alias resolution, it does not remove the > console options by itself. Use the fdt_path_offset_namelen variant > and provide the length of the alias to enable aliases with console > options in the stdout-path. > > Signed-off-by: Stefan Agner <stefan@xxxxxxxx> > --- > Hi, > > Stumbled upon this while testing 32-bit ARM earlycon support. It > seems that this once already came up on the list: > https://lkml.org/lkml/2015/3/13/562 Yeah, looks like my patch got lost somewhere. https://lkml.org/lkml/2015/4/8/604 Regards, Peter Hurley > > drivers/of/fdt.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c > index 6e82bc42..9fc3568 100644 > --- a/drivers/of/fdt.c > +++ b/drivers/of/fdt.c > @@ -813,8 +813,11 @@ static int __init early_init_dt_scan_chosen_serial(void) > if (!p || !l) > return -ENOENT; > > + /* Remove console options if present */ > + l = strchrnul(p, ':') - p; > + > /* Get the node specified by stdout-path */ > - offset = fdt_path_offset(fdt, p); > + offset = fdt_path_offset_namelen(fdt, p, l); > if (offset < 0) > return -ENODEV; > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
