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authorLeif Lindholm <leif.lindholm@linaro.org>2014-11-27 17:56:07 +0000
committerGrant Likely <grant.likely@linaro.org>2014-12-03 23:12:37 +0000
commit7914a7c5651a51617d952e8fa745000ed8c4f001 (patch)
tree4a0b5a33bd0dbc2a39bcec49ccc3dc7f9c412d91 /drivers/of/base.c
parent75c28c09af99a0db0ccd8b4395469761aa736543 (diff)
of: support passing console options with stdout-path
Support specifying console options (like with console=ttyXN,<options>) by appending them to the stdout-path property after a separating ':'. Example: stdout-path = "uart0:115200"; Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org> [grant.likely: minor rework to shorten the diffstat] Signed-off-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'drivers/of/base.c')
-rw-r--r--drivers/of/base.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index bdf051d0a7e6..f2be7c860cf2 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -37,6 +37,7 @@ EXPORT_SYMBOL(of_root);
struct device_node *of_chosen;
struct device_node *of_aliases;
struct device_node *of_stdout;
+static const char *of_stdout_options;
struct kset *of_kset;
@@ -1852,7 +1853,7 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
if (IS_ENABLED(CONFIG_PPC) && !name)
name = of_get_property(of_aliases, "stdout", NULL);
if (name)
- of_stdout = of_find_node_by_path(name);
+ of_stdout = of_find_node_opts_by_path(name, &of_stdout_options);
}
if (!of_aliases)
@@ -1978,7 +1979,8 @@ bool of_console_check(struct device_node *dn, char *name, int index)
{
if (!dn || dn != of_stdout || console_set_on_cmdline)
return false;
- return !add_preferred_console(name, index, NULL);
+ return !add_preferred_console(name, index,
+ kstrdup(of_stdout_options, GFP_KERNEL));
}
EXPORT_SYMBOL_GPL(of_console_check);