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authorGrant Likely <grant.likely@linaro.org>2014-03-28 08:12:18 -0700
committerGrant Likely <grant.likely@linaro.org>2014-06-26 17:12:23 +0100
commita752ee56ad84bf9a35b8323af1ad22b03c1df2c4 (patch)
treeca01e3094f6fcd5b101dcc7edf716a25df3029d5 /drivers/of
parent003882180340a2808151d320dedd853f4cff5e4b (diff)
downloadtalos-obmc-linux-a752ee56ad84bf9a35b8323af1ad22b03c1df2c4.tar.gz
talos-obmc-linux-a752ee56ad84bf9a35b8323af1ad22b03c1df2c4.zip
tty: Update hypervisor tty drivers to use core stdout parsing code.
The evh_bytechan, hvc_opal and hvc_vio drivers all open code the parsing of the stdout node in the device tree. This patch simplifies the driver by removing the duplicated functionality. Signed-off-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/base.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index df9b2bb7bb27..e4f95ba0a3eb 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -36,7 +36,7 @@ struct device_node *of_allnodes;
EXPORT_SYMBOL(of_allnodes);
struct device_node *of_chosen;
struct device_node *of_aliases;
-static struct device_node *of_stdout;
+struct device_node *of_stdout;
static struct kset *of_kset;
@@ -2063,9 +2063,12 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
of_chosen = of_find_node_by_path("/chosen@0");
if (of_chosen) {
+ /* linux,stdout-path and /aliases/stdout are for legacy compatibility */
const char *name = of_get_property(of_chosen, "stdout-path", NULL);
if (!name)
name = of_get_property(of_chosen, "linux,stdout-path", NULL);
+ if (IS_ENABLED(CONFIG_PPC) && !name)
+ name = of_get_property(of_aliases, "stdout", NULL);
if (name)
of_stdout = of_find_node_by_path(name);
}
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