| Message ID | 20200221161418.20225-3-alexandre.torgue@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add device tree build information | expand |
On Fri, Feb 21, 2020 at 05:14:16PM +0100, Alexandre Torgue wrote: > This commit prints out DTB build information (build time, dts source > version used, ...) if "Build-info" property exists in DTB root node. /Build/build/ > > Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com> > > diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c > index 2cdf64d2456f..aa5989039746 100644 > --- a/drivers/of/fdt.c > +++ b/drivers/of/fdt.c > @@ -1224,9 +1224,18 @@ bool __init early_init_dt_scan(void *params) > */ > void __init unflatten_device_tree(void) > { > + const char *build_info; > + unsigned long dt_root; > + > __unflatten_device_tree(initial_boot_params, NULL, &of_root, > early_init_dt_alloc_memory_arch, false); > > + /* If available, provide dtb build information */ > + dt_root = of_get_flat_dt_root(); > + build_info = of_get_flat_dt_prop(dt_root, "build-info", NULL); We just unflattened the tree, why are we using the flat dt functions? > + if (build_info) > + pr_info("%s\n", build_info); > + > /* Get pointer to "/chosen" and "/aliases" nodes for use everywhere */ > of_alias_scan(early_init_dt_alloc_memory_arch); > > -- > 2.17.1 >
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 2cdf64d2456f..aa5989039746 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -1224,9 +1224,18 @@ bool __init early_init_dt_scan(void *params) */ void __init unflatten_device_tree(void) { + const char *build_info; + unsigned long dt_root; + __unflatten_device_tree(initial_boot_params, NULL, &of_root, early_init_dt_alloc_memory_arch, false); + /* If available, provide dtb build information */ + dt_root = of_get_flat_dt_root(); + build_info = of_get_flat_dt_prop(dt_root, "build-info", NULL); + if (build_info) + pr_info("%s\n", build_info); + /* Get pointer to "/chosen" and "/aliases" nodes for use everywhere */ of_alias_scan(early_init_dt_alloc_memory_arch);
This commit prints out DTB build information (build time, dts source version used, ...) if "Build-info" property exists in DTB root node. Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>