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authorOlof Johansson <olof@lixom.net>2014-09-23 22:03:03 -0700
committerOlof Johansson <olof@lixom.net>2014-09-23 22:03:42 -0700
commit2fee8c1dd07260329e9788984b79b099456a9d11 (patch)
treeeb7a0b1069ea85a135f4f1df3703236a8003036c /drivers/of/selftest.c
parent01100c022df5d9b8ac56d3705e33e69dc012a6e2 (diff)
parent31957609db529d401658adc2e91ef7df7ea42699 (diff)
Merge tag 'fixes-v3.18-not-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical
Merge "non-urgent omap fixes for v3.18 merge window" from Tony Lindgren: Fixes for omaps that were not considered urgent enough for the -rc cycle: - Fixes for .dts files to differentiate panda and beaglebone versions - Powerdomain fixes from Nishant Menon mostly for newer omaps - Fixes for __initconst and of_device_ids const usage * tag 'fixes-v3.18-not-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: make of_device_ids const ARM: omap2: make arrays containing machine compatible strings const ARM: OMAP4+: PM: Use only valid low power state for CPU hotplug ARM: OMAP4+: PM: use only valid low power state for suspend ARM: OMAP4+: PM: Make logic state programmable ARM: OMAP2+: powerdomain: introduce logic for finding valid power domain ARM: OMAP2+: powerdomain: pwrdm_for_each_clkdm iterate only valid clkdms ARM: OMAP5: powerdomain data: fix powerdomain powerstate ARM: OMAP: DRA7: powerdomain data: fix powerdomain powerstate ARM: dts: am335x-bone*: Fix model name and update compatibility information ARM: dts: omap4-panda: Fix model and SoC family details + Linux 3.17-rc3 Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/of/selftest.c')
-rw-r--r--drivers/of/selftest.c40
1 files changed, 31 insertions, 9 deletions
diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c
index d41002667833..a737cb5974de 100644
--- a/drivers/of/selftest.c
+++ b/drivers/of/selftest.c
@@ -27,6 +27,7 @@ static struct selftest_results {
#define NO_OF_NODES 2
static struct device_node *nodes[NO_OF_NODES];
static int last_node_index;
+static bool selftest_live_tree;
#define selftest(result, fmt, ...) { \
if (!(result)) { \
@@ -630,13 +631,6 @@ static int attach_node_and_children(struct device_node *np)
{
struct device_node *next, *root = np, *dup;
- if (!np) {
- pr_warn("%s: No tree to attach; not running tests\n",
- __func__);
- return -ENODATA;
- }
-
-
/* skip root node */
np = np->child;
/* storing a copy in temporary node */
@@ -672,12 +666,12 @@ static int attach_node_and_children(struct device_node *np)
static int __init selftest_data_add(void)
{
void *selftest_data;
- struct device_node *selftest_data_node;
+ struct device_node *selftest_data_node, *np;
extern uint8_t __dtb_testcases_begin[];
extern uint8_t __dtb_testcases_end[];
const int size = __dtb_testcases_end - __dtb_testcases_begin;
- if (!size || !of_allnodes) {
+ if (!size) {
pr_warn("%s: No testcase data to attach; not running tests\n",
__func__);
return -ENODATA;
@@ -692,6 +686,22 @@ static int __init selftest_data_add(void)
return -ENOMEM;
}
of_fdt_unflatten_tree(selftest_data, &selftest_data_node);
+ if (!selftest_data_node) {
+ pr_warn("%s: No tree to attach; not running tests\n", __func__);
+ return -ENODATA;
+ }
+
+ if (!of_allnodes) {
+ /* enabling flag for removing nodes */
+ selftest_live_tree = true;
+ of_allnodes = selftest_data_node;
+
+ for_each_of_allnodes(np)
+ __of_attach_node_sysfs(np);
+ of_aliases = of_find_node_by_path("/aliases");
+ of_chosen = of_find_node_by_path("/chosen");
+ return 0;
+ }
/* attach the sub-tree to live tree */
return attach_node_and_children(selftest_data_node);
@@ -723,6 +733,18 @@ static void selftest_data_remove(void)
struct device_node *np;
struct property *prop;
+ if (selftest_live_tree) {
+ of_node_put(of_aliases);
+ of_node_put(of_chosen);
+ of_aliases = NULL;
+ of_chosen = NULL;
+ for_each_child_of_node(of_allnodes, np)
+ detach_node_and_children(np);
+ __of_detach_node_sysfs(of_allnodes);
+ of_allnodes = NULL;
+ return;
+ }
+
while (last_node_index >= 0) {
if (nodes[last_node_index]) {
np = of_find_node_by_path(nodes[last_node_index]->full_name);