[PATCH 18/21] pinctrl: Probe pinctrl devices on demand

Tomeu Vizoso
2015-05-25T14:58:43Z

When looking up a pin controller through its DT node, ensure that the
corresponding device has been registered.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
---
drivers/pinctrl/devicetree.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index 0bbf7d7..17231ea 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -18,6 +18,7 @@

#include <linux/device.h>
#include <linux/of.h>
+#include <linux/of_platform.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/slab.h>

@@ -118,6 +119,7 @@ static int dt_to_map_one_config(struct pinctrl *p, const char *statename,

/* Find the pin controller containing np_config */
np_pctldev = of_node_get(np_config);
+ of_platform_device_ensure(np_pctldev);
for (;;) {
np_pctldev = of_get_next_parent(np_pctldev);
if (!np_pctldev || of_node_is_root(np_pctldev)) {
--
2.4.1