[PATCH v2 18/22] pinctrl: Probe pinctrl devices on demand
Tomeu Vizoso
tomeu.vizoso at collabora.com
Tue Jul 28 06:19:49 PDT 2015
When looking up a pin controller through its firmware node, probe it if
it hasn't already.
The goal is to reduce deferred probes to a minimum, as it makes it very
cumbersome to find out why a device failed to probe, and can introduce
very big delays in when a critical device is probed.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso at collabora.com>
---
Changes in v2: None
drivers/pinctrl/devicetree.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index fe04e748dfe4..490860f6374e 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -112,6 +112,7 @@ 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);
+ fwnode_ensure_device(&np_pctldev->fwnode);
for (;;) {
np_pctldev = of_get_next_parent(np_pctldev);
if (!np_pctldev || of_node_is_root(np_pctldev)) {
--
2.4.3
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