From c05127c4e2c6e7d9949347a76fd05c337bcd5e84 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 10 Apr 2012 10:00:38 +0200 Subject: pinctrl: implement pinctrl deferred probing If drivers try to obtain pinctrl handles for a pin controller that has not yet registered to the subsystem, we need to be able to back out and retry with deferred probing. So let's return -EPROBE_DEFER whenever this location fails. Also downgrade the errors to info, maybe we will even set them to debug once the deferred probing is commonplace. Cc: Arnd Bergmann Reviewed-by: Mark Brown Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/pinctrl/devicetree.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/pinctrl/devicetree.c') diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c index 5ef2feb44395..fcb1de45473c 100644 --- a/drivers/pinctrl/devicetree.c +++ b/drivers/pinctrl/devicetree.c @@ -121,11 +121,11 @@ static int dt_to_map_one_config(struct pinctrl *p, const char *statename, for (;;) { np_pctldev = of_get_next_parent(np_pctldev); if (!np_pctldev || of_node_is_root(np_pctldev)) { - dev_err(p->dev, "could not find pctldev for node %s\n", + dev_info(p->dev, "could not find pctldev for node %s, deferring probe\n", np_config->full_name); of_node_put(np_pctldev); - /* FIXME: This should trigger deferrered probe */ - return -ENODEV; + /* OK let's just assume this will appear later then */ + return -EPROBE_DEFER; } pctldev = find_pinctrl_by_of_node(np_pctldev); if (pctldev) -- cgit v1.2.3