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authorLinus Walleij <linus.walleij@linaro.org>2013-01-12 00:22:36 +0400
committerLinus Walleij <linus.walleij@linaro.org>2013-01-12 00:49:21 +0400
commitb2083062a3b4035e85349120b426ecef2b6d155f (patch)
tree1ca595472e79e8569dc4b3a2e42bc1568da197c7 /drivers/pinctrl/devicetree.c
parente32af889458837d11a1ec5ec98934a1e711b049d (diff)
downloadlinux-b2083062a3b4035e85349120b426ecef2b6d155f.tar.xz
pinctrl: do not defer device tree hogs
commit af1024e0f7cde9023ddd0f3116db03911d5914c0 "pinctrl: skip deferral of hogs" Attempts to avoid probe deferral on hogged pins, but we forgot the device tree case. This patch fixes this. Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reported-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/devicetree.c')
-rw-r--r--drivers/pinctrl/devicetree.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index fe2d1af7cfa0..fd40a11ad645 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -141,6 +141,11 @@ static int dt_to_map_one_config(struct pinctrl *p, const char *statename,
pctldev = find_pinctrl_by_of_node(np_pctldev);
if (pctldev)
break;
+ /* Do not defer probing of hogs (circular loop) */
+ if (np_pctldev == p->dev->of_node) {
+ of_node_put(np_pctldev);
+ return -ENODEV;
+ }
}
of_node_put(np_pctldev);