From: Linus Walleij <[email protected]> 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 <[email protected]> Reported-by: Stephen Warren <[email protected]> Signed-off-by: Linus Walleij <[email protected]> --- drivers/pinctrl/devicetree.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c index fe2d1af..fd40a11 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); -- 1.7.11.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
