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path: root/drivers/pinctrl/pinctrl-single.c
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Diffstat (limited to 'drivers/pinctrl/pinctrl-single.c')
-rw-r--r--drivers/pinctrl/pinctrl-single.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index bd2e65716..cf9bafa10 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -255,6 +255,13 @@ static enum pin_config_param pcs_bias[] = {
};
/*
+ * This lock class tells lockdep that irqchip core that this single
+ * pinctrl can be in a different category than its parents, so it won't
+ * report false recursion.
+ */
+static struct lock_class_key pcs_lock_class;
+
+/*
* REVISIT: Reads and writes could eventually use regmap or something
* generic. But at least on omaps, some mux registers are performance
* critical as they may need to be remuxed every time before and after
@@ -1713,6 +1720,7 @@ static int pcs_irqdomain_map(struct irq_domain *d, unsigned int irq,
irq_set_chip_data(irq, pcs_soc);
irq_set_chip_and_handler(irq, &pcs->chip,
handle_level_irq);
+ irq_set_lockdep_class(irq, &pcs_lock_class);
irq_set_noprobe(irq);
return 0;