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authorSamuel Holland <samuel@sholland.org>2020-01-18 00:33:40 +0300
committerLinus Walleij <linus.walleij@linaro.org>2020-02-21 17:16:08 +0300
commit8587b21c599e2874233cc5bbea7d0b18f4b62963 (patch)
tree896f782f9ee9e3ea78d172e040e48d8869a2f4ec /drivers/pinctrl
parenta59c99d9eaf90e6426d9bfe3b0a5e5b78010c72e (diff)
downloadlinux-8587b21c599e2874233cc5bbea7d0b18f4b62963.tar.xz
pinctrl: sunxi: Mask non-wakeup IRQs on suspend
The pin controller hardware does not distinguish IRQs intended for wakeup from other IRQs, so we must mask non-wakeup IRQs in software to prevent inadvertent wakeups. This is accomplished at the irqchip level via the IRQCHIP_MASK_ON_SUSPEND flag. Signed-off-by: Samuel Holland <samuel@sholland.org> Link: https://lore.kernel.org/r/20200117213340.47714-2-samuel@sholland.org Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/sunxi/pinctrl-sunxi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index 9ede17ab6638..8e792f8e2dc9 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -1076,6 +1076,7 @@ static struct irq_chip sunxi_pinctrl_edge_irq_chip = {
.irq_release_resources = sunxi_pinctrl_irq_release_resources,
.irq_set_type = sunxi_pinctrl_irq_set_type,
.irq_set_wake = sunxi_pinctrl_irq_set_wake,
+ .flags = IRQCHIP_MASK_ON_SUSPEND,
};
static struct irq_chip sunxi_pinctrl_level_irq_chip = {
@@ -1092,6 +1093,7 @@ static struct irq_chip sunxi_pinctrl_level_irq_chip = {
.irq_set_type = sunxi_pinctrl_irq_set_type,
.irq_set_wake = sunxi_pinctrl_irq_set_wake,
.flags = IRQCHIP_EOI_THREADED |
+ IRQCHIP_MASK_ON_SUSPEND |
IRQCHIP_EOI_IF_HANDLED,
};