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| author | Samuel Holland <samuel@sholland.org> | 2020-01-17 15:33:40 -0600 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-02-21 15:16:08 +0100 |
| commit | 8587b21c599e2874233cc5bbea7d0b18f4b62963 (patch) | |
| tree | 896f782f9ee9e3ea78d172e040e48d8869a2f4ec /drivers/pinctrl | |
| parent | a59c99d9eaf90e6426d9bfe3b0a5e5b78010c72e (diff) | |
| download | linux-8587b21c599e2874233cc5bbea7d0b18f4b62963.tar.gz linux-8587b21c599e2874233cc5bbea7d0b18f4b62963.tar.bz2 linux-8587b21c599e2874233cc5bbea7d0b18f4b62963.zip | |
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.c | 2 |
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, }; |