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authorStephen Warren <swarren@nvidia.com>2020-04-27 17:26:05 -0600
committerLinus Walleij <linus.walleij@linaro.org>2020-04-28 16:22:33 +0200
commit0cf253eed5d2bdf7bb3152457b38f39b012955f7 (patch)
tree2b94b197852fd617dbaf561300af3d302e70eab3 /drivers/gpio
parent8650b6099da5cab203624bf56af200191e260f68 (diff)
downloadlinux-0cf253eed5d2bdf7bb3152457b38f39b012955f7.tar.bz2
gpio: tegra: mask GPIO IRQs during IRQ shutdown
The driver currently leaves GPIO IRQs unmasked even when the GPIO IRQ client has released the GPIO IRQ. This allows the HW to raise IRQs, and SW to process them, after shutdown. Fix this by masking the IRQ when it's shut down. This is usually taken care of by the irqchip core, but since this driver has a custom irq_shutdown implementation, it must do this explicitly itself. Signed-off-by: Stephen Warren <swarren@nvidia.com> Link: https://lore.kernel.org/r/20200427232605.11608-1-swarren@wwwdotorg.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-tegra.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index acb99eff9939..86568154cdb3 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -368,6 +368,7 @@ static void tegra_gpio_irq_shutdown(struct irq_data *d)
struct tegra_gpio_info *tgi = bank->tgi;
unsigned int gpio = d->hwirq;
+ tegra_gpio_irq_mask(d);
gpiochip_unlock_as_irq(&tgi->gc, gpio);
}