tree e116ccbb978c816e896128d7bf7afc5cc901429d
parent 9c0fb298c95cfed30ac17a662664f9838959c9de
author Stephen Warren <swarren@nvidia.com> 1588029965 -0600
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1591165167 +0200

gpio: tegra: mask GPIO IRQs during IRQ shutdown

[ Upstream commit 0cf253eed5d2bdf7bb3152457b38f39b012955f7 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>