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| author | Sungbo Eo <mans0n@gorani.run> | 2020-03-21 22:38:42 +0900 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-03-22 11:52:16 +0000 |
| commit | 6a214a28132f19ace3d835a6d8f6422ec80ad200 (patch) | |
| tree | 53fd92715339dab893c27f707a5ff7e6c2e0bec0 /mm/zbud.c | |
| parent | b2cb11f4f7643255b7703c0fcabc31a8ec478f3a (diff) | |
| download | linux-stable-6a214a28132f19ace3d835a6d8f6422ec80ad200.tar.gz linux-stable-6a214a28132f19ace3d835a6d8f6422ec80ad200.tar.bz2 linux-stable-6a214a28132f19ace3d835a6d8f6422ec80ad200.zip | |
irqchip/versatile-fpga: Apply clear-mask earlier
Clear its own IRQs before the parent IRQ get enabled, so that the
remaining IRQs do not accidentally interrupt the parent IRQ controller.
This patch also fixes a reboot bug on OX820 SoC, where the remaining
rps-timer IRQ raises a GIC interrupt that is left pending. After that,
the rps-timer IRQ is cleared during driver initialization, and there's
no IRQ left in rps-irq when local_irq_enable() is called, which evokes
an error message "unexpected IRQ trap".
Fixes: bdd272cbb97a ("irqchip: versatile FPGA: support cascaded interrupts from DT")
Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200321133842.2408823-1-mans0n@gorani.run
Diffstat (limited to 'mm/zbud.c')
0 files changed, 0 insertions, 0 deletions