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Fix build warnings as below:
>> drivers/irqchip/irq-loongson-liointc.c:134:12: warning: no previous prototype for 'liointc_of_init' [-Wmissing-prototypes]
134 | int __init liointc_of_init(struct device_node *node,
| ^~~~~~~~~~~~~~~
Fixes: dbb152267908c4b2c3639492a94 ("irqchip: Add driver for Loongson I/O Local Interrupt Controller")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Huacai Chen <chenhuacai@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210105025651.772024-1-chenhuacai@loongson.cn
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In gc->mask_cache bits, 1 means enabled and 0 means disabled, but in the
loongson-liointc driver mask_cache is misused by reverting its meaning.
This patch fix the bug and update the comments as well.
Fixes: dbb152267908c4b2c3639492a ("irqchip: Add driver for Loongson I/O Local Interrupt Controller")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1596099090-23516-4-git-send-email-chenhc@lemote.com
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In the function liointc_set_type(), we need to call the function
irq_gc_unlock_irqrestore() before returning.
Fixes: dbb152267908 ("irqchip: Add driver for Loongson I/O Local Interrupt Controller")
Reported-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1594087972-21715-8-git-send-email-yangtiezhu@loongson.cn
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The 1.0 version of that controller has a bug that status bit
of LPC IRQ sometimes doesn't get set correctly.
So we can always blame LPC IRQ when spurious interrupt happens
at the parent interrupt line which LPC IRQ supposed to route
to.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Co-developed-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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This controller appeared on Loongson family of chips as the primary
package interrupt source.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Co-developed-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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