irqchip/brcmstb-l2: Remove some processing from the handler

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Saving the generic chip pointer in the brcmstb_l2_intc_data prevents
the need to call irq_get_domain_generic_chip().  Also don't need to
save parent_irq and base there since local variables in the
brcmstb_l2_intc_of_init() function are just as good.

The handle_edge_irq flow or chained_irq_enter takes care of the
acknowledgment of the interrupt so it is redundant to clear it in
brcmstb_l2_intc_irq_handle().

irq_linear_revmap() is a fast path equivalent of irq_find_mapping()
that is appropriate to use for domain controllers of this type.

Defining irq_mask_ack is slightly more efficient than just
implementing irq_mask and irq_ack separately.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

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Doug Berger 2017-09-18 17:59:58 -07:00 • committed by Marc Zyngier

parent 42a5968c0a

commit 49aa6ef0b4

1 changed files with 48 additions and 24 deletions

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drivers/irqchip/irq-brcmstb-l2.c

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