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Some GPIOs are marked as wakeup capable and are routed to another interrupt controller that is an always-domain and can detect interrupts even when most of the SoC is powered off. The wakeup interrupt controller wakes up the GIC and replays the interrupt at the GIC. Setup the TLMM irqchip in hierarchy with the wakeup interrupt controller and ensure the wakeup GPIOs are handled correctly. Co-developed-by: Maulik Shah <mkshah@codeaurora.org> Signed-off-by: Lina Iyer <ilina@codeaurora.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/1573855915-9841-9-git-send-email-ilina@codeaurora.org ---- Changes in v2: - Address review comments - Fix Co-developed-by tag Changes in v1: - Address minor review comments - Remove redundant call to set irq handler - Move irq_domain_qcom_handle_wakeup() to this patch Changes in RFC v2: - Rebase on top of GPIO hierarchy support in linux-next - Set the chained irq handler for summary line |
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