Hi, This is an attempt at using GPIO as wake up sources. Based on discussions with Stephen and Marc [1], the idea that is used here is to make PDC interrupt controller the parent of TLMM irqchip. Wakeup capable GPIO IRQs have corresponding parent interrupt in PDC and therefore the GIC. The TLMM irqchip has a summary line into the GIC for all regular non-wakeup interrupt. This idea uses Thierry's hierarchical GPIO [2] and is dependent on [3]. Also PDC device bindings published in [4] is needed. Kindly review the series. Thanks, Lina [1]. https://lore.kernel.org/patchwork/patch/998238/ [2]. https://lkml.org/lkml/2018/9/21/471 [3]. https://lkml.org/lkml/2018/9/21/474 [4]. https://lore.kernel.org/patchwork/patch/1008046/ Lina Iyer (3): drivers: pinctrl: msm: setup gpio irqchip in hierarchy with pdc irqchip dt-bindings: sdm845-pinctrl: add wakeup interrupt parent for GPIO arm64: dts: msm: add PDC wake irq maps for GPIOs for SDM845 .../bindings/pinctrl/qcom,sdm845-pinctrl.txt | 31 ++++- arch/arm64/boot/dts/qcom/sdm845.dtsi | 18 +++ drivers/pinctrl/qcom/pinctrl-msm.c | 125 +++++++++++++++++- 3 files changed, 169 insertions(+), 5 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
