linux-kernel - [PATCH v3 0/9] qcom: support wakeup capable GPIOs

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Message-Id: <20190222221850.26939-1-ilina@codeaurora.org>
Date:   Fri, 22 Feb 2019 15:18:41 -0700
From:   Lina Iyer <ilina@...eaurora.org>
To:     swboyd@...omium.org, evgreen@...omium.org, marc.zyngier@....com
Cc:     linux-kernel@...r.kernel.org, rplsssn@...eaurora.org,
        linux-arm-msm@...r.kernel.org, thierry.reding@...il.com,
        bjorn.andersson@...aro.org, dianders@...omium.org,
        linus.walleij@...aro.org, Lina Iyer <ilina@...eaurora.org>
Subject: [PATCH v3 0/9] qcom: support wakeup capable GPIOs

Hi all,

This series is based on idea of setting up a wakeup parent interrupt controller
for GPIOs that are wakeup capable. The patch is based on Thierry's hierarchical
GPIO irqdomains. Much of the idea stem's from Stephen's suggestions in [1] with
some fixes.

I am posting this series to help with the discussions around this approach.
Please take a look at the series and let me know your comments. We need to find
a good place to add the document the generic irqdomain-map bindings.

Thanks,
Lina

[1]. https://lkml.org/lkml/2018/12/19/813

Lina Iyer (7):
  irqdomain: add bus token DOMAIN_BUS_WAKEUP
  drivers: irqchip: add PDC irqdomain for wakeup capable GPIOs
  dt-bindings: sdm845-pinctrl: add wakeup interrupt parent for GPIO
  drivers: pinctrl: msm: setup GPIO irqchip hierarchy
  arm64: dts: qcom: add PDC interrupt controller for SDM845
  arm64: dts: qcom: setup PDC as wakeup parent for GPIOs for SDM845
  arm64: defconfig: enable PDC interrupt controller for Qualcomm SDM845

Stephen Boyd (1):
  of: irq: add helper to remap interrupts to another irqdomain

Thierry Reding (1):
  gpio: Add support for hierarchical IRQ domains

 .../bindings/pinctrl/qcom,sdm845-pinctrl.txt  |   7 +-
 arch/arm64/boot/dts/qcom/sdm845.dtsi          |  87 +++++++++++
 arch/arm64/configs/defconfig                  |   1 +
 drivers/gpio/gpiolib.c                        |  15 +-
 drivers/irqchip/qcom-pdc.c                    | 106 +++++++++++--
 drivers/of/irq.c                              | 125 ++++++++++++++++
 drivers/pinctrl/qcom/pinctrl-msm.c            | 141 ++++++++++++++++--
 include/linux/gpio/driver.h                   |   6 +
 include/linux/irqdomain.h                     |   1 +
 include/linux/of_irq.h                        |   1 +
 include/linux/soc/qcom/irq.h                  |  23 +++
 11 files changed, 486 insertions(+), 27 deletions(-)
 create mode 100644 include/linux/soc/qcom/irq.h

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