linux-kernel - [PATCH v2 0/8] qcom: support wakeup capable GPIOs

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Date:   Thu, 24 Jan 2019 13:21:57 -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 v2 0/8] qcom: support wakeup capable GPIOs

Hi all,

This is a bug fix submission of the v1 posted here [1]. The discussion on how
to represent the wakeup-parent interrupt controller is on-going [2] here. The
reiew comments in [1], from Doug and Stephen are addressed in this patch.

The series attempts to add GPIO chip in hierarchy with PDC interrupt controller
that can detect and wakeup the GPIOs routed to it, when the system is
suspend/deep sleep mode.

Changes in v2:
	- Fix bug related to unmasking PDC interrupt
	- Address review comments from Doug and Stepehn
	- Rebase on top of 5.0-rc2
	- Fix signed-off-by tags
	- Enable QCOM_PDC in defconfig
	
Do note that this patch uses the register address convention updated by Bjorn
per [3].

Thanks,
Lina

[1]. https://lkml.org/lkml/2018/12/19/807
[2]. https://lkml.org/lkml/2018/12/19/813
[3]. https://lkml.org/lkml/2019/1/17/924

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

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

 .../bindings/pinctrl/qcom,sdm845-pinctrl.txt  |   7 +-
 arch/arm64/boot/dts/qcom/sdm845.dtsi          |  10 +
 arch/arm64/configs/defconfig                  |   1 +
 drivers/gpio/gpiolib.c                        |  15 +-
 drivers/irqchip/qcom-pdc.c                    | 204 +++++++++++++++++-
 drivers/pinctrl/qcom/pinctrl-msm.c            | 133 ++++++++++--
 include/linux/gpio/driver.h                   |   6 +
 include/linux/irqdomain.h                     |   1 +
 include/linux/soc/qcom/irq.h                  |  23 ++
 9 files changed, 371 insertions(+), 29 deletions(-)
 create mode 100644 include/linux/soc/qcom/irq.h

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