linux-kernel - [PATCH v2 00/11] qcom: ssbi-gpio: add support for hierarchical IRQ chip

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Date:   Thu,  7 Feb 2019 21:16:20 -0500
From:   Brian Masney <masneyb@...tation.org>
To:     linus.walleij@...aro.org, sboyd@...nel.org,
        bjorn.andersson@...aro.org, andy.gross@...aro.org,
        marc.zyngier@....com, lee.jones@...aro.org
Cc:     tglx@...utronix.de, shawnguo@...nel.org, dianders@...omium.org,
        linux-gpio@...r.kernel.org, nicolas.dechesne@...aro.org,
        niklas.cassel@...aro.org, david.brown@...aro.org,
        robh+dt@...nel.org, mark.rutland@....com, thierry.reding@...il.com,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: [PATCH v2 00/11] qcom: ssbi-gpio: add support for hierarchical IRQ chip

This patch series adds hierarchical IRQ chip support to ssbi-gpio so
that device tree consumers can request an IRQ directly from the GPIO
block rather than having to request an IRQ from the underlying PMIC.

For more background information, see the email thread with Linus
Walleij's excellent description of the problem at
https://www.spinics.net/lists/linux-gpio/msg34655.html.

These changes were tested by Linus Walleij on an APQ8060 DragonBoard.

See the notes on the individual patches for the changelog.

Brian Masney (9):
  pinctrl: qcom: ssbi-gpio: hardcode IRQ counts
  genirq: introduce irq_domain_translate_twocell
  mfd: pm8xxx: convert to v2 irq interfaces to support hierarchical IRQ
    chips
  mfd: pm8xxx: disassociate old virq if hwirq mapping already exists
  qcom: ssbi-gpio: add support for hierarchical IRQ chip
  arm: dts: qcom: apq8064: add interrupt controller properties
  arm: dts: qcom: msm8660: add interrupt controller properties
  arm: dts: qcom: mdm9615: add interrupt controller properties
  mfd: pm8xxx: revert "disassociate old virq if hwirq mapping already
    exists"

Linus Walleij (2):
  genirq: introduce irq_chip_mask_ack_parent()
  ARM: dts: qcom-apq8060: Fix up interrupt parents

 .../arm/boot/dts/qcom-apq8060-dragonboard.dts |  21 +--
 arch/arm/boot/dts/qcom-apq8064.dtsi           |  46 +-----
 arch/arm/boot/dts/qcom-mdm9615.dtsi           |   9 +-
 arch/arm/boot/dts/qcom-msm8660.dtsi           |  47 +-----
 drivers/mfd/qcom-pm8xxx.c                     |  75 ++++-----
 drivers/pinctrl/qcom/Kconfig                  |   1 +
 drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c      | 156 +++++++++++++++---
 include/linux/irq.h                           |   1 +
 include/linux/irqdomain.h                     |   5 +
 kernel/irq/chip.c                             |  11 ++
 kernel/irq/irqdomain.c                        |  45 +++--
 11 files changed, 234 insertions(+), 183 deletions(-)

-- 
2.17.2