This patch series adds hierarchical IRQ chip support to spmi-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. This work was tested on a LG Nexus 5 (hammerhead) phone. My status page at https://masneyb.github.io/nexus-5-upstream/ describes what is working so far with an upstream kernel. High-level changes since v2: - Dropped patch to mfd/qcom-spmi-pmic.c - Patch 3 is new and adds two new functions to gpiolib - Patch 6 is new and corrects the only other upstream user of spmi-gpio High-level changes since v1: - Patches 1 and 2 are new. This brought in a third subsystem (mfd). - I have detailed changelogs attached to the notes on patches 3-5. Brian Masney (6): pinctrl: qcom: spmi-gpio: hardcode IRQ counts spmi: pmic-arb: convert to v2 irq interfaces to support hierarchical IRQ chips gpio: add irq domain activate/deactivate functions qcom: spmi-gpio: add support for hierarchical IRQ chip ARM: dts: qcom: pm8941: add interrupt controller properties ARM: dts: qcom: pma8084: add interrupt controller properties arch/arm/boot/dts/qcom-pm8941.dtsi | 38 +------ arch/arm/boot/dts/qcom-pma8084.dtsi | 24 +--- drivers/gpio/gpiolib.c | 37 +++++++ drivers/pinctrl/qcom/pinctrl-spmi-gpio.c | 134 +++++++++++++++++++---- drivers/spmi/spmi-pmic-arb.c | 58 ++++++---- include/linux/gpio/driver.h | 5 + 6 files changed, 194 insertions(+), 102 deletions(-) -- 2.17.2
