[lkml]   [2019]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v3 2/6] spmi: pmic-arb: convert to v2 irq interfaces to support hierarchical IRQ chips
On Fri, Jan 11, 2019 at 02:07:09PM -0800, Stephen Boyd wrote:
> Quoting Brian Masney (2019-01-09 17:12:54)
> > Convert the spmi-pmic-arb IRQ code to use the version 2 IRQ interface
> > in order to support hierarchical IRQ chips. This is necessary so that
> > spmi-gpio can be setup as a hierarchical IRQ chip with pmic-arb as the
> > parent. IRQ chips in device tree should be usable from the start without
> > the consumer having to make an additional call to gpio[d]_to_irq() to
> > get the proper IRQ on the parent. Driver was tested on a LG Nexus 5
> > (hammerhead) phone.
> >
> > Signed-off-by: Brian Masney <>
> > ---
> > Changes since v2:
> > - None
> >
> > Changes since v1:
> > - Add intspec variable to qpnpint_irq_domain_translate to reduce the
> > overall diff.
> > - Remove irq_domain_disassociate hack.
> I thought we would need to keep that around? And then dispose of the
> hack later on. Won't this just wreck the world almost immediately
> because the MFD is counting irqs from DT?

We won't run into the issue with the MFD counting the IRQs since the
interrupts property was removed and the interrupt-controller property
was added to device tree in the same patch. The interrupts property that
we ultimately don't need was the issue that I ran into with the MFD

However to be certain, I retested and we need the temporary hack since
pmic_gpio_to_irq in this series uses the new SPMI IRQ controller. It
breaks as soon as patch 4 in this series (qcom: spmi-gpio: add support
for hierarchical IRQ chip) is applied but starts working again at patch
5 (ARM: dts: qcom: pm8941: add interrupt controller).

I'll respin this series this weekend with the temporary hack and drop it
later in the series. Sorry about the noise and thanks for the


 \ /
  Last update: 2019-01-12 00:00    [W:0.046 / U:6.964 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site