Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe

From	Linus Walleij <linus.walleij@linaro.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe
Date	2016-09-15 14:50 +0200
Message-ID	<shEh4-75Z-25@gated-at.bofh.it> (permalink)
References	(6 earlier) <sgVtD-24i-5@gated-at.bofh.it> <sh2Ya-6XB-21@gated-at.bofh.it> <shdJU-6Vq-9@gated-at.bofh.it> <shhNw-Wq-7@gated-at.bofh.it> <shk8G-2tN-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Wed, Sep 14, 2016 at 5:12 PM, Mika Westerberg
<mika.westerberg@linux.intel.com> wrote:
> On Wed, Sep 14, 2016 at 02:46:01PM +0200, Linus Walleij wrote:
>> > I'm going to re-read the hardware spec and see if there is anything we
>> > can do about this. The newer hardware (Skylake, Broxton) has a bit that
>> > tells the IRQ is routed directly to I/O-APIC but unfortunately Braswell
>> > misses that. There may be something else, though.
>>
>> So as far as we can determine:
>>
>> (A) we are running on Braswell and
>> (B) we are probing this driver
>>
>> we can conclude that
>>
>> (C) IRQs A,B,C are reserved by BIOS?
>>
>> That sounds doable?
>
> Yes, it's doable but that requires some hard coding in the driver :-/

From my point of view that is the lesser of two evils.

We only have hard-coding (syntactic) madness over having
behaviour-dependent (semantic) madness.

Yours,
Linus Walleij

Thread

Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-11 10:10 +0200
  Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Phidias Chiang <phidias.chiang@canonical.com> - 2016-09-12 09:00 +0200
    Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-12 11:10 +0200
      Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Phidias Chiang <phidias.chiang@canonical.com> - 2016-09-12 15:10 +0200
        Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-12 15:30 +0200
          Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-13 11:20 +0200
            Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-13 11:40 +0200
              Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-13 14:30 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-13 15:00 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-13 23:00 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-14 10:30 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-14 14:50 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-14 17:20 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-15 14:50 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 17:50 +0200
                [PATCH 2/2] pinctrl: cherryview: Do not add all southwest and north GPIOs to IRQ domain Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 18:00 +0200
                [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are added to IRQ domain Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 18:00 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Marc Zyngier <marc.zyngier@arm.com> - 2016-09-15 18:10 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 20:20 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Thomas Gleixner <tglx@linutronix.de> - 2016-09-15 21:00 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Linus Walleij <linus.walleij@linaro.org> - 2016-09-18 13:20 +0200

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