Groups > linux.kernel > #1200101

Re: Armadaxp GPIO interrupts

From	Andrew Lunn <andrew@lunn.ch>
Newsgroups	linux.kernel
Subject	Re: Armadaxp GPIO interrupts
Date	2015-08-04 17:50 +0200
Message-ID	<pTMDv-6sx-17@gated-at.bofh.it> (permalink)
References	<pTMDv-6sx-19@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue, Aug 04, 2015 at 08:52:17PM +0530, raghu MG wrote:
> Hello,
> 
> I am working on a card which as GPIOs connected to external I/O's. The
> board consists of ARMADAXP 78460 host cpu.
> 
> Board currently runs Linux-4.1 with modified  armada-xp-gp.dtb for ArmadaXP.
> I enabled "orion-gpio" driver to initialize GPIOs as given in
> armada-xp-mv78460.

What kernel configuration are you using? Do you have the same problem
with multi_v7_defconfig and mvebu_v7_defconfig?
 
> The driver while initializing calls irq_domain_add_simple which throws up
> following warning
> "irq: Cannot allocate irq_descs @ IRQ47, assuming pre-allocated"
> The warning repeats for next set(32-63  & 64-66).
>
> Also the GPIO IRQs are not getting listed in cat /proc/interrupts

irq_domain_add_simple() returning an error is fatal for the probe. The
driver will not be loaded, so more than interrupts will be missing,
all the gpios will be missing.

    Andrew
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Thread

Re: Armadaxp GPIO interrupts Andrew Lunn <andrew@lunn.ch> - 2015-08-04 17:50 +0200
  Re: Armadaxp GPIO interrupts raghu MG <raghumag@gmail.com> - 2015-08-05 07:10 +0200
    Re: Armadaxp GPIO interrupts Andrew Lunn <andrew@lunn.ch> - 2015-08-05 18:30 +0200
      Re: Armadaxp GPIO interrupts raghu MG <raghumag@gmail.com> - 2015-08-06 08:00 +0200
        Re: Armadaxp GPIO interrupts Andrew Lunn <andrew@lunn.ch> - 2015-08-06 15:40 +0200
          Re: Armadaxp GPIO interrupts raghu MG <raghumag@gmail.com> - 2015-08-06 19:00 +0200
            Re: Armadaxp GPIO interrupts Andrew Lunn <andrew@lunn.ch> - 2015-08-06 19:30 +0200
              Re: Armadaxp GPIO interrupts raghu MG <raghumag@gmail.com> - 2015-08-06 20:20 +0200
                Re: Armadaxp GPIO interrupts raghu MG <raghumag@gmail.com> - 2015-08-07 23:00 +0200
                Re: Armadaxp GPIO interrupts Andrew Lunn <andrew@lunn.ch> - 2015-08-08 00:20 +0200
  Re: Armadaxp GPIO interrupts raghu MG <raghumag@gmail.com> - 2015-08-05 17:10 +0200

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