From: Arnd Bergmann <arnd@arndb.de>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Lee Jones <lee.jones@linaro.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
STEricsson_nomadik_linux@list.st.com,
linus.walleij@stericsson.com,
broonie@opensource.wolfsonmicro.com,
Samuel Ortiz <sameo@linux.intel.com>
Subject: Re: [PATCH 5/8] mfd: Provide the PRCMU with its own IRQ domain
Date: Tue, 14 Aug 2012 09:42:54 +0000 [thread overview]
Message-ID: <201208140942.54773.arnd@arndb.de> (raw)
In-Reply-To: <CACRpkdZ7bMBytyDppV2sB1d1sUbDpPRqAQVOq8k4UOYdmg+Mkw@mail.gmail.com>
On Tuesday 14 August 2012, Linus Walleij wrote:
>
> On Thu, Aug 9, 2012 at 5:53 PM, Lee Jones <lee.jones@linaro.org> wrote:
>
> > +static struct irq_domain *db8500_irq_domain;
>
> So this is a good idea.
>
> > +int db8500_irq_get_virq(int irq);
>
> And I'm sceptic about this business. Why isn't this physical-to virtual
> mapping business confined to the core MFD driver? But enlighten me.
>
I believe MFD does not (yet) know about IRQ domains. The wm8994
and 88pm80x drivers do this slightly different by exporting
a foo_request_irq() function that performs the mapping.
Traditionally, an MFD would add an offset to the local IRQ number
to put the VIRQ into the IRQ resource, but this doesn't work when
you have domains other than legacy.
Arnd
next prev parent reply other threads:[~2012-08-14 9:43 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 15:53 [PATCH 0/8] Changes surrounding IRQs and IRQ domains Lee Jones
2012-08-09 15:53 ` [PATCH 1/8] of/irq: Create stub for of_irq_find_parent when !CONFIG_OF Lee Jones
2012-08-09 16:20 ` Rob Herring
2012-08-09 19:44 ` Lee Jones
2012-08-09 19:53 ` Rob Herring
2012-08-14 8:17 ` Linus Walleij
2012-08-09 15:53 ` [PATCH 2/8] irqdomain: Take interrupt-parent property into account if specified Lee Jones
2012-08-14 8:19 ` Linus Walleij
2012-08-31 9:44 ` Lee Jones
2012-08-31 13:58 ` Rob Herring
2012-08-09 15:53 ` [PATCH 3/8] ARM: ux500: Identify the PRCMU as an interrupt controller Lee Jones
2012-08-14 8:19 ` Linus Walleij
2012-08-09 15:53 ` [PATCH 4/8] ARM: ux500: Force AB8500 to use the GIC as its " Lee Jones
2012-08-14 8:20 ` Linus Walleij
2012-08-09 15:53 ` [PATCH 5/8] mfd: Provide the PRCMU with its own IRQ domain Lee Jones
2012-08-14 8:29 ` Linus Walleij
2012-08-14 9:42 ` Arnd Bergmann [this message]
2012-08-14 10:44 ` Linus Walleij
2012-08-20 8:36 ` Lee Jones
2012-08-20 12:10 ` Mark Brown
2012-08-20 12:55 ` Lee Jones
2012-08-20 16:29 ` Mark Brown
2012-08-20 16:49 ` Lee Jones
2012-08-20 17:51 ` Mark Brown
2012-08-21 8:56 ` Lee Jones
2012-08-21 9:50 ` Mark Brown
2012-08-21 10:54 ` Lee Jones
2012-08-21 11:03 ` Mark Brown
2012-08-21 12:02 ` Lee Jones
2012-08-21 16:52 ` Mark Brown
2012-08-22 8:17 ` Lee Jones
2012-08-22 11:19 ` Mark Brown
2012-08-22 11:55 ` Lee Jones
2012-08-22 15:48 ` Mark Brown
2012-08-20 9:36 ` Lee Jones
2012-08-20 10:49 ` Lee Jones
2012-08-09 15:53 ` [PATCH 6/8] mfd: Use interrupt-parent as IRQ controller if specified in DT Lee Jones
2012-08-14 8:22 ` Linus Walleij
2012-08-09 15:53 ` [PATCH 7/8] mfd: Use the AB8500's IRQ domain to convert hwirq to virq Lee Jones
2012-08-14 8:25 ` Linus Walleij
2012-09-19 0:00 ` Samuel Ortiz
2012-08-09 15:53 ` [PATCH 8/8] input: ab8500-ponkey: Rely on MFD core to convert IRQs to virtual Lee Jones
2012-08-14 8:31 ` Linus Walleij
2012-08-21 9:23 ` Lee Jones
2012-08-21 16:42 ` Dmitry Torokhov
2012-08-30 13:12 ` Lee Jones
2012-08-30 23:02 ` Dmitry Torokhov
2012-08-30 23:03 ` Dmitry Torokhov
2012-08-31 7:31 ` Lee Jones
2012-08-31 14:50 ` Dmitry Torokhov
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