From: swarren@wwwdotorg•org (Stephen Warren)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 09/14] pinctrl/abx500: use direct IRQ defines
Date: Thu, 07 Feb 2013 10:59:39 -0700 [thread overview]
Message-ID: <5113EB8B.4060002@wwwdotorg.org> (raw)
In-Reply-To: <CAF2Aj3jHe+mP0dU_BHThBV-va_iJLcFQedmWQOTaYafAZM1Yxg@mail.gmail.com>
On 02/07/2013 02:01 AM, Lee Jones wrote:
> I don't see myself on cc. Was that intentional?
The original patch was that way; I assume git send-email only CC'd you
on patches written by you.
> I quite like the idea of this.
>
> Stephen,
>
> It doesn't mean the other patch was wrong, it just transfers the math.
Ah, I see. The issue is that the code below clearly calculates the hwirq
differently, and it wasn't immediately obvious that this part of the
patch for example:
> struct abx500_gpio_irq_cluster ab8500_gpio_irq_cluster[] = {
> - GPIO_IRQ_CLUSTER(6, 13, 34),
> - GPIO_IRQ_CLUSTER(24, 25, 24),
> - GPIO_IRQ_CLUSTER(36, 41, 14),
> + GPIO_IRQ_CLUSTER(6, 13, AB8500_INT_GPIO6R),
> + GPIO_IRQ_CLUSTER(24, 25, AB8500_INT_GPIO24R),
> + GPIO_IRQ_CLUSTER(36, 41, AB8500_INT_GPIO36R),
> };
... actually changes the values in the table (AB8500_INT_GPIO6R is 40,
so when using that value, you need to subtract of the value 6 for the
base to get the original 34).
> I wouldn't squash it into mine. I like the transition and the
> possibility to revert it if there's been some mistake.
>
> (not to say there is one, but just in case.)
>
> Sent from my mobile Linux device.
>
> On Feb 7, 2013 12:14 AM, "Stephen Warren" <swarren@wwwdotorg•org
> <mailto:swarren@wwwdotorg•org>> wrote:
>
> On 02/05/2013 12:48 PM, Linus Walleij wrote:
> > From: Linus Walleij <linus.walleij@linaro•org
> <mailto:linus.walleij@linaro•org>>
> >
> > Make it harder to do mistakes by introducing the actual
> > defined ABx500 IRQ number into the IRQ cluster definitions.
> > Deduct cluster offset from the GPIO offset to make each
> > cluster coherent.
>
> Shouldn't this patch be squashed into the previous patch to avoid churn?
>
> > static struct abx500_pinctrl_soc_data ab9540_soc = {
>
> > @@ -273,8 +273,7 @@ static int abx500_gpio_to_irq(struct gpio_chip
> *chip, unsigned offset)
>
> > - hwirq = gpio + cluster->to_irq;
> > -
> > + hwirq = gpio - cluster->start + cluster->to_irq;
> > return
> irq_create_mapping(pct->parent->domain, hwirq);
>
> In particular, this change implies that the previous patch was simply
> incorrect, although I haven't really thought about it in detail.
> --
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next prev parent reply other threads:[~2013-02-07 17:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-05 19:48 [PATCH 00/14] reform the ABx500 IRQ handling Linus Walleij
2013-02-05 19:48 ` [PATCH 01/14] mfd: ab8500: prepare to handle AB8500 GPIO's IRQs correctly Linus Walleij
2013-02-05 19:48 ` [PATCH 02/14] mfd: ab8500: provide a irq_set_type() function Linus Walleij
2013-02-07 0:07 ` Stephen Warren
[not found] ` <CAF2Aj3iO+6j+T5C0X2Hh6TsvT4yaJ2cai6cC9DaiRAwL9n-dVw@mail.gmail.com>
2013-02-07 10:01 ` Linus Walleij
2013-02-05 19:48 ` [PATCH 03/14] mfd: ab8500: ensure new AB8500 pinctrl driver is probed correctly Linus Walleij
2013-02-07 0:08 ` Stephen Warren
2013-02-05 19:48 ` [PATCH 04/14] mfd: ab8500: allow AB9540 based devices to use ABX500 pinctrl Linus Walleij
2013-02-05 19:48 ` [PATCH 05/14] pinctrl/abx500: prevent error path from corrupting returning error Linus Walleij
2013-02-05 19:48 ` [PATCH 06/14] pinctrl/abx500: align GPIO cluster boundaries Linus Walleij
2013-02-05 19:48 ` [PATCH 07/14] pinctrl/abx500: move IRQ handling to ab8500-core Linus Walleij
2013-02-05 19:48 ` [PATCH 08/14] pinctrl/abx500: replace IRQ offsets with table read-in values Linus Walleij
2013-02-05 19:48 ` [PATCH 09/14] pinctrl/abx500: use direct IRQ defines Linus Walleij
2013-02-07 0:13 ` Stephen Warren
[not found] ` <CAF2Aj3jHe+mP0dU_BHThBV-va_iJLcFQedmWQOTaYafAZM1Yxg@mail.gmail.com>
2013-02-07 17:59 ` Stephen Warren [this message]
2013-02-08 8:25 ` Lee Jones
2013-02-08 17:06 ` Stephen Warren
2013-02-07 19:10 ` Linus Walleij
2013-02-05 19:48 ` [PATCH 10/14] pinctrl/abx500: add Device Tree support Linus Walleij
2013-02-05 19:48 ` [PATCH 11/14] ARM: ux500: remove irq_base property from platform_data Linus Walleij
2013-02-10 2:42 ` Olof Johansson
2013-02-10 15:01 ` Linus Walleij
2013-02-05 19:48 ` [PATCH 12/14] ARM: ux500: use real AB8500 IRQ numbers instead of virtual ones Linus Walleij
2013-02-05 19:48 ` [PATCH 13/14] ARM: ux500: enable AB8500 GPIO for HREF Linus Walleij
2013-02-07 0:17 ` Stephen Warren
2013-02-07 8:30 ` Arnd Bergmann
2013-02-05 19:48 ` [PATCH 14/14] ARM: ux500: allow Snowball access to the AB8500 GPIO pins Linus Walleij
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