From: Kevin Hilman <khilman@ti.com>
To: "Varadarajan, Charulatha" <charu@ti.com>
Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 02/15] OMAP: GPIO: remove MPUIO handling from _clear_gpio_irqbank()
Date: Tue, 03 May 2011 09:27:36 -0700 [thread overview]
Message-ID: <87hb9bg35z.fsf@ti.com> (raw)
In-Reply-To: <BANLkTinmf5EWwbWrYJHz=Z19v1EkG-MPvg@mail.gmail.com> (Charulatha Varadarajan's message of "Mon, 25 Apr 2011 19:18:49 +0530")
"Varadarajan, Charulatha" <charu@ti.com> writes:
> Kevin,
>
> On Sat, Apr 23, 2011 at 04:31, Kevin Hilman <khilman@ti.com> wrote:
>> Remove the OMAP1 #ifdef and MPUIO special case for _clear_gpio_irqbank()
>>
>> The MPUIOs do not need a register access to ack/clear the IRQ status,
>> since reading the IRQ status clears it. In addition, the MPUIO
>> irq_chip has an empty ack method, so _clear_gpio_irqbank() is never
>> used for MPUIOs.
>>
>> Signed-off-by: Kevin Hilman <khilman@ti.com>
>> ---
>> arch/arm/plat-omap/gpio.c | 6 ------
>> 1 files changed, 0 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
>> index fe6971a..8b5ca6e 100644
>> --- a/arch/arm/plat-omap/gpio.c
>> +++ b/arch/arm/plat-omap/gpio.c
>> @@ -770,12 +770,6 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
>> void __iomem *reg = bank->base;
>>
>> switch (bank->method) {
>> -#ifdef CONFIG_ARCH_OMAP1
>> - case METHOD_MPUIO:
>> - /* MPUIO irqstatus is reset by reading the status register,
>> - * so do nothing here */
>> - return;
>> -#endif
>
> The default case has a "WARN_ON(1)". I guess WARN_ON()
> is not required for METHOD_MPUIO.
As stated in the changelog, this function is never called for MPUIO
banks, so the warning should not be hit.
Kevin
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next prev parent reply other threads:[~2011-05-03 16:27 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-22 23:01 [PATCH 00/15] OMAP: GPIO: clean up: pass register offsets via pdata Kevin Hilman
2011-04-22 23:01 ` [PATCH 01/15] OMAP: GPIO: _clear_gpio_irqbank: fix flushing of posted write Kevin Hilman
2011-04-22 23:01 ` [PATCH 02/15] OMAP: GPIO: remove MPUIO handling from _clear_gpio_irqbank() Kevin Hilman
2011-04-25 13:48 ` Varadarajan, Charulatha
2011-05-03 16:27 ` Kevin Hilman [this message]
2011-04-22 23:01 ` [PATCH 03/15] OMAP: GPIO: move bank width into struct gpio_bank Kevin Hilman
2011-04-22 23:01 ` [PATCH 04/15] OMAP: GPIO: _get_gpio_irqbank_mask: replace hard-coded mask with bank->width Kevin Hilman
2011-04-22 23:01 ` [PATCH 05/15] OMAP: GPIO: replace get_gpio_index() by using bank width Kevin Hilman
2011-04-22 23:01 ` [PATCH 06/15] OMAP: GPIO: remove get_gpio_bank() Kevin Hilman
2011-04-22 23:01 ` [PATCH 07/15] OMAP: GPIO: move register offset defines into gpio.h Kevin Hilman
2011-04-22 23:02 ` [PATCH 08/15] OMAP: GPIO: consolidate direction, input, output, remove #ifdefs Kevin Hilman
2011-04-22 23:02 ` [PATCH 09/15] OMAP: GPIO: consolidate IRQ status handling, " Kevin Hilman
2011-04-26 12:43 ` Varadarajan, Charulatha
2011-04-22 23:02 ` [PATCH 10/15] OMAP: GPIO: conslidate enable/disable of GPIO IRQs, remove ifdefs Kevin Hilman
2011-04-26 12:33 ` Varadarajan, Charulatha
2011-04-22 23:02 ` [PATCH 11/15] OMAP: GPIO: convert MPUIO IRQ over to generic irq_chip Kevin Hilman
2011-04-26 12:02 ` Varadarajan, Charulatha
2011-04-22 23:02 ` [PATCH 12/15] OMAP: GPIO: remove useless gpio_valid() & check_gpio() checks Kevin Hilman
2011-04-22 23:02 ` [PATCH 13/15] OMAP: GPIO: cleanup _set_gpio_wakeup(), remove ifdefs Kevin Hilman
2011-04-26 14:44 ` Varadarajan, Charulatha
2011-05-03 16:35 ` Kevin Hilman
2011-04-22 23:02 ` [PATCH 14/15] OMAP: GPIO: debounce remove SoC specific registers, use pdata Kevin Hilman
2011-04-22 23:02 ` [PATCH 15/15] OMAP: GPIO: cleanup show revision, remove cpu_is checks, display only once Kevin Hilman
2011-04-26 11:48 ` Varadarajan, Charulatha
2011-05-03 16:38 ` Kevin Hilman
2011-05-03 23:59 ` Kevin Hilman
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