From: Kevin Hilman <khilman@deeprootsystems.com>
To: ye janboe <janboe.ye@gmail.com>
Cc: tony@atomide.com, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.arm.linux.org.uk
Subject: Re: [PATCH] initialize gpio debounce register
Date: Fri, 19 Jun 2009 11:05:39 -0700 [thread overview]
Message-ID: <87r5xgw13g.fsf@deeprootsystems.com> (raw)
In-Reply-To: <af3ea28a0906190907q718f3ac7o122bf85db2f14322@mail.gmail.com> (ye janboe's message of "Fri\, 19 Jun 2009 11\:07\:02 -0500")
ye janboe <janboe.ye@gmail.com> writes:
> Hi,
> some bootloader may initialize debounce register and this will make
> dbclk not consist with the debounce register after linux kernel boot
> up.
>
> From 8f97e5b50e50627e9e4b40f5d4fba09d750aceb1 Mon Sep 17 00:00:00 2001
> From: janboe <janboe.ye@gmail.com>
> Date: Fri, 19 Jun 2009 10:56:02 -0500
> Subject: [PATCH] initialize gpio debounce register
>
> Signed-off-by: janboe <janboe.ye@gmail.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Tony, this should go into -fixes.
Kevin
> ---
> arch/arm/plat-omap/gpio.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
> index 7fd89ba..26b387c 100644
> --- a/arch/arm/plat-omap/gpio.c
> +++ b/arch/arm/plat-omap/gpio.c
> @@ -1585,6 +1585,7 @@ static int __init _omap_gpio_init(void)
> __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1);
> __raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1);
> __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG);
> + __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_DEBOUNCE_EN);
>
> /* Initialize interface clock ungated, module enabled */
> __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL);
> --
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next prev parent reply other threads:[~2009-06-19 18:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-19 16:07 [PATCH] initialize gpio debounce register ye janboe
2009-06-19 18:05 ` Kevin Hilman [this message]
2009-06-22 9:23 ` [APPLIED] " Tony Lindgren
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