linux-kernel - Re: [PATCHv2 4/4] ARM: tegra: irq: Add tegra

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Date:	Tue, 03 May 2011 10:29:33 +0100
From:	Will Deacon <will.deacon@....com>
To:	Colin Cross <ccross@...roid.com>
Cc:	lakml <linux-arm-kernel@...ts.infradead.org>,
	linux-tegra <linux-tegra@...r.kernel.org>,
	Marc Zyngier <Marc.Zyngier@....com>,
	Erik Gilling <konkers@...roid.com>,
	Olof Johansson <olof@...om.net>,
	Russell King <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2 4/4] ARM: tegra: irq: Add tegra_eoi

Hi Colin,

On Sun, 2011-05-01 at 23:27 +0100, Colin Cross wrote:
> Implement irq_eoi to allow the GIC irq chip flow controller to
> be changed to fasteoi.
> 
> Signed-off-by: Colin Cross <ccross@...roid.com>
> ---
> v2: Add tegra_eoi without removing tegra_ack, patch can now be
>     merged safely before Will Deacon's gic fasteoi patch
> 
>  arch/arm/mach-tegra/irq.c |    9 +++++++++
>  1 files changed, 9 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
> index da17491..4956c3c 100644
> --- a/arch/arm/mach-tegra/irq.c
> +++ b/arch/arm/mach-tegra/irq.c
> @@ -95,6 +95,14 @@ static void tegra_ack(struct irq_data *d)
>         tegra_irq_write_mask(d->irq, ICTLR_CPU_IEP_FIR_CLR);
>  }
> 
> +static void tegra_eoi(struct irq_data *d)
> +{
> +       if (d->irq < FIRST_LEGACY_IRQ)
> +               return;
> +
> +       tegra_irq_write_mask(d->irq, ICTLR_CPU_IEP_FIR_CLR);
> +}
> +
>  static int tegra_retrigger(struct irq_data *d)
>  {
>         if (d->irq < FIRST_LEGACY_IRQ)
> @@ -116,6 +124,7 @@ void __init tegra_init_irq(void)
>         }
> 
>         gic_arch_extn.irq_ack = tegra_ack;
> +       gic_arch_extn.irq_eoi = tegra_eoi;
>         gic_arch_extn.irq_mask = tegra_mask;
>         gic_arch_extn.irq_unmask = tegra_unmask;
>         gic_arch_extn.irq_retrigger = tegra_retrigger;
> --
> 1.7.4.1

Just the job!

Acked-by: Will Deacon <will.deacon@....com>

Thanks,

Will

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