linux-kernel - Re: [PATCH v2 12/21] ARM: tegra: clock: Add shared bus clock type

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Date:	Sun, 20 Feb 2011 20:15:25 -0800
From:	Olof Johansson <olof@...om.net>
To:	Colin Cross <ccross@...roid.com>
Cc:	linux-tegra@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	konkers@...roid.com, sboyd@...eaurora.org,
	Russell King <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 12/21] ARM: tegra: clock: Add shared bus clock type

Hi,

On Sat, Feb 19, 2011 at 2:25 PM, Colin Cross <ccross@...roid.com> wrote:
> Some clocks may have multiple downstream users that need to request a
> higher clock rate.  Shared bus clocks provide a unique shared_bus_user
> clock to each user.  The frequency of the bus is set to the highest
> enabled shared_bus_user clock, with a minimum value set by the
> shared bus.  Drivers can use clk_enable and clk_disable to enable
> or disable their requirement, and clk_set_rate to set the minimum rate.
>
> Signed-off-by: Colin Cross <ccross@...roid.com>

[...]
> diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c
> index a1c86d8..dd53af3 100644
> --- a/arch/arm/mach-tegra/tegra2_clocks.c
> +++ b/arch/arm/mach-tegra/tegra2_clocks.c
[...]

> +       c->u.shared_bus_user.rate = c->parent->max_rate;
> +       c->state = OFF;
> +#ifdef CONFIG_DEBUG_FS
> +       c->set = 1;
> +#endif
> +
> +       spin_lock_irqsave(&c->parent->spinlock, flags);


A later patch in the series removes the ifdef. Might as well remove it
here. Also, should be c->set = true, which that patch also does. :)

With that fixed:

Acked-by: Olof Johansson <olof@...om.net>
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