[PATCH v2 12/21] ARM: tegra: clock: Add shared bus clock type
Colin Cross
ccross at android.com
Mon Feb 21 02:02:06 EST 2011
On Sun, Feb 20, 2011 at 8:15 PM, Olof Johansson <olof at lixom.net> wrote:
> Hi,
>
> On Sat, Feb 19, 2011 at 2:25 PM, Colin Cross <ccross at android.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 at android.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. :)
At this point in the series c->set is not defined for
CONFIG_DEBUG_FS=n, so dropping the #ifdef would break bisection, and I
left the = 1 in for consistency.
> With that fixed:
>
> Acked-by: Olof Johansson <olof at lixom.net>
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