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SubjectRe: [PATCH 1/3] drivers: misc: add omap_hwspinlock driver
On Tue, Oct 19, 2010 at 7:16 PM, Kevin Hilman
<khilman@deeprootsystems.com> wrote:
> Ohad Ben-Cohen <ohad@wizery.com> writes:
>
>> From: Simon Que <sque@ti.com>
>>
>> Add driver for OMAP's Hardware Spinlock module.
>>
>> The OMAP Hardware Spinlock module, initially introduced in OMAP4,
>> provides hardware assistance for synchronization between the
>> multiple processors in the device (Cortex-A9, Cortex-M3 and
>> C64x+ DSP).
>
...

>> +config OMAP_HWSPINLOCK
>> +     bool "OMAP Hardware Spinlock module"
>
> Should be tristate

Agree,

> so it can also be built as a module by default.
>
> e.g., when building multi-OMAP kernels, no reason or this to be
> built-in.  It can then be loaded as a module on OMAP4 only.

But considering the current built-in use cases (i2c) we would then
need to have the relevant MACH_OMAP4_* select OMAP_HWSPINLOCK (only on
the OMAP4 machines on which the I2C bus is shared).


>
> Kevin
>
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