Re: [PATCH RFC] timer: of: Create a platform_device before the framework is initialized

[Daniel Lezcano]

On 08/07/2025 18:10, Arnd Bergmann wrote:

[ ... ]

> The way I had expected this to work was that TIMER_OF_DECLARE_PDEV()
> always registers the platform_driver and just skips the
> section magic when it's in a loadable module.

Yes it would be a nice change, but it seems to be not possible for the 
early + builtin + module combination we have AFAICS.

What about to have two macros:

/*
 * Declares module_platform_driver
 * Assigns __driver.driver.of_match_table = __of_match
 * Assigns __driver.driver.name = __name
 */
TIMER_OF_DECLARE_PLATFORM_DRIVER(__name, __driver, __of_match)

/*
 * Does the same as the above but if MODULE is not set then then we
 * end up with timer-probe() instead of builtin_platform_driver
 */
TIMER_OF_DECLARE_EARLY_PLATFORM_DRIVER(__name, __driver, __of_match)

So when someone is converting a driver into a module, it can change the 
driver to use these macros instead.


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