On Wed, Apr 26, 2017 at 09:17:37AM +0000, Pierre Yves MORDRET wrote:
> >> +
> >> + ret = of_property_read_u32(node, "dma-channels",
> >> + &dmamux->dmamux_channels);
> >
> > can we have property_xxx calls alone, that way driver is not strictly
> > dependent on of
>
> Can you please explain what you are asking for ? Not sure to understand
> correctly.
Use device_property_read_u32() which is a generic property API.
> >> +static int __init stm32_dmamux_init(void)
> >> +{
> >> + return platform_driver_register(&stm32_dmamux_driver);
> >> +}
> >> +arch_initcall(stm32_dmamux_init);
> >
> > why not module init, wouldnt defer probe solve the dependencies
> >
>
> The reason behind many devices (device_initcall level) rely on DMAs. If
> init is deferred DMAMUX driver will be probed twice if dependents rely
> on it. This sounds not a good call. This explains arch_initcall level.
Why not deferred probe was introduced to help with dependencies...
--
~Vinod
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