Re: [PATCH 25/35] ARM: davinci: cp-intc: use the new-style config structure

Bartosz Golaszewski
2019-02-08T16:27:35Z

wt., 5 lut 2019 o 01:29 David Lechner <david@lechnology.com> napisał(a):
>
> On 1/31/19 7:39 AM, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> >
> > Modify the cp-intc driver to take all its configuration from the new
> > config structure. Stop referencing davinci_soc_info in any way.
> > Move the declaration for davinci_cp_intc_init() to
> > irq-davinci-cp-intc.h and make it take the new config structure as
> > parameter. Convert all users to the new version.
> >
> > Also: since the two da8xx SoCs default all irq priorities to 7, just
> > drop the priority configuration at all and hardcode the channels to 7.
>
> As mentioned in a comment on a different patch, this isn't strictly
> true (although in practice, it probably is).
>
> This patch deletes a code path with the comment "Default everything
> to channel 15 if priority not specified.", so it is possible (although
> unlikely) that this patch could change a priority of some IRQ that is
> being used.
>

This only happens if no priorities are specified. Otherwise we just
iterate over the provided array and set priorities for all interrupts.

Bart

> >
> > It will simplify the driver code and make our lives easier when it
> > comes to device-tree support.
> >
> > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > ---