Re: [PATCH 01/15] irqchip: Allow to compile bcmstb on other platforms

[Maxime Ripard <maxime@cerno.tech>]

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Hi Marc,

On Thu, Dec 10, 2020 at 05:59:09PM +0000, Marc Zyngier wrote:
> On 2020-12-10 13:46, Maxime Ripard wrote:
> > The BCM2711 uses a number of instances of the bcmstb-l2 controller in
> > its
> > display engine. Let's allow the driver to be enabled through KConfig.
> > 
> > Signed-off-by: Maxime Ripard <maxime@cerno.tech>
> > ---
> >  drivers/irqchip/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
> > index c6098eee0c7c..f1e58de117dc 100644
> > --- a/drivers/irqchip/Kconfig
> > +++ b/drivers/irqchip/Kconfig
> > @@ -131,7 +131,7 @@ config BCM7120_L2_IRQ
> >  	select IRQ_DOMAIN
> > 
> >  config BRCMSTB_L2_IRQ
> > -	bool
> > +	bool "Broadcom STB L2 Interrupt Controller"
> >  	select GENERIC_IRQ_CHIP
> >  	select IRQ_DOMAIN
> 
> I'm always sceptical of making interrupt controllers user-selectable.
> Who is going to know that they need to pick that one?
> 
> I'd be much more in favour of directly selecting this symbol
> from DRM_VC4_HDMI_CEC, since there is an obvious dependency.

It's a bit weird to me that the HDMI CEC support selects it, since that
interrupt controller is external and here no matter what. Would
selecting it from the ARCH_* Kconfig option work for you?

Thanks!
Maxime

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