[linux-sunxi] Re: [PATCH v5 06/20] mfd: axp20x: Allow AXP chips without interrupt lines

Chen-Yu Tsai wens at csie.org
Tue Feb 2 02:58:38 EST 2021

On Thu, Jan 28, 2021 at 6:15 PM Maxime Ripard <maxime at cerno.tech> wrote:
> On Wed, Jan 27, 2021 at 05:24:46PM +0000, Andre Przywara wrote:
> > Currently the AXP chip requires to have its IRQ line connected to some
> > interrupt controller, and will fail probing when this is not the case.
> >
> > On a new Allwinner SoC (H616) there is no NMI pin anymore, and at
> > least one board does not connect the AXP's IRQ pin to anything else,
> > so the interrupt functionality of the AXP chip is simply not available.
> >
> > Check whether the interrupt line number returned by the platform code is
> > valid, before trying to register the irqchip. If not, we skip this
> > registration, to avoid the driver to bail out completely.
> >
> > Signed-off-by: Andre Przywara <andre.przywara at arm.com>
> Acked-by: Maxime Ripard <mripard at kernel.org>

Acked-by: Chen-Yu Tsai <wens at csie.org>

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