Re: [PATCH] arm64: dts: rockchip: Change RK809 PMIC interrupt polarity

[Miquel Raynal <miquel.raynal@bootlin.com>]

Hi Heiko,

Heiko Stuebner <heiko@sntech.de> wrote on Fri, 06 Dec 2019 16:48:00
+0100:

> Hi Miquel,
> 
> Am Freitag, 6. Dezember 2019, 16:42:47 CET schrieb Miquel Raynal:
> > PMIC interrupt can be active high or active low depending on BIT(1) of
> > the GPIO_INT_CFG pin. The default is 0x1, which means active
> > high. Change the polarity in the device tree to reflect the default
> > state.
> > 
> > Without this and with the current code base, the interrupt never stops
> > triggering while the MFD driver does not see anything to
> > check/clear/mask so after 100000 spurious IRQs, the kernel simply
> > desactivates the interrupt:
> > 
> >         irq 36: nobody cared (try booting with the "irqpoll" option)
> >         [...]
> >         handlers:
> >         [<(____ptrval____)>] irq_default_primary_handler threaded
> > 	[<(____ptrval____)>] regmap_irq_thread
> >         Disabling IRQ #36
> > 
> > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>  
> 
> *coughs slightly*
> 
> mfd: rk808: Set RK817 interrupt polarity to low
> https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git/commit/drivers/mfd/rk808.c?h=for-mfd-next&id=dbd16ef53487084816a20f662423ab543a75fc83
> 
> Should be in the current merge window already I guess ;-)

This time I swear I checked your tree. But this time we did not ended
with the same fix so I missed this one *again* :)

> 
> Having this consistent over all rk8xx seemed nicer.

I'm fine with this approach too.

Thanks,
Miquèl