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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thursday 21 May 2020 09:26:34 CEST Maxime Ripard wrote: [...] > On Tue, May 19, 2020 at 10:59:26AM +0200, J=E9r=F4me Pouiller wrote: [...] = > > The chip WF200 allows to use a dedicated line for the IRQ (aka > > "Out-Of-Band" IRQ). So I have enabled this feature with a edge triggere= d = > > IRQ. However, I missed some IRQs. Indeed, it seems that Allwinner use a = > > 32KHz clock to sample the IRQs. It is not fast enough for us. I think i= t = > > explains why we miss some IRQs (using the attribute "input-debounce"[2]= , = > > I tried to enable the 24Mhz clock, but without success). > = > Without success as in you couldn't make it use the 24MHz clock, or using = it > didn't change anything? I didn't make the change myself, but it seems that the board was unable to run correctly when the attribute "input-debounce" was used. Since "input-debounce" impacts the whole GPIO bank, I think it has impacted other devices. Finally, I didn't spend so much time on this and I don't know if it the 24Mhz clock has been finally correctly enabled. -- = J=E9r=F4me Pouiller _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel