Messages in this thread | | | From | Heiko Stübner <> | Subject | Re: [PATCH] pinctrl: rockchip: Enhance support for IRQ_TYPE_EDGE_BOTH | Date | Tue, 23 Aug 2022 12:00:34 +0200 |
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Am Montag, 22. August 2022, 11:03:08 CEST schrieb Linus Walleij: > On Mon, Aug 8, 2022 at 4:53 AM João H. Spies <jhlspies@gmail.com> wrote: > > > Switching between falling/rising edges for IRQ_TYPE_EDGE_BOTH on pins that > > require debounce can cause the device to lose events due to a desync > > between pin state and irq type. > > > > This problem is resolved by switching between IRQ_TYPE_LEVEL_LOW and > > IRQ_TYPE_LEVEL_HIGH instead. > > > > Fixes: 936ee26 ("gpio/rockchip: add driver for rockchip gpio") > > Signed-off-by: João H. Spies <jhlspies@gmail.com> > > No reaction from maintainers so I'm just gonna assume this fix is > correct and applied for fixes.
This plays with behavioral peculiarities of the gpio controller (using the level setting to hopefully prevent missing edge irqs), so doesn't follow
So I guess it really is more of a wait-and-see. And I guess as João seems to have experienced that issue, that will hopefully work for others too.
Heiko
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