Messages in this thread |  | | | Date | Tue, 21 Aug 2012 17:50:28 +0530 | | Subject | Re: [RFC/PATCH 4/4] gpio: smscece: Add support for gpio IO expander feature | | From | "Poddar, Sourav" <> |
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Hi,
On Tue, Aug 21, 2012 at 5:30 PM, Felipe Balbi <balbi@ti.com> wrote: > Hi, > > On Tue, Aug 21, 2012 at 05:17:37PM +0530, Poddar, Sourav wrote: >> >> + if (type & IRQ_TYPE_LEVEL_HIGH) >> >> + sg->int_lvl[bank] |= bit; >> >> + else if (type & IRQ_TYPE_LEVEL_LOW) >> >> + sg->int_lvl[bank] &= ~bit; >> >> + else >> >> + return -EINVAL; >> > >> > this looks wrong. You could have a user who wants to trigger on both >> > HIGH and LOW levels, no ? >> > >> Yes, I think there can be a scenario where gpio_keys are attached >> to this driver and signals a "key press" at low and "key release" at >> high. ? >> Will figure out a way to add support to check for case where >> both High and low levels are used. > > could probably be done on a separate patch, maybe... Just now I saw that > HIGH and LOW levels use the same bit. > If I am understanding correctly, if they both uses the same bit we cannot use both for a particular user. ? > -- > balbi
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