Messages in this thread | | | Date | Mon, 7 Oct 2019 12:01:22 +0200 | From | Miquel Raynal <> | Subject | Re: [PATCH v2 2/7] iio: adc: max1027: Make it optional to use interrupts |
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Hi Jonathan,
Jonathan Cameron <jic23@kernel.org> wrote on Sun, 6 Oct 2019 11:18:37 +0100:
> On Thu, 3 Oct 2019 19:33:56 +0200 > Miquel Raynal <miquel.raynal@bootlin.com> wrote: > > > The chip has a 'start conversion' and a 'end of conversion' pair of > > pins. They can be used but this is absolutely not mandatory as regular > > polling of the value is totally fine with the current internal > > clocking setup. Turn the interrupts optional and do not error out if > > they are not inquired in the device tree. This has the effect to > > prevent triggered buffers use though. > > > > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> > > Hmm. I haven't looked a this in a great deal of depth but if we support > single channel reads it should be possible to allow the use of a > trigger from elsewhere. Looks like a fair bit of new code would be needed > to support that though. So perhaps this is a good first step. > > It's a bit annoying that the hardware doesn't provide a EOC bit > anywhere in the registers. That would have allowed us to be a bit > cleverer.
I totally agree. Actually, this chip does not support any 'register read', the only things we can read are measures (temperature/voltages).
Thanks, Miquèl
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