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<
megi>
hmm a85a6c86c25be2d2a5f9c31491f612ce0edc7869
<
megi>
that breaks about every allwinner A13/A10 board
<
megi>
since axp has interrupts = <0>
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smaeul>
megi: hwirq != virq. this just prevents virq from being 0, so I don't think it breaks anything. see irq_domain_alloc_descs/__irq_alloc_descs
<
megi>
this may not, but something breaks A13
<
megi>
I get this warning from sun4i_irq_init in sun4i_gpadc_iio
<
megi>
so something's not right
<
megi>
I'm looking into it now
<
smaeul>
do you mind pasting actual text?
<
smaeul>
thank you :)
<
megi>
the issue is comming from some core code probably, because there's pretty much no change in relevant drivers code
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<
megi>
accessing any of the axp properties in sysfs always results in -6 ENXIO
<
megi>
looks like reverting the i2c-pm patch fixes it
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megi>
I get a warning about interrupts, but wifi now works, and axp communication works too
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<
smaeul>
were there any messages from the i2c driver? I'm surprised that suspending the clocks breaks only on A13
<
megi>
also other i2c controllers seemingly worked
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mripard>
jernej: it's just adding the iommmu handle to the cedrus DT node
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mripard>
(the argument is 3, instead of 0 for the DE)
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jernej>
does that automatically makes it work with iommu?
<
jernej>
for example, in deinterlace driver there is additional bit in one register for iommu
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mripard>
does it ?
<
mripard>
is it documented?
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mripard>
I didn't really need to do anything for cedrus though
<
mripard>
without it, the IOMMU will trigger some faults, and with it the faults are gone and the output is correct
<
mripard>
(looks correct at least)
<
mripard>
so it seems to just work for cedrus
<
jernej>
and few more comments in the rest of the code
<
jernej>
there is no datasheet for deinterlace core unfortunatelly
<
mripard>
I don't really know why that would be needed
<
jernej>
mripard: so vb2_dma_contig_memops are ok for iommu too or would be vb2_dma_sg_memops more appropriate for v4l2 m2m drivers?
<
mripard>
but if it is, we can have a check on whether there's an iommu property
<
mripard>
(or we could just assume it's always going to be there for the H6)
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jernej>
well, property could be present, but driver might not be loaded...
<
mripard>
dma_contig is using the iommu if available
<
mripard>
and if the driver isn't loaded, you'll get an EPROBE_DEFER
<
mripard>
so that situation shouldn't happen
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