Hello,
A device may be de-initialized and another loaded or two different devices
can be run simultaneously on the two cores.
It's also possible, as in our case, to implement a single device on both
the PRU's resulting in improved load sharing.
Make you driver compile with sparse "make C=1", you cast way too much
when accessing io mem. Use void __iomem * instead of u32 *.
With make C=1 I am receiving some warnings such as:
warning: cast removes address space of expression
drivers/mfd/da8xx_pru.c:61:17: warning: incorrect type in argument 1
(different base types)
drivers/mfd/da8xx_pru.c:61:17: expected void const volatile [noderef]
<asn:2>*<noident>
drivers/mfd/da8xx_pru.c:61:17: got int
drivers/mfd/da8xx_pru.c:66:28: warning: incorrect type in argument 1
(different address spaces)
I can remove all of these by casting to (__force void __iomem *) but is
this correct.
-SG
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