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c0f460ffeb
Jonathan writes:
Third set of IIO new device support, cleanups and features for the 4.19 cycle.
This is a somewhat sneaky late pull request given Linus has announced
a likely 1 week delay. If it is too late I'll resend after the merge
window. I merged in the fixes branch as those are primarily around
things queued for the merge window.
Particulary good to see the output of our Himanshu Jha, a GSOC student
who developed the bme680 driver.
New device support:
* bme680 gas sensor (with temperature, humidity and pressure)
- new driver to support this device
* vcn4000
- support vcnl4200 (lots of rework to allow this)
- ids added for VCNL4010 and VCNL4020 sensors
New features:
* ad9523
- support the various external signal options via gpios.
Cleanups and fixes
* ad_sigma_delta
- unsigned long for a timeout.
* ad9523
- fix a wrong return value that was indicating successful write failed
and might lead to an infinite loop.
* si1133
- fix an impossible test.
- fix an uninitialsed variable by reading from the device in all paths.
* xilinx xadc
- check for return values in clk related functions
- limit the pcap clock frequency to supported ranges.
- stash the irq to avoid calling platform_get_irq from the remove path.
- ensure the irq is actually requested before we enable the hardware to
output it.
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