ssb: improve device disabling
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Cover letter [PATCH 0/2] ssb: improve device disabling
Quoted 8 lines · Rafa? Mi?ecki
With that patches we follow specs and (as recently proved by MMIO dumps) wl.
The more important patch is the first one. It detects problem (and warns) with SSB when it is in some broken state. We can for example hit such an issue when enabling DMA on 14e4:4329 (N-PHY, rev 1). The real fix is now known yet, but not we at least get warning. Switching to PIO on that card does not raise warning anymore (as expected).
Quoted 7 lines
We all hate regressions and Michal says than enabling/disabling SSB device can be tricky. I have tested that patches with few b43 driven devices:
14e4:4318 (BCM4318)
14e4:4315 (BCM4312)
14e4:4329 (BCM4321)
14e4:4328 (BCM4321)
14e4:432b (BCM4322)
I tested 14e4:4311 (BCM4311) and found no problems.
Larry