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[v3,0/2] mwifiex: Work around firmware bugs on 88W8897 chip

Message ID 20211011133224.15561-1-verdre@v0yd.nl (mailing list archive)
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Series mwifiex: Work around firmware bugs on 88W8897 chip | expand

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Jonas Dreßler Oct. 11, 2021, 1:32 p.m. UTC 
This is the third revision of this patch, here's v1 and v2:
v1: https://lore.kernel.org/linux-wireless/20210830123704.221494-1-verdre@v0yd.nl/
v2: https://lore.kernel.org/linux-wireless/20210914114813.15404-1-verdre@v0yd.nl/

Changes between v2 and v3:
 - Use consistent terminology (PCIe, USB)
 - Read a generic register (PCI_VENDOR_ID) in the first patch since it's not 
 the actual readback that fixes the crash. I decided against using usleep()
 because reading a register has proven to work on lots of devices for a few 
 months now, and usleep() only appears to work when a certain duration is used.
 - Use read_poll_timeout() for wakeup patch

Jonas Dreßler (2):
  mwifiex: Read a PCI register after writing the TX ring write pointer
  mwifiex: Try waking the firmware until we get an interrupt

 drivers/net/wireless/marvell/mwifiex/pcie.c | 36 ++++++++++++++++++---
 1 file changed, 31 insertions(+), 5 deletions(-)