Bug 209751

Summary:	[ath9k] Mac Chip Rev 0xfffc0.f is not supported by this driver
Product:	Drivers	Reporter:	vtolkm
Component:	network-wireless	Assignee:	drivers_network-wireless (drivers_network-wireless)
Status:	RESOLVED INVALID
Severity:	high	CC:	davem
Priority:	P1
Hardware:	ARM
OS:	Linux
Kernel Version:	5.5.9 - 5.9.1	Subsystem:
Regression:	Yes	Bisected commit-id:

Description vtolkm 2020-10-19 20:00:21 UTC

device: Turris Omnia
WLan card: Compex wle900vx (Qualcomm Atheros AR9287 miniPCIe)

------

works with kernel 5.4.72

ath9k 0000:03:00.0: assign IRQ: got 52
ath9k 0000:03:00.0: enabling device (0140 -> 0142)
ath9k 0000:03:00.0: enabling bus mastering
ath: EEPROM regdomain: 0x0
ath: EEPROM indicates default country code should be used
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a


does not work with kernel 5.8.16

ath9k 0000:03:00.0: assign IRQ: got 52
ath9k 0000:03:00.0: enabling device (0000 -> 0002)
ath9k 0000:03:00.0: enabling bus mastering
ath: phy0: Mac Chip Rev 0xfffc0.f is not supported by this driver
ath: phy0: Unable to initialize hardware; initialization status: -95
ath9k 0000:03:00.0: Failed to initialize device
ath9k: probe of 0000:03:00.0 failed with error -95

Comment 1 vtolkm 2020-10-23 13:19:28 UTC

Correction on the WLan-Card model, being the WLE200N2 from Compex (Qualcomm Atheros AR9287 miniPCIe)

Otherwise, the regression appears being introduced with the 5.5 branch, run test 5.5.19 and the issue exhibits. Could not narrow it down to a particular ath9 commit since the kernel in those instance does not compile.

Comment 2 vtolkm 2020-10-23 17:29:13 UTC

Not sure whether there is a potential correlation with bug 209833

Comment 3 vtolkm 2020-10-23 19:03:19 UTC

closing as the correlation with bug 209833 confirmed, i.e. the issue with PCIEASPM