Pali Rohár bee54028ce PCI: aardvark: Don't blindly enable ASPM L0s and don't write to read-only register ... [ Upstream commit 90c6cb4a35 ] Trying to change Link Status register does not have any effect as this is a read-only register. Trying to overwrite bits for Negotiated Link Width does not make sense. In future proper change of link width can be done via Lane Count Select bits in PCIe Control 0 register. Trying to unconditionally enable ASPM L0s via ASPM Control bits in Link Control register is wrong. There should be at least some detection if endpoint supports L0s as isn't mandatory. Moreover ASPM Control bits in Link Control register are controlled by pcie/aspm.c code which sets it according to system ASPM settings, immediately after aardvark driver probes. So setting these bits by aardvark driver has no long running effect. Remove code which touches ASPM L0s bits from this driver and let kernel's ASPM implementation to set ASPM state properly. Some users are reporting issues that this code is problematic for some Intel wifi cards and removing it fixes them, see e.g.: https://bugzilla.kernel.org/show_bug.cgi?id=196339 If problems with Intel wifi cards occur even after this commit, then pcie/aspm.c code could be modified / hooked to not enable ASPM L0s state for affected problematic cards. Link: https://lore.kernel.org/r/20200430080625.26070-3-pali@kernel.org Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com> Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-06-25 15:32:49 +02:00
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accessibility
acpi	ACPI: GED: use correct trigger type field in _Exx / _Lxx handling	2020-06-22 09:05:09 +02:00
amba
android	binder: take read mode of mmap_sem in binder_alloc_free_page()	2020-05-02 17:25:48 +02:00
ata	libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set	2020-04-17 10:48:52 +02:00
atm	fore200e: Fix incorrect checks of NULL pointer dereference	2020-02-24 08:34:42 +01:00
auxdisplay
base	x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation	2020-06-10 21:35:01 +02:00
bcma	bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA	2020-01-27 14:51:09 +01:00
block	null_blk: return error for invalid zone size	2020-06-07 13:17:56 +02:00
bluetooth	Bluetooth: hci_bcm: fix freeing not-requested IRQ	2020-06-22 09:05:26 +02:00
bus	bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads	2020-04-17 10:48:37 +02:00
cdrom	cdrom: respect device capabilities during opening action	2020-01-04 19:13:12 +01:00
char	pci:ipmi: Move IPMI PCI class id defines to pci_ids.h	2020-06-22 09:05:23 +02:00
clk	clk: samsung: Mark top ISP and CAM clocks on Exynos542x as critical	2020-06-25 15:32:49 +02:00
clocksource	clocksource: dw_apb_timer_of: Fix missing clockevent timers	2020-06-22 09:05:11 +02:00
connector
cpufreq	cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once	2020-05-20 08:18:40 +02:00
cpuidle	cpuidle: Fix three reference count leaks	2020-06-22 09:05:20 +02:00
crypto	crypto: stm32/crc32 - fix multi-instance	2020-06-22 09:05:18 +02:00
dax
dca
devfreq	Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs"	2020-03-05 16:42:18 +01:00
dio
dma	PCI: Move Rohm Vendor ID to generic list	2020-06-22 09:05:23 +02:00
dma-buf
edac	EDAC/amd64: Set grain per DIMM	2020-03-11 14:14:45 +01:00
eisa
extcon	extcon: axp288: Add wakeup support	2020-04-13 10:45:03 +02:00
firewire	net: add annotations on hh->hh_len lockless accesses	2020-01-09 10:19:09 +01:00
firmware	efi/libstub/x86: Work around LLVM ELF quirk build regression	2020-06-22 09:05:10 +02:00
fmc
fpga
fsi	fsi: sbefifo: Don't fail operations when in SBE IPL state	2020-01-27 14:51:00 +01:00
gnss	gnss: sirf: fix error return code in sirf_probe()	2020-06-22 09:05:28 +02:00
gpio	PCI: Move Rohm Vendor ID to generic list	2020-06-22 09:05:23 +02:00
gpu	drm: bridge: adv7511: Extend list of audio sample rates	2020-06-22 09:05:09 +02:00
hid	HID: i2c-hid: add Schneider SCL142ALM to descriptor override	2020-06-07 13:17:53 +02:00
hsi
hv	x86/Hyper-V: Report crash data in die() when panic_on_oops is set	2020-04-23 10:30:17 +02:00
hwmon	hwmon/k10temp, x86/amd_nb: Consolidate shared device IDs	2020-06-22 09:05:23 +02:00
hwspinlock
hwtracing	intel_th: pci: Add Elkhart Lake CPU support	2020-03-25 08:06:11 +01:00
i2c	i2c: pxa: clear all master action bits in i2c_pxa_stop_message()	2020-06-25 15:32:49 +02:00
ide	ide: serverworks: potential overflow in svwks_set_pio_mode()	2020-02-24 08:34:49 +01:00
idle
iio	iio: bmp280: fix compensation of humidity	2020-06-25 15:32:49 +02:00
infiniband	RDMA/uverbs: Make the event_queue fds return POLLERR when disassociated	2020-06-22 09:05:00 +02:00
input	Input: synaptics - add a second working PNP_ID for Lenovo T470s	2020-06-22 09:05:00 +02:00
iommu	iommu: Fix reference count leak in iommu_group_alloc.	2020-06-03 08:19:41 +02:00
ipack	ipack: tpci200: fix error return code in tpci200_register()	2020-05-27 17:37:43 +02:00
irqchip	irqchip/mbigen: Free msi_desc on device teardown	2020-04-23 10:30:13 +02:00
isdn	PCI: add USR vendor id and use it in r8169 and w6692 driver	2020-06-22 09:05:23 +02:00
leds	leds: pca963x: Fix open-drain initialization	2020-02-24 08:34:35 +01:00
lightnvm	lightnvm: pblk: fix lock order in pblk_rb_tear_down_check	2020-01-27 14:50:45 +01:00
macintosh	drivers/macintosh: Fix memleak in windfarm_pm112 driver	2020-06-22 09:05:29 +02:00
mailbox	mailbox: qcom-apcs: fix max_register value	2020-01-27 14:51:14 +01:00
mcb
md	dm mpath: switch paths in dm_blk_ioctl() code path	2020-06-25 15:32:49 +02:00
media	media: ov5640: fix use of destroyed mutex	2020-06-22 09:05:27 +02:00
memory	memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20	2020-01-27 14:50:13 +01:00
memstick
message	scsi: mptfusion: Fix double fetch bug in ioctl	2020-01-23 08:21:28 +01:00
mfd	mfd: intel-lpss: Use devm_ioremap_uc for MMIO	2020-05-10 10:30:11 +02:00
misc	PCI: Add Synopsys endpoint EDDA Device ID	2020-06-22 09:05:24 +02:00
mmc	mmc: sdhci-esdhc-imx: fix the mask for tuning start point	2020-06-22 09:05:20 +02:00
mtd	mtd: rawnand: pasemi: Fix the probe error path	2020-06-22 09:05:30 +02:00
mux
net	igb: Report speed and duplex as unknown when device is runtime suspended	2020-06-22 09:05:27 +02:00
nfc	NFC: st21nfca: add missed kfree_skb() in an error path	2020-06-10 21:34:59 +02:00
ntb	ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()	2020-01-27 14:50:55 +01:00
nubus
nvdimm	libnvdimm: Fix endian conversion issues	2020-06-07 13:17:53 +02:00
nvme	nvme: refine the Qemu Identify CNS quirk	2020-06-22 09:05:16 +02:00
nvmem	nvmem: qfprom: remove incorrect write support	2020-06-10 21:35:00 +02:00
of	of: overlay: kmemleak in dup_and_fixup_symbol_prop()	2020-04-23 10:30:14 +02:00
opp	OPP: Fix missing debugfs supply directory for OPPs	2020-01-27 14:50:04 +01:00
oprofile
parisc
parport
pci	PCI: aardvark: Don't blindly enable ASPM L0s and don't write to read-only register	2020-06-25 15:32:49 +02:00
pcmcia
perf	drivers/perf: hisi: Fix typo in events attribute array	2020-06-22 09:05:14 +02:00
phy	phy: mapphone-mdm6600: Fix write timeouts with shorter GPIO toggle interval	2020-03-11 14:15:10 +01:00
pinctrl	pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOs	2020-06-22 09:05:27 +02:00
platform	platform/x86: intel-vbtn: Only blacklist SW_TABLET_MODE on the 9 / "Laptop" chasis-type	2020-06-22 09:05:20 +02:00
pnp
power	power: supply: bq24257_charger: Replace depends on REGMAP_I2C with select	2020-06-25 15:32:47 +02:00
powercap
pps
ps3
ptp	ptp: free ptp device pin descriptors properly	2020-01-23 08:21:35 +01:00
pwm	pwm: bcm2835: Dynamically allocate base	2020-04-29 16:31:14 +02:00
rapidio	rapidio: fix an error in get_user_pages_fast() error handling	2020-05-27 17:37:43 +02:00
ras
regulator	regulator: rk808: Lower log level on optional GPIOs being not available	2020-02-24 08:34:40 +01:00
remoteproc	remoteproc: Fix IDR initialisation in rproc_alloc()	2020-06-25 15:32:47 +02:00
reset	reset: uniphier: Add SCSSI reset control for each channel	2020-02-24 08:34:44 +01:00
rpmsg	rpmsg: glink: Remove chunk size word align warning	2020-04-13 10:45:16 +02:00
rtc	rtc: 88pm860x: fix possible race condition	2020-04-23 10:30:18 +02:00
s390	s390/cio: avoid duplicated 'ADD' uevents	2020-04-29 16:31:13 +02:00
sbus
scsi	scsi: qla2xxx: Fix issue with adapter's stopping state	2020-06-25 15:32:48 +02:00
sfi
sh
siox
slimbus
sn
soc	soc: imx: gpc: fix power up sequencing	2020-04-23 10:30:17 +02:00
soundwire
spi	PCI: Move Rohm Vendor ID to generic list	2020-06-22 09:05:23 +02:00
spmi
ssb
staging	staging: greybus: sdio: Respect the cmd->busy_timeout from the mmc core	2020-06-22 09:05:19 +02:00
target	scsi: target/iblock: fix WRITE SAME zeroing	2020-05-06 08:13:31 +02:00
tc
tee	tee: optee: Fix compilation issue with nommu	2020-02-05 14:43:50 +00:00
thermal	thermal: brcmstb_thermal: Do not use DT coefficients	2020-03-05 16:42:22 +01:00
thunderbolt	thunderbolt: Drop duplicated get_switch_at_route()	2020-05-27 17:37:40 +02:00
tty	serial: 8250: Fix max baud limit in generic 8250 port	2020-06-25 15:32:49 +02:00
uio	uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()	2020-02-24 08:34:37 +01:00
usb	usblp: poison URBs upon disconnect	2020-06-25 15:32:49 +02:00
uwb
vfio	vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()	2020-05-06 08:13:31 +02:00
vhost	vhost/vsock: fix packet delivery order to monitoring devices	2020-05-27 17:37:32 +02:00
video	backlight: lp855x: Ensure regulators are disabled on probe failure	2020-06-25 15:32:48 +02:00
virt
virtio	virtio_balloon: prevent pfn array overflow	2020-02-24 08:34:54 +01:00
visorbus	visorbus: fix uninitialized variable access	2020-02-24 08:34:47 +01:00
vlynq
vme	vme: bridges: reduce stack usage	2020-02-24 08:34:47 +01:00
w1	w1: omap-hdq: cleanup to add missing newline for some dev_dbg	2020-06-22 09:05:30 +02:00
watchdog	watchdog: reset last_hw_keepalive time at start	2020-04-29 16:31:09 +02:00
xen	xen/pvcalls-back: test for errors when calling backend_connect()	2020-06-22 09:05:09 +02:00
zorro
Kconfig
Makefile