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58a3862a10
linux/drivers/pci/pcie
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Yicong Yang 58a3862a10 PCI/ASPM: Clear the correct bits when enabling L1 substates 
In pcie_config_aspm_l1ss(), we cleared the wrong bits when enabling ASPM L1
Substates.  Instead of the L1.x enable bits (PCI_L1SS_CTL1_L1SS_MASK, 0xf), we
cleared the Link Activation Interrupt Enable bit (PCI_L1SS_CAP_L1_PM_SS,
0x10).

Clear the L1.x enable bits before writing the new L1.x configuration.

[bhelgaas: changelog]
Fixes: aeda9adeba ("PCI/ASPM: Configure L1 substate settings")
Link: https://lore.kernel.org/r/1584093227-1292-1-git-send-email-yangyicong@hisilicon.com
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org	# v4.11+
2020-03-18 17:43:14 -05:00
..
aer_inject.c PCI: Fix typos and whitespace errors 2019-07-09 07:24:53 -05:00
aer.c PCI/AER: Initialize aer_fifo 2020-01-23 16:40:03 -06:00
aspm.c PCI/ASPM: Clear the correct bits when enabling L1 substates 2020-03-18 17:43:14 -05:00
bw_notification.c pci-v5.2-changes 2019-05-14 10:30:10 -07:00
dpc.c PCI/DPC: Add "pcie_ports=dpc-native" to allow DPC without AER control 2019-10-25 15:11:43 -05:00
err.c PCI/AER: Factor message prefixes with dev_fmt() 2020-01-23 16:39:53 -06:00
Kconfig Merge branch 'pci/misc' 2019-11-28 08:54:32 -06:00
Makefile PCI/LINK: Add Kconfig option (default off) 2019-05-02 08:34:32 -05:00
pme.c PCI/PME: Replace dev_printk(KERN_DEBUG) with dev_info() 2019-05-09 16:27:29 -05:00
portdrv_core.c PCI/DPC: Add "pcie_ports=dpc-native" to allow DPC without AER control 2019-10-25 15:11:43 -05:00
portdrv_pci.c PCI/DPC: Add "pcie_ports=dpc-native" to allow DPC without AER control 2019-10-25 15:11:43 -05:00
portdrv.h PCI/DPC: Add "pcie_ports=dpc-native" to allow DPC without AER control 2019-10-25 15:11:43 -05:00
ptm.c PCI/PTM: Remove spurious "d" from granularity message 2019-11-21 07:52:32 -06:00