summaryrefslogtreecommitdiff
path: root/drivers/pci/host/pcie-altera-msi.c
diff options
context:
space:
mode:
authorShawn Lin <shawn.lin@rock-chips.com>2016-10-04 20:20:22 +0300
committerBjorn Helgaas <bhelgaas@google.com>2016-10-04 20:20:22 +0300
commitca1989084054e64da25662e1f974f77312083eb3 (patch)
tree51d762fb3a580ab10cc70b8deb9e0ab9c2756ebc /drivers/pci/host/pcie-altera-msi.c
parent58c6990c5ee772c2551193f053e51a52b9984b49 (diff)
downloadlinux-ca1989084054e64da25662e1f974f77312083eb3.tar.xz
PCI: rockchip: Fix wrong transmitted FTS count
If the expected number of FTS aren't received by RC when exiting from L0s, the LTSSM will fall into recover state, which means it will need to send TS for retraining which makes the latency of exiting from L0s a little longer than expected. This issue is caused by an incorrect reset value of FTS count on PLC1 register (offset 0x4). The expected value for Gen1/2 should be more than 240 and we may leave a little margin here. Fix this before starting Gen1 training which will make TS1 contain the correct FTS count. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/host/pcie-altera-msi.c')
0 files changed, 0 insertions, 0 deletions