Messages in this thread | | | Date | Thu, 26 Nov 2020 12:34:59 +0100 | From | Thierry Reding <> | Subject | Re: [PATCH V4 6/6] PCI: tegra: Disable LTSSM during L2 entry |
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On Mon, Nov 09, 2020 at 10:49:37PM +0530, Vidya Sagar wrote: > PCIe cards like Marvell SATA controller and some of the Samsung NVMe > drives don't support taking the link to L2 state. When the link doesn't > go to L2 state, Tegra194 requires the LTSSM to be disabled to allow PHY > to start the next link up process cleanly during suspend/resume sequence. > Failing to disable LTSSM results in the PCIe link not coming up in the > next resume cycle. > > Signed-off-by: Vidya Sagar <vidyas@nvidia.com> > --- > V4: > * New patch in this series > > drivers/pci/controller/dwc/pcie-tegra194.c | 16 +++++++++------- > 1 file changed, 9 insertions(+), 7 deletions(-)
Tested-by: Thierry Reding <treding@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> [unhandled content-type:application/pgp-signature] | |