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[0/2] PCI: cadence: Set LTSSM Detect.Quiet state delay.

Message ID 20210309073142.13219-1-nadeem@cadence.com (mailing list archive)
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Series PCI: cadence: Set LTSSM Detect.Quiet state delay. | expand

Message

Athani Nadeem Ladkhan March 9, 2021, 7:31 a.m. UTC 
This patch includes a set of two patches.
First patch for adding a new property detect-quiet-min-delay in yaml file.
Second patch programs the delay value in host pcie driver.

The parameter detect-quiet-min-delay can be used to program the minimum
time that LTSSM waits on entering Detect.Quiet state.
00 : 0us minimum wait time in Detect.Quiet state.
01 : 100us minimum wait time in Detect.Quiet state.
10 : 1000us minimum wait time in Detect.Quiet state.
11 : 2000us minimum wait time in Detect.Quiet state.

Nadeem Athani (2):
  dt-bindings:pci: Set LTSSM Detect.Quiet state delay.
  PCI: cadence: Set LTSSM Detect.Quiet state delay.

 .../bindings/pci/cdns,cdns-pcie-host.yaml          | 13 +++++++++++++
 drivers/pci/controller/cadence/pcie-cadence-host.c | 22 ++++++++++++++++++++++
 drivers/pci/controller/cadence/pcie-cadence.h      | 10 ++++++++++
 3 files changed, 45 insertions(+)