github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

dt-bindings: PCI: rcar-gen4-pci-ep: Document Application/Local register reset

Browse Source 
The R-Car Gen4 PCIe controller does contain core reset, which puts
the controller back into well-defined state, but it does also tear
down the PCIe link. This is called Application/Local register reset
in the documentation. Document this reset.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
[bhelgaas: squash maxItems fix from
https://patch.msgid.link/20260925203039.110653-2-marek.vasut+renesas@mailbox.org]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260903205153.283553-2-marek.vasut+renesas@mailbox.org
This commit is contained in:
Marek Vasut 2026-09-03 22:50:53 +02:00 committed by Bjorn Helgaas
parent c687d310b1
commit 26a78bf6d4
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml
View File

@ -56,11 +56,14 @@ properties:
maxItems: 1
resets:
maxItems: 1
minItems: 1
maxItems: 2
reset-names:
minItems: 1
items:
- const: pwr
- const: core
max-link-speed:
maximum: 4
@ -109,8 +112,8 @@ examples:
clocks = <&cpg CPG_MOD 624>, <&pcie0_clkref>;
clock-names = "core", "ref";
power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
resets = <&cpg 624>;
reset-names = "pwr";
resets = <&cpg 624>,<&cpg 1121>;
reset-names = "pwr", "core";
max-link-speed = <4>;
num-lanes = <2>;
max-functions = /bits/ 8 <2>;