diff options
| author | Marek Vasut <marek.vasut+renesas@mailbox.org> | 2026-09-03 22:50:52 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-09-25 15:49:15 -0500 |
| commit | c687d310b1cf294e9365151db07dfd49e75b40f9 (patch) | |
| tree | f8d7fc393c03b859da65980ffb9b642d1a0d9686 /Documentation | |
| parent | 056fd7eb017d73d9d175b733043edfbeb43569be (diff) | |
dt-bindings: PCI: rcar-gen4-pci-host: Document Application/Local register reset
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/20260925203039.110653-1-marek.vasut+renesas@mailbox.org]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260903205153.283553-1-marek.vasut+renesas@mailbox.org
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml index 9767a52f3904..362c43a1a15d 100644 --- a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml +++ b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml @@ -47,11 +47,14 @@ properties: maxItems: 1 resets: - maxItems: 1 + minItems: 1 + maxItems: 2 reset-names: + minItems: 1 items: - const: pwr + - const: core max-link-speed: maximum: 4 @@ -141,8 +144,8 @@ 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>; #address-cells = <3>; |