[PATCH 2/6] dt-bindings: PCI: rcar-gen4-pci-ep: Document Application/Local register reset

[Marek Vasut <marek.vasut+renesas@mailbox.org>]

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>
---
Cc: "Krzysztof Wilczyński" <kwilczynski@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Koichiro Den <den@valinux.co.jp>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
 .../devicetree/bindings/pci/rcar-gen4-pci-ep.yaml      | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml
index b23293314a6d0..a983aa015cd1b 100644
--- a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml
@@ -56,11 +56,15 @@ properties:
     maxItems: 1
 
   resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   reset-names:
+    minItems: 1
+    maxItems: 2
     items:
       - const: pwr
+      - const: core
 
   max-link-speed:
     maximum: 4
@@ -109,8 +113,8 @@ 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>;
-- 
2.53.0