linux-kernel - [PATCH v2 01/12] dt-bindings: PCI: Add Broadcom STB 7712 SOC, update maintainer

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Message-Id: <20240703180300.42959-2-james.quinlan@broadcom.com>
Date: Wed,  3 Jul 2024 14:02:45 -0400
From: Jim Quinlan <james.quinlan@...adcom.com>
To: linux-pci@...r.kernel.org,
	Nicolas Saenz Julienne <nsaenz@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Cyril Brulebois <kibi@...ian.org>,
	Stanimir Varbanov <svarbanov@...e.de>,
	bcm-kernel-feedback-list@...adcom.com,
	jim2101024@...il.com,
	james.quinlan@...adcom.com
Cc: Florian Fainelli <florian.fainelli@...adcom.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-rpi-kernel@...ts.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE),
	linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 01/12] dt-bindings: PCI: Add Broadcom STB 7712 SOC, update maintainer

- Update maintainer; Nicolas hasn't been active and it
  makes more sense to have a Broadcom maintainer
- Add a driver compatible string for the new STB SOC 7712
- Add two new resets for the 7712: "bridge", for the
  the bridge between the PCIe core and the memory bus;
  "swinit", the PCIe core reset.
- Order the compatible strings alphabetically
- Restructure the reset controllers so that the definitions
  appear first before any rules that govern them.

Signed-off-by: Jim Quinlan <james.quinlan@...adcom.com>
---
 .../bindings/pci/brcm,stb-pcie.yaml           | 44 +++++++++++++++----
 1 file changed, 36 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
index 11f8ea33240c..a070f35d28d7 100644
--- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Brcmstb PCIe Host Controller
 
 maintainers:
-  - Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
+  - Jim Quinlan <james.quinlan@...adcom.com>
 
 properties:
   compatible:
@@ -16,11 +16,12 @@ properties:
           - brcm,bcm2711-pcie # The Raspberry Pi 4
           - brcm,bcm4908-pcie
           - brcm,bcm7211-pcie # Broadcom STB version of RPi4
-          - brcm,bcm7278-pcie # Broadcom 7278 Arm
           - brcm,bcm7216-pcie # Broadcom 7216 Arm
-          - brcm,bcm7445-pcie # Broadcom 7445 Arm
+          - brcm,bcm7278-pcie # Broadcom 7278 Arm
           - brcm,bcm7425-pcie # Broadcom 7425 MIPs
           - brcm,bcm7435-pcie # Broadcom 7435 MIPs
+          - brcm,bcm7445-pcie # Broadcom 7445 Arm
+          - brcm,bcm7712-pcie # STB sibling SOC of Raspberry Pi 5
 
   reg:
     maxItems: 1
@@ -95,6 +96,20 @@ properties:
       minItems: 1
       maxItems: 3
 
+  resets:
+    items:
+      - description: reset for phy calibration
+      - description: reset for PCIe/CPU bus bridge
+      - description: reset for soft PCIe core reset
+      - description: reset for PERST# PCIe signal
+
+  reset-names:
+    items:
+      - const: rescal
+      - const: bridge
+      - const: swinit
+      - const: perst
+
 required:
   - compatible
   - reg
@@ -118,13 +133,10 @@ allOf:
     then:
       properties:
         resets:
-          items:
-            - description: reset controller handling the PERST# signal
-
+          minItems: 1
         reset-names:
           items:
             - const: perst
-
       required:
         - resets
         - reset-names
@@ -136,12 +148,28 @@ allOf:
     then:
       properties:
         resets:
+          minItems: 1
+        reset-names:
           items:
-            - description: phandle pointing to the RESCAL reset controller
+            - const: rescal
+      required:
+        - resets
+        - reset-names
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: brcm,bcm7712-pcie
+    then:
+      properties:
+        resets:
+          minItems: 3
 
         reset-names:
           items:
             - const: rescal
+            - const: bridge
+            - const: swinit
 
       required:
         - resets
-- 
2.17.1


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