Thread (47 messages) 47 messages, 4 authors, 2024-07-29

Re: [PATCH v4 02/12] dt-bindings: PCI: brcmstb: Add 7712 SoC description

From: Jim Quinlan <hidden>
Date: 2024-07-23 21:03:44
Also in: linux-devicetree, linux-pci, lkml

On Wed, Jul 17, 2024 at 2:53 AM Krzysztof Kozlowski [off-list ref] wrote:
On 16/07/2024 23:31, Jim Quinlan wrote:
quoted
This adds the description for the 7712 SoC, a Broadcom
STB sibling chip of the RPi 5.  Two new reset controllers
are described.

Signed-off-by: Jim Quinlan <redacted>
---
 .../bindings/pci/brcm,stb-pcie.yaml           | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
index 692f7ed7c98e..90683a0df2c5 100644
--- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
@@ -21,6 +21,7 @@ properties:
           - brcm,bcm7425-pcie # Broadcom 7425 MIPs
           - brcm,bcm7435-pcie # Broadcom 7435 MIPs
           - brcm,bcm7445-pcie # Broadcom 7445 Arm
+          - brcm,bcm7712-pcie # Broadcom STB sibling of Rpi 5

   reg:
     maxItems: 1
@@ -100,12 +101,16 @@ properties:
     items:
       - description: reset for external PCIe PERST# signal # perst
       - description: reset for phy reset calibration       # rescal
+      - description: reset for PCIe/CPU bus bridge         # bridge
+      - description: reset for soft PCIe core reset        # swinit

   reset-names:
     minItems: 1
     items:
       - const: perst
       - const: rescal
+      - const: bridge
+      - const: swinit
This does not match at all what you have in allOf:if:then section.
quoted
 required:
   - compatible
@@ -159,6 +164,27 @@ allOf:
         - resets
         - reset-names

+  - if:
+      properties:
+        compatible:
+          contains:
+            const: brcm,bcm7712-pcie
+    then:
+      properties:
+        resets:
+          minItems: 3
+          maxItems: 3
+
+        reset-names:
+          items:
+            - const: rescal
Look - here it is rescal. Before you said it must be perst.

https://elixir.bootlin.com/linux/v6.8/source/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml#L132
Hello Krzysztof,

The difference between my commits and the above example is that the
above example has no "desc" line(s) to describe the clocks  -- How
would you add this?  Or are you okay with (a) no description or (b)
using a "#comment..." next to the clock's name?

Regards,
Jim Quinlan
Broadcom STB/CM
Best regards,
Krzysztof

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