diff mbox series

[v3,11/13] dt-bindings: PCI: qcom,pcie-sm8450: Add 'global' interrupt

Message ID 20240731-pci-qcom-hotplug-v3-11-a1426afdee3b@linaro.org
State New
Headers show
Series PCI: qcom: Enumerate endpoints based on Link up event in 'global_irq' interrupt | expand

Commit Message

Manivannan Sadhasivam via B4 Relay July 31, 2024, 10:50 a.m. UTC 
From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Qcom PCIe RC controllers are capable of generating 'global' SPI interrupt
to the host CPU. This interrupt can be used by the device driver to
identify events such as PCIe link specific events, safety events, etc...

Hence, document it in the binding along with the existing MSI interrupts.
Though adding a new interrupt will break the ABI, it is required to
accurately describe the hardware.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

Comments

Rob Herring (Arm) Aug. 6, 2024, 4:54 p.m. UTC | #1 
On Wed, Jul 31, 2024 at 04:20:14PM +0530, Manivannan Sadhasivam wrote:
> Qcom PCIe RC controllers are capable of generating 'global' SPI interrupt
> to the host CPU. This interrupt can be used by the device driver to
> identify events such as PCIe link specific events, safety events, etc...
> 
> Hence, document it in the binding along with the existing MSI interrupts.
> Though adding a new interrupt will break the ABI, it is required to
> accurately describe the hardware.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)

Patch 10 should be combined with this. It's one logical change.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml
index d8c0afaa4b19..46bd59eefadb 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml
@@ -55,8 +55,8 @@  properties:
       - const: aggre1 # Aggre NoC PCIe1 AXI clock
 
   interrupts:
-    minItems: 8
-    maxItems: 8
+    minItems: 9
+    maxItems: 9
 
   interrupt-names:
     items:
@@ -68,6 +68,7 @@  properties:
       - const: msi5
       - const: msi6
       - const: msi7
+      - const: global
 
   operating-points-v2: true
   opp-table:
@@ -149,9 +150,10 @@  examples:
                          <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
                          <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
                          <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
-                         <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+                         <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
             interrupt-names = "msi0", "msi1", "msi2", "msi3",
-                              "msi4", "msi5", "msi6", "msi7";
+                              "msi4", "msi5", "msi6", "msi7", "global";
             #interrupt-cells = <1>;
             interrupt-map-mask = <0 0 0 0x7>;
             interrupt-map = <0 0 0 1 &intc 0 0 0 149 IRQ_TYPE_LEVEL_HIGH>, /* int_a */