Some platforms may not boot if a device driver doesn't
initialize the interconnect path. Mostly it is handled
by the bootloader but we have starting to see cases
where bootloader simply ignores them.
Add the "pcie-mem" & "cpu-pcie" interconnect path as a required
property to the bindings.
Signed-off-by: Krishna chaitanya chundru <quic_krichai@xxxxxxxxxxx>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
index 8111122..e553341 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
@@ -71,6 +71,14 @@ properties:
description: GPIO used as WAKE# output signal
maxItems: 1
+ interconnects:
+ maxItems: 2
+
+ interconnect-names:
+ items:
+ - const: pcie-mem
+ - const: cpu-pcie
+
resets:
maxItems: 1
@@ -98,6 +106,8 @@ required:
- interrupts
- interrupt-names
- reset-gpios
+ - interconnects
+ - interconnect-names
- resets
- reset-names
- power-domains
@@ -167,7 +177,9 @@ examples:
- |
#include <dt-bindings/clock/qcom,gcc-sdx55.h>
#include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interconnect/qcom,sdx55.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+
pcie_ep: pcie-ep@1c00000 {
compatible = "qcom,sdx55-pcie-ep";
reg = <0x01c00000 0x3000>,
@@ -194,6 +206,9 @@ examples:
interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "global", "doorbell";
+ interconnects = <&system_noc MASTER_PCIE &mc_virt SLAVE_EBI_CH0>,
+ <&mem_noc MASTER_AMPSS_M0 &system_noc SLAVE_PCIE_0>;
+ interconnect-names = "pcie-mem", "cpu-pcie";
reset-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
resets = <&gcc GCC_PCIE_BCR>;
--
2.7.4
