samsung_sm8750/android_kernel_samsung_sm8750-devicetrees
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ARM: dts: msm: Add device_type property for pcie node

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Add device_type property for the pcie devicetree nodes
in sun.

This is needed to make sure that the pcie devicetree node
is associated with the pci bus when ranges property gets
parsed by the of/address.c driver.

And this change is mandatory for pci devicetree nodes with
the introduction of the following change in of/address.c
upstream commit <3d5089c4263d> "of/address: Add support
for 3 address cell bus".

Without this change, BAR address allocation failure will
happen as error logs below as the flags cell in ranges
property in devicetree will be read wrong.
pci-msm 1c00000.qcom,pcie:err 0x0060200000..0x00602fffff -> 0x0060200000.
pci-msm 1c00000.qcom,pcie:err 0x0060300000..0x0063ffffff -> 0x0060300000.
pci-msm 1c00000.qcom,pcie: non-prefetchable memory resource required.
pci 0000:00:00.0: BAR 0: no space for [mem size 0x00001000 64bit].
pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x00001000 64bit].

Change-Id: I8b1591ea83784ffc19c928e1af73117657ac7f15
Signed-off-by: Prudhvi Yarlagadda <quic_pyarlaga@quicinc.com>
This commit is contained in:
Prudhvi Yarlagadda
2023-10-09 18:23:20 -07:00
parent 91593b8c04
commit bc6d0ca2a9
1 changed files with 1 additions and 0 deletions
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1
qcom/sun-pcie.dtsi
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@@ -9,6 +9,7 @@
&soc { &soc {
pcie0: qcom,pcie@1c00000 { pcie0: qcom,pcie@1c00000 {
compatible = "qcom,pci-msm"; compatible = "qcom,pci-msm";
device_type = "pci";
reg = <0x01c00000 0x3000>, reg = <0x01c00000 0x3000>,
<0x01c06000 0x2000>, <0x01c06000 0x2000>,