]> Git Repo - linux.git/commitdiff
arm64: dts: qcom: sm8650: Fix the msi-map entries
authorManivannan Sadhasivam <[email protected]>
Mon, 18 Mar 2024 07:19:05 +0000 (12:49 +0530)
committerBjorn Andersson <[email protected]>
Fri, 12 Apr 2024 17:21:47 +0000 (12:21 -0500)
While adding the GIC ITS MSI support, it was found that the msi-map entries
needed to be swapped to receive MSIs from the endpoint.

But later it was identified that the swapping was needed due to a bug in
the Qualcomm PCIe controller driver. And since the bug is now fixed with
commit bf79e33cdd89 ("PCI: qcom: Enable BDF to SID translation properly"),
let's fix the msi-map entries also to reflect the actual mapping in the
hardware.

Fixes: a33a532b3b1e ("arm64: dts: qcom: sm8650: Use GIC-ITS for PCIe0 and PCIe1")
Signed-off-by: Manivannan Sadhasivam <[email protected]>
Acked-by: Neil Armstrong <[email protected]>
Tested-by: Neil Armstrong <[email protected]> # on SM8650-QRD
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
arch/arm64/boot/dts/qcom/sm8650.dtsi

index ba72d8f3842073fd481926009ce37075894dc8c8..eb117866e59ff861bf8a41827a44429e172d6010 100644 (file)
                        interrupt-map-mask = <0 0 0 0x7>;
                        #interrupt-cells = <1>;
 
-                       /* Entries are reversed due to the unusual ITS DeviceID encoding */
-                       msi-map = <0x0 &gic_its 0x1401 0x1>,
-                                 <0x100 &gic_its 0x1400 0x1>;
+                       msi-map = <0x0 &gic_its 0x1400 0x1>,
+                                 <0x100 &gic_its 0x1401 0x1>;
                        msi-map-mask = <0xff00>;
 
                        linux,pci-domain = <0>;
                        interrupt-map-mask = <0 0 0 0x7>;
                        #interrupt-cells = <1>;
 
-                       /* Entries are reversed due to the unusual ITS DeviceID encoding */
-                       msi-map = <0x0 &gic_its 0x1481 0x1>,
-                                 <0x100 &gic_its 0x1480 0x1>;
+                       msi-map = <0x0 &gic_its 0x1480 0x1>,
+                                 <0x100 &gic_its 0x1481 0x1>;
                        msi-map-mask = <0xff00>;
 
                        linux,pci-domain = <1>;
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