Re: [PATCH v2 15/15] arm64: dts: renesas: r8a779f0: Describe the PCIe AER interrupts

[Marek Vasut]

On 9/28/26 6:52 PM, Koichiro Den wrote:
> The PCIe controllers report Root Port AER notifications through
> intreq_pci0_lperr (SPI 421) and intreq_pci1_lperr (SPI 428),
> respectively, separately from the integrated MSI receiver interrupts.
> Describe these interrupts with the "aer" name so the controller driver
> can use them for Root Port error reporting.
>
> Append the new interrupts to preserve the existing interrupt indices.
>
> Reviewed-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxxxx>
> Signed-off-by: Koichiro Den <den@xxxxxxxxxxxxx>
Please also feel free to add this patch for R-Car V4H (performed cover 
letter tests 2 and 3 on Retronix Sparrow Hawk)

diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi 
b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
index 5284923b6cef7..8342d3c6f9881 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
@@ -801,8 +801,9 @@ pciec0: pcie@e65d0000 {
                        interrupts = <GIC_SPI 449 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 450 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 451 IRQ_TYPE_LEVEL_HIGH>,
-                                    <GIC_SPI 455 IRQ_TYPE_LEVEL_HIGH>;
-                       interrupt-names = "msi", "dma", "sft_ce", "app";
+                                    <GIC_SPI 455 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 454 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "msi", "dma", "sft_ce", "app", 
"aer";
                        clocks = <&cpg CPG_MOD 624>, <&pcie0_clkref>;
                        clock-names = "core", "ref";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
@@ -850,8 +851,9 @@ pciec1: pcie@e65d8000 {
                        interrupts = <GIC_SPI 456 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 457 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 458 IRQ_TYPE_LEVEL_HIGH>,
-                                    <GIC_SPI 462 IRQ_TYPE_LEVEL_HIGH>;
-                       interrupt-names = "msi", "dma", "sft_ce", "app";
+                                    <GIC_SPI 462 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 461 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "msi", "dma", "sft_ce", "app", 
"aer";
                        clocks = <&cpg CPG_MOD 625>, <&pcie1_clkref>;
                        clock-names = "core", "ref";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;

And a matching patch for R-Car V4M (boot tested, but the board has no 
PCIe device plugged into the slot)

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi 
b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
index 5f9223a0f4468..a377aab3c8be0 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
@@ -683,8 +683,9 @@ pciec0: pcie@e65d0000 {
                        interrupts = <GIC_SPI 449 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 450 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 451 IRQ_TYPE_LEVEL_HIGH>,
-                                    <GIC_SPI 455 IRQ_TYPE_LEVEL_HIGH>;
-                       interrupt-names = "msi", "dma", "sft_ce", "app";
+                                    <GIC_SPI 455 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 454 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "msi", "dma", "sft_ce", "app", 
"aer";
                        clocks = <&cpg CPG_MOD 624>, <&pcie0_clkref>;
                        clock-names = "core", "ref";
                        power-domains = <&sysc R8A779H0_PD_A2PCIPHY>;