[PATCH v2] PCI: rcar-gen4: Isolate driver to ARM64

[Marek Vasut]

The driver includes linux/irqchip/arm-gic-v3.h which pulls in headers
which are available only on ARM and ARM64, on other architectures the
headers are not present and the driver fails to build. This driver is
used only on ARM64 hardware, isolate its build only to ARM64 to avoid
build failures on other architectures.

Reported-by: kernel test robot <lkp at intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202607100310.iQw5m9Uo-lkp@intel.com/
Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Cc: "Krzysztof Wilczyński" <kwilczynski at kernel.org>
Cc: Bjorn Helgaas <bhelgaas at google.com>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Conor Dooley <conor+dt at kernel.org>
Cc: Geert Uytterhoeven <geert+renesas at glider.be>
Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
Cc: Lorenzo Pieralisi <lpieralisi at kernel.org>
Cc: Manivannan Sadhasivam <mani at kernel.org>
Cc: Marc Zyngier <maz at kernel.org>
Cc: Rob Herring <robh at kernel.org>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh at renesas.com>
Cc: devicetree at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-doc at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Cc: linux-pci at vger.kernel.org
Cc: linux-renesas-soc at vger.kernel.org
---
V2: This is a rework of PCI: rcar-gen4: Inline GIC_TRANSLATER offset macro
    which isolates the driver build to ARM64 via Kconfig instead:
    https://lore.kernel.org/linux-pci/CAMuHMdVvWE7YZgKvreSn_vJLOVD4eMmn3TCGOyqSXksqjBCwvg@mail.gmail.com/
    https://lore.kernel.org/linux-pci/20260714110041.GA1349622@bhelgaas/
---
 drivers/pci/controller/dwc/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
index 49a7a2c50ca15..3260d916110b2 100644
--- a/drivers/pci/controller/dwc/Kconfig
+++ b/drivers/pci/controller/dwc/Kconfig
@@ -346,7 +346,7 @@ config PCIE_RCAR_GEN4
 
 config PCIE_RCAR_GEN4_HOST
 	tristate "Renesas R-Car Gen4 PCIe controller (host mode)"
-	depends on ARCH_RENESAS || COMPILE_TEST
+	depends on ARM64 && (ARCH_RENESAS || COMPILE_TEST)
 	depends on PCI_MSI
 	select PCIE_DW_HOST
 	select PCIE_RCAR_GEN4
@@ -357,7 +357,7 @@ config PCIE_RCAR_GEN4_HOST
 
 config PCIE_RCAR_GEN4_EP
 	tristate "Renesas R-Car Gen4 PCIe controller (endpoint mode)"
-	depends on ARCH_RENESAS || COMPILE_TEST
+	depends on ARM64 && (ARCH_RENESAS || COMPILE_TEST)
 	depends on PCI_ENDPOINT
 	select PCIE_DW_EP
 	select PCIE_RCAR_GEN4
-- 
2.53.0