[PATCH] irqchip: gic-v3: fix unmet dependency on ARM_PSCI_FW

[PATCH] irqchip: gic-v3: fix unmet dependency on ARM_PSCI_FW

[Julian Braha]

ARM_GIC_V3 selects HAVE_ARM_SMCCC_DISCOVERY without ensuring its
dependency, ARM_PSCI_FW is met. However, ARM_PSCI_FW should be
selected by the system type, so ARM_GIC_V3 should depend on ARM_PSCI_FW.

Additionally, the systems that select ARM_GIC_V3 (ARCH_BRCMSTB and
SOC_IMX8M) need to select its dependency, ARM_PSCI_FW, too.

This unmet dependency was found by kconfirm, a static analysis tool for
Kconfig.

Fixes: 35727af2b15d ("irqchip/gicv3: Workaround for NVIDIA erratum T241-FABRIC-4")
Signed-off-by: Julian Braha <julianbraha@gmail.com>
---
 arch/arm/mach-bcm/Kconfig | 1 +
 drivers/irqchip/Kconfig   | 1 +
 drivers/soc/imx/Kconfig   | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 24bc6e18d806..ff7c161df1f1 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -184,6 +184,7 @@ config ARCH_BRCMSTB
 	depends on ARCH_MULTI_V7
 	select ARCH_HAS_RESET_CONTROLLER
 	select ARM_AMBA
+	select ARM_PSCI_FW
 	select ARM_GIC
 	select ARM_GIC_V3
 	select ARM_ERRATA_798181 if SMP
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 20b77fbc51ee..726804295545 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -35,6 +35,7 @@ config GIC_NON_BANKED
 
 config ARM_GIC_V3
 	bool
+	depends on ARM_PSCI_FW
 	select IRQ_DOMAIN_HIERARCHY
 	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
 	select HAVE_ARM_SMCCC_DISCOVERY
diff --git a/drivers/soc/imx/Kconfig b/drivers/soc/imx/Kconfig
index 2a90ddd20104..9f0be8b66c4f 100644
--- a/drivers/soc/imx/Kconfig
+++ b/drivers/soc/imx/Kconfig
@@ -6,6 +6,7 @@ config SOC_IMX8M
 	depends on ARCH_MXC || COMPILE_TEST
 	default ARCH_MXC && ARM64
 	select SOC_BUS
+	select ARM_PSCI_FW if ARCH_MXC && ARCH_MULTI_V7
 	select ARM_GIC_V3 if ARCH_MXC && ARCH_MULTI_V7
 	help
 	  If you say yes here you get support for the NXP i.MX8M family
-- 
2.55.0