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authorThomas Gleixner2022-02-13 14:16:23 +0100
committerThomas Gleixner2022-02-13 14:16:23 +0100
commit1e34064b60552616b2767d22f2e6f440ced09acb (patch)
tree463e5adfb5550ce20ebfc8081af6688d228d7336 /drivers
parentdd7f5a11ac5a6f733f422dc22b4d145d3260304e (diff)
parent1d4df649cbb4b26d19bea38ecff4b65b10a1bbca (diff)
Merge tag 'irqchip-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier: - Don't register a hotplug notifier on GICv3 systems that advertise LPI support, but have no ITS to make use of it - Add missing DT matching for the thead,c900-plic variant of the SiFive PLIC Link: https://lore.kernel.org/r/20220211110038.1179155-1-maz@kernel.org
Diffstat (limited to 'drivers')
-rw-r--r--drivers/irqchip/irq-gic-v3-its.c3
-rw-r--r--drivers/irqchip/irq-sifive-plic.c1
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 9e93ff2b6375..cd772973114a 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -5517,6 +5517,9 @@ int __init its_lpi_memreserve_init(void)
if (!efi_enabled(EFI_CONFIG_TABLES))
return 0;
+ if (list_empty(&its_nodes))
+ return 0;
+
gic_rdists->cpuhp_memreserve_state = CPUHP_INVALID;
state = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN,
"irqchip/arm/gicv3/memreserve:online",
diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index 259065d271ef..09cc98266d30 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -398,3 +398,4 @@ out_free_priv:
IRQCHIP_DECLARE(sifive_plic, "sifive,plic-1.0.0", plic_init);
IRQCHIP_DECLARE(riscv_plic0, "riscv,plic0", plic_init); /* for legacy systems */
+IRQCHIP_DECLARE(thead_c900_plic, "thead,c900-plic", plic_init); /* for firmware driver */