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authorSuzuki K Poulose <suzuki.poulose@arm.com>2018-01-02 11:25:29 +0000
committerWill Deacon <will.deacon@arm.com>2018-01-02 16:43:12 +0000
commitc08ec7da75f393c0dbaba9455f4f6b2a5e709355 (patch)
treedce577d01dcb444c846bcb70904f55c723e43aaa /drivers/irqchip
parent29198e3844caaaacb0e21eff634c5f1cfd7f89be (diff)
irqchip: gic-v3: Use of_cpu_node_to_id helper
Use the new generic helper of_cpu_node_to_id() instead of using our own version to map a device node to logical CPU number. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-gic-v3.c29
1 files changed, 2 insertions, 27 deletions
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index b56c3e23f0af..9a7a15049903 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -1070,31 +1070,6 @@ static int __init gic_validate_dist_version(void __iomem *dist_base)
return 0;
}
-static int get_cpu_number(struct device_node *dn)
-{
- const __be32 *cell;
- u64 hwid;
- int cpu;
-
- cell = of_get_property(dn, "reg", NULL);
- if (!cell)
- return -1;
-
- hwid = of_read_number(cell, of_n_addr_cells(dn));
-
- /*
- * Non affinity bits must be set to 0 in the DT
- */
- if (hwid & ~MPIDR_HWID_BITMASK)
- return -1;
-
- for_each_possible_cpu(cpu)
- if (cpu_logical_map(cpu) == hwid)
- return cpu;
-
- return -1;
-}
-
/* Create all possible partitions at boot time */
static void __init gic_populate_ppi_partitions(struct device_node *gic_node)
{
@@ -1145,8 +1120,8 @@ static void __init gic_populate_ppi_partitions(struct device_node *gic_node)
if (WARN_ON(!cpu_node))
continue;
- cpu = get_cpu_number(cpu_node);
- if (WARN_ON(cpu == -1))
+ cpu = of_cpu_node_to_id(cpu_node);
+ if (WARN_ON(cpu < 0))
continue;
pr_cont("%pOF[%d] ", cpu_node, cpu);

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