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irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x

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Register ARMADA_370_XP_INT_FABRIC_MASK_OFFS is Armada 370 and XP specific
and on new Armada platforms it has different meaning. It does not configure
Performance Counter Overflow interrupt masking. So do not touch this
register on non-A370/XP platforms (A375, A38x and A39x).

Signed-off-by: Pali Rohár <pali@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 28da06dfd9 ("irqchip: armada-370-xp: Enable the PMU interrupts")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220425113706.29310-1-pali@kernel.org
This commit is contained in:
Pali Rohár 2022-04-25 13:37:05 +02:00 committed by Marc Zyngier
parent 4c5b2be1d0
commit a3d66a7634
1 changed files with 10 additions and 1 deletions
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11
drivers/irqchip/irq-armada-370-xp.c
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@ -327,7 +327,16 @@ static inline int armada_370_xp_msi_init(struct device_node *node,
static void armada_xp_mpic_perf_init(void)
{
unsigned long cpuid = cpu_logical_map(smp_processor_id());
unsigned long cpuid;
/*
* This Performance Counter Overflow interrupt is specific for
* Armada 370 and XP. It is not available on Armada 375, 38x and 39x.
*/
if (!of_machine_is_compatible("marvell,armada-370-xp"))
return;
cpuid = cpu_logical_map(smp_processor_id());
/* Enable Performance Counter Overflow interrupts */
writel(ARMADA_370_XP_INT_CAUSE_PERF(cpuid),