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irqchip/exynos-combiner: Remove useless spinlock

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irq_controller_lock doesn't protect anything, it is a leftover from early
development or copy/paste. Remove it completely.

Fixes: 96031b31a4 ("irqchip/exynos-combiner: Switch to raw_spinlock")
Suggested-by: Thomas Gleixner <tglx@kernel.org>
Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/all/20260521090453.bbUZ00tS@linutronix.de
Link: https://patch.msgid.link/20260522061012.2687122-1-m.szyprowski@samsung.com/
This commit is contained in:
Marek Szyprowski
2026-05-22 08:10:12 +02:00
committed by Thomas Gleixner
parent 8d721c08dd
commit 6fe4500746
1 changed files with 0 additions and 4 deletions
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4
drivers/irqchip/exynos-combiner.c
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@@ -24,8 +24,6 @@
#define IRQ_IN_COMBINER 8
static DEFINE_RAW_SPINLOCK(irq_controller_lock);
struct combiner_chip_data {
unsigned int hwirq_offset;
unsigned int irq_mask;
@@ -72,9 +70,7 @@ static void combiner_handle_cascade_irq(struct irq_desc *desc)
chained_irq_enter(chip, desc);
raw_spin_lock(&irq_controller_lock);
status = readl_relaxed(chip_data->base + COMBINER_INT_STATUS);
raw_spin_unlock(&irq_controller_lock);
status &= chip_data->irq_mask;
if (status == 0)