Interrupts are automatically unmasked in panthor_mmu_irq_threaded_handler() when the handler returns. Unmasking prematurely might generate spurious interrupts if the IRQ line is shared.
Changes in v2: - New patch Signed-off-by: Boris Brezillon <boris.brezil...@collabora.com> --- drivers/gpu/drm/panthor/panthor_mmu.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/panthor/panthor_mmu.c index 4ac95a31907d..7a7993016314 100644 --- a/drivers/gpu/drm/panthor/panthor_mmu.c +++ b/drivers/gpu/drm/panthor/panthor_mmu.c @@ -1719,7 +1719,6 @@ static void panthor_mmu_irq_handler(struct panthor_device *ptdev, u32 status) * re-enabled. */ ptdev->mmu->irq.mask = new_int_mask; - gpu_write(ptdev, MMU_INT_MASK, new_int_mask); if (ptdev->mmu->as.slots[as].vm) ptdev->mmu->as.slots[as].vm->unhandled_fault = true; -- 2.49.0