From 6ddd3164f656a9af531b7180c64a158b55d12acc Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 27 Aug 2026 10:23:44 +0200 Subject: [PATCH] drm/hibmc: Return IRQ_NONE for unhandled interrupts Let the kernel know if hibmc did not handle an interrupt. Allows the kernel to detect spurious interrupts and maintain diagnostics. Signed-off-by: Thomas Zimmermann Reviewed-by: Yongbang Shi Link: https://patch.msgid.link/20260827082915.61176-2-tzimmermann@suse.de --- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index 4d85c89f3f88..602930964e93 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -49,9 +49,10 @@ static irqreturn_t hibmc_interrupt(int irq, void *arg) writel(HIBMC_RAW_INTERRUPT_VBLANK(1), priv->mmio + HIBMC_RAW_INTERRUPT); drm_handle_vblank(dev, 0); + return IRQ_HANDLED; } - return IRQ_HANDLED; + return IRQ_NONE; } static irqreturn_t hibmc_dp_interrupt(int irq, void *arg) @@ -67,7 +68,7 @@ static irqreturn_t hibmc_dp_interrupt(int irq, void *arg) return IRQ_WAKE_THREAD; } - return IRQ_HANDLED; + return IRQ_NONE; } static int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,