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drm/imx/dcss: Use IRQF_NO_AUTOEN flag in request_irq()

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[ Upstream commit 1af01e14db7e0b45ae502d822776a58c86688763 ]

disable_irq() after request_irq() still has a time gap in which
interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will
disable IRQ auto-enable when request IRQ.

Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240912083020.3720233-2-ruanjinjie@huawei.com
[DB: fixed the subject]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jinjie Ruan 2024-09-12 16:30:16 +08:00 • committed by Ksawlii
parent 472605d290
commit df19926700
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/imx/dcss/dcss-crtc.c
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@ -201,15 +201,13 @@ int dcss_crtc_init(struct dcss_crtc *crtc, struct drm_device *drm)
if (crtc->irq < 0)
return crtc->irq;
ret = request_irq(crtc->irq, dcss_crtc_irq_handler,
0, "dcss_drm", crtc);
ret = request_irq(crtc->irq, dcss_crtc_irq_handler, IRQF_NO_AUTOEN,
"dcss_drm", crtc);
if (ret) {
dev_err(dcss->dev, "irq request failed with %d.\n", ret);
return ret;
}
disable_irq(crtc->irq);
return 0;
}