5.15-stable review patch. If anyone has any objections, please let me know.
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From: Jinjie Ruan ruanjinjie@huawei.com
[ 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-ruanj... [DB: fixed the subject] Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/imx/dcss/dcss-crtc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/imx/dcss/dcss-crtc.c b/drivers/gpu/drm/imx/dcss/dcss-crtc.c index 31267c00782fc..af91e45b5d13b 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-crtc.c +++ b/drivers/gpu/drm/imx/dcss/dcss-crtc.c @@ -206,15 +206,13 @@ 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; }