| Message ID | 20240912083020.3720233-2-ruanjinjie@huawei.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm: Use IRQF_NO_AUTOEN flag in request_irq() | expand |
Hi Jinjie, On Thu, Sep 12, 2024 at 04:30:16PM +0800, Jinjie Ruan wrote: > 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> I think the commit subject should start with drm/imx/dcss. Not sure if this is worth another patch set just for that. I suppose the commiter could fix it before pushing. Other than that: Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com> Thanks, Laurentiu > --- > v2: > - Update the commit subject. > --- > 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 31267c00782f..af91e45b5d13 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; > } > > -- > 2.34.1 >
diff --git a/drivers/gpu/drm/imx/dcss/dcss-crtc.c b/drivers/gpu/drm/imx/dcss/dcss-crtc.c index 31267c00782f..af91e45b5d13 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; }
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> --- v2: - Update the commit subject. --- drivers/gpu/drm/imx/dcss/dcss-crtc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)