linux-kernel - Re: [PATCH v2 3/5] drm/imx/ipuv3: Use IRQF_NO_AUTOEN flag in request

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Message-ID: <13010c194e4674f6bdef84bcf748030a1d46b814.camel@pengutronix.de>
Date: Fri, 20 Sep 2024 16:53:19 +0200
From: Philipp Zabel <p.zabel@...gutronix.de>
To: Jinjie Ruan <ruanjinjie@...wei.com>, laurentiu.palcu@....nxp.com, 
 l.stach@...gutronix.de, maarten.lankhorst@...ux.intel.com,
 mripard@...nel.org,  tzimmermann@...e.de, airlied@...il.com,
 daniel@...ll.ch, shawnguo@...nel.org,  s.hauer@...gutronix.de,
 kernel@...gutronix.de, festevam@...il.com,  robdclark@...il.com,
 sean@...rly.run, konradybcio@...nel.org,  quic_abhinavk@...cinc.com,
 dmitry.baryshkov@...aro.org,  marijn.suijten@...ainline.org,
 thierry.reding@...il.com, mperttunen@...dia.com,  jonathanh@...dia.com,
 agx@...xcpu.org, gregkh@...uxfoundation.org,  jordan@...micpenguin.net,
 dri-devel@...ts.freedesktop.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org, 
 linux-tegra@...r.kernel.org
Subject: Re: [PATCH v2 3/5] drm/imx/ipuv3: Use IRQF_NO_AUTOEN flag in
 request_irq()

On Do, 2024-09-12 at 16:30 +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: 47b1be5c0f4e ("staging: imx/drm: request irq only after adding the crtc")
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>

Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp