The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
Possible dependencies:
152d394842bb ("drm/msm/hdmi: fix IRQ lifetime") 088604d37e23 ("drm/msm/hdmi: Remove spurious IRQF_ONESHOT flag")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 152d394842bb564148e68b92486a87db0bf54859 Mon Sep 17 00:00:00 2001 From: Johan Hovold johan+linaro@kernel.org Date: Tue, 13 Sep 2022 10:53:18 +0200 Subject: [PATCH] drm/msm/hdmi: fix IRQ lifetime
Device-managed resources allocated post component bind must be tied to the lifetime of the aggregate DRM device or they will not necessarily be released when binding of the aggregate device is deferred.
This is specifically true for the HDMI IRQ, which will otherwise remain requested so that the next bind attempt fails when requesting the IRQ a second time.
Fix this by tying the device-managed lifetime of the HDMI IRQ to the DRM device so that it is released when bind fails.
Fixes: 067fef372c73 ("drm/msm/hdmi: refactor bind/init") Cc: stable@vger.kernel.org # 3.19 Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Johan Hovold johan+linaro@kernel.org Tested-by: Kuogee Hsieh quic_khsieh@quicinc.com Reviewed-by: Kuogee Hsieh quic_khsieh@quicinc.com Patchwork: https://patchwork.freedesktop.org/patch/502666/ Link: https://lore.kernel.org/r/20220913085320.8577-9-johan+linaro@kernel.org Signed-off-by: Abhinav Kumar quic_abhinavk@quicinc.com
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c index a0ed6aa8e4e1..f28fb21e3891 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c @@ -344,7 +344,7 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi, goto fail; }
- ret = devm_request_irq(&pdev->dev, hdmi->irq, + ret = devm_request_irq(dev->dev, hdmi->irq, msm_hdmi_irq, IRQF_TRIGGER_HIGH, "hdmi_isr", hdmi); if (ret < 0) {