drm/msm/adreno: Use IRQF_NO_AUTOEN flag in request_irq()

[ Upstream commit 394679f322649d06fea3c646ba65f5a0887f52c3 ]

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: 4b565ca5a2cb ("drm/msm: Add A6XX device support")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Patchwork: https://patchwork.freedesktop.org/patch/614075/
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 4347a104755a94cd092f628aa78dfe64e6122c6e..8b6fc1b26f049d98ba0321af5fd1d3aebc09cfb6 100644 (file)
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1432,15 +1432,13 @@ static int a6xx_gmu_get_irq(struct a6xx_gmu *gmu, struct platform_device *pdev,
 
        irq = platform_get_irq_byname(pdev, name);
 
-       ret = request_irq(irq, handler, IRQF_TRIGGER_HIGH, name, gmu);
+       ret = request_irq(irq, handler, IRQF_TRIGGER_HIGH | IRQF_NO_AUTOEN, name, gmu);
        if (ret) {
                DRM_DEV_ERROR(&pdev->dev, "Unable to get interrupt %s %d\n",
                              name, ret);
                return ret;
        }
 
-       disable_irq(irq);
-
        return irq;
 }