From: ck.hu@mediatek.com (CK Hu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] drm/mediatek: set vblank_disable_allowed to true
Date: Thu, 29 Sep 2016 13:36:23 +0800 [thread overview]
Message-ID: <1475127383.18843.4.camel@mtksdaap41> (raw)
In-Reply-To: <1475119789-64619-2-git-send-email-bibby.hsieh@mediatek.com>
Acked-by: CK Hu <ck.hu@mediatek.com>
On Thu, 2016-09-29 at 11:29 +0800, Bibby Hsieh wrote:
> MTK DRM driver didn't set the vblank_disable_allowed to
> true, it cause that the irq_handler is called every
> 16.6 ms (every vblank) when the display didn't be updated.
>
> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
> ---
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index eebb7d8..941ec5f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -200,6 +200,7 @@ static int mtk_drm_kms_init(struct drm_device *drm)
> if (ret < 0)
> goto err_component_unbind;
>
> + drm->vblank_disable_allowed = true;
> drm_kms_helper_poll_init(drm);
> drm_mode_config_reset(drm);
>
next prev parent reply other threads:[~2016-09-29 5:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-29 3:29 [PATCH 0/2] fix issue: vblank interrupts are never disabled Bibby Hsieh
2016-09-29 3:29 ` [PATCH 1/2] drm/mediatek: set vblank_disable_allowed to true Bibby Hsieh
2016-09-29 5:36 ` CK Hu [this message]
2016-09-29 3:29 ` [PATCH 2/2] drm/mediatek: clear IRQ status before enable OVL interrupt Bibby Hsieh
2016-09-29 5:37 ` CK Hu
2016-10-07 10:37 ` [PATCH 0/2] fix issue: vblank interrupts are never disabled Daniel Kurtz
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