From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
To: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org
Cc: David Airlie <airlied@linux.ie>, Chun-Kuang Hu <chunkuang.hu@kernel.org>
Subject: [PATCH] drm/mediatek: Use CPU when fail to get cmdq event
Date: Thu, 3 Sep 2020 06:05:42 +0800 [thread overview]
Message-ID: <20200902220542.60-1-chunkuang.hu@kernel.org> (raw)
Even though cmdq client is created successfully, without the cmdq event,
cmdq could not work correctly, so use CPU when fail to get cmdq event.
Fixes: 60fa8c13ab1a ("drm/mediatek: Move gce event property to mutex device node")
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
---
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 3fc5511330b9..4d29568be3f5 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -831,13 +831,19 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
drm_crtc_index(&mtk_crtc->base));
mtk_crtc->cmdq_client = NULL;
}
- ret = of_property_read_u32_index(priv->mutex_node,
- "mediatek,gce-events",
- drm_crtc_index(&mtk_crtc->base),
- &mtk_crtc->cmdq_event);
- if (ret)
- dev_dbg(dev, "mtk_crtc %d failed to get mediatek,gce-events property\n",
- drm_crtc_index(&mtk_crtc->base));
+
+ if (mtk_crtc->cmdq_client) {
+ ret = of_property_read_u32_index(priv->mutex_node,
+ "mediatek,gce-events",
+ drm_crtc_index(&mtk_crtc->base),
+ &mtk_crtc->cmdq_event);
+ if (ret) {
+ dev_dbg(dev, "mtk_crtc %d failed to get mediatek,gce-events property\n",
+ drm_crtc_index(&mtk_crtc->base));
+ cmdq_mbox_destroy(mtk_crtc->cmdq_client);
+ mtk_crtc->cmdq_client = NULL;
+ }
+ }
#endif
return 0;
}
--
2.17.1
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next reply other threads:[~2020-09-02 22:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 22:05 Chun-Kuang Hu [this message]
2020-09-08 23:00 ` [PATCH] drm/mediatek: Use CPU when fail to get cmdq event Chun-Kuang Hu
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