diff options
| author | Yongqiang Niu <yongqiang.niu@mediatek.com> | 2022-01-17 08:05:05 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-01-28 15:30:21 +0100 |
| commit | 5db12f5d843b32733979d6f809bbb6974b42e90e (patch) | |
| tree | 1e4dd8512ffaede62b8258924a1d4324323047f4 /drivers/gpu/drm/mediatek/mtk_disp_rdma.c | |
| parent | 682c3cd8257268a25f46b456e886cc1fe2ad3767 (diff) | |
media: drm/mediatek: Add pm runtime support for ovl and rdma
Prepare for smi cleaning up "mediatek,larb".
Display use the dispsys device to call pm_rumtime_get_sync before.
This patch add pm_runtime_xx with ovl and rdma device whose nodes has
"iommus" property, then display could help pm_runtime_get for smi via
ovl or rdma device.
(Yong: Use pm_runtime_resume_and_get instead of pm_runtime_get_sync)
CC: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Tested-by: Frank Wunderlich <frank-w@public-files.de> # BPI-R2/MT7623
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_disp_rdma.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c index d41a3970b944..662e91d9d45f 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c @@ -9,6 +9,7 @@ #include <linux/of_device.h> #include <linux/of_irq.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/soc/mediatek/mtk-cmdq.h> #include "mtk_disp_drv.h" @@ -327,9 +328,13 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev) platform_set_drvdata(pdev, priv); + pm_runtime_enable(dev); + ret = component_add(dev, &mtk_disp_rdma_component_ops); - if (ret) + if (ret) { + pm_runtime_disable(dev); dev_err(dev, "Failed to add component: %d\n", ret); + } return ret; } @@ -338,6 +343,8 @@ static int mtk_disp_rdma_remove(struct platform_device *pdev) { component_del(&pdev->dev, &mtk_disp_rdma_component_ops); + pm_runtime_disable(&pdev->dev); + return 0; } |