diff options
| author | Hsiao Chien Sung <shawn.sung@mediatek.com> | 2023-12-14 13:58:38 +0800 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2023-12-14 14:34:13 +0000 |
| commit | b97fa2f3e19b9bbac934a2cfa9218aa67f12240e (patch) | |
| tree | 3ad1b412f780bbc4f211cb015e2d2008132ab1d7 /drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | |
| parent | 7bacaee4f5d0fdf00b1734c1be67cc415b3822c0 (diff) | |
drm/mediatek: Power on/off devices with function pointers
Different from OVL, OVL adaptor is a pseudo device so we didn't
define it in the device tree, consequently, pm_runtime_resume_and_get()
called by .atomic_enable() powers on no device. For this reason, we
implement a function to power on the RDMAs in OVL adaptor, and the
system will make sure the IOMMUs are powered on as well because of the
device link (iommus) in the RDMA nodes in DTS.
This patch separates power and clock management process, it would be
easier to maintain and add extensions.
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20231214055847.4936-15-shawn.sung@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index 3046c0409353..a9b5a21cde2d 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -398,6 +398,8 @@ static const struct mtk_ddp_comp_funcs ddp_ufoe = { }; static const struct mtk_ddp_comp_funcs ddp_ovl_adaptor = { + .power_on = mtk_ovl_adaptor_power_on, + .power_off = mtk_ovl_adaptor_power_off, .clk_enable = mtk_ovl_adaptor_clk_enable, .clk_disable = mtk_ovl_adaptor_clk_disable, .config = mtk_ovl_adaptor_config, |