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drm/rockchip: vop2: A workaround for PD_ESMART on/off

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Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Change-Id: Ic7a23c62da91b5e996a9c790ea6ff48ca4e0bf2c
This commit is contained in:
Andy Yan
2022-07-05 18:58:03 +08:00
committed by Tao Huang
parent 26e054631c
commit f5502856e3
1 changed files with 38 additions and 1 deletions
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39
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
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@@ -1594,6 +1594,21 @@ static void vop2_power_domain_off_work(struct work_struct *work)
spin_unlock(&pd->lock);
}
static void vop2_power_domain_esmat_off(struct drm_crtc *crtc)
{ struct vop2_video_port *vp = to_vop2_video_port(crtc);
struct vop2 *vop2 = vp->vop2;
struct vop2_power_domain *pd;
pd = vop2_find_pd_by_id(vop2, VOP2_PD_ESMART);
if (vop2_power_domain_status(pd)) {
vop2_power_domain_off(pd);
vop2_cfg_done(crtc);
vop2_wait_power_domain_off(pd);
pd->vp_mask = 0;
pd->ref_count = 0;
}
}
static void vop2_win_enable(struct vop2_win *win)
{
if (!VOP_WIN_GET(win->vop2, win, enable)) {
@@ -1651,7 +1666,19 @@ static void vop2_win_disable(struct vop2_win *win, bool skip_splice_win)
*/
if (!win->parent && (win->feature & WIN_FEATURE_MULTI_AREA))
vop2_win_multi_area_disable(win);
if (win->pd) {
/*
* Don't dynamic turn on/off PD_ESMART.
* There is a design issue for PD_EMSART when attached
* on VP1/2/3, we found it will trigger POST_BUF_EMPTY irq at vp0
* in splice mode.
*
*/
if (win->pd->data->id == VOP2_PD_ESMART && win->splice_mode_right)
return;
vop2_power_domain_put(win->pd);
win->pd->vp_mask &= ~win->vp_mask;
}
@@ -3347,7 +3374,7 @@ static void vop2_initial(struct drm_crtc *crtc)
* before we power down the global PD_VOP.
* So we get this workaround:
* We we found a VP is in standby mode when we want power down a PD is
* If we found a VP is in standby mode when we want power down a PD is
* attached to it, we release the VP from standby mode, than it will
* run a default timing and generate vsync. Than we can power down the
* PD by this vsync. After all this is done, we standby the VP at last.
@@ -3759,6 +3786,16 @@ static void vop2_crtc_atomic_disable(struct drm_crtc *crtc,
}
}
vop2_disable_all_planes_for_crtc(crtc);
/*
* A workaround for PD_ESMART, we can't dynamic
* turn on/off it at runtime, so it can only be
* turn down when the whole VOP_PD off.
* see vop2_power_domain_put at vop2_win_disable
*/
if (vop2->enable_count == 1 && vcstate->splice_mode == true)
vop2_power_domain_esmat_off(crtc);
if (vop2->dscs[vcstate->dsc_id].enabled &&
vop2->dscs[vcstate->dsc_id].attach_vp_id == vp->id &&
vop2->data->nr_dscs && vop2->dscs[vcstate->dsc_id].pd) {