samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: Add support for seamless panel operating mode switch

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DSI display may support video mode and command mode both and it may
support transition between these two modes.
This change adds seamless transition between these two modes for DSI
display by avoiding crtc enable/disable and panel power on/off
during modeset.

Change-Id: Id7ddaef7d1f0f7cc7d52283755bad53a246adec6
Signed-off-by: Lei Chen <chenlei@codeaurora.org>
这个提交包含在：
Lei Chen
2019-04-25 17:57:09 +08:00
提交者 Gerrit - the friendly Code Review server
父节点 e6933ff2dc
当前提交 21edecd3b1
共修改 12 个文件，包含 376 行新增和 85 行删除
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36
msm/dsi/dsi_drm.c
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@@ -71,11 +71,18 @@ static void convert_to_dsi_mode(const struct drm_display_mode *drm_mode,
dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_DMS;
if (msm_is_mode_seamless_vrr(drm_mode))
dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_VRR;
if (msm_is_mode_seamless_poms(drm_mode))
dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_POMS;
dsi_mode->timing.h_sync_polarity =
!!(drm_mode->flags & DRM_MODE_FLAG_PHSYNC);
dsi_mode->timing.v_sync_polarity =
!!(drm_mode->flags & DRM_MODE_FLAG_PVSYNC);
if (drm_mode->flags & DRM_MODE_FLAG_VID_MODE_PANEL)
dsi_mode->panel_mode = DSI_OP_VIDEO_MODE;
if (drm_mode->flags & DRM_MODE_FLAG_CMD_MODE_PANEL)
dsi_mode->panel_mode = DSI_OP_CMD_MODE;
}
void dsi_convert_to_drm_mode(const struct dsi_display_mode *dsi_mode,
@@ -113,12 +120,19 @@ void dsi_convert_to_drm_mode(const struct dsi_display_mode *dsi_mode,
drm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_DMS;
if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_VRR)
drm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_VRR;
if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_POMS)
drm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_POMS;
if (dsi_mode->timing.h_sync_polarity)
drm_mode->flags |= DRM_MODE_FLAG_PHSYNC;
if (dsi_mode->timing.v_sync_polarity)
drm_mode->flags |= DRM_MODE_FLAG_PVSYNC;
if (dsi_mode->panel_mode == DSI_OP_VIDEO_MODE)
drm_mode->flags |= DRM_MODE_FLAG_VID_MODE_PANEL;
if (dsi_mode->panel_mode == DSI_OP_CMD_MODE)
drm_mode->flags |= DRM_MODE_FLAG_CMD_MODE_PANEL;
drm_mode_set_name(drm_mode);
}
@@ -233,8 +247,18 @@ static void dsi_bridge_disable(struct drm_bridge *bridge)
}
display = c_bridge->display;
if (display && display->drm_conn)
sde_connector_helper_bridge_disable(display->drm_conn);
if (display && display->drm_conn) {
if (bridge->encoder->crtc->state->adjusted_mode.private_flags &
MSM_MODE_FLAG_SEAMLESS_POMS) {
display->poms_pending = true;
/* Disable ESD thread, during panel mode switch */
sde_connector_schedule_status_work(display->drm_conn,
false);
} else {
display->poms_pending = false;
sde_connector_helper_bridge_disable(display->drm_conn);
}
}
rc = dsi_display_pre_disable(c_bridge->display);
if (rc) {
@@ -363,9 +387,17 @@ static bool dsi_bridge_mode_fixup(struct drm_bridge *bridge,
cur_mode = crtc_state->crtc->mode;
/* No panel mode switch when drm pipeline is changing */
if ((dsi_mode.panel_mode != cur_dsi_mode.panel_mode) &&
(!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR)) &&
(!crtc_state->active_changed ||
display->is_cont_splash_enabled))
dsi_mode.dsi_mode_flags |= DSI_MODE_FLAG_POMS;
/* No DMS/VRR when drm pipeline is changing */
if (!drm_mode_equal(&cur_mode, adjusted_mode) &&
(!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR)) &&
(!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_POMS)) &&
(!crtc_state->active_changed ||
display->is_cont_splash_enabled))
dsi_mode.dsi_mode_flags |= DSI_MODE_FLAG_DMS;