From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jianhua Lu Date: Mon, 17 Oct 2022 08:02:58 +0800 Subject: drm: dsi: emit panel turn on/off signal to touchscreen --- drivers/gpu/drm/msm/dsi/dsi_manager.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 896f369fdd53..50d788138192 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -7,6 +7,7 @@ #include "msm_kms.h" #include "dsi.h" +#include "drm/drm_notifier.h" #define DSI_CLOCK_MASTER DSI_0 #define DSI_CLOCK_SLAVE DSI_1 @@ -303,6 +304,7 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge) struct mipi_dsi_host *host = msm_dsi->host; bool is_bonded_dsi = IS_BONDED_DSI(); int ret; + enum drm_notifier_data notifier_data; DBG("id=%d", id); if (!msm_dsi_device_connected(msm_dsi)) @@ -318,6 +320,9 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge) return; } + notifier_data = MI_DRM_BLANK_UNBLANK; + mi_drm_notifier_call_chain(MI_DRM_EVENT_BLANK, ¬ifier_data); + ret = msm_dsi_host_enable(host); if (ret) { pr_err("%s: enable host %d failed, %d\n", __func__, id, ret); @@ -361,12 +366,16 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge) struct mipi_dsi_host *host = msm_dsi->host; bool is_bonded_dsi = IS_BONDED_DSI(); int ret; + enum drm_notifier_data notifier_data; DBG("id=%d", id); if (!msm_dsi_device_connected(msm_dsi)) return; + notifier_data = MI_DRM_BLANK_POWERDOWN; + mi_drm_notifier_call_chain(MI_DRM_EARLY_EVENT_BLANK, ¬ifier_data); + /* * Do nothing with the host if it is slave-DSI in case of bonded DSI. * It is safe to call dsi_mgr_phy_disable() here because a single PHY -- Armbian