drm: msm: Add support AD4 custom event notifications
SDM845 target supports AD4 feature. User-space client of AD4 driver
needs to be notified of system back-light notifications, suspend/resume
events. Change adds support in sde display driver for notify the events.
Change-Id: Ia2fbae75cc66389145292082c46d3bd16653e941
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_connector.c b/drivers/gpu/drm/msm/sde/sde_connector.c
index 58222f3..905ad93 100644
--- a/drivers/gpu/drm/msm/sde/sde_connector.c
+++ b/drivers/gpu/drm/msm/sde/sde_connector.c
@@ -57,6 +57,7 @@
struct dsi_display *display;
struct sde_connector *c_conn;
int bl_lvl;
+ struct drm_event event;
brightness = bd->props.brightness;
@@ -77,8 +78,13 @@
if (!bl_lvl && brightness)
bl_lvl = 1;
- if (c_conn->ops.set_backlight)
+ if (c_conn->ops.set_backlight) {
+ event.type = DRM_EVENT_SYS_BACKLIGHT;
+ event.length = sizeof(u32);
+ msm_mode_object_event_nofity(&c_conn->base.base,
+ c_conn->base.dev, &event, (u8 *)&brightness);
c_conn->ops.set_backlight(c_conn->display, bl_lvl);
+ }
return 0;
}
@@ -1168,5 +1174,14 @@
int sde_connector_register_custom_event(struct sde_kms *kms,
struct drm_connector *conn_drm, u32 event, bool val)
{
- return -EINVAL;
+ int ret = -EINVAL;
+
+ switch (event) {
+ case DRM_EVENT_SYS_BACKLIGHT:
+ ret = 0;
+ break;
+ default:
+ break;
+ }
+ return ret;
}