sdm: add one action to set panel brightness and refresh screen

Add one action to set panel brightness and refresh screen. The
backlight level is cached and sent through display commit IOCTL
to driver, which would take effect along with display commit.

Change-Id: I87483e82b5c13ef25c1da956ac9403162afd031e

1 files changed, 11 insertions, 0 deletions

diff --git a/sdm/libs/core/fb/hw_device.cpp b/sdm/libs/core/fb/hw_device.cpp
index 999265eb..6309c09a 100644
--- a/sdm/libs/core/fb/hw_device.cpp
+++ b/sdm/libs/core/fb/hw_device.cpp
@@ -485,6 +485,10 @@ DisplayError HWDevice::Commit(HWLayers *hw_layers) {
   if (synchronous_commit_) {
     mdp_commit.flags |= MDP_COMMIT_WAIT_FOR_FINISH;
   }
+  if (bl_update_commit && bl_level_update_commit >= 0) {
+    mdp_commit.bl_level = (uint32_t)bl_level_update_commit;
+    mdp_commit.flags |= MDP_COMMIT_UPDATE_BRIGHTNESS;
+  }
   if (Sys::ioctl_(device_fd_, INT(MSMFB_ATOMIC_COMMIT), &mdp_disp_commit_) < 0) {
     if (errno == ESHUTDOWN) {
       DLOGI_IF(kTagDriverConfig, "Driver is processing shutdown sequence");
@@ -539,6 +543,9 @@ DisplayError HWDevice::Commit(HWLayers *hw_layers) {
     synchronous_commit_ = false;
   }
 
+  if (bl_update_commit)
+    bl_update_commit = false;
+
   return kErrorNone;
 }
 
@@ -1180,6 +1187,10 @@ DisplayError HWDevice::SetPanelBrightness(int level) {
   return kErrorNotSupported;
 }
 
+DisplayError HWDevice::CachePanelBrightness(int level) {
+  return kErrorNotSupported;
+}
+
 DisplayError HWDevice::GetHWScanInfo(HWScanInfo *scan_info) {
   return kErrorNotSupported;
 }