commit c7faa70f4a92f020f9d5df20a4ae4bb80be7a022
author Naseer Ahmed <naseer@codeaurora.org> Thu Oct 04 15:10:30 2012 -0400
committer Iliyan Malchev <malchev@google.com> Thu Oct 04 14:03:41 2012 -0700
tree 1ac5da12694f0739ef7e5ac44761f686a12005a7
parent eac8965bf481a17c6bca291c0864d0eb3c0eac07

hwc: move enable disable ioctls to vsync thread

This patch stabilized the vsync signal.

Bug: 7274951
Change-Id: Ieb6396c67d4dfb20cfde39a63a45ab6742d9ec5b
Signed-off-by: Iliyan Malchev <malchev@google.com>

libhwcomposer/hwc.cpp

diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index 920902e..a03f4cd 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -174,15 +174,8 @@
         case HWC_EVENT_VSYNC:
             if (ctx->vstate.enable == enabled)
                 break;
-            if(ioctl(ctx->dpyAttr[dpy].fd, MSMFB_OVERLAY_VSYNC_CTRL,
-                     &enabled) < 0) {
-                ALOGE("%s: vsync control failed. Dpy=%d, enabled=%d : %s",
-                      __FUNCTION__, dpy, enabled, strerror(errno));
-                ret = -errno;
-            }
             ctx->vstate.enable = !!enabled;
-            if (enabled)
-                pthread_cond_signal(&ctx->vstate.cond);
+            pthread_cond_signal(&ctx->vstate.cond);
             ALOGD_IF (VSYNC_DEBUG, "VSYNC state changed to %s",
                       (enabled)?"ENABLED":"DISABLED");
             break;