ozone: drm: Restore cursor in CrtcController::Modeset

ozone: drm: Restore cursor in CrtcController::Modeset

This re-sets the cursor after every mode change. It will ensure we
restore the cursor after returning from frecon.

BUG=471097
TEST=Ctrl-Alt-Forward in developer mode to activate frecon, then
  Ctrl-Alt-Back to return to chrome. Cursor is shown.

Committed: https://crrev.com/ee3db43d851c57a6f93bced7178797c0d73f8c84
Cr-Commit-Position: refs/heads/master@{#325243}

[spang, 2015-04-15 00:37:21]

spang@chromium.org changed reviewers:
+ alexst@chromium.org, dnicoara@chromium.org

[alexst (slow to review), 2015-04-15 00:40:04]

lgtm

[dnicoara, 2015-04-15 13:32:47]

The CQ bit was checked by dnicoara@chromium.org

[dnicoara, 2015-04-15 13:32:48]

lgtm

[commit-bot: I haz the power, 2015-04-15 13:32:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1085123002/1

[spang, 2015-04-15 14:30:57]

The CQ bit was unchecked by spang@chromium.org

[spang, 2015-04-15 14:49:09]

The CQ bit was checked by spang@chromium.org

[spang, 2015-04-15 14:49:09]

The patchset sent to the CQ was uploaded after l-g-t-m from alexst@chromium.org,
dnicoara@chromium.org
Link to the patchset: https://codereview.chromium.org/1085123002/#ps20001
(title: "fixup test")

[commit-bot: I haz the power, 2015-04-15 14:49:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1085123002/20001

[spang, 2015-04-15 14:52:57]

The CQ bit was unchecked by spang@chromium.org

[spang, 2015-04-15 14:53:40]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2015-04-15 14:54:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1085123002/20001

[spang, 2015-04-15 15:10:08]

The CQ bit was unchecked by spang@chromium.org

[spang, 2015-04-15 15:10:09]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2015-04-15 15:10:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1085123002/20001

[commit-bot: I haz the power, 2015-04-15 15:18:35]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-04-15 15:19:56]

Patchset 2 (id:??) landed as
https://crrev.com/ee3db43d851c57a6f93bced7178797c0d73f8c84
Cr-Commit-Position: refs/heads/master@{#325243}

[dshwang, 2015-04-17 14:37:53]

dongseong.hwang@intel.com changed reviewers:
+ dongseong.hwang@intel.com, zachr@chromium.org

[dshwang, 2015-04-17 14:37:53]

This CL broke amd64-generic_freon in qemu :'(
+zachr

Always black screen with following log
[4723:4723:0417/073217:ERROR:crtc_controller.cc(154)] drmModeSetCursor: device
/dev/dri/card0 crtc 18 handle 0 size 0x0: No such device or address

[spang, 2015-04-17 16:30:25]

On 2015/04/17 14:37:53, dshwang wrote:
> This CL broke amd64-generic_freon in qemu :'(
> +zachr
> 
> Always black screen with following log
> [4723:4723:0417/073217:ERROR:crtc_controller.cc(154)] drmModeSetCursor: device
> /dev/dri/card0 crtc 18 handle 0 size 0x0: No such device or address

https://codereview.chromium.org/1090263002/

[dshwang, 2015-04-20 09:59:14]

On 2015/04/17 16:30:25, spang wrote:
> On 2015/04/17 14:37:53, dshwang wrote:
> > This CL broke amd64-generic_freon in qemu :'(
> > +zachr
> > 
> > Always black screen with following log
> > [4723:4723:0417/073217:ERROR:crtc_controller.cc(154)] drmModeSetCursor:
device
> > /dev/dri/card0 crtc 18 handle 0 size 0x0: No such device or address
> 
> https://codereview.chromium.org/1090263002/

thx for fixing!