diff options
| author | Jon Mayo <jmayo@nvidia.com> | 2014-04-16 10:30:20 -0700 |
|---|---|---|
| committer | Seema Khowala <seemaj@nvidia.com> | 2014-04-23 14:06:37 -0700 |
| commit | 9301b9ef329a7e13cb34dd7a6e638c060c0a3bad (patch) | |
| tree | d75895ee491c15ca776d8c0dba7fec1ae6afd528 /drivers/video | |
| parent | d5736a1cfd29f645148acecadd2a43d7861f24e1 (diff) | |
video: tegra: dc: optimize resume for hotplug devs
Optimize the resume path to only use the 100ms work around delay for
outputs that support hotplug wake and only when a panels is connected.
Bug 1494970
Change-Id: I0ea449cfd8eff162b7752fbc3f4c4f462f54b915
Signed-off-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-on: http://git-master/r/397468
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/tegra/dc/dc.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/video/tegra/dc/dc.c b/drivers/video/tegra/dc/dc.c index 57f9fa935122..a19b0cad9b9a 100644 --- a/drivers/video/tegra/dc/dc.c +++ b/drivers/video/tegra/dc/dc.c @@ -3300,10 +3300,13 @@ static int tegra_dc_suspend(struct platform_device *ndev, pm_message_t state) if (dc->out && dc->out->postsuspend) { dc->out->postsuspend(); - if (dc->out->type && dc->out->type == TEGRA_DC_OUT_HDMI) - /* - * avoid resume event due to voltage falling - */ + /* avoid resume event due to voltage falling on interfaces that + * support hotplug wake. And only do this if a panel is + * connected, if we are already disconnected, then no phantom + * hotplug can occur by disabling the voltage. + */ + if ((dc->out->flags & TEGRA_DC_OUT_HOTPLUG_WAKE_LP0) + && tegra_dc_get_connected(dc)) msleep(100); } |