diff options
| author | Chao Xu <cxu@nvidia.com> | 2013-09-24 16:14:45 -0700 |
|---|---|---|
| committer | Ajay Nandakumar <anandakumarm@nvidia.com> | 2013-10-03 19:17:27 +0530 |
| commit | 2f5f9f06e41ace0bb9ff5da57922ee5f7ce82852 (patch) | |
| tree | fdbee60423bcb0a0a2121155fdae3fc764a84088 | |
| parent | a891be73981eeeb4152fd125e56aa8306e9cb825 (diff) | |
video: tegra: dc: Fix HDMI powergating issue
Setting DISPB connected state after pending HPD is handled so DC won't
powergate DIPB accidentally.
Bug 1364348
Change-Id: Ib71267a73c205d1957972d462987e8f4cb542712
Signed-off-by: Chao Xu <cxu@nvidia.com>
Reviewed-on: http://git-master/r/278533
Reviewed-by: Automatic_Commit_Validation_User
(cherry picked from commit d6bee34206954a33f3245dea13d39c35b5fb9a5f)
Signed-off-by: Ajay Nandakumar <anandakumarm@nvidia.com>
| -rw-r--r-- | drivers/video/tegra/dc/hdmi.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/hdmi.c b/drivers/video/tegra/dc/hdmi.c index b7c6fb7f2d41..decd31f3702a 100644 --- a/drivers/video/tegra/dc/hdmi.c +++ b/drivers/video/tegra/dc/hdmi.c @@ -757,8 +757,15 @@ bool tegra_dc_hdmi_mode_filter(const struct tegra_dc *dc, /* used by tegra_dc_probe() to detect hpd/hdmi status at boot */ static bool tegra_dc_hdmi_detect(struct tegra_dc *dc) { + int hdmi_state; + hdmi_state_machine_set_pending_hpd(); /* result isn't used by dc */ + + hdmi_state = hdmi_state_machine_get_state(); + if (hdmi_state != HDMI_STATE_DONE_DISABLED && + hdmi_state != HDMI_STATE_RESET) + dc->connected = true; return true; } |