diff options
| author | Thierry Reding <treding@nvidia.com> | 2014-02-28 16:57:34 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2014-06-05 23:09:21 +0200 |
| commit | fb50a116bbbc25c7c11e00e6d10a53b9ec3c38e8 (patch) | |
| tree | 8f37152a6ed2b59aa407245a7dffa3d509a65919 /security | |
| parent | 0444c0ff3cef9f99b19bbb1f0b3f5d7a22daab25 (diff) | |
drm/tegra: hdmi - Add connector supply support
Revert commit 18ebc0f404d5 "drm/tegra: hdmi: Enable VDD earlier for
hotplug/DDC" and instead add a new supply for the +5V pin on the HDMI
connector.
The vdd-supply property refers to the regulator that supplies the
AVDD_HDMI input on Tegra, rather than the +5V HDMI connector pin. This
was never a problem before, because all boards had that pin hooked up to
a regulator that was always on. Starting with Dalmore and continuing
with Venice2, the +5V pin is controllable via a GPIO. For reasons
unknown, the GPIO ended up as the controlling GPIO of the AVDD_HDMI
supply in the Dalmore and Venice2 DTS files. But that's not correct.
Instead, a separate supply must be introduced so that the +5V pin can be
controlled separately from the supplies that feed the HDMI block within
Tegra.
A new hdmi-supply property is introduced that takes the place of the
vdd-supply and vdd-supply is only enabled when HDMI is enabled rather
than all the time.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions