drm/tegra: DPMS off/on in encoder prepare/commit

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Previously the panel and output were only enabled on encoder->dpms(). If
userspace called dpms on before doing a modeset, the driver would get into
a state where the connector had a dpms state of ON, but the encoder and output
were not enabled (because the encoder is not yet attached to the connector).
Subsequent dpms ON calls are ignored b/c the connector's state already matches
the desired state.

This patch enables/disables the panel and output on modeset as well, so we
can catch the above case.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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Sean Paul 2014-10-29 15:33:35 -04:00 • committed by Thierry Reding

parent dc670e49e7

commit 0bfad39671

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/tegra/output.c

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